Shaving razor providing enhanced control during shaving
AssigneeThe Gillette Company
InventorsDaren Mark Howell, David John O'Callaghan, Andrew Martin Whittingham
Life of this patent
Estimating the term…
Abstract
A shaving razor that improves stability, corresponding user control and offers a closer shave is provided. The shaving razor can include a razor handle configuration that reduces the propensity for the shaving razor to roll in a user's hand and improves the maneuverability of the razor cartridge during shaving. In addition, the shaving razor can include a biasing pivoting member producing a progressively increasing return torque on the razor cartridge that forces the cartridge into flat contact with the skin thus improving glide and shaving closeness.
Claims16
A shaving razor providing enhanced control during shaving, the shaving razor comprising:
- a. a cartridge comprising:
- 1) a cartridge housing having a front edge portion, a rear edge portion and two opposing side edge portions extending from the front edge portion to the rear edge portion;
- 2) at least one shaving blade disposed between the front edge portion and the rear edge portion;
- 3) a cutting plane tangent to the rear edge portion and the front edge portion of the cartridge housing with a forward cutting direction toward the front edge portion of the cartridge;
- and
- 4) a point of equilibrium intersecting the cutting plane and balancing the forward portion and the rear portion of the cartridge;
- and
- b. a handle comprising:
- 1) a forward portion comprising a cartridge mounting structure;
- 2) a rear portion opposite the forward portion comprising a free end;
- 3) an elongate central portion disposed between the forward portion and the rear portion, the elongate central portion having an upper surface and a lower surface and a longitudinal axis disposed therebetween, wherein a projection of the longitudinal axis intersects the cutting plane at a point of intersection, wherein the point of intersection leads the point of equilibrium in the cutting direction by a distance of less than 10 mm.
A shaving razor providing enhanced stability and control during shaving, the shaving razor comprising:
- a. a cartridge comprising:
- 1) a cartridge housing having a front edge portion, a rear edge portion and two opposing side edge portions extending from the front edge portion to the rear edge portion;
- 2) a shaving blade disposed between the front edge portion and the rear edge portion;
- 3) a cutting plane tangent to the rear edge portion and the front edge portion of the cartridge housing with a forward cutting direction toward the front edge portion of the cartridge;
- and
- 4) a point of equilibrium intersecting the cutting plane and balancing the forward portion and the rear portion of the cartridge;
- and
- b. a handle comprising:
- 1) a forward portion comprising a cartridge mounting structure;
- 2) a rear portion opposite the forward portion comprising a free end;
- 3) an elongate central portion disposed between the forward portion and the rear portion, the elongate central portion having an upper surface and a lower surface and a longitudinal axis disposed therebetween, wherein a projection of the longitudinal axis intersects the cutting plane at a point of intersection, wherein the point of intersection leads the point of equilibrium in the cutting direction by a distance of less than 10 mm;
- 4) a handle load point on the upper surface of the elongate central portion proximate the forward portion;
- and
- 5) a handle roll axis between the point of equilibrium and the free end of the rear portion;
- wherein the handle roll axis intersects or is less than 5 mm below the handle load point.
Dependencies are inferred from the claim text.