RAZOR CARTRIDGES

• US 20150090085A1
• Filed: 09/23/2014
• Published: 04/02/2015
• Est. Priority Date: 10/02/2013
• Status: Active Grant

• Current Assignee: Dorco Company Limited
• Original Assignee: ShaveLogic, Inc.
• Inventors: Griffin, John W., Provost, Craig A., Tucker, William E., Kohring, Douglas R.
• Granted Patent: US 10,421,204 B2
• Time in Patent Office: Days
• US Class Current: 83/13
• CPC Class Codes: B26B 21/222 with the blades moulded into, or attached to, a changeable unit B26B21/4006 takes precedence
• CPC Class Codes: B26B 21/4012 Housing details, e.g. for cartridges
• CPC Class Codes: B26B 21/4018 Guard elements
• CPC Class Codes: B26B 21/4068 Mounting devices; Manufacture of razors or cartridges B26B21/528 takes precedence
• CPC Class Codes: B26B 21/4075 Mounting devices
• CPC Class Codes: Y10T 29/49908 Joining by deforming
• CPC Class Codes: Y10T 83/04 Processes

Abstract

Replaceable shaving assemblies are disclosed that include a razor cartridge comprising: an elongated housing defining a central open area, and, adjacent each short edge of the housing, a clip-receiving aperture and a clip-receiving channel; a plurality of blades disposed within the open area of the housing, and a pair of clips, each clip having a first leg and a second leg, the first leg extending through the clip-receiving aperture and being bent against a lower surface of the housing, and the second leg being wrapped around the housing and seated in the clip-receiving channel. Shaving systems including such shaving assemblies are also disclosed, as are methods of using such shaving systems and methods of manufacturing these cartridges.

Claims

1. A razor cartridge comprising:

an elongated housing defining a central open area, and, adjacent each short edge of the housing, a clip-receiving aperture and a clip-receiving channel,

a plurality of blades disposed within the open area of the housing, and

a pair of clips, each clip having a first leg and a second leg, the first leg extending through the clip-receiving aperture and being bent against a lower surface of the housing, and the second leg being wrapped around the housing and seated in the clip-receiving channel.

2. The razor cartridge of claim 1, wherein each clip-receiving channel has an upper radiused surface.

3. The razor cartridge of claim 1, wherein each clip-receiving channel has a bottom surface that is recessed at least 0.05 mm below an adjacent horizontal surface of the housing.

4. The razor cartridge of claim 1, wherein the housing further comprises a plurality of blade positioning elements, extending upwardly from a floor of the housing in the central open area.

5. The razor cartridge of claim 4, wherein at least some of said blade positioning elements are disposed between the clip-receiving aperture and the clip-receiving channel on each side of the housing.

6. The razor cartridge of claim 1, wherein the blades are fixed blades.

7. The razor cartridge of claim 1, wherein the open area extends between the clip-receiving aperture and the clip-receiving channel on each side of the housing.

8. The razor cartridge of claim 7, wherein the clip-receiving channel defines a bottom surface, the profile of which is generally C-shaped.

9. The razor cartridge of claim 1 further comprising a cap extending along one edge of the housing and a guard extending along the opposite long edge, wherein the clip-receiving apertures are disposed adjacent to ends of the guard and the clip-receiving channels are disposed adjacent to ends of the cap.

10. The razor cartridge of claim 9 wherein a flat upper portion of each clip extends beyond the blade closest to the cap a distance substantially equal to the width of the cap, supported by an underlying portion of the housing.

11. The razor cartridge of claim 9, wherein the housing further comprises a guard bar and an edge of the clip-receiving aperture about which the clip is bent is substantially collinear with the long axis of the guard bar.

12. A shaving system comprising:

a handle, and

a razor cartridge mounted on a distal end of the handle, the razor cartridge comprising

an elongated housing defining a central open area, and, adjacent each short edge of the housing, a clip-receiving aperture and a clip-receiving channel,

a plurality of blades disposed within the open area of the housing, and

a pair of clips, each clip having a first leg and a second leg, the first leg extending through the clip-receiving aperture and being bent against a lower surface of the housing, and the second leg being wrapped around the housing and seated in the clip-receiving channel.

13. A method of shaving comprising contacting the skin with a razor cartridge comprising (a) an elongated housing defining a central open area, and, adjacent each short edge of the housing, a clip-receiving aperture and a clip-receiving channel, (b) a plurality of blades disposed within the open area of the housing, and (c) a pair of clips, each clip having a first leg and a second leg, the first leg extending through the clip-receiving aperture and being bent against a lower surface of the housing, and the second leg being wrapped around the housing and seated in the clip-receiving channel.

14. A method of manufacturing a razor cartridge comprising:

providing a housing having an central open area, a clip-receiving aperture and a clip-receiving channel;

positioning a plurality of blades within the central open area; and

retaining the blades within the central open area by mounting a pair of clips on the housing, each clip having a first leg and a second leg,

wherein mounting comprises (a) inserting the first leg through the clip-receiving aperture bending the first leg against a lower surface of the housing, and (b) wrapping the second leg around the housing such that the second leg is seated in the clip-receiving channel and bending the second leg against a lower surface of the housing.

15. The method of claim 14 wherein the second leg is being against the housing in a double bend configuration.

16. The method of claim 14 wherein the housing includes a cap and a guard, and the clip-receiving apertures are adjacent the guard and the clip-receiving channels are adjacent the cap.