Shaving apparatus

Abstract

The present invention relates to a shaving device for shaving a surface, comprising: a handle comprising an elongate body having a proximal end and a distal end; and a shaving head reversibly connected to the distal end of the handle. The shaving head comprises: a blade holder comprising a bottom side for connecting at least two blades; at least two blades, each blade comprising at least one sharp end; and two wheels, each wheel being located adjacent to at least one sharp end of each of the at least two blades. Wherein the underside of the blade holder comprises an angle such that each of the at least two blades is positioned at an angle of between about 1 degree and about 10 degrees with respect to the surface to be shaved.

Description

[0001] Related Applications

[0002] This application claims the benefit of priority of U.S. Provisional Patent Application No. 63 / 427,119, filed on November 22, 2022, the entire content of which is incorporated herein by reference.

[0003] Technical Field and Background Art

[0004] In some of its embodiments, the present invention relates to a shaving device, and more particularly but not exclusively to a shaving device for the body.

[0005] Other background art includes U.S. Patent Publication No. 20180111280A1, which discloses a shaver having a handle and a shaver head extending from an end of the handle. The shaver head includes: a head housing having a base and a shelf defining a space therebetween; a roller partially positioned within the space and having a corrugated arrangement of parallel ridges defining channels between adjacent ridges; a plurality of blades fixed to the shelf, wherein the blades partially cover the roller to expose portions of the roller adjacent to the plurality of blades; and a blade cover fixed above the plurality of blades.

[0006] U.S. Patent No. US10513041B2 discloses a shaving device having a body including a central lumen, and one or more rolling elements rotatably attached to a bottom surface of the shaving device. The device includes a shaving head assembly rotatably attached within the central lumen. The shaving head assembly includes one or more shaving blades and a blade carrier attachment arm for attaching a blade carrier to a mounting shaft having a support surface. The shaving head assembly or a sub-unit thereof rotates about a rotational axis defined by the long axis of the mounting shaft. One or more engagement elements removably hold the shaving head assembly within the central lumen and provide a mechanical release mechanism including an actuator to remove the shaving head assembly.

[0007] U.S. Patent No. US7086160B2 discloses a razor cartridge, the platform portion having a first cartridge segment including at least a pair of first razor blades positioned therein. Each razor blade of the at least a pair of first razor blades has at least a partially exposed cutting edge. A second cartridge segment is also provided and is coupled to the platform portion. The second cartridge segment includes at least a pair of second razor blades positioned therein, and each razor blade of the at least a pair of second razor blades also has at least a partially exposed cutting edge. The razor cartridge may be temporarily or permanently mounted to a handle, and the cutting edges of each pair of the at least a pair of first razor blades and the at least a pair of second razor blades face each other such that during a shaving operation, when pulled in either of two generally opposite directions across a user's skin, the razor cartridge can cut hair.

[0008] U.S. Patent No. US7140115B2 discloses a shaver that is particularly suitable for shaving a user's head, but can also be used to shave any part of the body. More specifically, the shaver according to the present invention has one or more of the following elements: a wheel or other rolling device on the same side of the shaver as the razor blade or other shaving component, an adjustable finger hook for accommodating fingers of different sizes, and an attachment bracket for supporting the razor blade or other shaving component when the shaver is placed down. Summary of the Invention

[0009] The following is a non-exclusive list including some examples of embodiments of the present invention. The present invention also includes embodiments that include fewer than all the features in the examples and embodiments that use features from multiple examples, even if not explicitly listed below.

[0010] Example 1. A shaving device for shaving a surface, comprising:

[0011] a. A handle including an elongated body having a proximal end and a distal end; and

[0012] b. A shaving head pivotally connected to the distal end of the handle, the shaving head including:

[0013] i. A blade holder including a bottom side for connecting at least two blades;

[0014] ii. At least two blades, each blade including at least one sharp end;

[0015] iii. Two wheels, each wheel located near at least one sharp end of each of the at least two blades;

[0016] Wherein the bottom side of the blade holder includes an angle such that each of the at least two blades is positioned at an angle between about 1 degree and about 10 degrees relative to the surface to be shaved.

