Straight Injector Razor
InventionStraight Razor Adapted For Use With Injector Blades
FiledThursday, 26th August 1971
PublishedTuesday, 24th April 1973
InventorRobert E. Pearson
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
Performing Operations; Transporting
Hand Cutting Tools; Cutting; Severing
Hand-Held Cutting Tools Not Otherwise Provided For
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
Parts not referenced in the text: None
Parts not referenced in the images: None
UNITED STATES PATENTS
1,737,69612/1929 Allen...................................... 30/40.2
1,806,097 5/1931 Schick...................................... 30/40.2
2,587,380 2/1952 Polynice................................ 30/40.2
2,821,779 2/1958 Kleinman............................... 30/40.2
995,274 6/1911 Miller...................................... 30/40.2
1,212,956 1/1917 Johnstone.............................. 30/40.2
1,404,686 1/1922 Coleman................................ 30/40.2
Primary Examiner—Othell M. Simpson
Assistant Examiner—Gary L. Smith
Attorney—Verne A. Trask et al.
A razor of the straight razor type has closely spaced blade shields adjacent one of its ends, and an opening adjacent to but spaced from the blade shields which will receive a key of an injector cartridge with an interference fit, which may use injector blades and receive them directly from their cartridge.
This invention relates to a razor, and more particularly to a razor of the so-called straight razor type, but which is adapted for use with injector razor blades.
Straight razors, which generally comprise a handle and pivotally attached blade, have been in use for many years. The so-called safety razors are also well known. Safety razors utilize a single or double-edged blade firmly held in a housing having a handle with only the cutting edge or edges of the blade exposed. Various proposals have been made for hybrid type razors which are like the conventional straight razor except that they have a blade holder portion which carries a removable blade. This invention relates to such a straight razor adapted to be used with commercially available injector blades.
The injection of blades from presently available injector cartridges into the razor of this invention presents a problem, since the cartridges are constructed so as to eject blades in a plane perpendicular to the plane of the cartridge stem or key. To inject blades from such a cartridge into the blade holder of this invention necessitates that the cartridge eject the blades in a plane parallel to or coplanar with the plane of the cartridge key. This problem is solved by a new cartridge or cartridge adapter as illustrated generally in
In one form, a razor according to this invention has a handle connected to a blade holder portion. Adjacent one of its ends, the blade holder portion has two closely spaced blade shields and an opening which is adjacent to but spaced from the blade shields. That opening is adapted to receive a key of a blade injector cartridge with an interference fit therebetween. The areas adjacent to the ends of the blade shields are unobstructed. The razor may receive injector blades directly from their cartridge.
Apparatus in accordance with this invention is illustrated in the accompanying drawing in which:
As best seen in
One of the shields
1. A razor of the straight razor type comprising a handle connected to a blade holder portion, a shank having a narrow end portion, said shank being inter-fitted with said blade holder portion to form a blade holder assembly, said blade holder assembly having adjacent one end thereof two closely spaced blade shields parallel to one another and extending vertically from said assembly and an opening adjacent to but spaced from said shields, said opening being adapted to receive with an interference fit a key of a blade injector cartridge, and said blade shields having unobstructed blade inject and blade eject areas adjacent their ends.
2. The invention as set forth in claim 1 wherein said blade holder portion has a pair of spaced, parallel legs adjacent one end thereof and has adjacent the other end thereof, a bottom, side walls extending upwardly from said bottom and spaced apart a sufficient distance to receive the narrow end portion of said shank, and inwardly sloped portions integral with said side walls, said blade shields being integral with and extending upwardly from said sloped portions.
3. The invention set forth in claim 2 wherein said opening for a key of a blade injector cartridge is defined by said blade holder bottom and side walls and the narrow end portion of said shank.