Shaving unit and method of manufacture therefor
AssigneeThe Gillette Company
InventorsHenry Behrens, Chester F. Jacobson
Life of this patent
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Abstract
Shaving units as well as methods and apparatus for producing such units by using laser energy to weld a narrow elongated razor blade strip to a support member. In one form of the invention, a perforated welding mask made from a metal having high reflectance to the laser energy is employed to define the spacing of the welds joining the two members.
Claims16
A method for welding a steel blade strip having cutting edge means thereon to a metallic support member, said method comprising holding said strip in tension while positioning it and said member with respect to each other, positioning a welding mask so as to insure intimate contact between the strip and support member and subjecting the combination to a laser beam so that energy passes through the mask to weld the strip and support member together.
Apparatus for using laser energy to weld a steel blade strip having cutting edge means thereon to a metallic support member comprising a fixture base, means mounted thereon for positioning said metal strip and said support member with respect to each other, means for providing tension in said metal strip, and a welding mask adapted to insure intimate contact between said metal strip and said support member during welding.
A shaving unit comprising a support member, a blade member having a cutting edge thereon, and a series of welds disposed substantially throughout the length of said blade member and fixedly interconnecting said blade member and said support member, said blade member being under tension lengthwise thereof.
Dependencies are inferred from the claim text.