[0017] Example 2. The shaving device according to Example 1, wherein the angle is 5 degrees.

[0018] Example 3. The shaving device according to Example 1 or Example 2, wherein the shaving head includes one blade having two sharp ends.

[0019] Example 4. The shaving device according to any one of Examples 1 to 3, wherein the two wheels include a plurality of small wheels spaced apart by a plurality of spaces.

[0020] Example 5. The shaving device according to Example 4, wherein the width of each of the plurality of small wheels is about 0.2 mm to about 0.6 mm.

[0021] Example 6. The shaving device according to Example 4, wherein the width of each of the plurality of caster wheels is 0.6 mm.

[0022] Example 7. The shaving device according to Example 4, wherein each of the plurality of spaces is from about 1 mm to about 4 mm.

[0023] Example 8. The shaving device according to any one of Examples 1 to 7, wherein the shaving head is configured to be tilted along a longitudinal axis of the shaving head, the longitudinal axis intersecting the location where the handle is connected to the shaving head.

[0024] Example 9. The shaving device according to Example 8, wherein the angle of tilt is from about ±1° to about ±90°.

[0025] Example 10. The shaving device according to Example 8, wherein the shaving head rotates freely along the longitudinal axis.

[0026] Example 11. The shaving device according to any one of Examples 1 to 10, wherein the handle includes a double-arm structure configured to interlock with the sides of the shaving head for performing a reversible connection.

[0027] Example 12. The shaving device according to Example 11, wherein the double-arm structure is adjustable.

[0028] Example 13. The shaving device according to any one of Examples 1 to 12, wherein the blade holder further includes a base, wherein the bottom side is the bottom side of the base, and further includes a rib extending vertically from the center of the base.

[0029] Example 14. The shaving device according to any one of Examples 1 to 13, wherein the two wheels are configured to rotate freely.

[0030] Example 15. The shaving device according to any one of Examples 1 to 14, wherein the diameter of each of the two wheels is from about 1 mm to about 20 mm.

[0031] Example 16. The shaving device according to any one of Examples 1 to 15, wherein the diameter of each of the two wheels is 5 mm.

[0032] Example 17. The shaving device according to any one of Examples 1 to 16, wherein the shaving device further includes two cap holders configured to provide support to components of the shaving head.

[0033] Example 18. The shaving device according to Example 17, wherein each of the two cap holders includes a plurality of openings configured to engage components of the shaving head.

[0034] Example 19. A shaving device according to any one of Examples 1 to 18, wherein the width of the shaving head is from about 10 mm to about 100 mm.

[0035] Example 20. A shaving device according to any one of Examples 1 to 19, wherein the width of the shaving head is 23 mm.

[0036] Example 21. A shaving device according to any one of Examples 1 to 20, wherein the width of the shaving head is 46.2 mm.

[0037] Example 22. A shaving device according to any one of Examples 1 to 21, wherein the depth of the shaving head is from about 3 mm to about 50 mm.

[0038] Example 23. A shaving device according to any one of Examples 1 to 22, wherein the depth of the shaving head is 12 mm.

[0039] Example 24. A shaving device according to any one of Examples 1 to 23, wherein the height of the shaving head is from about 1 mm to about 20 mm.

[0040] Example 25. A shaving device according to any one of Examples 1 to 24, wherein the height of the shaving head is 6.77 mm.

[0041] Example 26. A shaving device according to any one of Examples 1 to 25, wherein the handle includes one or more ergonomic elements.

[0042] Example 27. A shaving device according to any one of Examples 1 to 26, further comprising a protective cap configured to cover at least two blades.

[0043] Example 28. A shaving device according to any one of Examples 1 to 27, wherein some of the at least two blades face one direction and some of the other at least two blades face the opposite direction.

[0044] Example 29. A shaving device according to any one of Examples 1 to 28, wherein all of the at least two blades face the same direction.

