Wristband clasp and wristband assembly

The wristband assembly with a movable clasp uses spikes and bosses to deform and secure the wristband, addressing overtightening and nondestructive removal issues, requiring destruction for removal.

WO2026117726A1PCT designated stage Publication Date: 2026-06-04ARTEMAX INC

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
ARTEMAX INC
Filing Date
2025-11-26
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing wristbands with unidirectional clasps allow for overtightening and require destruction for removal, lacking effective prevention of nondestructive reuse.

Method used

A wristband assembly with a clasp that moves between assembled and locked positions, featuring spikes and bosses to deform and pierce the wristband, creating pinch points and U-shaped displacements, ensuring secure fitting and preventing unauthorized removal.

Benefits of technology

The clasp effectively secures the wristband without overtightening, allowing adjustment in the assembled state and ensuring destruction is required for removal, preventing unauthorized reuse.

✦ Generated by Eureka AI based on patent content.

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Abstract

A wristband assembly includes a wristband including a first end and a second end and a clasp. The clasp includes a button and a base that collectively surround the wristband, a first opening through which the first and second ends of the wristband enter the clasp, a second opening through which the first and second ends of the wristband depart the clasp, and a spike extending from the button or the base in a direction perpendicular to the first and second openings. The clasp is movable between a first position in which the wristband is movable within the clasp in a first direction and in a second direction and a second position in which the clasp is not movable in the first direction and is not movable in the second direction. The spike pierces through the wristband within the clasp in the second position.
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Description

Attorney Docket No. 026281-0003-W001WRISTBAND CLASP AND WRISTBAND ASSEMBLYCROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to U.S. Provisional Application No. 63 / 725,374, filed November 26, 2024 and U.S. Provisional Application No. 63 / 757,529, filed February 12, 2025, the entire contents of each of which are incorporated herein by reference.BACKGROUND

[0002] Wristbands provide evidence of admittance and / or payment in amusement parks, water parks, medical facilities and the like. In some instances, there is a desire to prevent nondestructive removal of the wristband to prevent reuse of the wristband by an unauthorized user. Existing wristbands have a clasp having unidirectional movement to tighten and prevent loosening and removal of the wristband from the user. This arrangement has drawbacks, as it permits overtightening of the wristband and requires destruction to remove.SUMMARY

[0003] In some aspects, the techniques described herein relate to a wristband assembly including: a wristband including a first end and a second end; and a clasp, the clasp including: a button and a base that collectively surround the wristband; a first opening through which the first and second ends of the wristband enter the clasp; a second opening through which the first and second ends of the wristband depart the clasp; and a spike extending from the button or the base in a direction perpendicular to the first and second openings; wherein the clasp is movable between a first position in which the wristband is movable within the clasp in a first direction and in a second direction and a second position in which the clasp is not movable in the first direction and is not movable in the second direction; and wherein the spike pierces through the wristband within the clasp in the second position.

[0004] In some aspects, the techniques described herein relate to a wristband assembly, wherein the button includes at least one finger extending toward the base, and the base includes a first ledge and a second ledge, wherein the at least one finger engages the first ledge when theAttorney Docket No. 026281-0003-W001 clasp is in the first position and engages the second ledge when the clasp is in the second position.

[0005] In some aspects, the techniques described herein relate to a wristband assembly, wherein the at least one finger includes a notch that defines a fracture point, wherein the at least one finger is configured to fracture at the fracture point when a force is applied to separate the button from the base when the clasp is in the second position.

[0006] In some aspects, the techniques described herein relate to a wristband assembly, wherein the clasp includes a plurality of spikes extending from the button toward the base and a plurality of spikes extending from the base toward the button, wherein the plurality of spikes cooperate to deform the wristband when the clasp is in the second position.

[0007] In some aspects, the techniques described herein relate to a wristband assembly, wherein the plurality of spikes are offset from one another to form pinch points along a width of the wristband.

[0008] In some aspects, the techniques described herein relate to a wristband assembly, wherein the button includes a first boss extending toward the base adjacent the first opening and a second boss extending toward the base adjacent the second opening, and the base includes a third boss extending toward the button adjacent the first opening and a fourth boss extending toward the button adjacent the second opening, wherein the first and third bosses cooperate to displace the wristband away from the first opening when the clasp is in the second position, and the second and fourth bosses cooperate to displace the wristband away from the second opening when the clasp is in the second position.

[0009] In some aspects, the techniques described herein relate to a wristband assembly, wherein the spike extends from the button toward the base and the base includes a recess configured to receive the spike when the clasp is in the second position.

[0010] In some aspects, the techniques described herein relate to a wristband assembly, wherein the wristband has a substantially rectangular cross-section outside the clasp, and the clasp is configured to distort the substantially rectangular cross-section of the wristband when the clasp is in the second position.Attorney Docket No. 026281-0003-W001

[0011] In some aspects, the techniques described herein relate to a wristband assembly including: a base of a clasp; a first end of a fabric wristband positioned on the base; a second end of the fabric wristband positioned on the first end of the fabric wristband; a button of the clasp positioned on the second end of the fabric wristband, wherein the button is movable from a first position, in which the button is coupled to the base, to a second position, in which the button is displaced towards the base and the first and second ends of the wristband are compressed and distorted within the clasp, wherein the clasp includes a spike extending from the button toward the base, wherein the spike pierces through the first and second ends of the fabric wristband when the button is in the second position.

[0012] In some aspects, the techniques described herein relate to a wristband assembly, wherein the button includes at least one finger extending toward the base, and the base includes a first ledge and a second ledge, wherein the at least one finger engages the first ledge when the button is in the first position and engages the second ledge when the button is in the second position.

[0013] In some aspects, the techniques described herein relate to a wristband assembly, wherein the at least one finger includes a notch that defines a fracture point, wherein the at least one finger is configured to fracture at the fracture point when a force is applied to separate the button from the base when the button is in the second position.

[0014] In some aspects, the techniques described herein relate to a wristband assembly, wherein the base includes a recess configured to receive the spike when the button is in the second position.

[0015] In some aspects, the techniques described herein relate to a wristband assembly, wherein the clasp includes a plurality of spikes extending from the button toward the base and a plurality of spikes extending from the base toward the button, wherein the plurality of spikes cooperate to deform the first and second ends of the fabric wristband when the button is in the second position.

