US2752679A

US2752679A - Scraper with replaceable blades of the type used in injector razors

Info

Publication number: US2752679A
Application number: US317727A
Authority: US
Inventors: Herbert A Shenkin
Original assignee: Individual
Current assignee: Individual
Priority date: 1952-10-30
Filing date: 1952-10-30
Publication date: 1956-07-03
Anticipated expiration: 1973-07-03

Description

July 3, 1956 A sHENKlN 2,752,679

H. SCRAPER WITH REPLACEABLE BLADES OF THE TYPE USED IN INJECTOR RAZOR-S Filed Oct. 30, 1952 INVENTOR. HERBERT 4. SHEA//f//V BYQMMJ fhu,

TTOZPNEW nited States Patent' lce SCRAPER WITH REPLACEABLE BLADES OF THE TYPE USED IN INJECTOR RAZORS Herbert A. Shenkin, Babylon, N. Y. Application (lctober 30, 1952, Serial No. 317,727 1 Claim. (Cl. 30-336) old blade from the razor and to replace the old blade with Used injector blades are very useful for scraping purposes by reason of their inherent characteristics, including their dimensions, their stiffness, the quality of their steel and other similar factors. But because of their relatively small size, no holder has heretofore been devised which would adequately receive them and properly hold them for scraping operations.

It is accordingly the principal object of this invention to provide a holder for injector blades so that they may be used for scraping purposes. This holder consists of two component parts, one of which is the injector blade container itself in which the blades are packed and sold. This component serves as the handle of the holder herein claimed. The second component is the blade holder proper and it is mountable upon the blade container. When the two components are thus attached to each other, they constitute a scraping device wherein the blade is an injector blade of the type herein described.

It is a corollary object of this invention to provide a holder for injector blades, said holder being suitable for mounting on a conventional injector blade container so as to utilize said container as a handle. This injector blade holder is provided with two component elements, one being the means for holding an injector blade and the other being the means for attaching said holder to an injector blade container. Both of these component elements are combined in a single integral unit which may be stamped out of a single sheet or strip of sheet metal.

An injector blade holder of the character herein claimed may thus be made at low cost in accordance with mass production methods. It may be made so inexpensive as to be suitable for give-away advertising purposes in much the same manner as beer can openers are distributed without charge by large beer companies. If desired, however, it may be sold to the ultimate consumer at tive and dime store prices.

A preferred form of this invention is shown in the accompanying drawing in which:

Fig. l is a face view of an injector blade holder made in accordance with this invention, showing an injector blade mounted therein.

Fig. 2 is a side View thereof.

Fig. 3 is a longitudinal section therethrough on the line 3 3 of Fig. l.

Fig. 4 is a face view of an injector blade scraper made in accordance with this invention, said scraper comprising the blade holder shown in the first three figures of the drawing mounted on an injector blade container of the type in which injector blades are packaged and sold.

Fig. 5 is a cross-sectional view on the line 5-5 of Fig. 4, showing the interlocking means which secures the blade holder to the blade container.

Fig. 6 is a longitudinal section on the line 6 6 of Fig. 4 showing how the blade holder holds the blade and how the blade container holds the blade holder.

Referring now to Fig. 4 of the drawing it will be seen that the injector blade scraper 10 herein described and claimed comprises the following component parts: injector type of blade 12, a blade holder 14 and a container 16 for injector blades, said container serving as a handle for holding the blade holder when thel blade is used for scraping and similar purposes. The blade is frictionally and tensionally held by the blade holder. The blade holder is frictionally held on the handle and there is also a locking element which prevents accidental disengagement of the blade holder from the handle. It will hereinafter be seen that the blade is slidably and removably mounted in the blade holder so that it may be pushed into the blade holder and held there frictionally to take the place of the first mentioned blade. same token, the blade holder may be slidably mounted on the handle and slidably removed therefrom.

Injector blade .12 is of conventional size and shape and t is made of such material, so treated, that it is relatively rigid and possesses a hard, sharp cutting edge. It is relaextends along one of its long sides.

