# US 10,502,518 B2 · Crossbow cocking crank

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- Number: US 10,502,518 B2
- Document ID: US10502518B2
- Status: Granted
- Kind: B2
- Application number: 15/153,549
- Filed: 2016-05-12
- Published: 2016-09-08
- Granted: 2019-12-10
- Earliest claimed: 2013-08-09
- Assignees: Mcp IP, LLC
- Applicants: Mcp IP, LLC
- Inventors: Mathew A. McPherson; Mark Hayes; Jeffrey A. Ozanne; Tom Koshollek
- Web page: https://patentgrep.com/patent/US10502518B2

## CPC

- F41B 5/1469: {Bow-string drawing or releasing devices (F41B5/1473 takes precedence)}
- F41B 5/123: {Compound crossbows}
- F41B: WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR (projectiles for fishing, e.g. fish-spears, A01K81/00; sports implements for throwing A63B65/00, e.g. boomerangs A63B65/08; stationary apparatus for projecting sports balls, e.g. tennis balls, A63B69/40; throwing or slinging toys A63H33/18; knives, axes B26B; projectiles or missiles other than those incorporating springs as projecting means F42B6/00)

## Abstract

In some embodiments, a crossbow crank comprises a housing and a shaft rotatable with respect to the housing. A one-way mechanism is arranged to prevent rotation of the shaft in a first rotational direction, but allow rotation in a second direction. A release mechanism is arranged to disengage the one-way mechanism from the shaft. The release mechanism has a first position and a second position, wherein the release mechanism moves along a length of the shaft between the first position and the second position.

## Claims

### Claim 1

A crossbow crank comprising:
a housing;
a shaft rotatable with respect to said housing;
a roller clutch mechanism arranged to allow rotation of said shaft in one rotational direction; and
a release mechanism arranged to disengage said roller clutch from said shaft, the release mechanism comprising a sleeve surrounding the shaft, the roller clutch surrounding the sleeve.

### Claim 2 (depends on 1)

The crossbow crank of claim 1, wherein the crossbow crank does not include a pawl.

### Claim 3 (depends on 1)

The crossbow crank of claim 1, wherein the roller clutch surrounds the shaft and the housing surrounds the roller clutch.

### Claim 4

A crossbow crank comprising:
a housing;
a shaft rotatable with respect to said housing;
a one-way mechanism arranged to prevent rotation of said shaft in a first rotational direction, the one-way mechanism surrounding the shaft, the one-way mechanism engaged with the housing; and
a release mechanism arranged to disengage the one-way mechanism from the shaft, the release mechanism comprising a sleeve surrounding the shaft, the one-way mechanism surrounding the sleeve.

### Claim 5 (depends on 4)

The crossbow crank of claim 4, wherein the crossbow crank does not include a pawl.

### Claim 6 (depends on 4)

The crossbow crank of claim 4, wherein the one-way mechanism comprises a roller clutch.

### Claim 7 (depends on 4)

The crossbow crank of claim 4, comprising a crank arm engaged to the shaft.

### Claim 8 (depends on 7)

The crossbow crank of claim 7, comprising a moveable pin arranged to release said crank arm from said shaft.

### Claim 9 (depends on 4)

The crossbow crank of claim 4, wherein the release mechanism pivots with respect to said housing.

### Claim 10 (depends on 4)

The crossbow crank of claim 4, comprising a biasing member arranged to bias said release mechanism to an engaged position.

### Claim 11 (depends on 4)

The crossbow crank of claim 4, wherein said shaft comprises a first spool and a second spool oriented on opposite sides of the shaft.

### Claim 12 (depends on 4)

The crossbow crank of claim 4, said release mechanism comprising a sleeve that surrounds said shaft.

### Claim 13 (depends on 12)

The crossbow crank of claim 12, wherein said sleeve comprises a non-circular inner surface.

### Claim 14 (depends on 4)

The crossbow crank of claim 4, the sleeve arranged to move along a length of the shaft.

### Claim 15

A crossbow crank comprising:
a housing;
a shaft rotatable with respect to said housing;
a one-way mechanism arranged to prevent rotation of said shaft in a first rotational direction, the one-way mechanism surrounding the shaft, the one-way mechanism engaged with the housing;
a release mechanism arranged to disengage the one-way mechanism from the shaft; and
a retraction spring arranged to bias said shaft in a second rotational direction, the retraction spring comprising a strip of material wrapped around the shaft.