[0045] Example 30. A shaving device according to any one of Examples 1 to 29, wherein at least one of the two wheels includes a lubricant sheet that covers at least one wheel and is configured to rotate and release lubricant material when the shaving device is in use.

[0046] Example 31. A kit for shaving, comprising:

[0047] a. An adjustable handle according to Example 1; and

[0048] b. Multiple shaving heads according to Embodiment 1;

[0049] Wherein the multiple heads include different sizes.

[0050] Embodiment 32. A shaving kit according to Embodiment 31, wherein the length of each shaving head among the multiple shaving heads is 5 mm, 10 mm, 20 mm, 23 mm, 45 mm, 46.2 mm, 50 mm, 75 mm, and 100 mm respectively.

[0051] Unless otherwise defined, all technical and / or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although methods and materials similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, exemplary methods and / or materials are described below. In case of conflict, the present patent specification (including definitions) shall prevail. Additionally, the materials, methods, and examples are merely illustrative and not intended to be limiting necessarily. Description of the Drawings

[0052] Some embodiments of the present invention are described herein by way of example only with reference to the drawings. Now referring specifically and in detail to the drawings, it should be emphasized that the details shown are by way of example and for the purpose of an illustrative discussion of embodiments of the present invention. In this regard, the description in conjunction with the drawings makes it apparent to those skilled in the art the manner in which embodiments of the present invention can be practiced.

[0053] In the drawings:

[0054] Figure 1A 、 Figure 1B and Figure 1C are 2D and 3D schematic views of a shaving device according to some embodiments of the present invention;

[0055] Figure 2A 、 Figure 2B and Figure 2C are schematic views of exemplary shaving heads according to some embodiments of the present invention;

[0056] Figure 2D is a schematic view of an exploded view of an exemplary shaving head according to some embodiments of the present invention;

[0057] Figure 3 is a schematic view of an exemplary wheel according to some embodiments of the present invention;

[0058] Figure 4 is a schematic view of an exemplary cap holder according to some embodiments of the present invention;

[0059] Figure 5A 、Figure 5B and Figure 5C is a schematic view of a blade holder according to some embodiments of the present invention;

[0060] Figure 6 is a schematic view of a comparison between the angles used in prior art blades and the angles used in the blades of the present invention according to some embodiments of the present invention;

[0061] Figure 7A and Figure 7B are respectively schematic views of a bottom view of a shaving device and a side cross-sectional view of a shaving device according to some embodiments of the present invention;

[0062] Figures 8A through 8H is a schematic view of an exemplary shaving device including three or more blades according to some embodiments of the present invention;

[0063] Figures 9A through 9C shows a schematic view of an exemplary shaving device including a lubricant wheel according to some embodiments of the present invention. DETAILED DESCRIPTION

[0064] In some of its embodiments, the present invention relates to a shaving device, and more particularly but not exclusively to a shaving device for the body, which can be easily placed on the body surface.

[0065] Overview

[0066] One aspect of some embodiments of the present invention relates to a device for shaving a body surface. In some embodiments, the device is configured to shave hair from the body surface when actuated in more than one direction. In some embodiments, the device is a two-way device that is configured to remove hair when actuated back and forth. In some embodiments, the device includes at least one blade (which includes two sharp edges) or two blades (each blade includes a single sharp end). In some embodiments, the blade is positioned at an angle that is nearly parallel but not completely parallel to the surface to be shaved. In some embodiments, the blade is positioned at an angle of about 5 degrees to about 10 degrees (preferably at an angle of 5 degrees) with respect to the surface to be shaved. The potential advantage of setting the blade at an angle of about 5 degrees is that this potentially allows for safe shaving of non-taut surfaces, such as the skin on the body, which is less taut than the skin on the face.

[0067] Before explaining in detail at least one embodiment of the present invention, it should be understood that the present invention need not limit its application to the details of the construction and arrangement of the components and / or methods set forth in the following description and / or shown in the drawings and / or examples. The present invention is capable of having other embodiments or of being practiced or carried out in various ways.

