IP Library Granted Patent US 11,325,272
Granted Patent B2
US 11,325,272 · App. 16/632,125 · Granted May 10, 2022

Shaving systems

Inventors: William E. Tucker (Attleboro, MA); Dougals R. Kohring (Arrowsic, ME)
Assignee: SL IP COMPANY LLC
B26B21/521B26B21/225
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Quick Facts
Patent No.
US 11,325,272
App. No.
16/632,125
Granted
May 10, 2022
Kind
B2
Abstract

Shaving razors and shaving assemblies for wet shaving are disclosed, which include a blade unit pivotably mounted on arms extending from an interface element. The arms have features that allow them to flex, in some cases in a differential manner depending on the direction of applied forces.

Claims (42)

1. A shaving razor comprising:

a razor handle having a distal end, and

mounted on the distal end, a shaving assembly comprising:

a blade unit comprising a plurality of longitudinally extending blades; and

an interface element, configured to connect the blade unit to the handle;

wherein the blade unit and the interface element include cooperating elements that allow the blade unit to pivot with respect to the interface element, the cooperating elements including a pair of arms extending from the interface element towards the blade unit; and

wherein each of the arms includes a non-elastomeric post and an elastomeric outer layer in contact with the post, the elastomeric layer having a groove disposed on an inner surface of each arm, facing the other arm.

2. The razor of claim 1 , wherein the interface element is configured to removably connect the blade unit to the handle.

3. The razor of claim 1 wherein the elastomeric outer layer surrounds the post.

4. The razor of claim 1 wherein the post has an asymmetric cross-section.

5. The razor of claim 1 wherein the post has a symmetric cross-section.

6. The razor of claim 5 wherein the cross-section is circular.

7. The razor of claim 1 wherein the groove extends circumferentially around at least a portion of the arm.

8. The razor of claim 1 wherein the post includes a notch disposed along its length.

9. The razor of claim 1 wherein each arm further includes a finger extending from a distal end of the arm.

10. The razor of claim 1 wherein each arm further includes a shell bearing member extending from a distal end of the arm.

11. A replaceable shaving assembly comprising:

a blade unit comprising a plurality of longitudinally extending blades; and

an interface element, configured to removeably connect the blade unit to a handle;

wherein the blade unit and the interface element include cooperating elements that allow the blade unit to pivot with respect to the interface element, the cooperating elements including a pair of arms extending from the interface element towards the blade unit; and

wherein each of the arms includes a non-elastomeric post and an elastomeric outer layer in contact with the post, the elastomeric layer having a groove disposed on an inner surface of each arm, facing the other arm.

12. The shaving assembly of claim 11 wherein the elastomeric outer layer surrounds the post.

13. The shaving assembly of claim 11 wherein the post has an asymmetric cross-section.

14. The shaving assembly of claim 11 wherein the post has a symmetric cross-section.

15. The shaving assembly of claim 14 wherein the cross-section is circular.

16. The shaving assembly of claim 11 wherein the groove extends circumferentially around at least a portion of the arm.

17. The shaving assembly of claim 11 wherein the post includes a notch disposed along its length.

18. The shaving assembly of claim 11 wherein each arm further includes a finger extending from a distal end of the arm.

19. The shaving assembly of claim 11 wherein each arm further includes a shell bearing member extending from a distal end of the arm.

20. A replaceable shaving assembly comprising:

a blade unit comprising a plurality of longitudinally extending blades; and

an interface element, configured to removeably connect the blade unit to a handle;

wherein the blade unit and the interface element include cooperating elements that allow the blade unit to pivot with respect to the interface element, the cooperating elements including a pair of arms extending from the interface element towards the blade unit; and

wherein each of the arms includes a non-elastomeric post and an elastomeric outer layer in contact with the post, the elastomeric layer having a groove disposed on an outer surface of each arm, facing away from the other arm.

21. The shaving assembly of claim 20 wherein the elastomeric outer layer surrounds the post.

22. The shaving assembly of claim 20 wherein the post has an asymmetric cross-section.

23. The shaving assembly of claim 20 wherein the post has a symmetric cross-section.

24. The shaving assembly of claim 23 wherein the cross-section is circular.

25. The shaving assembly of claim 20 wherein the post includes a notch disposed along its length.

26. The shaving assembly of claim 20 wherein each arm further includes a finger extending from a distal end of the arm.

27. The shaving assembly of claim 20 wherein each arm further includes a shell bearing member extending from a distal end of the arm.

28. A shaving razor comprising: a razor handle having a distal end, and mounted on the distal end, a shaving assembly comprising: a blade unit comprising a plurality of longitudinally extending blades; and an interface element, configured to connect the blade unit to the handle; wherein the blade unit and the interface element include cooperating elements that allow the blade unit to pivot with respect to the interface element, the cooperating elements including a pair of arms extending from the interface element towards the blade unit; and wherein each of the arms includes a non-elastomeric post and an elastomeric outer layer in contact with the post, the elastomeric layer having a groove disposed on an outer surface of each arm, facing away from the other arm.

Assignments (10)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2025
From: SL SHAVECO LLC
To: NFS CAPITAL, LLC
Reel/Frame 072508/0353 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2023
From: STILETTO ASSIGNEE LLC
To: SL SHAVECO LLC
Reel/Frame 066058/0467 →
SECURITY INTEREST Recorded Sep 13, 2022
From: SHAVELOGIC, INC.; SL IP INTERMEDIATE LLC; SL IP COMPANY LLC
To: JEFFERIES CAPITAL SERVICES, LLC., AS COLLATERAL AGENT
Reel/Frame 061432/0425 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2021
From: SL IP INTERMEDIATE LLC
To: SL IP COMPANY LLC
Reel/Frame 057264/0659 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2021
From: SHAVELOGIC, INC.
To: SL IP INTERMEDIATE LLC
Reel/Frame 057264/0622 →
RELEASE OF SECURITY INTEREST Recorded Aug 16, 2021
From: NFS LEASING, INC.
To: SHAVELOGIC, INC.
Reel/Frame 057650/0499 →
SECURITY INTEREST Recorded Aug 13, 2021
From: SHAVELOGIC, INC.; SL IP INTERMEDIATE LLC; SL IP COMPANY LLC
To: U.S. BANK NATIONAL ASSOCIATION, AS THE COLLATERAL AGENT
Reel/Frame 057184/0588 →
SECURITY INTEREST Recorded Mar 2, 2020
From: SHAVELOGIC, INC.
To: NFS LEASING, INC.
Reel/Frame 052065/0926 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2020
From: TUCKER, WILLIAM E.; KOHRING, DOUGLAS R.
To: SHAVELOGIC, INC.
Reel/Frame 051547/0826 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE FOURTH INVENTOR PREVIOUSLY RECORDED ON REEL 050801 FRAME 0802. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jan 17, 2020
From: TUCKER, WILLIAM E.; PROVOST, CRAIG A.; GRIFFIN, JOHN W.; KOHRING, DOUGLAS R.; CANTRELL, AARON G.
To: SHAVELOGIC, INC.
Reel/Frame 051630/0817 →
Continuity (2)
Provisional Application 62535006 · Jul 20, 2017
Related Publication 20200223081A1 · Jul 16, 2020