US2505908A

US2505908A - Razor blade sharpener

Info

Publication number: US2505908A
Application number: US74202A
Authority: US
Inventors: Jr Howard Millard
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-02-02
Filing date: 1949-02-02
Publication date: 1950-05-02
Anticipated expiration: 1967-05-02

Description

11. W0 H. MILLARD, JR

RAZOR BLADE SHARPENER Filed Feb. 2, 1949 INVENTOR. Howard fl/zZ/a 2%? Jr ATTORNEYS i afenteci May 2,

UNITED STATES. QFFICE RAZOR BLADE SHARPENER Howard Millard; Jn, Narberth, Par Application February 2, 1949, Serial lilo. 74,202

2 Claims.

This invention relates to a sharpener, and more particularly to a device for sharpening safety razor blades.

In using safety razor blades, it has been determined that maximum sharpness and smooth cutting is only possible when the cutting edge oithe blade is in the highest possible alignment with the blade bevel. If any sharpening process produces more pressure on one side than the other, the result is a turned edge" and results in scraping and pulling when shaving. To overcome this, it is necessary that both sides of the blade bevel be contacted by the sharpening device at the same time with equal pressure.

It is therefore an object of this invention to provide a sharpener which will result in a minimum of turned edges" with resulting high cutting efliciency.

Another object of this invention is to provide a safety razor blade sharpener which has no intricate parts or mechanism, and which is simple to operate.

A further object of the invention is to provide a safety razor blade sharpener which is extreme- .ly simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this application, and in which like numerals are employed to designate like parts throughout the same:

Figure 1 is a top plan view of the razor blade sharpener, according to the present invention;

Figure 2 is a side elevational View of the razor blade sharpener;

Figure 3 is a sectional view taken on the line 3-3 of Figure 1; and

Figure 4 is an enlarged sectional view taken on the line 4-4 of Figure 2.

Referring in detail to the drawings, the numeral l designates an elongated base which is preferably fabricated from a suitable plastic such as methyl methycrylate. The base In is cut-away or otherwise shaped to define a concave surface H, and abutting the concave surface ll of the 2 to or formed integrally therewith. Each of the arms l5 has its lower surface beveled or cutaway adjacent its outer or free end, as at it and this beveled edge It coacts with the concave surface ll of the base to define a recess for receiving therein the blade I1, Figure 1, to be sharpened.

For maintaining the parts in assembled relation, the base It! is provided with an aperture IB intermediate its ends, and the aperture I8 registers with the aperture It in the support member l2. A headed bolt 19 projects through the registering apertures l4 and i8 and a nut 20 is threaded onto the bolt l9, whereby the support member 12 is detachably connected to the base I0.

In use, the razor blade ll to be sharpened is arranged as in Figure 1, and upon manual movement of the razor blade ll relative to the sharpener, the blade edges will be sharpened by frictional contact with the beveled edge 16 and concave surface ll. Thus, the sharpener is constructed so that the beveled edge It and concave surface ll coact to define a recess whereby equal pressure will be exerted on both sides of the blade edge at the same time. This will eliminate turned edges and result in a smoother shave when the blade is used. The support member l2 and the base 10 are each constructed of a plastic such as methyl methacrylate and this material produces or provides the small amount of abrasion necessary. Further, the plastic is sufficiently flexible to prevent damage to the blade being sharpened.

By using the blade sharpener of the present invention, before each shaving operation, the life of the safety razor blade can be greatly increased. The sharpener is compact and can be readily carried in the pocket or other receptacle when the user is traveling.

As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment here and before shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative and not in a limited scope.

I claim:

1. In a razor blade sharpener, a base fabricated of methyl methacrylate plastic and provided with a concave surface, a support member fabricated of methyl methacrylate plastic and positioned intermediate the ends of said base and abutting the concave surface thereof, means for detachably connecting said support member to said base, said support member comprising a pair of arms, said arms having a portion of their lower surface beveled adjacent the outer ends thereof for coacting with said concave surface to define a recess for receiving therein the blade to be sharpened.

2. A razor blade sharpener, comprising a base fabricated of methyl methacrylate plastic and provided with a concave surface, a support member fabricated of methyl methacrylate plastic abutting the concave surface of said base, there being registering apertures in said support memher and base, a securing element projecting through the registering apertures for detachably connecting the support member and base to? gether, said support member comprising a pair of oppositely extending arms, said arms having a portion of their lower surface beveled adjacent the outer ends thereof for coacting with said 4 concave surface to define a recess for receiving therein the blade to be sharpened.

HOWARD MIILARD, J1.

REFERENCES CITED The following references are of record in the fi le of this patent:

UNITED STATES PATENTS Number Name 1 Date 1,916,019 Schwartz June 2'7, 1933 FOREIGN PATENTS Number Country Date 345,551 Great Britain June 25. 1930