[0068] Exemplary Shaving Device

[0069] Now refer to Figure 1A 、 Figure 1B and Figure 1C which show 2D and 3D schematic views of a shaving device according to some embodiments of the present invention. In some embodiments, the exemplary shaving device 100 includes a handle 102 and a shaving head 104. In some embodiments, the handle 102 includes an elongated body 106 adapted to be held by a user. In some embodiments, the elongated body 106 includes one or more ergonomic features / elements (not shown) to facilitate the use of the shaving device 100, such as, for example, one or more grippers and / or protrusions, optionally made of rubber or other non-slip materials. In some embodiments, the handle 102 includes a connection structure 108 configured to pivotally connect between the elongated body 106 of the handle 102 and the shaving head 104. In some embodiments, the connection structure is characterized by an inverted "U" shape or a double-arm structure, which is optionally adjustable and is configured to connect to the shaving head 104 from the side and further provide a certain degree of freedom of movement of the shaving head 104 relative to the elongated body 106 of the handle along axis AA, as schematically shown by the dashed line AA in Figures 1A through 1C . In some embodiments, the pivotal connection between the handle 102 and the shaving head 104 is effected by one or more connection mechanisms, such as, for example, a groove-protrusion mechanism, a pin mechanism, a clamping mechanism or any other connection mechanism known in the art. In some embodiments, the shaving device 100 is configured to perform shaving when moved back and forth, which means that the shaving device is a two-way shaving device. In some embodiments, the shaving head is configured to be tilted relative to the handle along the longitudinal axis at the position where the handle is connected to the shaving head. In some embodiments, the tilting is unrestricted, which means that the shaving head is allowed to rotate freely. In some embodiments, the tilting is constrained to a determined angle, such as, for example, from about ±5° to about ±25°, optionally from about ±3° to about ±45°, optionally from about ±1° to about ±90°.

[0070] Exemplary Shaving Head

[0071] Now refer to Figures 2A through 2C, shows a schematic view of an exemplary shaving head according to some embodiments of the present invention. In some embodiments, the shaving head includes a blade holder 202 configured to hold one or more blades 204, optionally at least two blades 204, which are held by the blade holder 202, and each blade 204 has a sharp end pointing towards the wheel 206. In some embodiments, the shaving head 104 includes one or more wheels 206, optionally at least two wheels 206, which are positioned on the sides of the blade holder 202 and on the sharp ends of one or more blades 204. In some embodiments, the shaving head 104 includes two cap holders 208 on the sides of the shaving head 104, which are configured to provide support to different components of the shaving head 104. For example, internally, they provide support to the wheel 206, to the blade holder 202, and to an optional reinforcing tube (not shown), while externally, the cap holders 208 include a connection mechanism for attaching the handle 102.

[0072] Now refer to Figure 2D , shows a schematic exploded view of an exemplary shaving head according to some embodiments of the present invention. In some embodiments, as described above, the shaving head 104 includes a blade holder 202, and one or more blades 204 are attached to the bottom side of the blade holder 202. In some embodiments, the shaving head 104 includes one blade 204, and one blade includes two sharp sides. In some embodiments, the shaving head 104 includes two blades 204, and each blade has one sharp side. In some embodiments, the shaving head includes two wheels 206. In some embodiments, the wheels 206 are configured to rotate freely. In some embodiments, the wheels 206 do not include a continuous body, but instead include a plurality of insert wheels 304 separated by a plurality of spaces 302, as Figure 3is schematically shown. In some embodiments, the width of the caster is from about 0.2 mm to about 0.6 mm, optionally from about 0.1 mm to about 1 mm, optionally from about 0.1 mm to about 1.5 mm. For example, the width of the caster is 0.4 mm, 0.5 mm, 0.6 mm. Optionally having a width greater than 1.5 mm. In some embodiments, the distance between the casters is from about 1 mm to about 4 mm. Optionally from about 0.5 mm to about 5 mm. Optionally from about 0.1 mm to about 10 mm. In some embodiments, the wheel includes a connecting pin 306 (see below) located on the side and configured to be positioned within an opening 402 in the cap retainer. In some embodiments, the wheel provides at least two functions: on the one hand, the wheel prevents the blade from reaching a damaging angle with the surface; on the other hand, the space 302 between the casters 304 guides the hair towards the blade and facilitates cutting of the hair by moving long hairs from a flat position to an upright position. In some embodiments, the diameter of the wheel 206 is from about 3 mm to about 10 mm, optionally from about 2 mm to about 15 mm, optionally from about 1 mm to about 20 mm. For example, 5 mm, 7 mm, 12 mm. Optionally greater than 20 mm. Optionally shorter than 1 mm.