[0016] In some aspects, the techniques described herein relate to a wristband assembly including: a wristband having a substantially rectangular cross-section; and a clasp having a baseAttorney Docket No. 026281-0003-W001 and a button positioned above the base, the button and base surrounding at least a portion of the wristband, the button including a first spike and a first boss extending downward toward the base, the base having a second spike and a second boss extending upward toward the button, wherein the first and second spikes cooperate to form a pinch point along a width of the wristband, distorting the substantially rectangular cross-section of the wristband and preventing movement of the wristband relative to the clasp, and wherein the first and second bosses cooperate to form a pinch point along a length of the wristband, distorting the wristband in a plane perpendicular to the distortion along the width of the wristband.

[0017] In some aspects, the techniques described herein relate to a wristband assembly, wherein the button is movable between a first position in which the wristband is movable within the clasp and a second position in which the first and second spikes and the first and second bosses cooperate to prevent movement of the wristband relative to the clasp.

[0018] In some aspects, the techniques described herein relate to a wristband assembly, wherein the first spike extends from the button toward the base and the second spike extends from the base toward the button, and wherein the first and second spikes are offset from one another along the width of the wristband.

[0019] In some aspects, the techniques described herein relate to a wristband assembly, wherein the first boss is positioned adjacent a first opening of the clasp and the second boss is positioned adjacent the first opening, and wherein the first and second bosses cooperate to displace the wristband away from the first opening.

[0020] In some aspects, the techniques described herein relate to a wristband assembly, wherein the clasp includes a third spike extending from the button toward the base, wherein the third spike pierces through the wristband when the button is moved to a locked position.

[0021] In some aspects, the techniques described herein relate to a wristband assembly, wherein the base includes a recess configured to receive the third spike when the button is in the locked position.

[0022] In some aspects, the techniques described herein relate to a wristband assembly, wherein the distortion along the width of the wristband creates a wave-like deformation of theAttorney Docket No. 026281-0003-W001 wristband, and the distortion along the length of the wristband creates a U-shaped displacement of the wristband.BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a perspective view of a wristband having a clasp movable from an assembled position to a locked position.

[0024] FIG. 2 is a front view of the clasp of FIG. 1.

[0025] FIG. 3 is a perspective view of the interior of a button of the clasp of FIG. 1.

[0026] FIG. 4 is a perspective view of the interior of a base of the clasp of FIG. 1.

[0027] FIG. 5 is an exploded side view of the cap and base of the clasp of FIG. 1.

[0028] FIG. 6 is an exploded front view of the cap and base of the clasp of FIG. 1.

[0029] FIG. 7 is a cross-sectional exploded view of the clasp of FIG. 1.

[0030] FIG. 8 is a cross-sectional view of the clasp of FIG. 1 in the assembled position.

[0031] FIG. 9 is a cross-sectional view of the clasp of FIG. 1 in the locked position.

[0032] FIG. 10A illustrates the cloth of the wristband with the clasp in the assembled position.

[0033] FIG. 10B illustrates the cloth of the wristband with the clasp in the locked position.

[0034] FIG. 11 illustrates a side view of the cloth of the wristband with the clasp in the locked position.

[0035] FIG. 12A is a perspective view of a wristband having a clasp according to a further embodiment.

[0036] FIG. 12B is a perspective view of the clasp of FIG. 12A.

[0037] FIG. 12C is a perspective view of the interior of a base of the clasp of FIG. 12A.Attorney Docket No. 026281-0003-W001

[0038] FIG. 12D is a perspective view of the interior of a cap of the clasp of FIG. 12A.

[0039] FIG. 13 A is a perspective view of a wristband having a clasp according to a further embodiment.

[0040] FIG. 13B is a cross-sectional view of the clasp of FIG. 13A.

[0041] FIG. 13C is a cross-sectional view through a base of the clasp of FIG. 13A.

[0042] FIG. 13D is a perspective view of a cap of the clasp of FIG. 13 A.

[0043] FIG. 14A is a perspective view of a wristband having a clasp according to a further embodiment.

[0044] FIG. 14B is a cross-sectional view of the clasp of FIG. 14A.

[0045] FIG. 14C is a first exploded view of the clasp of FIG. 14A.

[0046] FIG. 14D is a second exploded view of the clasp of FIG. 14A.

[0047] FIG. 15A is a perspective view of a wristband having a clasp according to a further embodiment.

[0048] FIG. 15B is a cross-sectional view of the clasp of FIG. 15 A.

[0049] FIG. 15C illustrates the interior of the base of the clasp of FIG. 15 A.

[0050] FIG. 15D illustrates the interior of the cap of the clasp of FIG. 15A.

[0051] FIG. 16A is a perspective view of a wristband having a clasp according to a further embodiment.

[0052] FIG. 16B is a cross-sectional view of the clasp of FIG. 16A.

[0053] FIG. 16C illustrates the interior of the base of the clasp of FIG. 16A.

[0054] FIG. 16D illustrates the interior of the cap of the clasp of FIG. 16A.Attorney Docket No. 026281-0003-W001

[0055] FIG. 17A is a perspective view of a wristband having a clasp according to a further embodiment.

[0056] FIG. 17B is a cross-sectional view of the clasp of FIG. 17A.

[0057] FIG. 17C is a first exploded perspective view of the clasp of FIG. 17A.

[0058] FIG. 17D is a second exploded perspective view of the clasp of FIG. 17A.

[0059] FIG. 18A is a perspective view of a wristband having a clasp according to a further embodiment.

[0060] FIG. 18B is a cross-sectional view of the clasp of FIG. 18A.

[0061] FIG. 18C is a perspective view of the interior of a base of the clasp of FIG. 18A.

[0062] FIG. 18D is a perspective view of the interior of a cap of the clasp of FIG. 18A.

[0063] FIG. 19A is a perspective view of a cap of a clasp for a wristband according to a further embodiment.

[0064] FIG. 19B is a perspective view of a button of the clasp of FIG. 19A.

[0065] FIG. 19C is a perspective view of a base of the clasp of FIG. 19A.

[0066] FIG. 19D is a cross-sectional view of the clasp of FIG. 19A.DETAILED DESCRIPTION

[0067] FIGS. 1-11 illustrate a wristband assembly including a clasp 100 and a wristband 104 according to a first embodiment. The clasp 100 includes two mating components, an upper component or button or cap 108 and a lower component or base 112. The button 108 and base 112 couple to one another in two distinct positions. A first, upper position (Figs. 1, 2, 8, 10A) is an assembled state in which the button 108 is attached to the base 112. A second, lower position (Figs. 9, 10B, 11) is a locked state in which the button 108 remains attached to the base 112, butAttorney Docket No. 026281-0003-W001 also secures the wristband 104 to prevent movement of the wristband 104 relative to the clasp 100.