Blade holder 14, as has above been indicated, is single sheet or st rip of light gauge sheet It possesses the following component parts: a blade holder proper 14a, a shank 14b and a socket-shaped portion 14C. Blade holder proper 14a has a back wall 14d and apair of spaced front walls 14e which flank the shank 14b. The back wall is joined to the front walls by means of bights 14f. It will be noted that these bights lend resilience to the front and back walls so as to enable them to tensionally grip the dat sides of the blade. The back wall 14d extends closer to the cutting edge of the blade than do the front Walls 14e. This has the effect of adequately supporting the blade while at the same time providing suicient cleardate the blade between them. They will tend to spring back to their original positions and will thereby exert spring pressure upon the blade to hold it in place. The spaced front walls are more yielding and exert less tensional pressure than the single back wall. This is important since if both walls, that is front and back, were each and both equally as unyielding as the single back wall shown in the drawing, it would be very difficult to insert a blade between them and to remove a blade from them.

Socket-shaped portion 14e is intended to slip over and receive shank 16a of the blade container 16. It will be noted that socket-shaped portion 14e` is provided with a back wall 14g, a pair of front walls 14h and a pair of bights 141 which join the side edges of said front walls 14h to the back wall 14g. The back and front walls of said socket-shaped portion are spaced from each other so as to form a channel between them which corresponds in width and depth to the width and thickness of shank 16a of the blade container. There is of course such clearance as may be necessary to provide relative movement between shank 16a and said socket-shaped portion and there may be a certain amount of tensional pressure exerted upon said shank by the front walls of said socket-shaped portion.

Back wall 14g of socket-shaped portion 14C is simply an extension of shank 14b as Fig. 3 clearly shows and said shank is in turn simply an extension of back wall 14d of the blade holding portion 14a. A boss 14j is formed on shank 14b and it will be noted that said boss is simply the positive or front aspect of a recess formed in the back of said shank. This boss is one of the locking elements by which the blade holder is locked to the handle.

It has been stated that handle 16 is a conventional container for injector blades in which said blades are packed and sold and from which they are individually dispensed. The container houses a magazine or clip of blades and it is provided with means (not shown) for cjecting the blades individually therefrom. It will be noted that handle or container 16 is a box-like affair which is rectangular in cross-section. It is somewhat longer than the blades themselves and one of its walls is provided with an extension piece which has above been referred to as shank 16a. This extension piece or shank 16a is provided with a recess 16b which corresponds in size and shape to boss 14j on shank 14b of the blade holder. Shank 16a may be slipped into socket portion 14e of the blade holder until its recess 16b engages boss 14j of shank 1417. Shank l16a will thereby be held in engagement with the blade holder and will thereby support said blade holder. Accidental disengagement of shank 16a from the blade holder will be prevented by reason of the locking engagement between boss 14j and recess 16h. Nonetheless, there is sufficient resilience in shank 16a so as to enable said shank to clear boss 14j both when the shank is inserted into the socket-shaped portion of the blade holder and when it is removed therefrom.

The foregoing is illustrative of a preferred form of this invention and it will be understood that -this preerred form may be modified and other forms may be provided within the broad spirit of the invention and the broad scope of the claim.

I claim:

A T-shaped holder for a flat blade, whereinv the blade is mounted in the crossbar of the T and the vertical portion thereof serves as a handle, said crossbar having a relatively high back wall and a pair of relatively low front walls which llank said vertical portion and which occupy parallel planes, said front walls being spaced from the back wall to receive the blade between them and the back wall, said front walls being joined along their lower edges to the lower edge of the back wall by means of a pair of bights which resilieutly urge the front walls in the direction of the back wall and thereby cause the front walls to exert tensioned pressure against the blade and to hold it in place against the back wall, said vertical portion being provided with a back wall. and a pair of front walls secured along their side edges to the side edges of the back wall, said last mentioned front walls being spaced from the last mentioned back wall to define a channel-shaped socket, a tubular handle being provided to extend the length of the lirst mentioned handle and to provide for greater comfort in holding and using the T-shaped holder, said tubular handle having a longitudinally extending shank which is removably insertable into said channel-shaped socket of the iirst handle to attach said tubular handle to said irst handle, said vertical portion of the iirst handle having a boss formed therein and said longitudinally extending shank of the tubular handle having a recess formed therein to accommodate said boss in order to lock the two handles together, the crossbar of the T and the vertical portion thereof being formed of a single sheet of metal, and the tubular handle, including its longitudinally extending channel, also being formed of a single sheet of metal.

References Cited in the tile of this patent UNITED STATES PATENTS 649,493 Stohlmann May 15, 1900 1,192,877 Ehlinger Aug. l, 1916 1,364,552 Hill Jan. 4. 1921 1,382,292 Kempton June 21, 1921 2,130,661 Zaebst Sept. 20, 1938 2,298,994 Hyatt Oct. 13, 1942 2,516,458 Forest July 25, 1950