# US 11,298,845 B2 · Razor docking

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- Number: US 11,298,845 B2
- Document ID: US11298845B2
- Status: Granted
- Kind: B2
- Application number: 16/663,318
- Filed: 2019-10-24
- Published: 2020-02-20
- Granted: 2022-04-12
- Earliest claimed: 2016-11-23
- Assignees: Dollar Shave Club, Inc.
- Applicants: Personal Care Marketing and Research, Inc.
- Inventors: Shlomo Zucker
- Web page: https://patentgrep.com/patent/US11298845B2

## 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 cartridge frame with a front, a back, a cap side, a guard side, and two sides, the two sides connecting the cap side and the guard side, wherein the cartridge frame includes an open portion surrounded by the cap side, the guard side, and the two sides;
a receiver on the guard side of the back of the cartridge frame, the receiver including two side walls, with a centrally located tab between the two side walls, and with a concave curved back wall between the two side walls, wherein the two side walls, centrally located tab, and curved back wall are configured to receive a docking portion of a razor handle; and
at least one razor blade seated in the cartridge frame generally parallel to the guard side and cap side and generally perpendicular to the two sides of the cartridge frame and spanning the open portion of the cartridge frame,
wherein the receiver is mounted on the portion of the guard side of the back of the cartridge frame so that the receiver does not entirely cover the open portion of the cartridge frame,
wherein the razor handle includes a back end and a docking end, the docking end including a pushrod configured to traverse in and out of the razor handle, the pushrod mounted with a spring, the spring biased to push the pushrod out and away from the docking end of the razor handle, the pushrod including a limiter to limit a distance the pushrod traverses in and out of the razor handle, the pushrod mounted in the docking end of the razor handle proximate to a hook, the hook mounted in the docking end of the razor handle and configured to pivot;
a button mounted on the docking end of the handle, the button configured to rest at a first position, and configured to be moved into a second position, the button in communication with the hook and configured to pivot the hook when in the second position, and
wherein the hook is configured to latch over the centrally located cartridge tab.

### Claim 2 (depends on 1)

The razor system of claim 1 wherein the centrally located tab includes a ramp portion.

### Claim 3 (depends on 2)

The razor system of claim 2 wherein the frame back guard side includes a gap adjacent to the centrally located tab.

### Claim 4 (depends on 1)

The razor system of claim 1 wherein the receiver side walls and the receiver curved back wall are coated in a resilient plastic material.

### Claim 5 (depends on 4)

The razor system of claim 4 wherein the receiver back wall includes a cutout.

### Claim 6 (depends on 4)

The razor system of claim 4 wherein the receiver side walls and the receiver back wall are made, in part, of a resilient plastic material.

### Claim 7 (depends on 1)

The razor system of claim 1 wherein the pushrod has a shape configured to seat in the cartridge receiver.

### Claim 8 (depends on 1)

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

### Claim 9 (depends on 1)

The razor system of claim 1 wherein the button is mounted with a spring in the handle, the spring configured to be compacted when the button is in the second position.

### Claim 10 (depends on 1)

The razor system of claim 1 wherein the limiter is a guide slot.

### Claim 11 (depends on 1)

The razor system of claim 1 wherein the limiter is a step.