1. Field of the Invention
The present invention relates to personal shaving razors and particularly disposable and replaceable razors for grooming in fine detail.
2. Description of the Related Art
Current razors both disposable and replaceable head-type are typically suited to remove hair from the face or legs or head and are usually about an inch across in shaving width. Other previous razors are adapted for trimming, rather than shaving. There is a need for a razor with a reduced size head for shaving areas requiring much finer detail such as, for example, the eyebrows, the bikini area, and around the nose and ears. There is also a need for such a razor for shaving fine details. and shapes into the hair on a person's scalp, such as is popular among some cultures. What is needed is a razor capable of shaving in much finer detail.
The systems and methods have several features, no single one of which is solely responsible for its desirable attributes. Without limiting the scope as expressed by the claims that follow, its more prominent features will now be discussed briefly. After considering this discussion, and particularly after reading the section entitled “Detailed Description of the Preferred Embodiments” one will understand how the features of the system and methods provide several advantages over traditional systems and methods.
One aspect is a personal styling razor, comprising a handle portion having lower, middle and upper longitudinal portions and a head portion having a razor blade integrally attached to the head portion. In one embodiment, the lower longitudinal portion extends along a first axis and the upper longitudinal portion extends along a second axis and the first and second axes form a control angle that is less than ninety degrees and the razor blade has a width of less than or equal to one inch.
In another aspect, the head portion is replaceable. In some embodiments, the head portion is pivotally mounted on the handle portion. The personal styling razor of some embodiments has a control angle of greater than ninety degrees.
In yet another aspect, the personal styling razor has a length of the upper longitudinal portion that is greater than the width of the blade.
In some aspects, the personal styling razor further comprises a second razor blade mounted substantially parallel to the razor blade.
In another aspect, the personal styling razor has a lower longitudinal portion that comprises a first curved shape and a middle longitudinal portion that comprises a second curved shape and wherein the first and second curved shapes form an ergonomically advantageous grip for the personal styling razor.
In yet another aspect, the personal styling razor further comprises a glide surface area and a blade area, wherein the glide surface area is larger than the blade area.
In another embodiment, the personal styling razor comprises a handle portion having lower and upper longitudinal portions, a head portion, having a razor blade with a straight cutting edge, attached to the upper longitudinal portion; where the cutting edge of the razor blade is substantially perpendicular to a longitudinal axis of the handle; where the lower longitudinal portion has a longitudinal axis and the upper longitudinal portion has a longitudinal axis, where the longitudinal axes of the upper and lower longitudinal portions form an angle that is about 135 degrees, where the head portion is less than or equal to ¼ inch wide, where the razor has an overall length of less than or equal to about 3.5 inches and where the lower longitudinal portion has a maximum diameter of less than or equal to about ¼ inch wide. In some embodiments, the head portion and handle portion, with the exception of the blade, are a single piece of molded plastic. In some embodiments, the personal styling razor further comprises a grip enhancing element on a portion of the lower longitudinal portion of the handle, where the grip enhancing element has a maximum diameter less than or equal to about ⅜ inch.
In a preferred embodiment, the personal shaving razor comprise a handle portion having an upper longitudinal portion and a lower longitudinal portion, where the lower longitudinal portion has a longitudinal axis and the upper longitudinal portion has a longitudinal axis and the longitudinal axes of the upper and lower longitudinal portions form an angle that is about 135 degrees, and the handle portion has a maximum width of less than or equal to about ¼ inch wide; a head portion attached to an end of the upper longitudinal portion of the handle such that the head portion is substantially normal to the longitudinal axis of the upper longitudinal portion of the handle, the head portion having a razor blade with a straight cutting edge that is substantially perpendicular to a longitudinal axis of the handle; where the head portion and blade are less than or equal to about ¼ inch wide; where the razor has an overall length of less than or equal to about 3.5 inch; and where the cutting edge of the blade extends beyond the head portion about 0.02 inch such that no portion of the razor extends beyond the cutting edge of the blade, and the cutting edge of the blade is unobstructed by any portion of the razor, such that the cutting edge can shave unwanted hair from a body surface by cutting the hair close to the root.
a is a front elevational view and
Embodiments of the invention will now be described with reference to the accompanying figures, wherein like numerals refer to like elements throughout. The terminology used in the description presented herein is not intended to be interpreted in any limited or restrictive manner simply because it is being utilized in conjunction with a detailed description of certain specific embodiments of the invention. Furthermore, embodiments of the invention may include several novel features, no single one of which is solely responsible for its desirable attributes or which is essential to practicing the inventions herein described.
