# US 12,214,515 B2 · Razor cartridge

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- Number: US 12,214,515 B2
- Document ID: US12214515B2
- Status: Granted
- Kind: B2
- Application number: 18/227,253
- Filed: 2023-07-27
- Published: 2023-11-16
- Granted: 2025-02-04
- Earliest claimed: 2016-11-23
- Assignees: Dollar Shave Club, Inc.
- Applicants: Dollar Shave Club, Inc.
- Inventors: Shlomo Zucker
- Web page: https://patentgrep.com/patent/US12214515B2

## CPC

- B26B 21/521: {Connection details, e.g. connection to razor heads}
- B26B 21/225: {the changeable unit being resiliently mounted on the handle}
- B26B 21/4062: {Actuating members, e.g. switches or control knobs; Adjustments}
- B26B 21/443: {Lubricating strips attached to the razor head}
- B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H)

## Abstract

A shaving razor system includes a razor handle that docks with a razor cartridge. The handle is configured to dock with the razor cartridge using a single hook configured to mate with a cartridge tab. A central pushrod is mounted with a spring into the handle and is configured to exert a pushing force on the mounted cartridge. To eject the cartridge, the single hook may be pushed to pivot to the side of the cartridge tab, and thereby release the razor cartridge by ejecting it with the spring loaded pushrod.

## Claims

### Claim 1

A razor system, comprising:
a razor handle elongated body,
wherein the razor handle elongated body includes a back end opposite a docking end;
a central pushrod mounted in the docking end of the razor handle elongated body,
wherein the central pushrod is generally double T-shaped with two shorter bars perpendicular to a longer bar, the longer bar of the generally double T-shaped central pushrod aligning with the razor handle elongated body and slidably mounted into the docking end;
wherein a first bar of the central pushrod shorter bars, perpendicular to the longer bar, is configured outside the docking end and a second bar of the central pushrod shorter bars is configured inside the docking end;
one central hook arm pivotally mounted to the razor handle body at the docking end, within and proximal to the generally double T-shaped central pushrod,
wherein the central hook arm includes a pivot end and a hook end, the hook end including a hook;
a central hook arm axis about which the central hook arm is configured to pivot relative to the elongated razor handle body.

### Claim 2 (depends on 1)

The razor system of claim 1 wherein the central pushrod is spring mounted in the razor handle elongated body.

### Claim 3 (depends on 1)

The razor system of claim 1 wherein the central hook arm is flexible.

### Claim 4 (depends on 1)

The razor system of claim 1 wherein the razor handle includes a button mounted at the docking end that actuates the pivot of the central hook arm.

### Claim 5 (depends on 1)

The razor system of claim 1 wherein the central hook arm is made of flat metal.

### Claim 6 (depends on 1)

The razor system of claim 1 further comprising a cartridge, the cartridge including a generally rectangular frame supporting at least one razor blade, the cartridge frame including a docking portion on a back of the cartridge, the docking portion configured to mate with the one central hook arm and the central pushrod bar.

### Claim 7 (depends on 6)

The razor system of claim 6 wherein the docking portion of the cartridge frame includes a ramp and tab, the ramp and tab configured to mate with the central hook arm of the handle.

### Claim 8 (depends on 7)

The razor system of claim 7 wherein the cartridge docking portion includes a gap adjacent to the ramp and tab, in which the central hook arm is configured to pivot into the gap, thereby releasing the ramp and tab.

### Claim 9 (depends on 7)

The razor system of claim 7 wherein the central ramp and tab includes a fulcrum point at which the central hook arm mates, and about which a force would be imparted on the cartridge when in use,
wherein a closest distance between the fulcrum point of the central ramp and tab and a shaving plane across a front of the cartridge is less than 1 mm.