[0068] The clasp 100 defines a first opening or entry opening 100A and a second opening or exit opening 100B (each shown as a substantially rectangular opening) through which the wristband 104 is configured to extend through the clasp 100 in a wristband extension direction D. The first and second openings 100A, 100B are located on opposing surfaces of the clasp 100 such that the wristband 104 passes through the interior of the clasp 100 to pass through both openings 100A, 100B. Each of the openings 100A, 100B is partially defined by the button 108 (i.e., a top side of the openings 100A, 100B) and partially defined by the base 112 (i.e., a bottom side of the openings 100A, 100B). The wristband 104 is a single length of fabric that extends from a first end 104 A to a second end 104B. To form a shape capable of extending around a wrist of a user, the wristband 104 is wrapped such that the two ends 104A, 104B are positioned adjacent one another or at least both extend through the clasp 100. Each end 104A, 104B of the wristband 104 passes through the first opening 100A, through the interior of the clasp 100, and out the second opening 100B. The remaining material of the wristband 104 forms a loop configured to extend around a wrist of a user.

[0069] The wristband 104 is configured to extend through the clasp 100 when the clasp 100 is in the assembled state. In some embodiments, assembly of the wristband 104 to the clasp includes providing the wristband 104 into a disassembled half of the clasp 100 (i.e., either the button 108 or the base 112) and assembling the other half of the clasp 100 into the assembled state, over and around the wristband 104. In other embodiments, the two ends 104A, 104B of the wristband 104 may be fed into the first opening 100A, through the interior of the clasp 100 and out of the second opening.

[0070] Each of the button 108 and the base 112 includes an exterior surface 108 A, 112A and an interior surface 108B, 112B. The exterior surfaces 108 A, 112A are engageable by a user when providing a force to move the clasp 100 from the assembled state to the locked state. For example, a user may squeeze the clasp 100 between a thumb and forefinger to move the clasp 100 from the assembled state to the locked state. Each of the button 108 and base 112 includes a non-planar interior surface 108B, 112B formed of a plurality of individual surfaces, with allAttorney Docket No. 026281-0003-W001 located generally opposite to the exterior surface. When in the locked state, the exterior surfaces 108 A, 112A are visible and remain accessible, whereas the interior surfaces are inaccessible and generally hidden.

[0071] The button 108 couples to the base 112 via at least one finger 116 of the button 108 (as shown, a pair of fingers) engaging ledges 124, 128 of the base 112 that correspond to the upper and lower positions, respectively. As shown in Figs. 8-9, each finger 116 is a generally L- shaped or hook-shaped protrusion extending toward the base 112 from the interior surface 108B of the button 108. The finger 116 is a flexible protrusion having the elasticity to bend against contact with the base 112 and flex back into engagement with the respective ledge 124, 128. Each finger 116 passes through an opening 120 formed on the interior surface 112B of the base 112 to reach the ledges 124, 128. With reference to Fig. 6, an engagement surface 116A (i.e., the surface of the finger 116 that engages the ledges 124, 128) of each finger 116 is substantially parallel to the ledges 124, 128 to prevent removal and disassembly, though an opposing surface 116B is rounded or chamfered to assist the assembly of the finger 116 to the base 112. As shown, the fingers 116 and ledges 124, 128 are located to either side of the openings 100A, 100B such that the wristband 104 passes between the fingers 116. When in the upper position (i.e., when the finger 116 engages the first ledge 124), the interior surfaces 108B, 112B of the button 108 and base 112 are spaced apart from one another. When in the lower position (i.e., when the finger 1 16 engages second ledge 128), the interior surfaces 108B, 1 12B of the button 108 and base 112 abut one another. While the clasp 100 is shown as having the fingers 116 on the button 108 and the ledges 124, 128 on the base 112, the reverse configuration could also be used.

[0072] The clasp 100 includes a plurality of wristband engaging elements that collectively restrain motion of the wristband 104 relative to the clasp 100 when the clasp is in the locked state. These same elements do not impede the ability to loosen and tighten the wristband 104 in the assembled state by permitting movement of the ends 104A, 104B of the wristband 104 relative to the clasp 100 to increase or decrease the size of the loop. By moving one or more of the ends 104A, 104B in a first direction (i.e., the wristband extension direction D), the size of the loop is decreased. By moving one or more of the ends 104A, 104B in an opposite, second direction, the size of the loop is increased. In some embodiments, at least some of the wristband engaging elements maintain contact with the wristband 104 to prevent accidental disassembly ofAttorney Docket No. 026281-0003-W001 the clasp 100 from the wristband 104. The wristband engaging elements include one or more spikes 132 (as shown, one) for piercing the wristband 104, a corresponding recess 136 for receiving the spike 132, one or more spikes 140, 144 which cooperate for deforming the generally rectangular cross-section of the wristband 104, and offset bosses or shoulders 148, 152 that collectively displace the wristband 104 within the clasp 100 away from the openings 100A, 100B.

[0073] The spike 132 extends towards the base 112 (i.e., with the fingers 116) from an interior surface 108B of the button 108. The spike 132 narrows to a point at a distal end and is sharp enough to pierce the fabric of the wristband 104. In the assembled state, the spike 132 is spaced apart from the base 112 to provide free movement of the wristband 104 between the spike 132 and the base 112. In the locked state, the spike 132 extends downward into the recess 136 (e g., a conical recess) formed into an interior surface 112B of the base 112. To access the recess 136, the spike 132 passes through the wristband 104 (i.e., both ends 104A, 104B of the wristband 104). The spike 132 is centrally located so as to pierce the center (widthwise) of the wristband 104.

[0074] The spikes 140, 144 include upper spikes 140 formed on the underside of the button 108 and lower spikes 144 formed on the top side of the base 112. The upper spikes 140 are offset from but located adjacent to the lower spikes 144 to form pinch points along the width of the clasp 100 and wristband 104. As shown in Fig. 10B, the spikes 140, 144 cooperate with one another to displace the wristband around the spikes 140, 144 in the locked state, distorting the cross-section of the wristband 104 relative to the generally rectangular cross-section outside of the clasp 100. This distortion and deformation of the wristband 104 further prevents movement of the wristband 104 relative to the clasp 100 in the locked state. In contrast, in the assembled state, as seen in Fig. 10A, the spikes 140, 144 are spaced apart from one another by a substantial enough distance that the wristband is not significantly impaired or impeded from movement therebetween in the direction D (i.e., to loosen or tighten the wristband 104 relative to a user’s wrist). The spikes 140, 144 are smaller in height than the spike 132 as they are not intended to pierce the wristband 104 and they lack corresponding recesses within the opposing surfaces.Attorney Docket No. 026281-0003-W001