Embodiments of the present invention relate to a styling and grooming razor used for removing unwanted body hair in hard-to-reach or awkward places. Additionally, the razor of these embodiments can be used for shaving with a high degree of detail for safety and ornamental shaving. For example, the razor could be used to groom the eyebrows, moustache, nose, sideburns, scalp, abdomen, bikini area, toes and other parts of the body. Unlike prior razors, the present razors are specifically designed to enable the user to shave unwanted hair close to the skin with great precision and detail. Previous small razors were designed only to permit trimming of hair from orifices such as the nose or ear, or had other design features which prohibited their use to precisely shave by cutting unwanted hair close to the root or at the surface of the skin—this the difference between “shaving” and “trimming”. Certain embodiments are able to accomplish such effects because the size of the razor blades and/or razor head are very small in comparison to conventional razor blades and because the handle allows for greater control of the razor blade. In some embodiments, the blade and/or the combined width of the blade and head portion of the razor is 1 inch, ½ inch, ⅜ inch, ¼ inch, ⅛ inch or any size or range of sizes in between any of these sizes. Furthermore, in certain embodiments, each of the different size blade(s) or head(s) can be used as interchangeable cartridges on the same razor handle, and can have single or multiple cutting edges.
In certain embodiments, the razor is integrally molded, in plastic for example, to provide a number of different blade width shaving heads in a disposable form. The various width shaving heads can be interchangeably mounted on the same handle in some embodiments allowing maximum flexibility in the usage of a shaver. For instance, for general purpose shaving a larger shaving head can be used such that an area of hair can be removed faster. However, where an area is difficult to shave due to the space availability of the surface, or where greater detail is required, a smaller shaving head can be used to carefully remove the unwanted hair while leaving undisturbed the surrounding hair or skin.
Conventional hand-held razors exist in disposable and replaceable head, or standard, types. For example, standard and disposable razors are marketed by Gillette, Schick and other such companies. These companies typically sell these two types of razors. The disposable razor includes a handle and angled head having a fixed blade or twin fixed blades as a single, integrally molded device. The disposable razor may be thrown away when the blade has become too dull for effective shaving. The standard razor includes a handle and head that includes some sort of retention mechanism for holding replaceable blade cartridges.
While both types of razors are extremely popular, the razor blades are fairly wide and are typically only effective for shaving large surfaces such as facial hair or leg hair, for example. Embodiments of the present invention provide a significant improvement in that a variety of narrower width blades can be provided to facilitate use of a razor for styling and grooming of smaller or more awkward areas of the body. Additionally, other embodiments facilitate the use of different sized blades such that large amounts of hair can be removed as in common disposable and standard razors and also very detailed shaving can be performed with the same handle by switching the shaving head.
Still referring to the embodiment illustrated in
Other embodiments of the blade mounting portion 20 are produced as a complete unit through injection molding or other typical manufacturing techniques. Yet other embodiments produce other portions that are then combined to form the head portion. Manufacturing techniques that are currently utilized to produce standard shaving cartridges are used in other embodiments, with the processes being slightly modified to produce the smaller blade sizes. These are only a few examples and any process can be used to manufacture the blade attachment portion for connection to the handle 10. It should be noted that two or more razor blades could be fit into the recess on the blade attachment portion 20 to provide additional cutting edges.
An alternative embodiment is shown in
The first longitudinal axis 33 and the third longitudinal axis 37 form a control angle A that provides another design characteristic that can be controlled to maximize the control or effectiveness of the razor 30. In the embodiment illustrated in
Furthermore, the shaving head 38 is mounted to the upper longitudinal portion 36 at an angle that is appropriate for the application of the razor. In some embodiments, the shaving head 38 is mounted at a right angle while in other embodiments it is mounted at an angle where the bottom of the shaving head 38 is closer to the handle 31 of the razor 30, while in yet other embodiments, the shaving head 38 is mounted such that the bottom of the shaving head 38 is directed away from the handle 31 of the razor 30. In some embodiments, the shaving head 38 is mounted via a pivoting joint (not shown) such that the angle of the shaving head 38 can vary with respect to the rest of the razor 30 during shaving allowing its use in various applications. Any pivot joint capable of rotatably connecting the shaving head 38 to the upper longitudinal portion 36 can be used. The interaction of the length of the upper longitudinal portion 36 with the positioning of the lower longitudinal portion 32 and the contour angle C can be combined with the effects of the control angle A and the extension angle B to maximize the control over the shaving head 38 by the user. This allows the razor 30 to be used in areas where a high degree of precision is required.
By combining the extremely small shaving head 38 of some embodiments with the maximized precision control allowed by the handle 31, a razor 30 can now be manufactured that can be used to shave hair from areas not previously possible. While previous razors may have been somewhat smaller than other previous razors, none of those examples could are used for shaving hair as embodiments described herein allow. In some embodiments an upper longitudinal portion of a length of ¼ inch or larger is used in conjunction with a shaving head 38 that is ¼ inch or larger in width to allow a stylist to shave fine details into the scalp or beard of a person. Currently there is no razor available that is suitable for this application. Stylists previously broke straight razor blades to create shaving blades of the proper geometry to allow them to shave the styles requested by customers. This practice is unsafe for both the stylist and the customer. The razor 30 of the embodiments described herein allows safer shaving of such designs.
