Public services department, fastener for a public services department and method for forming a department for a public service

Description

1 / 24 “PUBLIC SERVICES DEPARTMENT, FASTENER FOR A PUBLIC SERVICES DEPARTMENT AND METHOD FOR FORMING A DEPARTMENT FOR A PUBLIC SERVICE” CROSS-REFERENCE ON RELATED REQUEST

[001] This application claims the benefit of Provisional Application No. U.S. 63 / 507,249, filed June 9, 2023, the full content of which is incorporated herein by reference in its entirety. FIELD

[002] The present disclosure relates to a mechanical fastener. More specifically, the present disclosure relates to a worm gear for securing a cover. BACKGROUND

[003] Utility covers are used to enclose a volume housing utility components (e.g., water meters). Protective covers are designed to be fastened over the opening to limit tampering. Typically, fasteners, such as worm gears, are used to attach a utility cover to a protrusion around the opening to limit unwanted access.

[004] These worm gears are typically constructed from one metal and manufactured for a specific size cover or overhang. For example, the worm gear may be manufactured in a different size, based in part on the width of the overhang and the position of the worm gear when attached to the cover. On a narrower overhang and a worm gear positioned further from an edge of the cover, the outer width of the worm gear may need to be greater in order to fit the overhang.

[005] Although components made of metallic materials may have sufficient strength to prevent failure, the safety factor for securing covers Petition 870260016452, dated 23 / 02 / 2026, page 7 / 73 2 / 24 of utility vehicles with metal parts can be unnecessarily large. For example, workers may remove utility covers infrequently, and the worm gear cycle (e.g., between a locked and unlocked position) may be low. Therefore, many years may pass before the worm gear reaches enough cycles to fail.

[006] Additionally, metallic materials are expensive and can be difficult to manufacture. For example, a metal part may need to be precision machined to meet specific tolerances for the overhang or cover. SUMMARY

[007] Several examples of the present disclosure can overcome many of the disadvantages mentioned above and others associated with known worm gears, while also offering new advantages.

[008] According to one aspect of several examples of the present disclosure, a fastener is provided that is constructed from a non-metallic material.

[009] According to another aspect of several examples of the present disclosure, a fastener is provided that includes a worm gear intended to be used with a variety of flange sizes to attach a cover to the flange and enclose a volume.

[010] According to another aspect of several examples of the present disclosure, a tapered worm gear is provided for securing a utility cover over an opening, wherein the tapered shape enables the worm gear to be used on covers and openings of different sizes.

[011] According to another aspect of several examples of the present disclosure, a utility compartment is provided comprising a flange, a cover, a fastener and a latch. The flange has an opening and a protrusion disposed within the opening. The cover is selectively positioned, at least partially, within the opening and configured to contact the edge. The fastener is Petition 870260016452, dated 23 / 02 / 2026, page 8 / 73 The 3 / 24" device is configured to selectively connect the cover to the flange and includes a screw, a worm gear, and a retainer. The screw has a head and a shank extending from the head. The shank includes a connection region near a free end of the shank. The worm gear has a body that includes an upper surface, a lower surface, and an opening that extends through the body between the upper and lower surfaces. The opening is configured to receive the shank. The worm gear also includes a helical portion on an outer surface of the body that extends, at least partially, between the upper and lower surfaces. The retainer is selectively connected to the connection region and configured to retain the screw within the opening. The retainer is configured to rotate relative to the cover to move from an unlocked to a locked position.The body is tapered between the upper surface and the lower surface.

[012] According to another aspect of several examples of the present disclosure, a fastener is provided for retaining a cover on a flange and enclosing a utility meter. The fastener includes a screw, a worm gear, and a retainer. The screw is constructed from a first non-metallic material and has a head and a shank extending from the head. The shank has a non-symmetrical shape and includes a connecting region near a free end of the shank. The worm gear has a body constructed from a second non-metallic material. The body has an upper surface, a lower surface, and an opening extending through the body between the upper and lower surfaces. The opening has a non-symmetrical shape complementary to the non-symmetrical shape of the screw receiving the shank.The worm gear also includes a helical portion on an outer surface of the body that extends, at least partially, between the upper and lower surfaces. The retainer is selectively connected to the connection region and is configured to retain the screw. Petition 870260016452, dated 23 / 02 / 2026, page 9 / 73 4 / 24 inside the opening. The fastener can rotate relative to the cover to move from an unlocked to a locked position. The body is tapered between the upper and lower surfaces.

[013] According to another aspect of several examples of the present disclosure, a fastener is provided for retaining a cover on a flange and enclosing a utility meter. The fastener includes a screw, a worm gear, and a retainer. The screw is constructed from a first non-metallic material and has a head and a shank extending from the head. The shank has an asymmetrical shape and includes a connecting region near a free end of the shank. The worm gear has a body constructed from a second non-metallic material. The body has an upper surface, a lower surface, and an opening extending through the body between the upper and lower surfaces. The opening has an asymmetrical shape complementary to the asymmetrical shape of the screw receiving the shank.The worm gear also includes a helical portion on an outer body surface that extends, at least partially, between the upper and lower surfaces. The retainer is selectively connected to the connection region and is configured to retain the screw within the opening. The outer body surface is tapered between the upper and lower surfaces. The opening wall is tapered between the upper and lower surfaces.