[0075] The bosses 148, 152, similar to the spikes 140, 144 are formed on the button 108 and the base 112 adjacent each opening 100A, 100B, respectively, and are offset from one another to form pinch points. Unlike the spikes 140, 144, the bosses 148, 152 form a pinch point along the length direction of the wristband 104, as shown in Fig. 11, displacing the wristband 104 away from the openings 100A, 100B. The button 108 includes two upper bosses 148, one located adjacent the first opening 100A, and another located adjacent the second opening 100B, each spanning the width of the respective opening 100 A, 100B. Each of the upper bosses 148 extends downward from an interior surface 108B towards the base 112 and terminates at a sharp (e.g., pointed) edge. The base 112 includes two lower bosses 152, similarly located adjacent to and spanning the width of the two openings 100A, 100B. Each of the lower bosses 152 extends upward from an interior surface 112B of the base 112 towards the button 108 and terminates at a sharp edge or corner. In the assembled state, the bosses 148, 152 are vertically spaced apart from one another by a distance (with the upper boss terminating above the lower boss) such that a gap is formed between them through which the wristband 104 passes. In the locked state, the bosses 148, 152 vertically (i.e., perpendicular to the plane of the wristband 104) overlap one another such that the openings 100 A, 100B are effectively closed off from the interior of the clasp 100 and the wristband 104 is displaced downward towards the base 112 and away from the openings 100A, 100B.

[0076] Fig. 10A illustrates the space afforded to the wristband 104 within the clasp 100 in the assembled state. The wristband 104 is capable of motion in either direction through the clasp 100 to increase or decrease the size of the loop as the wristband engaging elements do not preclude this motion. Fig. 10B illustrates the significantly decreased space afforded to the wristband 104 in the locked state. The spike 132 pierces the wristband 104 and the spikes 140, 144 deform the wristband 104 in a wave-like manner along its width. Fig. 11 is a side view of the clasp 100 and illustrates the bosses 148, 152 displacing the wristband 104 out of plane with the openings 100A, 100B in a U-shaped manner. Collectively, the wristband engaging elements preclude movement of the wristband, for tightening or loosening, when in the locked state. This prevents non-destructive removal once sized to a user’s wrist, and also prevents overtightening as the desired loop size can be locked in by moving the button 108 relative to the base 112 from the upper position and assembled state to the lower position and locked state.Attorney Docket No. 026281-0003-W001

[0077] The fingers 116 of the cap 108 each include an engagement surface 1 16A (i.e., the surface of the finger 116 that engages the ledges 124, 128). The engagement surface 116A is substantially parallel to the ledges 124, 128 to prevent removal and disassembly. In addition to the engagement surface 116A, a notch 116C located on a rear side of the finger 116 (opposite the front side supporting the engagement surface 116A) is recessed into the finger 116 such that the finger 116 thins down to a minimum thickness (measured perpendicular to the insertion direction of the finger 116) at the notch 116C. In the embodiment shown, the notch 116C is a rectangular notch having an upper surface, a lower surface, and an inner surface connecting the upper surface to the lower surface. In other embodiments, the notch may be, for example, V-shaped.

[0078] The minimum thickness is a thinned portion formed by the notch 116C between the notch 116C and the engagement surface 116 A. In the embodiment shown, the engagement surface 116A and the notch 116C are coplanar. As illustrated, the lower surface of the notch 116C and the engagement surface 116A are coplanar. The decreased thickness at the notch 116C results in a weakness and fracture point at the plane defined by the engagement surface 116A and the notch 116C. This thinning increases the flexibility of the finger 116 such that the engagement surface 116A is capable of more easily transitioning from the upper position to the lower position. Additionally, the thinning results in a fracture point (i.e., stress point) such that if a user attempts to remove the cap 108 from the base 112 or otherwise displace it from the second (lower) position back to the first (upper) position, the finger 116 fractures, separating the lower portion of the finger 116 (having the engagement surface 116A and the lower edge of the notch 116C) from the upper portion of the finger 116 at the thinned portion 134. Such fracture renders the clasp 100 inoperable for reassembly, thereby preventing unauthorized removal and reuse of the clasp 100.

[0079] The outer walls of the base 112 (within which two openings 122, 126 are formed) have a thickness sufficient to limit the space for the finger 116 to flex away from the ledges 124, 128, thereby increasing the difficulty of non-destructive disassembly. Openings 122, 126 within the outer wall provide additional space for flexural movement of the finger 116 during assembly into the two ledges 124, 128. However, the presence of the outer wall between the two openings 122, 126 at a location adjacent the notch 116C, when assembled, prevents non-destructive flexing of the finger 116 out of engagement with the ledge 128. In some embodiments, theAttorney Docket No. 026281-0003-W001 openings 122, 126 facilitate molding of the ledges 124, 128 in production. In other embodiments, the openings 122, 126 may be replaced with recesses that do not extend fully through the outer wall. The increased thickness of the outer wall limits mobility of the finger 116 out of engagement with the ledges 124, 128 and provides additional strength such that the failure point during separation of the cap 108 from the base 112 is the finger 116. In operation, if a user attempts to remove the cap 108 from the base 112, for example, by pulling on the wristband sandwiched therebetween, at a sufficient force, the bottom portion of one or both of the fingers 116 (e.g., at the thinned portion 134, and / or below the plane defined by the notch 116C and / or, in some embodiments, the engagement surface 116A) will fracture away from the remainder of the finger 116, thereby permitting separation of the cap 108 from the base 112, but prohibiting reassembly of the same to secure a wristband.

[0080] In some embodiments, the clasp 100 (including the cap 108 and the base 112) is formed of a plastic material having a low flexural modulus such as polyester, polycarbonate, acrylic, acrylonitrile butadiene styrene (ABS), or a polycarbonate and ABS polymer blend. The above materials are glass-filled a minimum 20% to a maximum of 35% depending on which material is selected. In one specific example, polybutylene terephthalate (PBT) at 25% glass- filled is used. Such materials are rigid to provide for fracture at the desired fracture point.