[0073] In some embodiments, the shaving head 104 also includes two cap retainers 208, also as Figure 4 is schematically shown. In some embodiments, the cap retainer 208 is configured to provide support to different components of the shaving head. In some embodiments, the two wheels 206 are positioned within openings 402 in the cap retainer 208. In some embodiments, the blade holder 202 includes two pins (see below) configured to be inserted into openings 404 and 406 in the cap retainer 208. In some embodiments, one of the pins of the blade holder 202 is longer than the other and protrudes beyond the surface of the cap retainer 208. In some embodiments, the protruding pin is used to attach the handle 102 to the shaving head 104.

[0074] Now refer to Figures 5A through 5C, shows a schematic view of a blade holder 202 according to some embodiments of the present invention. In some embodiments, the blade holder 202 includes an elongated body 502 having a base 504 and a rib 506 extending vertically from the center of the base 504. In some embodiments, there are two pins 508 and 510 on the side of the blade holder 202, where optionally, the pin 510 is longer than 508. In some embodiments, the pins 508 / 510 are configured to fix the blade holder 202 to the cap holder 208. In some embodiments, the longer pin 510 is used to fix the handle 102 to the shaving head 104. In some embodiments, the bottom of the base 504 is not flat. In some embodiments, the angle of the bottom of the base 504 is from about 179 degrees to about 160 degrees, as Figure 5C schematically shown therein. In some embodiments, the bottom of the base provides an angle of from about 1 degree to about 10 degrees with respect to the surface to be shaved for the blade 106.

[0075] In some embodiments, exemplary dimensions of the shaving head are:

[0076] Width: from about 20 mm to about 50 mm, optionally from about 15 mm to about 80 mm, optionally from about 10 mm to about 100 mm. For example, 23 mm, 46.2 mm, 55 mm. Optionally greater than 100 mm. Optionally shorter than 10 mm.

[0077] Depth: from about 10 mm to about 20 mm, optionally from about 5 mm to about 25 mm, optionally from about 3 mm to about 50 mm. For example, 12 mm, 16 mm, 30 mm. Optionally greater than 50 mm. Optionally shorter than 3 mm.

[0078] Height: from about 5 mm to about 10 mm, optionally from about 3 mm to about 15 mm, optionally from about 1 mm to about 20 mm. For example, 4 mm, 6.77 mm, 12 mm. Optionally greater than 20 mm. Optionally shorter than 1 mm.

[0079] Now refer to Figure 6, a schematic diagram showing a comparison between the angles used in prior art blades and the angles used in the blades of the present invention, according to some embodiments of the present invention. The blade 600 in the prior art device includes a sharp edge with an angle of 22 degrees (11 degrees for each of the two sharp sides), and the end is a sharp tip 602. In some embodiments, the sharp tip 602 is the first part where the blade intersects the hair to be shaved, and generally the sharp tip 602 moves along the surface to be shaved so as to shave the hair as close to horizontal as possible relative to the surface. Additionally, when measured from the longitudinal axis of the blade 600, the blade 600 in the prior art device is generally positioned at an angle of about 22 degrees relative to the surface to be shaved. This causes the blade 600 to move at an angle of about 11 degrees relative to the surface to be shaved when measured from the longitudinal axis of the blade 600.

