IP Library Granted Patent US 10,272,580
Granted Patent B2
US 10,272,580 · App. 15/805,486 · Granted Apr 30, 2019

Pivoting razors

Inventors: John W. Griffin (Moultonborough, NH); Craig A. Provost (Boston, MA); William E. Tucker (Attleboro, MA)
Assignee: SHAVELOGIC, INC.
B26B21/521B26B21/225B26B21/4081Y10T83/04
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Quick Facts
Patent No.
US 10,272,580
App. No.
15/805,486
Granted
Apr 30, 2019
Kind
B2
Abstract

Replaceable shaving assemblies are disclosed that include a blade unit, an interface element configured to removably connect the blade unit to a handle, on which the blade unit is pivotably mounted, and an elastomeric element disposed between the blade unit and interface element. Shaving systems including such shaving assemblies are also disclosed, as are methods of using such shaving systems.

Claims (32)

1. A replaceable shaving assembly comprising:

a blade unit;

a handle interface element configured to removably connect the blade unit to a handle, on which the blade unit is pivotably mounted;

a blade unit interface element interposed between the handle interface element and the blade unit; and

an elastomeric return element carried by the blade unit interface element.

2. The replaceable shaving assembly of claim 1 wherein the blade unit interface element snaps onto the blade unit.

3. The replaceable shaving assembly of claim 1 wherein the blade unit interface element and blade unit include engaging features.

4. The replaceable shaving assembly of claim 3 wherein the blade unit interface element includes blade unit interface protrusions which are configured to interface with corresponding blade unit interface receiving bores on the blade unit.

5. The replaceable shaving assembly of claim 1 wherein the handle interface element includes handle interface protrusions that are received by corresponding handle interface receiving bores on the blade unit.

6. The replaceable shaving assembly of claim 5 wherein a portion of the elastomeric return element extends over the handle interface unit protrusions so that tension is generated within the elastomeric element.

7. The replaceable shaving assembly of claim 5 wherein each of the handle interface protrusions includes a portion extending from the handle interface unit generally perpendicular to a length of the blade unit, and the elastomeric return element comprises a strip that extends across the portions and along the length of the blade unit.

8. The replaceable shaving assembly of claim 7 wherein each of the handle interface protrusions further includes a curved portion extending to a distal finger that engages the corresponding bore on the blade unit.

9. The shaving system of claim 1 wherein the handle interface element includes handle interface protrusions that are received by corresponding handle interface receiving bores on the blade unit.

10. The shaving system of claim 9 wherein a portion of the elastomeric return element extends over the handle interface unit protrusions so that tension is generated within the elastomeric element.

11. The shaving system of claim 9 wherein each of the handle interface protrusions includes a portion extending from the handle interface unit generally perpendicular to a length of the blade unit, and the elastomeric return element comprises a strip that extends across the portions and along the length of the blade unit.

12. The shaving system of claim 11 wherein each of the handle interface protrusions further includes a curved portion extending to a distal finger that engages the corresponding bore on the blade unit.

13. A shaving system comprising:

a handle;

a blade unit;

a handle interface element configured to connect the blade unit to the handle, on which the blade unit is pivotably mounted;

a blade unit interface element interposed between the handle interface element and the blade unit; and

an elastomeric return element carried by the blade unit interface element.

14. The shaving system of claim 13 wherein the blade unit interface element snaps onto the blade unit.

15. The shaving system of claim 13 wherein the blade unit interface element and blade unit include engaging features.

16. The shaving system of claim 15 wherein the blade unit interface element includes blade unit interface protrusions which are configured to interface with corresponding blade unit interface receiving bores on the blade unit.

17. A method of manufacturing a shaving assembly for a wet shaving razor, the method comprising:

providing a blade unit;

attaching to the blade unit a blade unit interface element that carries an elastomeric return element; and

mounting a handle interface element, configured to connect the blade unit to a handle, on the blade unit interface element.

18. The method of claim 17 wherein the blade unit interface element and attached blade unit are pivotably mounted on the handle interface element.

19. The method of claim 17 wherein attaching comprises snapping the blade unit interface element onto a housing of the blade unit.

20. The method of claim 19 wherein the blade unit interface element includes blade unit interface protrusions which are configured to interface with corresponding blade unit interface receiving bores on the blade unit.

Assignments (13)
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: HOLLAND FAMILY INVESTMENT COMPANY, LLC
To: SHAVELOGIC, INC.
Reel/Frame 057650/0335 →
RELEASE OF SECURITY INTEREST Recorded Aug 16, 2021
From: AUSTERRA STABLE GROWTH FUND, LP
To: SHAVELOGIC, INC.
Reel/Frame 057650/0361 →
RELEASE OF SECURITY INTEREST Recorded Aug 16, 2021
From: MARK C. HOLLAND
To: SHAVELOGIC, INC.
Reel/Frame 057650/0484 →
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 Apr 2, 2020
From: SHAVELOGIC, INC.
To: AUSTERRA STABLE GROWTH FUND, LP; HOLLAND FAMILY INVESTMENT COMPANY, LLC; HOLLAND, MARK C
Reel/Frame 052293/0469 →
SECURITY INTEREST Recorded Mar 2, 2020
From: SHAVELOGIC, INC.
To: NFS LEASING, INC.
Reel/Frame 052065/0926 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2017
From: GRIFFIN, JOHN W.; PROVOST, CRAIG A.; TUCKER, WILLIAM E.
To: SHAVELOGIC, INC.
Reel/Frame 044392/0112 →
Continuity (4)
Continuation 15044028 · Feb 15, 2016
Continuation 13929644 · Jun 27, 2013
Provisional Application 61675930 · Jul 26, 2012
Related Publication 20180071933A1 · Mar 15, 2018
Cited By (1)
US 12,220,828