[0081] In operation, a user (or an attendant assisting a user) places the wristband 104 about the wrist of a user with the clasp 100 in the assembled state. The ends 104A, 104B of the wristband 104 are then moved relative to the clasp 100 as necessary to loosen or tighten the wristband 104 on the wrist. Oftentimes, the wristband 104 is tightened to a point where it is not removable (without destruction) but is loose enough to not be tightly grasping or pinching the user’s wrist. When in the assembled state, the wristband 104 is continually adjustable to loosen or tighten. Once a desired loop size (dictated by the position of the clasp 100 on the wristband 104) is determined, the user applies a force to the external surfaces 108 A, 112A of the button 108 and base 112 to displace the fingers 116 from the first ledge 124 to the second ledge 128, moving the clasp 100 to the second position and locked state. In moving to the locked state, the spike 132 pierces the wristband 104 and the spikes 140, 144 and bosses 148, 152 deform the wristband 104 within the clasp 100. After transitioning the clasp 100 to the locked state, theAttorney Docket No. 026281-0003-W001 wristband is neither capable of loosening nor tightening. Once in the locked state, in order to remove the wristband 104 from the wrist of a user, the wristband is destroyed (e.g., cut).

[0082] Figs. 12A-12D illustrate a further clasp 200 for a wristband 204. The clasp 200 includes two components, a button 208 and a base 212, the button 208 being attachable and rotatable relative to the base 212 to secure the wristband 204 at a desired loop size. The base 212 includes a first opening 200A through which the two ends 204A, 204B of the wristband 204 are inserted into the clasp 200. The button 208 includes a second opening 200B through which the two ends 204A, 204B of the wristband 204 pass again out of the clasp 200. In contrast to the clasp 100, the first opening 200A is fully defined by the base 212 and the second opening 200B is fully defined by the button 208.

[0083] The base 212 is generally cylindrical, having protrusions 216 extending outward from a cylindrical sidewall to provide a gripping surface for a user to grasp the base 212. The button 208 includes a substantially cylindrical sidewall to mate with the base 212, though first and second engagement surfaces 220, 224 extend parallel to one another adjacent the second opening 200B to be engaged by a thumb and a finger of a user. Each of the base 212 and button 208 are separately graspable such that a user can impart relative rotation between them, to secure the wristband 204 in the desired position.

[0084] The base 212 includes a finger 228 (as shown, two fingers 228) formed into the cylindrical sidewall, though attached to the cylindrical sidewall only at an end such that the finger 228 can flex relative to the remainder of the sidewall. Each finger 228 includes a locking surface 228A and a ramped surface 228B that selectively engage teeth 230 of the button 208. Each of the teeth 230 also includes a locking surface 230A and a ramped surface 230B. When the button 208 is attached to the base 212, the fingers 228 rest within the recesses formed between the teeth 230, with the ramped surfaces 228B, 230B located adjacent (e.g., in abutment) with one another and the locking surfaces 228A, 230A located adjacent (e.g., in abutment) with one another. The ramped surfaces 228B, 230B and the flexibility of the finger 228 allows for relative rotation between the base 212 and the button 208, with the finger 228 flexing and rising along the teeth 230 until it falls into the next gap between teeth 230. The locking surfaces 228A,Attorney Docket No. 026281-0003-W001230A extend substantially perpendicular to the rotational direction where they abut one another and thereby prevent relative rotation in the opposite direction.

[0085] The base 212 includes a central opening 240 spaced apart from the first opening 200A through which the wristband 204 extends. The button 208 includes a similar central opening 244 that, when coupled to the base 212, is located adjacent the central opening 240 of the base 212. Each of the central openings 240, 244 corresponds essentially to the width and height of the two stacked ends 204A, 204B of the wristband 204 and are substantially smaller in size than the overall clasp 200. The button 208 includes a plurality (e.g., eight, as shown) of circumferentially-positioned prongs 250 (e.g., flexible prongs) that collectively grasp an annular ledge 248 of the base 212 to couple the button 208 to the base 212.

[0086] In use, the button 208 is coupled to the base 212 axially by flexing the prongs 250 past the ledge 248 and into engagement with the ledge 248. With the button 208 coupled to the base 212, the clasp 200 is in an assembled state. The button 208 is coupled to the base 212 in a particular orientation such that the central openings 240, 244 are aligned with one another to permit passage of the two ends 204A, 204B of the wristband 204 therethrough. A user passes the two ends 204A, 204B of the wristband through the first opening 200A, through the central openings 240, 244, and out the second opening 200B. The wristband 204 is adjustable to loosen and tighten to a desired loop size to accommodate the wrist of the user. The button 208 and base 212 are each grasped and relative rotation is imparted therebetween to rotate the fingers 228 over consecutive teeth 230. The rotation of the button 208 relative to the base 212 twists the wristband 204 within the clasp 200, thereby preventing further loosening or tightening of the loop. With the button 208 rotated relative to the base 212, the clasp 200 is in a locked state. Once in a locked state, the wristband 204 and clasp 200 are removable and separable only via destruction (e.g., cutting of the wristband 204).

[0087] Figs. 13 A-13D illustrate a further clasp 300 for a wristband 304. The clasp 300 includes a first opening 300A for receiving a first end 304A of the wristband 304, a second opening 300B for receiving a second end 304B of the wristband 304, and a third opening 300C through which an extra amount of the second end 304B of the wristband may extend depending on the desired loop size of the wristband 304. The clasp 300 includes a base 312 and a rotatableAttorney Docket No. 026281-0003-W001 or pivoting button 308. As shown in Fig. 13B, the clasp 300 also includes an insert 316 having one or more teeth 320 for piercing the first end 304A of the wristband 304 to couple the wristband 304 to the base 312. As shown, the tooth 320 extends into a conical opening 324 formed in an underside of the base 312. A detent or other engagement feature (e.g., similar to the ledges 352, 356 shown in Figs. 13C and 13D or the ledge 716A shown in Fig. 17C) non- removably couple and secure the insert 316 to the base 312.

[0088] With continued reference to Fig. 13B, the button 308 and base 312 collectively define a circuitous path through which the wristband 304 is configured to pass. The circuitous path extends from the second opening 300B to the third opening 300C and is defined by a plurality of teeth or spikes 328, 332, 336 extending into corresponding recesses 340, 344, 348 within the base 312. Fig. 13D illustrates the teeth 328, 332, 336 as extending the full width of the button 308. The button 308 is coupled to the base 312 via cylindrical bosses 364, which are positioned within circular openings 360 located in the sidewall of the base 312. The bosses 364 define a rotational axis 372 about which the button 308 is freely rotatable relative to the base 312. A ledge 356 (or two ledges on opposing sides) on the button 308, when pushed past a corresponding ledge 352 on the base 312, locks the clasp 300 and prevents rotation of the button 308 relative to the base 312 and also presses the button 308 into the wristband 304 within the circuitous path, thereby preventing removal of the wristband 304 from the clasp 300 and movement of the wristband 304 relative to the clasp 300.

