IP Library › Granted Patent US 12,370,709
Granted Patent B2
US 12,370,709 · App. 17/379,374 · Granted Jul 29, 2025

Shaving device

Inventors: Ruairidh Robertson (Sandwich, MA); David Carpenter (Jaffrey, NH); Alan Kenneth Stratton (Milford, NH); George K. Bonnoitt, Jr. (Amherst, NH)
Assignee: INSIGNIA IP DEVELOPMENT COMPANY, LLC
B26B21/521B26B21/10B26B21/165B26B21/22B26B21/225B26B21/24B26B21/4062B26B21/44B26B21/52B26B21/523B26B21/4018B26B21/443
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Quick Facts
Patent No.
US 12,370,709
App. No.
17/379,374
Granted
Jul 29, 2025
Kind
B2
Abstract

A shaving device comprising a head assembly having a support member and a blade cartridge. The support member is configured to be detachably coupled to a handle. The blade cartridge has a first and a second face wherein at least one of the first or second faces comprises at least one razor blade. The blade cartridge is configured to be rotatably coupled to the support member about a pivot axis such that the blade cartridge is pivotable by a user to select one of the first or second faces.

Claims (52)

1. A shaving device comprising:

a handle;

a blade cartridge support member configured to extend from the handle, the blade cartridge support member comprising:

a first arm extending from a yoke, wherein a position of said first arm is fixed relative to the handle;

a second arm extending from said yoke; and

a first blade cartridge support member magnet coupled to said first arm;

a blade cartridge comprising:

a first face and a second face, wherein at least one of said first face or second face comprises at least one razor blade; and

a first lateral end and a second lateral end;

one or more pivot pins extending at least partially between said first arm and said second arm and configured to pivotably couple said blade cartridge to said first arm and said second arm of said support member such that said blade cartridge is configured to rotate about a pivot axis extending through said one or more pivot pins and through said blade cartridge; and

a first blade cartridge magnet coupled to said first lateral end, said first blade cartridge magnet configured to generate a magnetic force with said first blade cartridge support member magnet to urge said blade cartridge about said pivot axis back towards an initial starting position in response to a shaving force which urges said blade cartridge away from said initial starting position.

2. The shaving device of claim 1 , wherein said first blade cartridge support member magnet is disposed proximate a distal end of said first arm.

3. The shaving device of claim 1 , further comprising a second blade cartridge magnet coupled to said first lateral end.

4. The shaving device of claim 3 , wherein said first blade cartridge magnet and said second blade cartridge magnet are disposed on opposite sides of said pivot axis.

5. The shaving device of claim 4 , wherein said first blade cartridge magnet is configured to be generally aligned with said first blade cartridge support member magnet when said first face of blade cartridge is aligned in a first shaving position and wherein said second blade cartridge magnet is configured to be generally aligned with said first blade cartridge support member magnet when said second face of blade cartridge is aligned in a second shaving position.

6. The shaving device of claim 1 , further comprising a second blade cartridge support member magnet coupled to said first arm.

7. The shaving device of claim 1 , further comprising:

a second blade cartridge magnet coupled to said first lateral end; and

a second blade cartridge support member magnet coupled to said first arm.

8. The shaving device of claim 7 , wherein said first blade cartridge magnet and said second blade cartridge magnet are disposed on opposite sides of said pivot axis.

9. The shaving device of claim 8 , wherein said first blade cartridge magnet is configured to be generally aligned with said first blade cartridge support member magnet when said first face of blade cartridge is aligned in a first shaving position and wherein said second blade cartridge magnet is configured to be generally aligned with said first blade cartridge support member magnet when said second face of blade cartridge is aligned in a second shaving position.

10. The shaving device of claim 1 , further comprising:

a second blade cartridge support member magnet coupled to said second arm; and

a second blade cartridge magnet coupled to said second lateral end, said second blade cartridge magnet configured to generate a magnetic force with said second blade cartridge support member magnet to urge said blade cartridge towards an initial starting position.

