# US 2016/0258709 A1 · Crossbow Cocking Crank > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0258709 A1 - Document ID: US20160258709A1 - Status: Published application - Kind: A1 - Application number: 15/153,549 - Filed: 2016-05-12 - Published: 2016-09-08 - 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/US20160258709A1 ## 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 one-way mechanism arranged to prevent rotation of said shaft in a first rotational direction; and a release mechanism having a first position and a second position, said release mechanism moving along a length of said shaft between said first position and said second position, said release mechanism rotationally engaged with said shaft in said first position, said release mechanism not rotationally engaged with said shaft in said second position. ### Claim 2 (depends on 1) The crossbow crank of claim 1, wherein said one-way mechanism comprises a roller clutch. ### Claim 3 (depends on 1) The crossbow crank of claim 1, wherein said shaft comprises a first spool and a second spool oriented on opposite sides of the shaft. ### Claim 4 (depends on 1) The crossbow crank of claim 1, comprising a crank arm engaged to the shaft. ### Claim 5 (depends on 4) The crossbow crank of claim 4, comprising a moveable pin arranged to release said crank arm from said shaft. ### Claim 6 (depends on 1) The crossbow crank of claim 1, said release mechanism comprising a sleeve that surrounds said shaft. ### Claim 7 (depends on 6) The crossbow crank of claim 6, wherein said sleeve comprises a non-circular inner surface. ### Claim 8 (depends on 7) The crossbow crank of claim 7, wherein said shaft comprises a non-circular portion arranged to engage said non-circular inner surface of said sleeve. ### Claim 9 (depends on 1) The crossbow crank of claim 1, said release mechanism comprising a release lever that extends through said housing. ### Claim 10 (depends on 9) The crossbow crank of claim 9, wherein said release lever pivots with respect to said housing. ### Claim 11 (depends on 1) The crossbow crank of claim 1, said shaft comprising a first shaft, said crossbow crank further comprising a second shaft rotationally engaged to said first shaft. ### Claim 12 (depends on 11) The crossbow crank of claim 11, wherein said first shaft comprises a crank arm. ### Claim 13 (depends on 12) The crossbow crank of claim 12, wherein said second shaft comprises a spool. ### Claim 14 (depends on 11) The crossbow crank of claim 11, wherein said second shaft is arranged to rotate at a different speed from said first shaft. ### Claim 15 (depends on 11) The crossbow crank of claim 11, wherein said first shaft comprises a first gear, said second shaft comprises a second gear, and said first gear is engaged with said second gear. ### Claim 16 (depends on 15) The crossbow crank of claim 15, wherein said first gear and said second gear each comprise a plurality of teeth, said first gear having a different number of teeth than said second gear. ### Claim 17 (depends on 1) The crossbow crank of claim 1, comprising a retraction spring arranged to bias said shaft in a second rotational direction. ### Claim 18 (depends on 1) The crossbow crank of claim 1, comprising a biasing member arranged to bias said release mechanism to its first position. ### Claim 19 (depends on 1) The crossbow crank of claim 1, comprising a guide slot in said housing, a cocking string passing through said guide slot. ### Claim 20 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.