[0089] In use, the first end 304A of the wristband 304 is secured to the base 312 and the button 308 is coupled to and rotatable relative to the base 312. The clasp 300 is in an assembled state. The user feeds the second end 304B of the wristband 304 through the second opening 300B and tightens and loosens the wristband 304 as desired to size the loop of the wristband 304 appropriately to the size of the user’s wrist. The button 308 is rotated downward towards the base 312 until the ledges 352, 356 are in engagement with one another to prevent further rotation of the button 308 and to trap the second end 304B of the wristband 304 within the circuitous path defined by the teeth 328, 332, 336. With the button 308 rotated and secured in the lowered position to the base 312, the clasp 300 is in a locked state. Once in a locked state, the wristband 304 and clasp 300 are removable and separable only via destruction (e g., cutting the wristband 304).Attorney Docket No. 026281-0003-W001

[0090] Figs. 14A-14D illustrate a further clasp 400 for a wristband 404. The clasp 400 includes a first opening 400A for receiving a first end 404A of the wristband 404, a second opening 400B for receiving a second end 404B of the wristband 404, and a third opening 400C through which an extra amount of the second end 404B of the wristband 404 may extend depending on the desired loop size of the wristband 404. A button 408 is located within a housing defined by an upper housing 412 and a lower housing 416. A base 420 is located below the lower housing 416, is secured to the lower housing 416, and includes a spike 436 (as shown, three spikes) that pierces the first end 404A of the wristband 404 (extending into an opening 440 in the lower housing 416) to secure the first end 404A to the lower housing 416 and base 420.

[0091] The upper housing 412 includes a central opening 414 through which the button 408 is accessible. As shown, the central opening 414 is substantially rectangular and extends across a majority of the upper surface of the upper housing 412. An upper surface of the button 408 includes a plurality of engagement features 424A formed as protrusions for a user’s finger to press against to move the button 408 relative to the housing 412, 416 and base 420. The underside of the base 420 similarly includes engagement features 424B.

[0092] An underside of the button 408 includes a spike 428 (as shown, three spikes 428) for piercing the second end 404B of the wristband 404. The button 408 is movable between an upper position (an assembled state shown in Fig. 14B) in which the wristband 404 is movable within the clasp 400 to loosen or tighten the loop of the wristband 404, and a lowered position (a locked state), in which the spike 428 pierced the wristband 404 and enters the recess 432 within the lower housing 416 such that no further adjustment is possible. The button 408 includes a ledge 456 located on two opposing edges that engages respective ledges 452 formed on the upper housing 412 when the button 408 is in the locked state. A slice bar 448 rests within channels 450A, 450B in the upper and lower housings 412, 416, respectively. As shown in Fig. 14B, the slice bar 448 extends within the path of the wristband 404 inside the clasp 400 between the second and third openings 400B, 400C to force the strap 404 against the blade 457 in a guillotine-like action cut an excess portion of the wristband 404.

[0093] In use, the first end 404A of the wristband 404 is secured between the lower housing 416 and the base 420 and the button 408 is positioned within the housing 412, 416. The claspAttorney Docket No. 026281-0003-W001400 is in an assembled state. The user feeds the second end 404B of the wristband 404 through the second opening 400B and tightens and loosens the wristband 404 as desired to size the loop of the wristband 404 appropriately to the size of the user’s wrist. The button 408 is pressed by the user downward towards the base 420, piercing the wristband 404 within the clasp 400, until the ledges 452, 456 are in engagement with one another to hold the button 408 in the locked state. In the locked state, the wristband 404 and clasp 400 are removable and separable only via destruction (e.g., cutting the wristband 404).

[0094] Figs. 15A-15D illustrate a further clasp 500 for a wristband (not shown, though similar to the wristband 104). Operation of the clasp 500 is similar to the clasp 100, with the clasp being movable downwards from an assembled state to a locked state. The button 508 includes an upper (exterior) side 508A and a lower (interior) side 508B and has fingers 516 that engage an upper ledge 520 in an assembled state and a lower edge 524 in a locked state. The button 508 includes spikes 528 that extend downward from an underside of the button 508, piercing the wristband in the locked position, and into recesses 532 in the base 512. The spikes 528 otherwise provide space for the wristband to pass through the openings 500A, 500B in the assembled state.

[0095] In contrast to the clasp 100, the clasp 500 is generally circular (i.e., cylindrical), with a cylindrical base 512 and a cylindrical button 508 having a diameter less than the diameter of the base 512. Each of the exterior sides 508A, 512A of the button 508 and the base 512 are rounded. Rather than having fingers 116 that extend inward to grasp a ledge 124, 128, the fingers 516 extend outward to engage ledges 520, 524 formed within the base 512. Additional modifications include the inclusion of multiple (as shown, three) piercing spikes 528 that extend downward from the button 508 and into the base 512. The base includes multiple (as shown, two) rows of spikes 536, with three spikes 536 per row. The two rows of spikes 536 are located on opposing sides of the recesses 532, with each spike 536 of a row spaced apart from one another to engage different points along the width of the wristband. The spikes 536 do not pierce the wristband but provide tension and wave-like deformation against the wristband to further prevent removal.Attorney Docket No. 026281-0003-W001

[0096] In use, the button 508 is assembled to the base 512 in an assembled state with the fingers 516 engaging the upper ledge 520 and the openings 500A, 500B through which the wristband is fed being unimpeded by the spikes 528, 536. As with the first embodiment described above, the first end 504A and second end 504B of a wristband (not shown) are fed through the first opening 500 A, through the interior of the clasp 500, and out the second opening 500B. The user tightens and loosens the wristband as desired to size the loop of the wristband appropriately to the size of the user’s wrist. The button 508 is pressed by the user downward towards the base 512, piercing the wristband within the clasp 500, until the fingers 516 engage the lower ledge 524 to hold the button 508 in the locked state. In the locked state, the wristband and clasp 500 are removable and separable only via destruction (e.g., cutting of the wristband).

[0097] Figs. 16A-16D illustrate a further clasp 600 for a wristband (not shown). The clasp 600 is similar to the clasp 500, except as otherwise described, with like elements annotated with like reference numerals, incremented by 100. The clasp 600 omits the spikes 528, 536 and replaces them with larger spikes 636 configured to pierce the wristband when the clasp 600 is in the locked state and lowered position. When in the assembled state and upper position, the spikes 628, 636 do not inhibit movement of the wristband through the openings 600A, 600B. The spikes 636 extend upward from the base 612 and into recesses 640 in the underside of the button 608. The lower spikes 636 include two spikes positioned on opposite sides of the recess 632 that receives the upper spike 628. With this arrangement, the wristband is pierced from both sides at different locations along the width of the wristband when in the locked state.

