Granted Patent B2

US 12,528,215 · App. 18/106,316 · Granted Jan 20, 2026

Inventors: Ruairidh Robertson (Sandwich, MA); David Carpenter (Jaffrey, NH); Alan Kenneth Stratton (Milford, NH); George K. Bonnoitt (Amherst, NH)

Assignee: INSIGNIA IP DEVELOPMENT COMPANY, LLC

B26B21/521B26B21/10B26B21/22B26B21/225B26B21/24B26B21/4012B26B21/4062B26B21/443B26B21/52B26B21/523B26B21/16B26B21/20B26B21/28B26B21/4018

Abstract

Claims (50)

1 . A shaving device comprising:

a handle;

a support frame including a first arm and a second arm;

a blade cartridge configured to be secured to said support frame and to pivot about a pivot axis during shaving with said shaving device at a selected position;

a first arm magnet and a second arm magnet fixedly coupled to said first arm and said second arm, respectively;

a first pair of rotation magnets and a second pair of rotation magnets each including a first rotation magnet and a second rotation magnet disposed on opposite sides of said pivot axis;

wherein said first pair of rotation magnets and said second pair of rotation magnets are configured to pivot with said blade cartridge about said pivot axis during use of said shaving device and generate a magnet force with said first arm magnet and said second arm magnet that urges said blade cartridge to an initial starting position relative to said handle, the selected position including the initial starting position.

2 . The shaving device of claim 1 , wherein said blade cartridge is removably secured to said support frame.

3 . The shaving device of claim 1 , wherein said blade cartridge includes a first face and a second face each having a plurality of razor blades.

4 . The shaving device of claim 3 , wherein said first rotation magnet of said first pair of rotation magnets is aligned with said first arm magnet and said first rotation magnet of said second pair of rotation magnets is aligned with said second arm magnet when said blade cartridge is aligned in a first position relative to said handle; and

wherein said second rotation magnet of said first pair of rotation magnets is aligned with said first arm magnet and said first rotation magnet of said second pair of rotation magnets is aligned with said second arm magnet when said blade cartridge is aligned in a second position relative to said handle.

5 . The shaving device of claim 1 , wherein said magnet force includes an attractive magnetic force.

6 . A shaving device comprising:

a handle;

a support frame including a first arm and a second arm;

a blade cartridge configured to be secured to said support frame and to pivot about a pivot axis during shaving with said shaving device at a selected position;

a first arm magnet and a second arm magnet fixedly coupled to said first arm and said second arm, respectively;

a first pair of rotation magnets and a second pair of rotation magnets configured to pivot with said blade cartridge about said pivot axis and to face said first arm magnet and second arm magnet, respectively, each of said first pair of rotation magnets and said second pair of rotation magnets including a first rotation magnet and a second rotation magnet disposed on opposite sides of said pivot axis;

wherein said first pair of rotation magnets and said second pair of rotation magnets and said first arm magnet and said second arm magnet are configured to generate a magnet force that urges said blade cartridge to an initial starting position relative to said handle, the selected position including the initial starting position.

7 . The shaving device of claim 6 , wherein said blade cartridge is removably secured to said support frame.

8 . The shaving device of claim 6 , wherein said blade cartridge includes a first face and a second face each having a plurality of razor blades.

9 . The shaving device of claim 8 , wherein said first rotation magnets of said first pair of rotation magnets and said second pair of rotation magnets is aligned with said first arm magnet and said second arm magnet when said blade cartridge is aligned in a first position relative to said handle; and

wherein said second rotation magnets of said first pair of rotation magnets and said second pair of rotation magnets is aligned with said first arm magnet and said second arm magnet when said blade cartridge is aligned in a second position relative to said handle.

10 . The shaving device of claim 6 , wherein said magnet force includes an attractive magnetic force.

11 . A shaving device comprising:

a handle;

a support frame including a first arm and a second arm;

a blade cartridge configured to be secured to said support frame and to pivot about a pivot axis during shaving with said shaving device at a selected position, said blade cartridge including a first face and a second face each having a plurality of razor blades;

a first arm magnet fixedly coupled to said first arm;

a first rotation magnet and a second rotation magnet configured to pivot with said blade cartridge about said pivot axis during use of said shaving device;

wherein said first rotation magnet and said first arm magnet are configured to generate a first magnet force that urges said blade cartridge to a first initial starting position relative to said handle; and

wherein said second rotation magnet and said first arm magnet are configured to generate a second magnet force that urges said blade cartridge to a second initial starting position relative to said handle;

wherein the selected position includes the first initial starting position and the second initial starting position.

12 . The shaving device of claim 11 , wherein said blade cartridge is removably secured to said support frame.

13 . The shaving device of claim 11 , wherein said first magnet force includes an attractive magnetic force.

14 . A shaving device comprising:

a handle;

a support frame including a first arm and a second arm;

a blade cartridge configured to be secured to said support frame and to pivot about a pivot axis during shaving with said shaving device at a selected position;

a first arm magnet fixedly coupled to said first arm;

a first blade cartridge magnet configured to pivot with said blade cartridge about said pivot axis during use of said shaving device;

wherein said first blade cartridge magnet and said first arm magnet are configured to generate a magnet force that urges said blade cartridge to a first initial starting position relative to said handle, the selected position including the first initial starting position.

15 . The shaving device of claim 14 , wherein said blade cartridge is removably secured to said support frame.

16 . The shaving device of claim 14 , wherein said blade cartridge includes a plurality of razor blades on only a first face of said blade cartridge.

17 . The shaving device of claim 14 , wherein said blade cartridge includes a first face and a second face each having a plurality of razor blades.

18 . The shaving device of claim 17 , further comprising a second blade cartridge magnet configured to pivot with said blade cartridge about said pivot axis, said first blade cartridge magnet and said second blade cartridge magnet disposed on opposite sides of said pivot axis;

wherein said first blade cartridge magnet is aligned with said first arm magnet when said blade cartridge is aligned in said first initial starting position relative to said handle; and

wherein said second blade cartridge magnet is aligned with said first arm magnet when said blade cartridge is aligned in a second initial starting position relative to said handle;

said first initial starting position and said second initial starting position corresponding to use positions associated with said first face and said second face, respectively.

19 . The shaving device of claim 14 , wherein said magnet force includes an attractive magnetic force.

Assignments (3)

Continuity (13)

References Cited (138)