IP Library Granted Patent US 11,123,889
Granted Patent B2
US 11,123,889 · App. 16/658,760 · Granted Sep 21, 2021

Shaving system

Inventors: Craig A. Provost (Newport Beach, CA); William E. Tucker (Plymouth, MA); John W. Griffin (Moultonboro, NH)
Assignee: SL IP COMPANY LLC
B26B21/4012A45D24/36B26B21/40B26B21/4081
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Quick Facts
Patent No.
US 11,123,889
App. No.
16/658,760
Granted
Sep 21, 2021
Kind
B2
Abstract

Shaving systems are disclosed that include (a) a handle having a distal end and a proximal end; and (b) a shaving assembly, disposed at the distal end of the handle, the shaving assembly including a blade unit comprising a plurality of blades disposed in a housing, the housing having a front cutting side and an opposite rear side and a plurality of measurement elements on a trailing edge of the rear side.

Claims (24)

1. A blade unit for a shaving assembly, the blade unit comprising

a housing having a front cutting side and an opposite rear non-cutting side, and a plurality of measurement elements on a trailing edge of the rear non-cutting side of the housing, the measurement elements being generally triangular or arrow-shaped, with one of the angles of the triangle or a point of the arrow pointing towards the trailing edge and between hash marks,

a plurality of blades disposed in the housing, with cutting edges of the blades disposed on the front cutting side, and

a lubricating strip disposed adjacent the trailing edge on the front cutting side of the housing,

wherein the measurement elements comprise openings positioned facing directly away from the front cutting side so that portions of the lubricating strip are visible through the openings during shaving, and wherein the housing is a first color and the lubricating strip is a second, different color.

2. The blade unit of claim 1 , wherein the measurement elements are regularly spaced along the trailing edge of the blade unit from a first lateral side of the housing to a second lateral side of the housing.

3. A shaving assembly comprising:

a blade unit comprising

a housing having a front cutting side and an opposite rear non-cutting side, and a plurality of measurement elements on a trailing edge of the rear non-cutting side of the housing,

a plurality of blades disposed in the housing, with cutting edges of the blades disposed on the front cutting side, the measurement elements being generally triangular or arrow-shaped, with one of the angles of the triangle or a point of the arrow pointing towards the trailing edge and between hash marks, and

a lubricating strip disposed adjacent the trailing edge on the front cutting side of the housing,

 wherein the measurement elements comprise openings positioned facing directly away from the front cutting side so that portions of the lubricating strip are visible through the openings during shaving, and wherein the housing is a first color and the lubricating strip is a second, different color; and

an interface element on which the blade unit is pivotably mounted, the interface element being configured for removable attachment to a handle.

4. A shaving system comprising:

a handle having a distal end and a proximal end; and

a shaving assembly, disposed at the distal end of the handle,

the shaving assembly including a blade unit comprising

a housing having a front cutting side and an opposite rear non-cutting side, and a plurality of measurement elements on a trailing edge of the rear non-cutting side of the housing,

 a plurality of blades disposed in the housing, with the length of each of the blades disposed perpendicular to the length of the handle, and cutting edges of the blades disposed on the front cutting side, the measurement elements being generally triangular or arrow-shaped, with one of the angles of the triangle or a point of the arrow pointing towards the trailing edge and between hash marks, and

a lubricating strip disposed adjacent the trailing edge on the front cutting side of the housing,

wherein the measurement elements comprise openings positioned facing directly away from the front cutting side so that portions of the lubricating strip are visible through the openings during shaving, and wherein the housing is a first color and the lubricating strip is a second, different color.

5. The shaving system of claim 4 , wherein the measurement elements are regularly spaced along the trailing edge of the blade unit from a first lateral side of the housing to a second lateral side of the housing.

6. The shaving system of claim 4 wherein the shaving assembly is removably connected to the handle by an interface element.

7. The shaving system of claim 6 wherein a pivoting connection is provided between the blade unit and the interface element.

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 Oct 21, 2019
From: GRIFFIN, JOHN W.; PROVOST, CRAIG A.; TUCKER, WILLIAM E.
To: SHAVELOGIC, INC.
Reel/Frame 050779/0656 →
Continuity (4)
Continuation 14948688 · Nov 23, 2015
Continuation PCTUS2014043312 · Jun 20, 2014
Provisional Application 61840267 · Jun 27, 2013
Related Publication 20200047360A1 · Feb 13, 2020