IP Library Granted Patent US 10,894,331
Granted Patent B2
US 10,894,331 · App. 16/835,670 · Granted Jan 19, 2021

Magnetic attachment for shaving cartridge

Inventors: Robert A. Wilson (Dallas, TX); Craig A. Provost (Newport Beach, CA); John W. Griffin (Moultonborough, NH)
Assignee: ShaveLogic, Inc.
B26B21/521B26B21/14B26B21/225Y10T83/9459
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Quick Facts
Patent No.
US 10,894,331
App. No.
16/835,670
Granted
Jan 19, 2021
Kind
B2
Abstract

Shaving systems are disclosed that include a replaceable shaving assembly and a cartridge connecting structure for connecting the shaving assembly to a handle. In preferred implementations, the cartridge connecting structure has a magnetic portion configured to help draw the cartridge onto the handle and retain the cartridge in place when the razor is not in contact with the skin, and a mechanical engagement that provides the necessary retention forces required to keep the system intact during shaving.

Claims (11)

1. A shaving system comprising:

a handle having a distal end and a proximal end,

a shaving assembly mounted on the handle, and including an interface element configured to provide a mechanical engagement between the shaving assembly and handle,

wherein the interface element includes an appendage protruding therefrom, and the distal end of the handle includes a receiving portion in form of a hollow, central cavity configured to receive the appendage, and

a magnetic portion configured to provide a magnetic force between the handle and shaving assembly sufficient to retain the shaving assembly on the handle between shaving strokes;

wherein the magnetic portion comprises at least one magnet disposed in the hollow, central cavity of the receiving portion, and a ferrous material disposed in a recess at an end of the appendage, and

wherein the appendage is substantially stationary relative to the receiving portion during shaving.

2. The shaving system of claim 1 wherein the interface element and a distal portion of the handle are configured to retain the shaving assembly on the handle when a shaving surface of the shaving assembly is in contact with a user's skin.

3. The shaving system of claim 1 wherein the shaving assembly includes a blade unit that is mounted on the handle with a pivoting connection.

4. The shaving system of claim 1 wherein the pivoting connection between the handle and blade unit is configured to allow a user to rotate the handle between approximately 15 to 105 degrees from a reference skin plane during shaving.

5. The shaving system of claim 1 wherein the interface element includes tabs configured to be grasped by a user to facilitate removal of the shaving assembly from the handle.

Assignments (7)
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 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 31, 2020
From: WILSON, ROBERT A.; PROVOST, CRAIG A.; GRIFFIN, JOHN W.
To: SHAVELOGIC, INC.
Reel/Frame 052271/0785 →
Continuity (6)
Continuation 16251874 · Jan 18, 2019
Continuation 14270792 · May 6, 2014
Continuation 13938638 · Jul 10, 2013
Continuation PCTUS2013042038 · May 21, 2013
Provisional Application 61651732 · May 25, 2012
Related Publication 20200246991A1 · Aug 6, 2020