[0080] In some embodiments, the blade 106 of the shaving device 100 is positioned such that when measured from the longitudinal axis of the blade 106, it is positioned at an angle of about 1 degree to about 10 degrees relative to the surface to be shaved. Optionally, the blade 106 of the shaving device 100 is positioned such that when measured from the longitudinal axis of the blade 106, it is positioned at an angle of about 5 degrees relative to the surface to be shaved, as for example Figure 6 shown. In some embodiments, the blade 106 of the shaving device 100 is positioned such that when the shaving device 100 is in use, the end of the blade is not dragged along the surface to be shaved. When measured from the longitudinal axis of the blade 106 and / or when the sharp tip of the blade 106 is not dragged along the surface to be shaved, the potential advantage of positioning the blade at an angle of about 5 degrees relative to the surface to be shaved is that this potentially allows for safe shaving of non-tensioned surfaces (e.g., body skin).

[0081] Now refer to Figures 7A through 7B , which respectively show schematic diagrams of the bottom view of a shaving device and a side cross-sectional view of the shaving device, according to some embodiments of the present invention. In some embodiments, the blade 204 of the shaving device 100 is positioned adjacent to the wheel 206. In some embodiments, as described above, the wheel provides stability to the device and potentially prevents the blade from reaching an angle that may damage the surface to be shaved.

[0082] Exemplary Three or More Blades

[0083] Now refer to Figures 8A through 8H , which shows a schematic diagram of an exemplary shaving device including three or more blades, according to some embodiments of the present invention. In some embodiments, the shaving head 104 is provided with a protective cover 802 configured to cover the blade 206 and protect the user and the blade 206, such as Figure 8AAs shown. In some embodiments, a protective cover 802 is provided according to any of the above-exemplary embodiments of the shaving device. In some embodiments, the protective cover 802 is removed before using the shaving device, for example Figure 8B As schematically shown. In some embodiments, the exemplary shaving device includes more than one blade 204. In some embodiments, for example, as Figures 8B through 8H shown, the device includes two or more blades, optionally including three or more blades. In some embodiments, all of the plurality of blades are organized to have sharp ends facing the same direction, for example Figures 8A through 8H As shown. In some embodiments, not shown in these figures, the plurality of blades are positioned such that the plurality of blades face one direction while the plurality of blades face the opposite direction, for example Figure 2A -D, Figure 5C and Figures 7A through 7B As shown. In some embodiments, independent of the number of blades or their directionality, the exemplary shaving head includes two wheels 206, as described above. In some embodiments, the shaving head 104 includes a release button 806 that is configured to actuate a release mechanism configured to release the blade, as Figure 8C , Figure 8D and Figure 8E Schematically shown in. In some embodiments, the plurality of blades 204 are mounted on a blade holder 804. In some embodiments, releasing the plurality of blades includes releasing the blade holder 804. In some embodiments, the release mechanism allows the user to replace the blade individually while keeping the rest of the shaving device. In some embodiments, this is useful when the shaving device is multi-purpose. In some embodiments, the shaving device is a disposable shaving device. In some embodiments, the blade holder 804 includes a plurality of steps configured to receive a blade in each step, as Figure 8F , Figure 8G and Figure 8H Schematically shown in. In some embodiments, the number of steps in the blade holder 804 is the same as the number of blades. In some embodiments, the angle of the step is such that the blade is positioned at a desired angle, as described above, and as Figure 8F Schematically shown in.

[0084] Exemplary Lubricant

[0085] Now referring to Figures 9A through 9C , a schematic diagram of an exemplary shaving device including a lubricant wheel according to some embodiments of the present invention is shown. In some embodiments, one or both wheels of the shaving device include a lubricant sheet 902 configured to release a lubricant material when the wheel rotates on the skin. In some embodiments, the lubricant material can be any material that enhances the shaving experience.