[014] According to another aspect of several examples of the present disclosure, a method is provided for forming a compartment for a public service, wherein the method includes selecting a cover from a plurality of covers, wherein the selected cover is sized and shaped to fit within an opening of a corresponding flange; positioning a screw rod through a cover opening of the selected cover; connecting a non-metallic worm gear to the screw rod, in which the Petition 870260016452, dated 23 / 02 / 2026, p. 10 / 73 5 / 24 worm gear includes a helical portion extending from the worm gear body that is tapered and includes a greater width near the cover when connected to the screw; select a retaining device from a plurality of first retainers and a plurality of second retainers, wherein each of the plurality of first retainers is configured to be inserted through a hole in the rod and each of the plurality of second retainers is configured to be positioned in a groove in the rod; connect the selected retaining device to the screw rod to retain the worm gear along the rod; position the selected cover, at least partially, within the flange opening to enclose a volume, wherein the flange includes a protrusion to support the cover; and rotate the screw and cause the worm gear to move from an unlocked position to a locked position;wherein the tapered shape of the body allows the worm gear to interface with the protrusion in the locked position with any of the plurality of corresponding covers and flanges.

[015] According to another aspect of several examples of the present disclosure, a method of forming a compartment for a public service is presented, wherein the method includes selecting a cover from a plurality of covers, wherein the selected cover is sized and shaped to fit within an opening of a corresponding flange; positioning a screw rod through a cover opening of the selected cover; connecting a non-metallic worm gear to the screw rod, wherein the worm gear includes a helical portion extending from the body of the worm gear; selecting a retaining device from a plurality of retaining devices of different shapes; connecting the selected retaining device to a free end of the screw rod to retain the worm gear along the rod;Position the selected cover at least partially within the flange opening to enclose a volume, where; Petition 870260016452, dated 23 / 02 / 2026, p. 11 / 73 6 / 24 the flange includes a protrusion to support the cover; and turn the screw and cause the worm gear to move from an unlocked position to a locked position.

[016] The disclosure in this document should become evident to a person of ordinary skill in the art, taking into account the following description and explanatory drawings. The drawings are for illustrative purposes only and are not drawn to scale unless otherwise indicated. The drawings are not intended to limit the scope of the disclosure. The following explanatory description is directed to a person of ordinary skill in the art and presupposes that aspects within the reach of a person of ordinary skill in the art are understood and appreciated. BRIEF DESCRIPTION OF THE DRAWINGS

[017] Several advantageous aspects and features of the present disclosure will become more apparent to those with common knowledge of the art when described in the detailed description of the preferred examples and with reference to the accompanying drawing, in which

[018] Figure 1 is a perspective view of a compartment that includes a cover attached to a flange using a fastener.

[019] Figure 2 is an exploded view of the compartment in Figure 1.

[020] Figure 3 is a cross-sectional view of the compartment in Figure 1, illustrated along section 3-3.

[021] Figure 4 is a bottom view of the compartment in Figure 1 with a fastener in an unlocked position.

[022] Figure 5 is a bottom view of the compartment in Figure 1 with a fastener in a locked position.

[023] Figure 6 is a perspective view of the cover of the compartment in Figure 1. Petition 870260016452, dated 23 / 02 / 2026, page 12 / 73 7 / 24

[024] Figure 7 is a perspective view of the fastener in Figure 1.

[025] Figure 8 is a perspective view of a screw from the fastener in Figure 7.

[026] Figure 9 is a side view of the screw in Figure 8.

[027] Figure 10 is a front view of the screw Figure 8.

[028] Figure 11 is a first cross-sectional view of the bolt of Figure 8, viewed along section 11-11.

[029] Figure 12 is a second cross-sectional view of the bolt from Figure 8, viewed along section 12-12.

[030] Figure 13 is a perspective view of a worm gear of the fastener in Figure 7.

[031] Figure 14 is a top view of the worm gear in Figure 13.

[032] Figure 15 is a bottom view of the worm gear in Figure 13.

[033] Figure 16 is a first detailed view of the worm gear of Figure 13.

[034] Figure 17 is a second detailed view of the worm gear in Figure 13.

[035] Figure 18 is a first cross-sectional view of the worm gear of Figure 13, viewed along section 18-18.

[036] Figure 19 is a first cross-sectional view of the worm gear of an alternative example of the worm gear of Figure 13, viewed along section 18-18.

[037] Figure 20 is a second cross-sectional view of the worm gear of Figure 13, viewed along section 20-20.

[038] Figures 21A-21D are perspective views of several early retainers used to retain the screw of Figure 8 within the worm gear of Figure 13. Petition 870260016452, dated 23 / 02 / 2026, page 13 / 73 8 / 24

[039] Figures 22A-22F are perspective views of several second retainers used to retain the screw of Figure 8 within the worm gear of Figure 13. DETAILED DESCRIPTION

[040] As shown in Figures 1 to 5, a compartment 100 includes a cover 105 that is positioned over an opening 110 in a flange 115 to at least partially enclose a volume of the flange 115. In some configurations, the compartment 100 may be to enclose a utility meter located within the volume of the flange 115.