[0098] In use, the clasp 600 operates similarly to the clasp 500. When the button 608 is pressed by a user, the button lowers from the assembled state to the locked state with the fingers 616 engaging the lower ledge 624, the spike 628 piercing the wristband from above, and the spikes 636 piercing the wristband from below.

[0099] Figs. 17A-17D illustrate a further clasp 700 for a wristband 704. The clasp 700 includes a button 708, a base 712, and an insert 716. First, second, and third openings 700A, 700B, 700C for the wristband 704 are similar to the first, second, and third openings 300 A, 300B, 300C of the clasp 300. The first opening 700A receives a first end 704A of the wristband 704, the second opening 700B receives a second end 704B of the wristband 704, and the thirdAttorney Docket No. 026281-0003-W001 opening 700C permits a portion of the second end 704B of the wristband 704 to extend out of the clasp 700 depending on the desired loop size of the wristband 704. The first end 704A of the wristband 704 is secured to the base 712 via one or more spikes 720 piercing the first end 704A, the spike extending into a recess 724 in the underside of the base 712. A ledge 716A on the insert 716 engages a ledge or recess (not shown) on the base 712 to secure the insert 716 to the base 712.

[0100] The button 708 includes a passage extending from the second opening 700B through the button 708 through which the second end 704B of the wristband 704 extends. A spike 728 (as shown, a triangular prism extending the width of the button 708) extends parallel to the passage. Similarly, spikes 736 (as shown, three spikes) located above the spike 728 extend parallel to the passage. In this way, the clasp 700 deviates from the previous embodiments, as the spikes extend substantially parallel with the looping direction of the wristband 704 (as opposed to being substantially perpendicular). The spikes 728, 736 are received within respective recesses 732, 740 formed within the base 712. The button 708 is coupled to the base 712 via engagement of a ledge 744 (as shown, two ledges 744 located on opposite sides of the base 712) with one of two ledges 748, 752 formed on the button 708. The wristband 704 follows a circuitous, stairstep pattern through the clasp 700 and is pierced by the spikes 728, 736 and / or pressed into the recesses 732, 740 by the spikes 728, 736 to secure the wristband 704 relative to the clasp 700.

[0101] In use, the first end 704A of the wristband 704 is secured to the base 712, the second end 704B is fed through the button 708, and the ledge 744 is moved into engagement with the ledge 748. The clasp 700 is in an assembled state. The second end 704B of the wristband 704 is tightened and loosened as desired to size the loop of the wristband 704 appropriately to the size of the user’s wrist. The button 708 is pushed towards the base 712, unseating the ledge 744 from the ledge 748 and into engagement with the ledge 752, trapping the wristband 704 within the confines of the clasp 700 via the spike 728 pressing against the wristband 704 and the spikes 736 piercing or pressing against the wristband 704. The second end 704B of the wristband 704 is trapped within the circuitous path defined by the base 712 and button 708. With the button 708 secured in the second position, the clasp 700 is in a locked state. Once in a locked state, theAttorney Docket No. 026281-0003-W001 wristband 704 and clasp 700 are removable and separable only via destruction (e.g., cutting of the wristband 704).

[0102] Figs. 18A-18D illustrate a further clasp 800 for a wristband 804. The clasp 800 is similar to the clasp 300, with like elements identified by like reference numerals, incremented by 500, except as otherwise described. The clasp 800 includes a button 808 coupled to a base 812 via one or more molded, live hinges 811 to secure the wristband 804 and prevent loosening or tightening of the wristband 804 when in a locked state. One or more molded, live hinges 813 are also employed to secure the insert 816 to the base 812. The underside of the button 808 includes a plurality of spikes 828 (as shown, three spikes) formed as trapezoidal prisms extending the width of the button 808 and an outer spike 832 having a decreased height compared to the remaining spikes 828. The base 812 includes recesses 836 to accommodate the spikes 828, 832. The spikes 828, 832 collectively engage the second end 804B of the wristband 804 to deform the wristband 804 within the clasp 800. In addition, a cutting bar 844 spans the width of the button 808 and engages a cutting blade 840 secured to the base to cut an extraneous portion of the second end 804B of the wristband 804. The button 808 is movable relative to the base 812 via rotation about the live hinge 811.

[0103] In use, the first end 804A of the wristband 804 is secured between the base 812 and the insert 816 by rotating the insert 816 about the live hinge 813 until the insert 816 pierces the first end 804A. The clasp 800 is in an assembled state. The user feeds the second end 804B of the wristband 804 through the second opening 800B and tightens and loosens the wristband 804 as desired to size the loop of the wristband 804 appropriately to the size of the user’s wrist. The button 808 is rotated relative to the base 812 about the live hinges 811 until it is snapped into place and secured to the base 812 with the spikes 828, 832 deforming and / or piercing the wristband 804 within the clasp 800 and the cutting blade 840 and cutting bar 844 slicing off an excess portion of the second end 804B of the wristband 804. The clasp 800 is in a locked state. Once in a locked state, the wristband 804 and clasp 800 are removable and separable only via destruction (e.g., cutting).

[0104] Figs. 19A-19D illustrate a further clasp 900 for a wristband (not shown). The clasp 900 is similar to the clasp 600, except as otherwise described, with like elements annotated withAttorney Docket No. 026281-0003-W001 like reference numerals, incremented by 300. The clasp 900 has a generally spherical base 912 and a cylindrical button 908 having a diameter less than the diameter of the base 912. A top surface 908A of the button is curved. Fig. 19A illustrates the button 908 positioned in an assembled but unlocked state. In a locked state, in which the button 908 is pressed downward into the base 912, the curved top surface 908 A of the button generally follows the spherical contour of the outer surface 912A of the base 912. The base 912 includes three openings, an upper opening 958 that receives the button 908 and two side openings 900A, 900B through which the wristband (not shown) is configured to extend. The side openings 900A, 900B (through which the wristband is configured to extend in use) define the ledges 920 that engage the fingers 916A, 916B of the button 908. The button 908 includes two rows of fingers 916A, 916B offset from one another along a length of the cylindrical sidewall of the button 908. The lower pair of fingers 916A are configured to engage the ledges 920 in the installed position and the upper pair of fingers 916B are configured to engage the ledges 920 when the button 908 has been depressed into the base 912 to place the clasp 900 in the locked position. In the illustrated embodiment, the lower pair of fingers 916A define a lowest portion of the button 908 and extend downward and outward from a longitudinal extent of the cylindrical sidewall. The upper pair of fingers 916B are located longitudinally between the lower pair of fingers 916A and the top surface 908 A. A piercing spike 928 extends upwards from an interior of the base 912 towards the button 908 to pierce the wristband passing through the two openings 900 A, 900B when the clasp 900 is locked.