[0086] Exemplary Kit

[0087] In some embodiments, a kit is provided that includes: an adjustable handle and a plurality of shaving heads, each shaving head having a different size. For example, the lengths of the plurality of heads are correspondingly 5 mm, 10 mm, 20 mm, 23 mm, 45 mm, 46.2 mm, 50 mm, 75 mm, and 100 mm.

[0088] In some embodiments, the user installs and removes the shaving heads according to their needs.

[0089] As used herein, with respect to a quantity or value, the term "about" means "within ±20% of".

[0090] The terms "comprising", "including", "containing", "covering", "having", "carrying", and variations thereof mean "including but not limited to".

[0091] The term "consisting of" means "including and limited to".

[0092] The term "consisting essentially of" means that a composition, method, or structure may include additional ingredients, steps, and / or parts, but only if the additional ingredients, steps, and / or parts do not materially alter the basic and novel characteristics of the claimed composition, method, or structure.

[0093] As used herein, the singular forms "a", "an", and "the" include plural references unless the context clearly dictates otherwise. For example, the term "a compound" or "at least one compound" may include multiple compounds, including mixtures thereof.

[0094] Throughout the application, embodiments of the present invention may be presented in a range format. It should be understood that the description of the range format is merely for convenience and brevity and should not be construed as a rigid limitation on the scope of the present invention. Thus, the description of a range should be considered to have specifically disclosed all possible sub-ranges as well as individual numerical values within that range. For example, the description of a range such as "1 to 6" should be considered to have specifically disclosed sub-ranges such as "1 to 3", "1 to 4", "1 to 5", "2 to 4", "2 to 6", "3 to 6", etc.; and the individual numbers within that range, e.g., 1, 2, 3, 4, 5, and 6. This applies regardless of how large the range is.

[0095] Whenever a numerical range is indicated herein (e.g., "10-15", "10 to 15", or any pair of numbers joined by another such range-indicating term), it is intended to include any number (fractional or integer) within the indicated range limitations, including those range limitations, unless the context clearly dictates otherwise. The phrases "ranging between a first indicated number and a second indicated number" and "from a first indicated number 'to', 'until', or 'up to' (or another such range-indicating term) a second indicated number" are used interchangeably herein and are intended to include the first and second indicated numbers and all fractions and integers therebetween.

[0096] Unless otherwise indicated, the numbers and any numerical ranges based thereon used herein are approximations within the reasonable measurement precision and rounding errors as understood by a person of ordinary skill in the art.

[0097] It should be understood that certain features of the invention that are described in the context of separate embodiments for clarity may also be provided in combination in a single embodiment. Conversely, various features of the invention that are described in the context of a single embodiment for brevity may also be provided separately or in any suitable sub-combination or appropriately in any other described embodiment of the invention. Certain features described in the context of various embodiments should not be considered essential features of those embodiments unless the embodiment is inoperative without those elements.

[0098] Although the invention has been described in connection with specific embodiments thereof, it is apparent that many alternatives, modifications, and variations will be apparent to those skilled in the art. Accordingly, the invention is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and broad scope of the appended claims.

[0099] The applicant intends that all publications, patents, and patent applications mentioned in this specification be incorporated herein by reference in their entirety, as if each individual publication, patent, or patent application were specifically and individually noted at the time of citation as being incorporated herein by reference. Additionally, the citation or identification of any reference in this application should not be construed as an admission that such reference is available as prior art to the present invention. As to the chapter headings used, they should not be construed as necessarily limiting. Additionally, any priority document of this application is hereby incorporated herein by reference in its entirety.

Claims

1. A shaving device for shaving a surface, comprising: a. A handle portion including an elongated body having a proximal end and a distal end; and b. A shaving head pivotally connected to the distal end of the handle portion, the shaving head including: i. A blade holder including a bottom side for connecting at least two blades; ii. At least two blades, each blade including at least one sharpened end; iii. Two wheels, each wheel being located near the at least one sharpened end of each of the at least two blades; wherein the bottom side of the blade holder includes an angle such that each of the at least two blades is positioned at an angle between about 1 degree and about 10 degrees relative to the surface to be shaved.