[041] Coverage 105 and aperture 110 may have complementary shapes to allow coverage 105 to be at least partially received within aperture 110. In the illustrated form, coverage 105 and aperture 110 may have a substantially circular shape. In other examples, coverage 105 and aperture 110 may have another shape (e.g., elliptical, rectangular, etc.).

[042] As shown in Figure 2, a protrusion 120 can be separated from the opening 110 within the flange 115. The illustrated protrusion 120 can extend completely around an inner perimeter of the flange 115, although other examples of the protrusion 120 may extend only partially around the inner perimeter of the flange 115. The protrusion 120 can extend towards a center of the opening 110.

[043] The protrusion 120 may extend only partially in the radial direction from an inner perimeter of the flange 115. For example, the center of the inside of the flange 115 may be open. The inner diameter of the protrusion 120 may be smaller than the inner diameter of the surrounding portions of the flange 115.

[044] As shown in Figure 6, the illustrated cover 105 may include a first section 125 and a second section 130. The cover 105 may have a stepped portion where the first section 125 includes a first outer width and the Petition 870260016452, dated 23 / 02 / 2026, page 14 / 73 9 / 24 second section 130 includes a second outer width smaller than the first outer width. The first outer width may be substantially the same as the inner width of flange 115 near protrusion 120.

[045] In some forms, the cover may include a flap 122 that may extend from the second section 130, as shown in Figures 3 to 5. The flap 122 may extend around a portion of the perimeter of the second section 130. Although in other examples, the flap 122 may extend completely around the perimeter of the second section 130 and / or the flap 122 may be arranged in the first section 125.

[046] As shown in Figures 2 to 5, cover 105 can be positioned so as to be aligned with opening 110. The outer diameter of cover 105 can be received within the inner diameter of opening 110. More specifically, the second outer width of the second section 130 can be received through opening 110 and can be received through an opening radially within the projection 120. The second outer width of the second section 130 can be adjacent to the inner diameter of projection 120. The example illustrated in Figure 3 shows a small gap between the second outer width and the inner diameter of projection 120, although in other examples the gap may be larger or projection 120 may be in contact with the second section 130.

[047] The greatest external width of the first section 125 can be received through the opening 110, but cannot be received through the opening radially inside the protrusion 120. In other words, the first external width can be greater than the internal diameter of the protrusion 120. The first section 125 can rest on the protrusion 120 while the second section 130 passes through the protrusion.

[048] When positioning cover 105, tab 122 can be placed first under protrusion 120, so that the first section 125 and tab 122 are on opposite sides of protrusion 120. Tab 122 can help keep cover 105 in place. Petition 870260016452, dated 23 / 02 / 2026, page 15 / 73 10 / 24

[049] As shown in Figure 3, an upper surface 135 of the first section 125 may be at least partially recessed relative to an upper edge 140 of the flange 115. In other examples, at least a portion of the upper surface 135 may be substantially aligned with the upper edge 140.

[050] Once positioned through the opening 110, the cover 105 can be secured to the flange 115 with a fastener 145 to limit unauthorized access to the interior. The fastener 145 can be a mechanical fastener used to selectively secure the cover 105 in the closed position. As illustrated in Figure 7, the fastener 145 can include a screw 150 and a worm gear 200 that are connected to each other. As described in more detail below, this can be a removable connection, although in other examples, it can be a permanent connection. In other configurations, the screw 150 and the worm gear 200 can be integrally formed.

[051] As shown in Figures 8 to 12, screw 150 may be an elongated element that includes a head 160 and a shank 165. In the example illustrated, the head 160 may have five sides (e.g., a substantially pentagonal shape), although in other examples, the head 160 may have any number of sides (e.g., three, four, six, etc.). In some models, the shape of the head 160 may be non-standard in order to limit unauthorized access.

[052] The rod 165 may be an elongated rod extending away from the head 160. The rod 165 may have at least a partially cylindrical shape. In the example illustrated, the rod 165 may include a first portion 170 and a second portion 175. The first portion 170 is disposed adjacent to the head 160 and the second portion 175 is disposed adjacent to the first portion 170 and distal to the head 160. The first portion 170 may be substantially cylindrical and the second portion 175 may include a notch 180. Petition 870260016452, dated 23 / 02 / 2026, p. 16 / 73 11 / 24

[053] As illustrated in Figures 9 and 10, the 180 cutout has a substantially rectangular shape, although the 180 cutout may have any other shape (e.g., elliptical, etc.). The 180 cutout may extend substantially throughout the length of the second portion 175.

[054] As shown in Figure 10, the 180 cutout may extend only partially across the width of the second 175 portion. For example, some instances of the second 175 portion may include a 180 cutout that extends less than three-quarters of the way across the second 175 portion. In other instances, the 180 cutout may extend less than halfway across the second 175 portion. In other instances, the cutout may extend about a quarter of the way across the second 175 portion.

[055] In other examples, the width of the 180 cutout may be substantially equivalent to the outer width of the second 175 portion. The width of the 180 cutout may be related to the extent of the 180 cutout in the second 175 portion.

