Safety razors
AssigneeThe Gillette Company
InventorsBernard Gilder, Paul Warrick
Life of this patent
Estimating the term…
Abstract
A safety razor blade unit has a guard structure (5) which includes a strip (10) of elastomeric material e.g. with projections such as fins (12) or tubes (35), and a backstop (13) disposed between the elastomeric strip (10) and the edge (20) of a leading blade (2), the backstop including a rigid wall (15) integrally moulded with the blade unit housing (1) and a resiliently deformable portion (17) integral with the elastomeric strip (10) and adapted to yield under forces experienced during shaving by being compressed against the rigid wall (15) or flexing downwardly.
Claims16
A guard for a safety razor blade unit, said unit having a rigid plastic housing to provide support for at least one blade and a cap structure, said guard comprising:
- an elastomeric strip disposed on said housing;
- and
- a backstop disposed on said housing between said elastomeric strip and a leading blade edge, said backstop including a rigid portion extending upwardly from said housing and a deformable portion capable of yielding resiliently under forces experienced during shaving;
- and wherein
- said deformable portion is supported against displacement in a direction towards the leading blade edge by said rigid portion of the backstop;
- and
- said deformable portion includes a lip extending over the top of said upwardly extending rigid portion, said lip being yieldable under the forces experienced during shaving to reduce the height of said backstop.
A guard for a safety razor blade unit, said unit having a rigid plastic housing to provide support for at least one blade and a cap structure, said guard comprising:
- an elastomeric strip disposed on said housing;
- and
- a backstop disposed on said housing between said elastomeric strip and a leading blade edge, said backstop including a rigid portion and a deformable portion capable of yielding resiliently under forces experienced during shaving;
- and wherein
- said rigid portion is a wall having a front face and a top face adjoining the front face, the lip of the deformable portion extending over the top face and being connected to the elastomeric strip by a part extending upwardly from said elastomeric strip and in contact with at least an upper portion of the front face of the rigid wall;
- and
- said deformable portion includes a lip extending over the top of said rigid portion, said lip being yieldable under the forces experienced during shaving to reduce the height of said backstop.
Dependencies are inferred from the claim text.