[0105] In use, the button 908 is assembled to the base 912 in an assembled state with the lower fingers 916A engaging the ledge 920 and the openings 900A, 900B through which the wristband is fed being unimpeded by the spike 928 or the body of the button 908 (as shown best in Fig. 19D. As with the first embodiment described above, the first end and second end of a wristband (not shown) are fed through the first opening 900A, through the interior of the clasp 900, and out the second opening 900B. The user tightens and loosens the wristband as desired to size the loop of the wristband appropriately to the size of the user’s wrist. The button 908 is pressed by the user downward towards the base 912, piercing the wristband within the clasp 900, until the upper pair of fingers 916B engage the ledge 920 to hold the button 908 in the locked state. In the locked state, the wristband and clasp 900 are removable and separable only via destruction (e.g., cutting of the wristband).

Claims

Attorney Docket No. 026281-0003-W001CLAIMSWhat is claimed is:

1. A wristband assembly comprising: a wristband including a first end and a second end; and a clasp, the clasp including: a button and a base that collectively surround the wristband; a first opening through which the first and second ends of the wristband enter the clasp; a second opening through which the first and second ends of the wristband depart the clasp; and a spike extending from the button or the base in a direction perpendicular to the first and second openings; wherein the clasp is movable between a first position in which the wristband is movable within the clasp in a first direction and in a second direction and a second position in which the clasp is not movable in the first direction and is not movable in the second direction; and wherein the spike pierces through the wristband within the clasp in the second position.

2. The wristband assembly of claim 1, wherein the button includes at least one finger extending toward the base, and the base includes a first ledge and a second ledge, wherein the at least one finger engages the first ledge when the clasp is in the first position and engages the second ledge when the clasp is in the second position.

3. The wristband assembly of claim 2, wherein the at least one finger includes a notch that defines a fracture point, wherein the at least one finger is configured to fracture at the fracture point when a force is applied to separate the button from the base when the clasp is in the second position.

4. The wristband assembly of claim 1, wherein the clasp includes a plurality of spikes extending from the button toward the base and a plurality of spikes extending from the base toward the button, wherein the plurality of spikes cooperate to deform the wristband when the clasp is in the second position.Attorney Docket No. 026281-0003-W0015. The wristband assembly of claim 4, wherein the plurality of spikes are offset from one another to form pinch points along a width of the wristband.

6. The wristband assembly of claim 1, wherein the button includes a first boss extending toward the base adjacent the first opening and a second boss extending toward the base adjacent the second opening, and the base includes a third boss extending toward the button adjacent the first opening and a fourth boss extending toward the button adjacent the second opening, wherein the first and third bosses cooperate to displace the wristband away from the first opening when the clasp is in the second position, and the second and fourth bosses cooperate to displace the wristband away from the second opening when the clasp is in the second position.

7. The wristband assembly of claim 1, wherein the spike extends from the button toward the base and the base includes a recess configured to receive the spike when the clasp is in the second position.

8. The wristband assembly of claim 1, wherein the wristband has a substantially rectangular cross-section outside the clasp, and the clasp is configured to distort the substantially rectangular cross-section of the wristband when the clasp is in the second position.

9. A wristband assembly comprising: a base of a clasp; a first end of a fabric wristband positioned on the base; a second end of the fabric wristband positioned on the first end of the fabric wristband; a button of the clasp positioned on the second end of the fabric wristband, wherein the button is movable from a first position, in which the button is coupled to the base, to a second position, in which the button is displaced towards the base and the first and second ends of the wristband are compressed and distorted within the clasp, wherein the clasp includes a spike extending from the button toward the base, wherein the spike pierces through the first and second ends of the fabric wristband when the button is in the second position.

10. The wristband assembly of claim 9, wherein the button includes at least one finger extending toward the base, and the base includes a first ledge and a second ledge, wherein the atAttorney Docket No. 026281-0003-W001 least one finger engages the first ledge when the button is in the first position and engages the second ledge when the button is in the second position.

11. The wristband assembly of claim 10, wherein the at least one finger includes a notch that defines a fracture point, wherein the at least one finger is configured to fracture at the fracture point when a force is applied to separate the button from the base when the button is in the second position.

12. The wristband assembly of claim 9, wherein the base includes a recess configured to receive the spike when the button is in the second position.

13. The wristband assembly of claim 9, wherein the clasp includes a plurality of spikes extending from the button toward the base and a plurality of spikes extending from the base toward the button, wherein the plurality of spikes cooperate to deform the first and second ends of the fabric wristband when the button is in the second position.

14. A wristband assembly comprising: a wristband having a substantially rectangular cross-section; and a clasp having a base and a button positioned above the base, the button and base surrounding at least a portion of the wristband, the button including a first spike and a first boss extending downward toward the base, the base having a second spike and a second boss extending upward toward the button, wherein the first and second spikes cooperate to form a pinch point along a width of the wristband, distorting the substantially rectangular cross-section of the wristband and preventing movement of the wristband relative to the clasp, and wherein the first and second bosses cooperate to form a pinch point along a length of the wristband, distorting the wristband in a plane perpendicular to the distortion along the width of the wristband.Attorney Docket No. 026281-0003-W00115. The wristband assembly of claim 14, wherein the button is movable between a first position in which the wristband is movable within the clasp and a second position in which the first and second spikes and the first and second bosses cooperate to prevent movement of the wristband relative to the clasp.

16. The wristband assembly of claim 14, wherein the first spike extends from the button toward the base and the second spike extends from the base toward the button, and wherein the first and second spikes are offset from one another along the width of the wristband.

17. The wristband assembly of claim 14, wherein the first boss is positioned adjacent a first opening of the clasp and the second boss is positioned adjacent the first opening, and wherein the first and second bosses cooperate to displace the wristband away from the first opening.

18. The wristband assembly of claim 14, wherein the clasp includes a third spike extending from the button toward the base, wherein the third spike pierces through the wristband when the button is moved to a locked position.

19. The wristband assembly of claim 18, wherein the base includes a recess configured to receive the third spike when the button is in the locked position.

20. The wristband assembly of claim 14, wherein the distortion along the width of the wristband creates a wave-like deformation of the wristband, and the distortion along the length of the wristband creates a U-shaped displacement of the wristband.