[056] As shown in Figures 8 to 10, the second portion 175 may additionally include a groove 185. The groove 185 is formed in the wall of the second portion 175 and extends toward a center of the second portion 175. In some forms, the groove 185 may extend substantially around the perimeter of the second portion 175. For example, the groove 185 may extend from one side of the cutout 180 to the other side of the cutout 180 along the curved region of the second portion 175.

[057] As shown in Figure 12, groove 185 may extend at least partially toward a center of the second portion 175. For example, the illustrated groove 185 may extend less than halfway through the width of the second portion 175. In some forms, groove 185 may extend about a quarter of the way through the second portion 175. Petition 870260016452, dated 23 / 02 / 2026, page 17 / 73 12 / 24

[058] The 185 groove may include a substantially rectangular shape in cross-section. For example, the interior of the 185 groove may be angled and include walls that are substantially perpendicular to any adjacent walls. In other examples, the walls forming the 185 groove may be at least partially curved (e.g., curved along virtually the entire length, rounded at the corners between adjacent walls, etc.) and / or may be formed at an angle other than 90° relative to the adjacent walls.

[059] As shown in Figures 8 and 10, the second portion 175 may also include a hole 190. The illustrated hole 190 may be oriented substantially perpendicular to the wall of the groove 185 (although the hole 190 may include any other orientation). The hole 190 may also include a substantially circular perimeter, although a perimeter of any other shape (e.g., elliptical, rectangular, etc.) may also be used. The hole 190 may extend completely through the second portion 175. The hole 190 may be a through hole that completely traverses the second portion 175 or it may be a blind hole that extends only partially through the second portion 175.

[060] As shown in Figure 10, hole 190 can be disposed substantially in the middle of a wall of the second portion 175 that forms the cutout 180. For example, a center of hole 190 can intersect a plane that intersects a center of the second portion 175 and a center of the first portion 170. Hole 190 can therefore be disposed at a substantially equal distance from each end of the groove 185. In other examples, the center of hole 190 may be separated from the plane, and the plane may intersect a portion of hole 190 or may not intersect the hole at all. In either alternative case, hole 190 may be closer to one end of the groove 185 than to the other.

[061] Hole 190 can be positioned substantially in the same plane as slot 185. The plane can be substantially perpendicular to the second portion. Petition 870260016452, dated 23 / 02 / 2026, page 18 / 73 13 / 24 175 and does not cross the first portion 170. In other examples, hole 190 may be arranged in a different plane from groove 185.

[062] At least a portion of screw 150 can be constructed from a single material. As shown in Figures 11 and 12, rod 165 can be formed entirely from a single material. The rod can be constructed from a non-metallic material, for example, molded nylon, although other materials (e.g., plastic, metal, etc.) can also be used. Additionally, other examples of rod 165 can be constructed from a combination of materials (e.g., an inner material and an outer material).

[063] The 160 head of the 150 screw can be similarly constructed from a single material. In some instances, this material may be the same material as the 165 shank. The 160 head and the 165 shank may be formed integrally during a manufacturing process (e.g., molding). In other instances, the 160 head may be constructed from one or more materials different from the 165 shank.

[064] As shown in Figures 13 to 20, fastener 145 may additionally include a worm gear 200 which assists in connecting the cover 110 to the flange 115. As described in more detail below, the screw 150 and the worm gear 200 may be connected together to form fastener 145.

[065] As shown in Figure 13, the worm gear 200 may include a body 205. The body 205 may include an upper surface 210, a lower surface 215 (see, for example, Figure 15) and at least one side surface. The illustrated worm gear 200 includes a first side surface 220 and a second side surface 225, although the body 205 may include any number of side surfaces (e.g., three, four, five, six, etc.).

[066] In some forms, the first lateral surface 220 may be substantially flat and may extend between the upper surface 210 and the Petition 870260016452, dated 23 / 02 / 2026, page 19 / 73 14 / 24 bottom surface 215. The top and bottom surfaces 210, 215 may also be flat surfaces, although one or more of the top and bottom surfaces 210, 215 may not be flat.

[067] In certain forms, the first lateral surface 220 may be substantially perpendicular to the upper surface 210 and / or the lower surface 215. However, in other examples, the first lateral surface 220 may be oblique to the upper surface 210 and the lower surface 215.

[068] With continued reference to Figure 13, the second lateral surface 225 may be a curved surface extending between the edges of the first lateral surface 220. The second lateral surface 225 may have a constant radius of curvature, although other examples may have a variable radius of curvature. As shown in Figures 13 to 15, the upper and lower surfaces 210, 215 may be substantially D-shaped due to the first flat lateral surface 220 and the second curved lateral surface 225.

[069] An opening 230 may extend through the body 205 between the upper surface 210 and the lower surface 215. The illustrated opening 230 may be a through hole extending throughout the body 205. The opening 230 may extend in a direction that is substantially perpendicular to the upper surface 210 and the lower surface 215. In other examples, the opening 230 may be oblique with respect to at least one of the upper surface 210 and the lower surface 215.

[070] In some forms, the opening 230 may have substantially the same shape as the upper surface 210 and / or the lower surface 215. For example, the opening for the opening 230 may have a substantially D shape. In other examples, the opening 230 may have any other shape (e.g., circular, elliptical, triangular, rectangular, pentagonal, etc.).

