Precision razor with angled wash through channel

Abstract

A shaving razor with an angled wash through channel. A razor blade is sandwiched between a base member and a blade cover. The based member is unitarily molded to include an integral blade guard that resides ahead of a cutting edge of the razor blade in a cutting direction, the base member also defines a wash through channel opening at an angle in the range of 30-70 degrees.

What is claimed is: 
     
         1 . A shaving assembly comprising:
 a razor blade;   a base member in which the razor blade resides, the base unitarily molded to include an integral blade guard that resides ahead of a cutting edge of the razor blade in a cutting direction, the base defining a wash through channel opening at an angle in the range of 30-70 degrees;   a blade cover unitarily molded to retain the razor blade in a sandwich with the base, wherein the sandwich held together by a plurality of deformable pins penetrating from the blade cover through the razor blade and base member.   
     
     
         2 . The shaving assembly of  claim 1  wherein a distance between the blade guard and the cutting edge is in the range of 0.7 to 0.8 millimeters. 
     
     
         3 . The shaving assembly of  claim 1  wherein the base member defines at least one pocket to retain a sacrificial electrode. 
     
     
         4 . The shaving assembly of  claim 3  further comprising a sacrificial electrode. 
     
     
         5 . The shaving assembly of  claim 4  wherein the sacrificial electrode is spherical. 
     
     
         6 . The shaving assembly of  claim 1  wherein the pressure deformable pins are molded as part of the unitarily molded cover. 
     
     
         7 . The shaving assembly of  claim 1  wherein the unitarily molded cover has molded as part thereof a pair of hard stops that reside at either end of the razor blade and precisely limit a position of the razor blade within the cover by imposing a definitive forward limit on a cutting edge of the razor blade. 
     
     
         8 . The shaving razor of  claim 1  wherein the angle of the wash through channel opening is in the range of 45-55 degrees. 
     
     
         9 . A shaving razor comprising:
 a unitarily molded bridge having a leading platform, a handle attachment mechanism and first and a second cross member each molded to extend substantially perpendicularly to the leading platform, each cross member defining a plurality of bores;   a plurality of base members, each base member unitarily molded and having a first peg and a second peg, the first peg and second peg residing in bores in the first and second cross member respectively;   a plurality of razor blades, one blade of the plurality residing on each base of the plurality of bases;   a plurality of blade covers each unitarily molded and engaging respective blades and retaining respective blades on respective bases;   wherein each base defines a wash through channel opening at an angle in the range of 30-70 degrees.   
     
     
         10 . The shaving razor of  claim 9  wherein each unitarily molded cover has molded as part thereof a plurality of pressure deformable pins that penetrate the respective blade and deform to retain the respective blade on the respective base. 
     
     
         11 . The shaving razor of  claim 9  wherein each base has molded as part thereof a blade guard that resides ahead of the respective blade after the shaving razor is assembled. 
     
     
         12 . The shaving razor of  claim 11  wherein a distance between each blade guard and an associated blade cutting edge is in the range of 0.7 to 0.8 millimeters. 
     
     
         13 . A method of making a shaving razor comprising:
 unitarily molding a base member having a first peg and a second peg and defining a wash through channel opening at an angle in the range of 30-70 degrees;   unitarily molding a blade covers, the blade cover having a plurality of pressure deformable pins and a hard stop at each longitudinal end of the blade cover;   inserting a razor blade against a pair of hard stops that reside at either end of the respective blade and precisely limit a position of the blade within the cover by imposing a definitive forward limit on a cutting edge of the respective blade;   overlaying one base onto the inserted blade; and   deforming the pressure deformable pins to retain the cover, blade and base as an assembly, wherein no heat processes are used to complete the assembly.   
     
     
         14 . The method of  claim 13  further comprising:
 unitarily molding a bridge having a leading platform, a handle attachment mechanism and first and a second cross member each molded to extend substantially perpendicularly to the leading platform, each cross member defining a plurality of bores; 
 inserting the first and second pegs in to bores in the first and second cross member respectively; and 
 deforming the pegs under pressure to retain the assembly on the bridge without heat processing. 
 
     
     
         15 . The method of  claim 13  wherein the base is molded to define at least one sacrificial electrode pocket further comprising:
 Inserting a sacrificial electrode into the at least one sacrificial electrode pocket prior to overlaying the base on the blade cover. 
 
     
     
         16 . The method of  claim 13  wherein unitarily molding the cover and the bridge comprises:
 imparting a texture in the range of 26-33 on the Verein Deutscher Ingenieure 3400 (VDI) scale on a skin contact surface of both the blade cover and the leading platform.