# US 5,704,127 A · Concave, convex safety razors

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- Number: US 5,704,127 A
- Document ID: US5704127A
- Status: Granted
- Kind: A
- Application number: 08/609,948
- Filed: 1996-03-04
- Granted: 1998-01-06
- Earliest claimed: 1996-03-04
- Inventors: Caroline Cordio
- Web page: https://patentgrep.com/patent/US5704127A

## CPC

- B26B 21/523: {Extendible or foldable handles; Extensions}
- B26B 21/14: Safety razors with one or more blades arranged transversely to the handle
- B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H)

## Abstract

A concave, convex safety razor with an extensible handle includes a safety razor blade housing having a concave cutting surface on one end and a convex cutting surface on the other end, that includes a removable and rotatable device disposed on the housing. An elongated handle cooperates with the removable and rotatable device disposed on the housing permitting rotation of the safety razor blade housing and removal and replacement thereof. A hollow extensible handle is adapted to be affixed to the safety razor handle and is capable of extending the length thereof.

## Claims

### Claim 1

A concave, convex safety razor comprising:
A. a safety razor blade housing having;
a) a razor blade with a concave cutting edge and a convex cutting edge disposed within said razor blade housing, and
b) one portion of a removable and rotatable means disposed on said housing;
B. a handle having a first end and a second end;
a) means disposed on said handle first end adapted to receive and cooperate with said portion of said removable and rotatable means disposed on said housing for removably retaining said safety razor blade housing and permitting rotation of said housing; and
C. hollow extensible means adapted to receive said handle second end therein and extend essentially the length of said handle, said hollow extensible means having;
a) a threaded first end cut to form a plurality of flexible fingers, the distal end of said fingers being provided with a retaining means, said threaded first end being adapted to receive said handle, and
b) threaded nut means for locking said handle therein adapted to cooperate with said threaded flexible fingers and be retained thereon by said retaining means.

### Claim 2 (depends on 1)

A concave, convex safety razor according to claim 1, wherein said hollow extensible means has at least two sections with the total length of said extensible means being adjustable by a user thereof.

### Claim 3

A concave, convex safety razor comprising:
A. a razor blade housing with an elongated handle removably affixed thereto;
B. hollow extensible means adapted to receive one end of said elongated handle extending the length of said elongated handle, said extensible means includes;
a) a threaded first end cut to form a plurality of flexible fingers, the distal end of said fingers being provided with a retaining means thereon, said threaded first end being adapted to receive one end of said elongated handle, and
b) threaded nut means for locking said one end of said elongated handle therein by cooperating with said threaded flexible fingers and be retainer thereon by said retaining means.