[071] As shown in Figure 18, the opening 230 may include an inner wall 235 that is tapered between the upper surface 210 and the surface Petition 870260016452, dated 23 / 02 / 2026, page 20 / 73 15 / 24 lower 215. The illustrated opening 230 includes a greater width near the upper surface 210, although other examples may include a greater width near the lower surface 215. The tapering between the upper surface 210 and the lower surface 215 is illustrated as being a constant tapering (for example, the inner wall 235 includes a constant slope between the upper surface 210 and the lower surface 215, as seen in cross-section), although other examples may include variable tapering.

[072] Some forms may also include a taper between the upper surface 210 and the lower surface 215 of the outer body surface 205. As illustrated in Figure 18, the taper on the outer surface may be oriented at the same angle as the taper on the inner wall 235, although there may be different tapers. The taper between the upper surface 210 and the lower surface 215 may extend so that the upper surface 210 is wider than the lower surface 215. When assembled, the narrower lower surface 215 may be closer to the edge 120 than the upper surface 210.

[073] As shown in Figure 19, other examples of the opening 230 may include an inner wall 235 that is substantially perpendicular to the upper surface 210 and the lower surface 215. In other words, the inner wall 235 may not include a taper. The body 205 (e.g., the outer wall) of the worm gear 200 may still be tapered between the upper and lower surfaces 210, 215.

[074] Other examples of body 205 do not include a tapering in an outer wall between the upper surface 210 and the lower surface 215. The absence of a tapering in the outer wall of body 205 may be independent of the presence or absence of a tapering in the inner wall 235.

[075] As shown in Figures 13 to 17, a helical portion 240 can be connected to the body 205. Specifically, the helical portion 240 can be Petition 870260016452, dated 23 / 02 / 2026, page 21 / 73 16 / 24 extending from the second lateral surface 225. The helical portion 240 may extend along the body 205 substantially between the upper surface 210 and the lower surface 215. As illustrated in Figures 13 and 14, one end of the helical portion 240 may be substantially flush with the upper surface 210. In other examples, one end of the helical portion 240 may be separated (e.g., above or below) from the upper surface 210.

[076] As illustrated in Figure 15, the opposite end of the helical portion 240 can be separated from the lower surface 215 so that it is not flush. However, other instances of the helical portion 240 may be aligned with the lower surface 215 or may extend beyond the lower surface 215 (for example, in a direction opposite to the upper surface 210).

[077] With continued reference to Figures 13 to 15, the helical portion 240 can extend only around a portion of the body 205. For example, the helical portion 240 can extend only around a portion of the second lateral surface 225. In the illustrated example, the ends of the helical portion 240 can be separated from the first lateral surface 220. In some forms, the helical portion 240 can extend around the body 205 between about 1 degree and about 359 degrees.

[078] In some forms, the helical portion 240 may extend around the body 205 between about 10 degrees and about 300 degrees. In some forms, the helical portion 240 may extend around the body 205 between about 45 degrees and about 270 degrees. In some forms, the helical portion 240 may extend around the body 205 between about 90 degrees and about 225 degrees. In some forms, the helical portion 240 may extend around the body 205 by about 180 degrees.

[079] The helical portion 240 may have an upper surface 245 and a lower surface 250 that is separated from the upper surface 245. In the example Petition 870260016452, dated 23 / 02 / 2026, p. 22 / 73 17 / 24 illustrated in Figures 12 and 19, at least one of the upper surface 245 and the lower surface 250 may be inclined relative to the other surface. For example, the distance between the upper surface 245 and the lower surface 250 may change. In some forms, the distance between the upper surface 245 and the lower surface 250 is greater near the second lateral surface 225 than at a free end distal to the second lateral surface 225.

[080] In some forms, the upper surface 245 is inclined relative to the lower surface 250. For example, the lower surface 250 may be substantially parallel or coplanar to the lower surface 215 and the upper surface 245 may be inclined relative to the lower surface 215. However, in other forms, the lower surface 250 may be inclined instead of, or in addition to, the upper surface 245.

[081] In some forms, the width of the helical portion 240 may change along its length. For example, Figure 18 shows the helical portion 240 with a greater width near the upper surface 210 than at the lower surface 215. This change in width may be a constant change or it may be a variable change in width.

[082] Returning to Figures 13 to 15, the opening 230 can be oriented in relation to the helical portion 240 so that the curved portion of the substantial D-shape is close to the helical portion 240. For example, a flat portion of the inner wall 235 can be placed close to the first lateral surface 220, where the helical portion 240 does not extend transversely.

[083] As shown in Figure 7, the fastener 145 can be assembled by connecting the screw 150 and the worm gear 200. The second portion 175 includes a cutout 180 so that the second portion 175 is substantially D-shaped when viewed in cross-section (see, for example, Figure 12). The Petition 870260016452, dated 23 / 02 / 2026, page 23 / 73 The 18 / 24 D-format of the second portion 175 may be substantially the same as the D-format of opening 230.

[084] When assembling fastener 145, screw 150 can be oriented with the second portion 175 close to the opening 230 on the upper surface 210. The D-shaped opening 230 can allow screw 150 to be inserted in a single orientation (for example, because the opening 230 and the second portion 175 are not symmetrical). Screw 150 can be inserted through the opening 230 until the first portion 170 contacts the upper surface 210. For example, the width of the first portion 170 can be greater than the width of the opening 230. The first portion 170 can therefore remain outside the opening 230 when fully assembled.