Certain embodiments utilize surface treatments to increase the grip of the handle 31 of the razor 30. Such treatments can include providing an uneven or knurled surface on the front, back or on one or both sides of the handle 31. Other embodiments attach a rubber surface or other material to all or portions of the handle 31 to increase the coefficient of friction of the handle 31, especially when wet. Yet other embodiments form the handle 31 of the razor of a material that itself has a high friction coefficient when held in the hand to increase the gripping capability by the user, even when wet.
Unexpected results have been obtained by the use of the razor having a generally reduced sized shaving head 38 in combination with an ergonomically designed handle. In embodiments described herein, varying the angle of the shaving head with respect to the handle can impact the comfort and ease of shaving various hair-growing locations. Varying angles of portions of the handle of the razor can also affect the ease of such shaving. In some embodiment, it has been found that combining a handle having relatively large width portions with a shaving head of very small width greatly improves the ability to shave in an accurate and detailed manner.
As is illustrated in
a is a front elevational view, and
The lower longitudinal portion of the handle 84 preferably has a maximum diameter or width B that is about ¼ inch, although other diameters are possible, such as about ⅜ inch, or about ⅛ inch, or any size or range of sizes in between any of these sizes. The lower longitudinal portion of the handle has a grip enhancing element 86 disposed around it which preferably has an outer diameter or maximum width C of about 0.33 inch, although other diameters or widths are possible, such as about ⅜ inch, ¼ inch, or about ⅛ inch, or any size or range of sizes in between any of these sizes. The grip enhancing element 86 covers only part of the lower longitudinal portion 84 of the handle, and has a length dimension D preferably of about 1 inch, although other lengths are contemplated, such as about 1.5, 1.25, 0.9, 0.8, 0.7, 0.6, 0.5, or any size or range of sizes in between any of these sizes. The grip enhancing element is preferably made from a deformable material such as a thermoplastic elastomer, and can optionally have an irregular surface to enhance gripping of the handle. The razor preferably has an overall length E of about 3.4 inches, although other lengths are contemplated, such as about 3.75, 3.5, 3.25, 3.0, 2.75, 2.5, or 2.25, or any size or range of sizes in between any of these sizes.
Applicant has discovered that it is advantageous to hold the handle between the fingertips such that the head of the razor is relatively close to the fingertips as compared to a standard razor, and the portion of the handle below the portion gripped between the fingers is short enough that it does not contact the palm of the hand. Therefore, it is preferable that the overall length E of the razor be less than about 3.75 inches, and the diameter or maximum width B of the lower longitudinal portion 84 and/or the diameter or maximum width of C of the gripping element 86 be less than about ⅜ inch as this allows the user to manipulate the razor by holding the handle in just the fingertips.
The lower longitudinal portion 84 is tapered at the end closest to the upper longitudinal portion. This taper, along with the overall dimensions and placement of elements such as the grip enhancing element 86, combined to provide an esthetically pleasing razor.
The razors of the various embodiments illustrated and described above allow a user to shave parts of the body where shaving was previously not performed. The advantageous shape of the handle allows a user much greater control of the shaving head providing the confidence to shave the locations that the smaller shaving head make available. Up until now, people who have shaved designs into the hair of the scalps, beards or sideburns of others, typically use currently available razor blades to do so. They break a straight razor blade by hand into smaller pieces that can then be used to shave with the precision required for the details that were created. The embodiments described herein provide an alternative to this dangerous practice that will allow the detail shaving necessary to create the desired styles while providing a level of safety not currently available in the methods previously employed.
The foregoing description details certain embodiments of the invention. It will be appreciated, however, that no matter how detailed the foregoing appears in text, the invention can be practiced in many ways. As is also stated above, it should be noted that the use of particular terminology when describing certain features or aspects of the invention should not be taken to imply that the terminology is being re-defined herein to be restricted to including any specific characteristics of the features or aspects of the invention with which that terminology is associated. The scope of the invention should therefore be construed in accordance with the appended claims and any equivalents thereof.
The present application is a continuation of U.S. application Ser. No. 11/775,688, filed Jul. 10, 2007 and scheduled to issue as U.S. Pat. No. 9,108,329 on Aug. 18, 2015, which claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Application No. 60/830,952, filed Jul. 14, 2006; U.S. application Ser. No. 11/775,688 is a continuation-in-part of U.S. application Ser. No. 10/648,686, filed Aug. 25, 2003, now abandoned. The disclosures of all of the above-referenced prior applications, publications, and patents are considered part of the disclosure of this application, and are incorporated by reference herein in their entirety.
Number | Date | Country | |
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60830952 | Jul 2006 | US |
Number | Date | Country | |
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Parent | 11775688 | Jul 2007 | US |
Child | 14820343 | US |
Number | Date | Country | |
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Parent | 10648686 | Aug 2003 | US |
Child | 11775688 | US |