US2004008A

US2004008A - Safety razor blade

Info

Publication number: US2004008A
Application number: US737845A
Authority: US
Inventors: Minnelli Vincent
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-07-31
Filing date: 1934-07-31
Publication date: 1935-06-04
Anticipated expiration: 1952-06-04

Description

June 4, 1935. v. MINNELLI ,0

SAFETY RAZOR BLADE Filed July 31, 1954 Elmo/rm Vzlmmi Mz'zmzZZzI Patented June 4, 1935 UNITED STATES PATENT OFFICE 4 Claims.

This invention relates to a safety razor blade and particularly one of the type adapted for use in the improved magazine razor blade holder filed by me of even date herewith.

It is particularly aimed to provide a blade adapted for ejection from the razor or holder and especially through the lowering movement of a new blade to contact with the old or blade being discharged, and particularly to provide such a construction as avoids the possibility of the cutting edge of the upper blade being damaged or marred by contact with the lower blade.

The more specific objects and advantages will in part be pointed out or become apparent from a consideration of the description following taken in connection with accompanying drawing illustrating an operative embodiment.

In said drawing Figure 1 is a view in front elevation illustrating a pair of blades in the position they assume in the razor construction, when the lowermost blade is being ejected by the uppermost blade;

Figure 2 is a plan view of a stack of the blades;

Figure 3 is an enlarged front elevation of one of the blades;

Figure 4 is a cross sectional view taken on the line 4-4 of Figure 3, and

Figure 5 is a cross sectional detail taken on the line 5-5 of Figure 3.

The razor blade made of any suitable metal or material is generally of rectangular shape, being generally designated I and preferably beveled or sharpened at its cutting edge I I, from one side of the blade only.

Adjacent opposite ends of the blade, slots or holes I2 are provided therethrough adapted to be engaged by holding elements of the holder or safety razor construction in which it is used.

The upper edge proper of said blade has any suitable number of notches l3, preferably a pair cut therein. Such notches are adapted to be engaged by the fingers in the safety razor construction, to hold the blade and aid in seating the same to operative position.

Since the fingers in instances where all of the notches l3 are alined in a stack of the blades, might engage and tend to feed more than one of the blades, such notches 13 of alternate blades in a stack, as shown in Figure 2, are disalined, the alternate blades thus limiting inward movement of the fingers and preventing engagement thereof with more than one blade.

It is also a feature in the razor blade construction of the previously mentioned application filed of even date herewith, to use the upper blade, to displace the lower blade, when the latter has become dull or is to be ejected. The upper blade is moved downwardly against the lower blade, as in the relation of Figure 1, causing the lower blade to be ejected. In order to prevent contact of the cutting edge of the upper blade with the lower blade, the lower corners of each blade are cut away as at M and lugs l5 are provided adjacent opposite ends of each blade extending above the upper edge. Such lugs l5 are higher than the height of the cut away portions l4 and hence such cutting edges II are held spaced from or out of engagement with the lower blade, when a pair of 15 the blades are engaged as in Figure 1.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:

1. A blade of the class described having a notch in its upper edge engageable by feeding and retaining means of a razor construction, lugs extending from the blade at opposite ends thereof, the blade at its cutting edge having notches 01' less depth than the length of said lugs for the purpose specified.

2. A blade of the class described having a notch in its upper edge engageable by feeding and retaining means of a razor construction, lugs extending from the blade at opposite ends thereof, the blade at its cutting edge having rectangular notches of less depth than the length of said lugs, and slots in the blade adjacent opposite ends thereof for the purpose specified, the inner side walls of said slots being transversely alined with the transverse walls of said rectangular notches.

3. In a razor blade, a blade substantially rectangular in shape and having one edge sharpened, lugs extending rearwardly from the edge opposite to the sharpened edge, and the sharpened edge of the blade provided with notches alined with the lugs aforesaid and less in depth than the length of said lugs for the purpose stated.

4. In a razor blade, a blade substantially rectangular in shape and having one edge sharpened, lugs extending rearwardly from the edge opposite to the sharpened edge and at opposite ends of the blade, and the ends of the sharpened edge of the blade provided with notches of less depth than length of said lugs for the purpose stated.

VINCENT MINNELLI.