2. The shaving device according to claim 1, wherein the angle is 5 degrees.

3. The shaving device according to claim 1 or 2, wherein the shaving head comprises a blade having two sharp ends.

4. The shaving device according to any one of claims 1 to 3, wherein the two wheels comprise a plurality of small wheels spaced apart by a plurality of spaces.

5. The shaving device according to claim 4, wherein the width of each of the plurality of small wheels is from about 0.2 mm to about 0.6 mm.

6. The shaving device according to claim 4, wherein the width of each of the plurality of small wheels is 0.6 mm.

7. The shaving device according to claim 4, wherein each of the plurality of spaces is from about 1 mm to about 4 mm.

8. The shaving device according to any one of claims 1 to 7, wherein the shaving head is configured to be tilted along a longitudinal axis of the shaving head, the longitudinal axis intersecting the location where the handle is connected to the shaving head.

9. The shaving device according to claim 8, wherein the angle of tilt is from about ±1° to about ±90°.

10. The shaving device according to claim 8, wherein the shaving head rotates freely along the longitudinal axis.

11. The shaving device according to any one of claims 1 to 10, wherein the handle comprises a double-arm structure configured to interlock with the side surface of the shaving head for performing a reversible connection.

12. The shaving device according to claim 11, wherein the double-arm structure is adjustable.

13. The shaving device according to any one of claims 1 to 12, wherein the blade holder further comprises a base, wherein the bottom side is the bottom side of the base, and further comprises a rib extending vertically from the center of the base.

14. The shaving device according to any one of claims 1 to 13, wherein the two wheels are configured to rotate freely.

15. The shaving device according to any one of claims 1 to 14, wherein each of the two wheels has a diameter of about 1 mm to about 20 mm.

16. The shaving device according to any one of claims 1 to 15, wherein each of the two wheels has a diameter of 5 mm.

17. The shaving device according to any one of claims 1 to 16, wherein the shaving device further comprises two cap holders configured to provide support to components of the shaving head.

18. The shaving device according to claim 17, wherein each of the two cap holders comprises a plurality of openings configured to engage components of the shaving head.

19. The shaving device according to any one of claims 1 to 18, wherein the width of the shaving head is about 10 mm to about 100 mm.

20. The shaving device according to any one of claims 1 to 19, wherein the width of the shaving head is 23 mm.

21. The shaving device according to any one of claims 1 to 20, wherein the width of the shaving head is 46.2 mm.

22. The shaving device according to any one of claims 1 to 21, wherein the depth of the shaving head is about 3 mm to about 50 mm.

23. The shaving device according to any one of claims 1 to 22, wherein the depth of the shaving head is 12 mm.

24. The shaving device according to any one of claims 1 to 23, wherein the height of the shaving head is about 1 mm to about 20 mm.

25. The shaving device according to any one of claims 1 to 24, wherein the height of the shaving head is 6.77 mm.

26. The shaving device according to any one of claims 1 to 25, wherein the handle comprises one or more ergonomic elements.

27. The shaving device according to any one of claims 1 to 26, further comprising a protective cap configured to cover the at least two blades.

28. The shaving device according to any one of claims 1 to 27, wherein some of the at least two blades face one direction while some other of the at least two blades face the opposite direction.

29. The shaving device according to any one of claims 1 to 28, wherein all of the at least two blades face the same direction.

30. The shaving device according to any one of claims 1 to 29, wherein at least one of the two wheels includes a lubricant sheet that covers the at least one wheel and is configured to rotate and release lubricant material when using the shaving device.

31. A kit for shaving, comprising: a. An adjustable handle according to claim 1; and b. A plurality of shaving heads according to claim 1; wherein the plurality of heads include different sizes.

32. The kit for shaving according to claim 31, wherein the length of each shaving head among the plurality of shaving heads is 5 mm, 10 mm, 20 mm, 23 mm, 45 mm, 46.2 mm, 50 mm, 75 mm, and 100 mm, respectively.

Images