Safety razors
AssigneeThe Gillette Company
InventorBernard Gilder
Life of this patent
Estimating the term…
Abstract
A guard of a safety razor blade unit has a lubricating strip (24) disposed in front of a backstop (23), and the edge of the backstop which contacts the skin during shaving is castellated to define channels (30) separated by lands (31). The channels (30) enable an effective layer of lubricant to remain on the skin until the blade positioned to the rear of the backstop contacts the skin in the course of a shaving stroke.
Claims20
A guard for a safety razor blade unit, comprising:
- a lubricating element for delivery of lubricant to the skin during shaving;
- and a backstop having an upper edge disposed to contact the skin during shaving in front of a blade edge and behind the lubricating strip, wherein the skin contacting edge of the backstop is interrupted by one or more channels to facilitate passage of lubricant to the blade during shaving.
A guard according to any one of the preceding claims, wherein the skin contacting edge surface of the backstop is defined by elastomeric material.
A guard according to any one of the preceding claims, wherein the lubricating element is located immediately in front of the backstop and has an upper surface disposed at a level intermediate the bottoms of the channels and the skin contacting edge surface of the backstop.
A guard for a safety razor blade unit, comprising a backstop having an upper edge disposed to contact the skin during shaving in front of a blade edge, wherein the skin contacting edge of the backstop is interrupted by one or more channels to facilitate passage of lubricant to the blade during shaving.
A blade unit in or for a safety razor, the blade unit comprising a frame supporting a plurality of blades with parallel edges, a cap structure disposed behind the blades and a guard as defined in any one of the preceding claims.
Dependencies are inferred from the claim text.