US2434275A

US2434275A - Safety razor

Info

Publication number: US2434275A
Application number: US578444A
Authority: US
Inventors: Jesse D Langdon
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-02-17
Filing date: 1945-02-17
Publication date: 1948-01-13
Anticipated expiration: 1965-01-13

Description

Jan. 13}, 1948. J. o. LANGDON SAFETY RAZOR Filed Feb. 17, 1945 Patented Jan. 13, 1948 U'l'D STATES PATENT OFFICE SAFETY RAZOR Jesse D. Langdon, Long Beach, Calif.

Application February 17, 1945, Serial No. 578,444

6 Claims.

The instant invention relates to safety razors for shaving and has for its chief object the stretching of the skin ahead of the cutting edge of the blade and is of especial benefit where the skin of the user is loose or wrinkled.

Another object is to provide a razor guard which may be used on existing types of safety razors already in use.

A further object is to design a type of razor guard equally adaptable to either a single or double edged razor.

A still further object is to provide a new type of safety razor wherein the handle is attached to the razor guard itself and whereby the blade is adjusted by the thrust of the handle against the blade, tensionin the same against the concave surface of the razor guard, which has the contacting side thereof substantially in line with the contacting surface of said razor guard.

Other and further objects and purposes will appear as the specification proceeds.

It is specifically understood that the reduction to practice shown by the drawings is for the purpose of illustration only and may be changed within the scope of the claims.

Of the drawings:

Fig. 1 is an elevation of the completely assembled razor looking from the end of the guard.

Fig. 2 is a side elevation.

Fig. 3 is a top plan view.

Fig. 4 is an exploded view in perspective with part of the handle broken away.

The elements of the assembly forming the invention comprise, a handle H the lower end of which is rounded to form a curved end CN approximating the curvature of an adjoining concave surface of a guard plate, the guard plate provided with a threaded assembly pin AP, and if desired, slot bosses SB may be used to hold a blade B in alignment with a guard bar or guard bars GB extended paralleled with and spaced apart from the center plate from which the guard bars GB are suspended in operative position by spring loops SL which are arched upwardly to an extent sufficient to lend the required amount of flexibility for the guard to urge slack skin and iron out wrinkles ahead of the guard bar GB as at SS Fig. 1, thus forming a smooth skin surface ahead of the cutting edge CE of blade B.

The spring loops SL form spring notch guides SNG to register with the spring notches SN of blade B to hold same in alignment with blade slots BS and guard bar GB. The slot bosses may be dispensed with if it is desired to use a special unslotted blade using spring notches SN only.

The juxtaposition of the cutting edge of blade B may be changed with relation to the guard bar GB to provide the amount of tension against the skin which the operator desires to use, the higher the cutting edge CE of the blade B in relation to the guard bar GB, the greater the tension required to bring the edge CE into proper relationship to the surface to be shaved.

The tightening of the handle H raises the cut ting edge CE of the blade B into blade slot BS and vice versa.

It is obvious that the spring extended bar GB can be applied to either a single edged or double edged type of safety razor.

Having described the invention and that which is new, the following claims are made:

1. A combination with a double edged blade forming safety razor comprising a curved guard plate having a guard bar spaced away from and lying parallel with the opposite edges of the blade and being suspended from said curved guard plate by flexible spring loops extended from and formed integral with the guard plate, attaching means for joining said guard plate and the handle adapted to hold a razor blade in operative position between said handle and said guard plate and urge the razor blade to a curvature substantially that of said guard plate, the end of said handle proximate to said razor blade being curved to substantially conform with the concavity of said curved guard plate whereby said opposite edges of said razor blade are raised into the space between said guard bar and guard plate, said handle and guard plate including means to urge said handle and guard plate toward one another and clamp said blade therebetween.

2. A one piece safety razor guard for a double edged blade comprising a guard plate having spring loops extended therefrom, and guard bars attached and integral with the loops and spaced parallel with and away from said guard plate and forming spaces for aligning the opposite edges of the razor blade in said spaces between said guard plate and said guard bar.

3. A razor guard for a double edged razor blade comprising a perforated plate made of resilient sheet material stiff enough to hold its shape and capable of bending under stress and returning to original form when relieved of stress, said razor guard formed with oppositely disposed guard bars suspended beyond the opposite edges of the blade by loops of the material extended from the opposite edges of said razor guard near the ends thereof; said loops being amply extended to, and having radii suflicient to permit the bars razor comprising a curved razor guard plate made of resilient sheet material capable of being pressed to form and holding its form and of being flexed and returning to normalshape after being flexed, a double edged razor blade of less;

curvature than the guard plate and being of greater flexibility than the guard plate, the razor blade juxtaposed between a handle and said guard plate, substantially narrow portions of said guard plate extended from the opposite sides of a central curved portion of the plate near the ends thereof and formed into loops with guard bars depending from said loops beyond the opposite edges of said double edged razor blade and adapted to contact a shaving surface ahead of the opposite edges of the blade, said handle adjustably attached for spaced relationship to the concavity formed by the curved portion of said razor guard plate whereby more or less spring tension is achieved with relation to the edges of the blade and the sprin tension bars against a shaving surface. 1

5. In combination, a safety razor assembly comprising a razor guard plate formed by a resilient sheet metal stamping having a curved central portion, a razor blade of less curvature and more flexibility than said curved central portion disposed between the concavity of the plate and a handle adjustably attached to said plate, said razor blade being impinged by the end of the handle proximate to said plate, whereby the curved relationship between said plate and said razor blade is varied, the central portion of said plate having loops of relatively narrow section extended from the opposite edges near the ends thereof with guard bars depending therefrom, said loops capable of flexing to permit movement of said guard bars independent of said central portion, the bars lying parallelly to and forwardly of the edges of the blade whereby a spring tensioned contact against a shaving surface is maintained ahead of the cutting edge of the blade.

6. A safety razor comprising a curved guard plate, spring means extended from said guard plate, guard bar means depending from said spring means and standing in substantial alignment with the plane of the plate, adjustable han- -dle attaching means provided between the plate and a handle attached to said plate, flexible razor blade means disposed and intervening between the concavity formed by the convexity of said plate and the handle, the cutting edge of the blade juxtaposed within a slot formed between said plate and said guard bar means, whereby the adjustment of said handle will change the altitude of said cutting edge with relation to the plate and the bar, thereby changing the spring tensioned relationship between said cutting edge and the spring hung guard bar means, permitting a change in the pressure required to urge said cutting edge into active cutting position, and smooth out the skin ahead of the cut.

JESSE D. LANGDON.

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

UNITED STATES PATENTS 40 Number Name Date 1,503,615 Christy July 22, 1924 1,263,219 Ballreich Nov. 13, 1917 983,640 Ocumpaugh Feb. '7, 1911