[085] In some forms, the length of the second portion 175 of the screw 150 may be greater than the length of the opening 230. The second portion 175 may extend beyond the opening 230, so that a portion of the screw 150 is exposed outside the opening 230, close to the upper surface 210 and close to the lower surface 215.

[086] As shown in Figure 7, slot 185 and / or hole 190 may be included in the region of the second exposed portion 175. In other words, slot 185 and / or hole 190 are not received in the opening 230 when the fastener 145 is fully assembled.

[087] In some forms, screw 150 can be press-fitted or friction-fitted into opening 230 when assembled. For example, the width of the second portion 175 can be slightly larger than the width of opening 230, so that screw 150 is held in place when fully assembled.

[088] In some forms, a retainer 255 can be used to secure screw 150 within opening 230. The retainer 255 can be used regardless of whether screw 150 is press-fitted or press-fitted. Petition 870260016452, dated 23 / 02 / 2026, page 24 / 73 19 / 24 friction within the opening 230. For example, the retainer 255 can limit the transition movement of the screw 150 along a geometric insertion axis through the opening 230.

[089] As shown in Figures 21A to 21D, one form of retainer 255 may be a pin (e.g., a keyway pin) that is selectively positioned through hole 190. As described above, screw 150 may be inserted through opening 230 so that at least part of the second portion 175 passes entirely through opening 230. This portion includes hole 190, so that a geometric axis of insertion through hole 190 does not cross the worm gear 200 when screw 150 is fully inserted into opening 230 (e.g., where the first portion 170 contacts the upper surface 210). Hole 190 is therefore exposed so that retainer 255 may be positioned through hole 190 and screw 150 retained within opening 230.

[090] A variety of different pin-style retainers can be used to retain screw 150. Any of these retainers 255 can function substantially the same as any of the other pins described in Figures 21A to 21D to selectively retain screw 150 within opening 230. For example, retainer 255 may include a keyway pin, a snap pin, a spring pin, a retaining pin, or any other similar pin. Additionally, the fastener 255 may be a clothespin or a similar household item that is readily available.

[091] As shown in Figures 22A to 22F, the retainers can also take the form of various types of washers. Unlike pins that can be inserted through hole 190, washer-type retainers 260 can be positioned within groove 185. Similar to hole 190, groove 185 can be positioned in the section of the second portion 175 that extends beyond opening 230, so that groove 185 remains exposed. Washer-type retainers 260 can Petition 870260016452, dated 23 / 02 / 2026, page 25 / 73 20 / 24 can be fitted into groove 185 (for example, by sliding them over one end of screw 150 after screw 150 has been inserted through opening 230). Washer-type retainers 260 can similarly retain screw 150 against translational movements within opening 230 along the geometric axis of insertion.

[092] In some forms, retainer 255 and washer-type retainer 260 can be used together to retain screw 150 within opening 230. In other examples, the user can select retainer 255 or washer-type retainer 260 (or neither) to retain screw 150.

[093] In some forms, the 255 retainers and / or the 260 washer-type retainers may not be custom-machined parts. Instead, the 255 retainers and / or the 260 washer-type retainers may be common components (for example, Figure 21D illustrates a safety pin). This may allow for easy replacement if the 255 retainers and / or the 260 washer-type retainers break.

[094] Returning to Figures 1 to 5, fastener 145 can be coupled to cover 105. And it can be used to connect cover 105 to flange 115. For example, the illustrated cover 105 may include an opening 270 that extends through cover 105 (e.g., a through hole). The opening 270 can be sized to receive bolt 150. For example, the opening 270 may include a width that substantially corresponds to the width of the first portion 170 to allow passage of rod 165. When assembled, the head 160 can be positioned on one side of cover 105 and the second portion 175 and worm gear 200 can be arranged on the opposite side of cover 105.

[095] In some forms, screw 150 can be inserted through opening 270 before being connected to the worm gear 200. For example, screw 150 can be positioned through opening 270 until the head 160 contacts the cover surface 105 (for example, thus preventing Petition 870260016452, dated 23 / 02 / 2026, page 26 / 73 21 / 24 any additional translational movement in that direction). The worm gear 200 and the retainer 255, 260 can then be connected to the screw 150 on the other side of the cover 105 to retain the fastener 145 in relation to the cover 105.

[096] In the connected position, fastener 145 can rotate relative to cover 105, but cannot be translated relative to cover 105. For example, the first portion 170 and the opening 270 can be circular to allow screw 150 to rotate within the opening 270.

[097] In some forms, screw 150 and worm gear 200 may rotate together relative to cover 105. For example, opening 230 and second portion 175 may have non-symmetrical shapes and limit relative movement when connected to each other.

[098] The worker can position the cover 105 inside the opening 110 of the flange 115. Once the first section 125 is supported on the protrusion 120, the worker can use a tool to rotate the fastener 145 relative to the cover 105. Specifically, the worker can apply torque to the head 160 of the bolt 150 to rotate the bolt 150 relative to the cover 105. As described above, the asymmetrical shape of the bolt 150 and the worm gear 200 allows the worm gear 200 to rotate together with the bolt 150. The rotation of the worm gear 200 causes the helical portion 240 to rotate relative to the flange 115.