11. The shaving device of claim 1 , wherein said first blade cartridge magnet is arranged disposed a distance from the pivot axis PA such that said first blade cartridge magnet and said first blade cartridge support magnet are generally aligned at generally a same distance from said pivot axis PA.

12. The shaving device of claim 1 , further comprising at least one blade cartridge rotation limiter configured to generally limit the rotation of said blade cartridge within a predefined range of rotation relative to said initial starting position.

13. The shaving device of claim 12 , wherein said at least one blade cartridge rotation limiter comprises a detent.

14. The shaving device of claim 1 , further comprising at least one blade cartridge rotation limiter configured to provide an indication to a user that another face of said blade cartridge is being selected.

15. The shaving device of claim 14 , wherein said at least one blade cartridge rotation limiter is configured to deform when rotating said blade cartridge about said pivot axis to select said another face.

16. A shaving device comprising:

a handle;

a first arm extending from said handle, wherein a position of said first arm is fixed relative to the handle;

a second arm extending from said handle;

a blade cartridge comprising a first face and a second face, wherein at least one of said first face or second face comprises at least one razor blade;

one or more pivot pins configured to extend along a pivot axis, said pivot axis passing through said first arm, said second arm, and a first lateral end and a second lateral end of said blade cartridge;

a first magnet coupled to said first arm and facing said first lateral end of said blade cartridge; and

a second magnet configured to rotate with said blade cartridge;

wherein said blade cartridge is configured to pivot about said pivot axis away from an initial starting position in response to a shaving force applied to said blade cartridge; and

wherein said first magnet and said second magnet are configured to generate a magnetic force which urges said blade cartridge back towards said initial starting position.

17. The shaving device of claim 16 , further comprising a second blade cartridge magnet coupled to said first lateral end.

18. The shaving device of claim 17 , wherein said first face and said second face of said blade cartridge each include at least one razor blade.

19. A shaving device comprising:

a handle;

a first arm extending from said handle, wherein a position of said first arm is fixed relative to the handle;

a second arm extending from said handle;

a first magnet and a second magnet coupled to said first arm, wherein a position of said first and said second magnet is fixed relative to the handle;

a blade cartridge comprising first and second opposite lateral ends and a first face including at least one razor blade, wherein said blade cartridge is configured to be coupled to said first and said second arm and to rotate about a pivot axis, said pivot axis extending through said first and said second lateral end and first and said second arm; and

a third magnet and a fourth magnet configured to rotate with said blade cartridge as said blade cartridge rotates about said pivot axis;

wherein said first magnet, said second magnet, said third magnet, and said fourth magnet are configured to generate a magnetic force to urge said blade cartridge back towards an initial starting position in response to a shaving force which urges said blade cartridge away from said initial starting position;

wherein said first and said second magnet are disposed on opposite sides of said pivot axis; and

wherein said third and said fourth magnet are disposed on opposite sides of said pivot axis.

20. The shaving device of claim 19 , further comprising at least one blade cartridge rotation limiter configured to generally limit the rotation of said blade cartridge within a predefined range of rotation relative to said initial starting position and provide an indication to a user that another face of said blade cartridge is being selected.

Assignments (3)
CHANGE OF NAME Recorded Apr 18, 2023
From: INSIGNIA IP HOLDING COMPANY, LLC
To: INSIGNIA IP DEVELOPMENT COMPANY, LLC
Reel/Frame 063363/0678 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2023
From: CARPENTER, DAVID; STRATTON, ALAN KENNETH; BONNOITT, GEORGE K, JR
To: ROBERTSON, RUAIRIDH
Reel/Frame 063056/0744 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2023
From: ROBERTSON, RUAIRIDH
To: INSIGNIA IP HOLDING COMPANY, LLC
Reel/Frame 063056/0990 →
Continuity (7)
Continuation 15413976 · Jan 24, 2017
Continuation 14977560 · Dec 21, 2015
Continuation In Part 14873857 · Oct 2, 2015
Continuation 14627282 · Feb 20, 2015
Provisional Application 62201551 · Aug 5, 2015
Provisional Application 62060700 · Oct 7, 2014
Related Publication 20220176578A1 · Jun 9, 2022
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