[099] For example, fastener 145 can initially be positioned so that the helical portion 240 does not interfere with the protrusion 120 (see, for example, Figure 4). This allows the cover 105 to be positioned in the opening 110 without significant interference. To connect the cover 105 to the flange 115, the worker rotates fastener 145 so that the helical portion 240 engages with the flange 115. As illustrated in Figure 5, fastener 145 rotates so that the helical portion 240 engages a lower surface of the protrusion 120 (e.g., opposite the surface). Petition 870260016452, dated 23 / 02 / 2026, page 27 / 73 22 / 24 that the first section 125 contacts). The continuous rotation of the fastener 145 causes the helical portion 240 closest to the upper surface 210 to contact the protrusion 120 and pull the cover 105 into closer contact with the protrusion 120, so that the cover 105 is firmly fitted to the flange 115. For example, the first portion 125 and the tab 122 are pulled into closer contact with the flange 115 to more firmly compress the protrusion 120. In this position, the first portion 125 and the helical portion 240 limit the translation of the cover 105 relative to the flange 115.

[0100] This fastener 145 may offer advantages over fasteners currently used to secure covers. For example, the use of a non-metallic material (e.g., nylon, polypropylene, etc.) to manufacture at least part of fastener 145 may reduce manufacturing costs. For example, non-metallic materials may be cheaper than metals and / or may require less machining to meet specified tolerances.

[0101] The forces required for fastener 145 to retain cover 105 can be achieved with non-metallic materials. Additionally, workers can occasionally inspect the underground installations covered by cover 105. In other words, workers do not tighten and loosen fastener 145 frequently. Even though a non-metallic fastener 145 has a lower number of cycles to failure, the low frequency of cycles and the relatively low cost to replace fastener 145 may still allow the use of non-metallic materials.

[0102] In other examples, metallic materials (e.g., steel, brass, etc.) may, however, be used in the manufacture of at least a portion of the fastener 145.

[0103] The shape of fastener 145 can also assist in connecting fastener 145 to cover 105. For example, the outer portion of gear body 205. Petition 870260016452, dated 23 / 02 / 2026, p. 28 / 73 The 23 / 24 worm gear 200 can be tapered between the upper surface 210 and the lower surface 215. The tapered shape of the body 205 allows the worm gear 200 to fit and be used with a variety of different covers 105 and / or flanges 115. For example, the protrusion 120 on the flange 115 can have different sizes depending on the specific manufacturer and / or the different manufacturing tolerances used. The tapered shape of the outer portion of the body 205 allows the worm gear 200 to act as a universal connector and be used with a variety of flanges of different shapes and sizes 115.

[0104] A tapered shape on the inner wall 235 of the worm gear may allow screws 150 of different sizes to be used with the worm gear 200. For example, the tapered shape may accommodate screws 150 with different manufacturing tolerances or produced by similar manufacturers. The tapered shape of the inner wall 235 may likewise allow the worm gear 200 to act as a universal connector.

[0105] The limited number of components also provides ease of use for workers. For example, the revealed fastener 145 includes only three elements (e.g., screw 155, worm gear 200, and retainer 255). These elements can be assembled quickly (e.g., in a few seconds) without the need for additional tools. Additionally, the interconnectivity between components of different sizes or shapes allows a worker to quickly replace a broken component in the field without needing to purchase a custom-made part. As described above, various components can be used to form retainer 255, including common components not manufactured for this specific application. Workers may therefore be able to use components that are readily available to form retainer 255. Petition 870260016452, dated 23 / 02 / 2026, page 29 / 73 24 / 24

[0106] A person of ordinary knowledge in the art will appreciate that exact dimensions and materials are not essential to the disclosure and that all suitable variations should be considered within the scope of the disclosure, so long as they are deemed appropriate to accomplish the objectives of the disclosure.

[0107] A person of ordinary skill in the art will also readily appreciate that it is perfectly within the capabilities of a person of ordinary skill in the art to modify one or more of the constituent parts to perform the various examples of the disclosure. Once equipped with this descriptive report, routine experimentation is all that is necessary to determine the adjustments and modifications that will enable the implementation of the present disclosure.

[0108] The above examples are for illustrative purposes and are not intended to limit the scope of the disclosure or the adaptation of the features described. Those skilled in the art will also appreciate that various adaptations and modifications of the preferred examples described above can be configured without departing from the scope and spirit of the disclosure. Therefore, it should be understood that, within the scope of the appended claims, the disclosure may be practiced in a manner different from that specifically described. Petition 870260016452, dated 23 / 02 / 2026, page 30 / 73

Claims

1 / 5 CLAIMS 1. Utility compartment CHARACTERIZED in that it comprises: a flange having an opening and a protrusion disposed within the opening; a cover selectively positioned at least partially within the opening and configured to contact the protrusion; a fastener configured to selectively connect the cover to the flange, wherein the fastener includes: a screw having a head and a shank extending from the head, wherein the shank includes a connection region near a free end of the shank; a worm gear having a body comprising an upper surface and a lower surface; an opening extending through the body between the upper surface and the lower surface, wherein the opening is configured to receive the shank; a helical portion on an outer surface of the body extending at least partially between the upper surface and the lower surface;and a retainer selectively connected to the connection region and configured to retain the screw within the opening, wherein the fastener is configured to rotate relative to the cover to move from an unlocked position to a locked position; and wherein the body is tapered between the upper surface and the lower surface.

2. Utility compartment, according to claim 1, CHARACTERIZED in that at least a portion of the fastener is constructed from a non-metallic material.

3. Utility compartment, according to claim 1, CHARACTERIZED in that the connection region includes a hole that extends through the rod, and in that the retainer is a pin that can be selectively positioned within the hole when the screw is received within the opening.

4. Utility compartment, according to claim 1, CHARACTERIZED in that the connection region includes a groove that extends at least partially around the rod, and in that the retainer is a washer that can be selectively positioned within the groove when the screw is received within the opening.

5. Utility compartment, according to claim 1, CHARACTERIZED in that the rod and the opening each include an asymmetrical shape configured to fit into each other to limit relative rotation between the screw and the worm gear.

6. Utility compartment, according to claim 1, CHARACTERIZED in that the helical portion is flush with the upper surface and is separated from the lower surface.

7. Fastener for a utility compartment CHARACTERIZED by the fact that it comprises: a screw constructed from a first non-metallic material and having a head and a shank extending from the head, wherein the shank has a non-symmetrical shape and includes a connection region near a free end of the shank, a worm gear having a body constructed from a second non-metallic material, wherein the body includes an upper surface and a lower surface, an opening extending through the body between the upper surface and the lower surface, wherein the opening having a non-symmetrical shape complementary to the non-symmetrical shape of the screw is configured to receive the shank, Petition 870260017538, dated 25 / 02 / 2026, p.54 / 65 3 / 5 a helical portion on an outer surface of the body extending at least partially between the upper surface and the lower surface, and a retainer selectively connected to the connection region and configured to retain the screw within the opening, wherein the fastener is configured to rotate with the worm gear, and wherein the body is tapered between the upper surface and the lower surface.

8. Fastener, according to claim 7, CHARACTERIZED in that the body narrows from the upper surface to the body surface, and in that the head is configured to be disposed close to the upper part.

9. Fastener, according to claim 7, CHARACTERIZED in that the connection region includes a hole extending through the rod, and in that the retainer is a pin that can be selectively positioned within the hole when the screw is received within the opening.

10. Fastener, according to claim 7, CHARACTERIZED in that the connection region includes a groove that extends at least partially around the rod, and in that the retainer is a washer that can be selectively positioned within the groove when the screw is received within the opening.

11. Fastener, according to claim 7, CHARACTERIZED in that the first non-metallic material is different from the second non-metallic material.

12. Fastener, according to claim 7, CHARACTERIZED in that the helical portion is flush with the upper surface and is separated from the lower surface.

13. Fastener, according to claim 7, CHARACTERIZED in that the width of the helical portion changes from the first end to the second end.

14. Method of forming a compartment for a public service, wherein the method is CHARACTERIZED by the fact that it comprises: Petition 870260017538, dated 25 / 02 / 2026, page 55 / 65 4 / 5 selecting a cover from a plurality of covers, wherein the selected cover is sized and shaped to fit within an opening of a corresponding flange; positioning a screw rod through a cover opening of the selected cover; connecting a non-metallic worm gear to the screw rod, wherein the worm gear includes a helical portion extending from the body of the worm gear, and the body of the worm gear being tapered and including a greater width near the cover when connected to the screw;Select a retaining device from a plurality of first retainers and a plurality of second retainers, each of the plurality of first retainers configured to be inserted through a hole in the rod and each of the plurality of second retainers configured to be positioned in a groove in the rod; connect the selected retaining device to the screw rod to retain the worm gear along the rod; position the selected cover at least partially within the flange opening to enclose a volume, wherein the flange includes a protrusion to support the cover; and rotate the screw and cause the worm gear to move from an unlocked position to a locked position; wherein the tapered shape of the body allows the worm gear to interface with the protrusion in the locked position with any of the plurality of corresponding covers and flanges.

15. Method, according to claim 14, CHARACTERIZED in that the rod includes an asymmetrical shape and in which connecting the worm gear to the screw additionally includes aligning the rod with an opening through the worm gear body that includes a complementary asymmetrical shape.

16. Method according to claim 14, CHARACTERIZED in that rotating the screw by a first angular distance causes the worm gear to rotate by the first angular distance.

17. Method according to claim 14, CHARACTERIZED in that it further comprises selecting the retention device from both a plurality of first retainers and a plurality of second retainers.

18. Method according to claim 14, CHARACTERIZED in that it further comprises replacing the selected retention device with any one of a plurality of first retainers and a plurality of second retainers not previously selected.

19. Method according to claim 14, CHARACTERIZED in that the worm gear is constructed from polypropylene.

20. Method according to claim 14, CHARACTERIZED in that the helical portion includes a greater width measured from the body near the cover when connected to the screw. Petition 870260017538, dated 25 / 02 / 2026, pp. 57 / 65

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