# US 2014/0190462 A1 · Linear clutch for use with a bow and an arrow rest > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190462 A1 - Document ID: US20140190462A1 - Status: Published application - Kind: A1 - Application number: 13/735,589 - Filed: 2013-01-07 - Published: 2014-07-10 - Earliest claimed: 2013-01-07 - Inventors: Bahram Khoshnood - Web page: https://patentgrep.com/patent/US20140190462A1 ## CPC - F41B 5/1403: {Details of bows; (camera's on bows F41B5/1492)} - F41B 5/143: {Arrow rests or guides} - 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 A clutch for use with an arrow rest is mounted intermediate the arrow rest and the bow. The clutch includes a body having a first end configured to operatively connect to the arrow rest cord and a second end that receives a moveable shaft. The moveable shaft has a first end received in the body and a second end configured to connect to a bow. A spring is received on the shaft and positioned between the shaft and the clutch body. The clutch is moveable between a first position in which the shaft first end is proximate the clutch body first end to facilitate the movement of an arrow rest launcher arm out of an arrow support position, and a second position in which the shaft first end is proximate the clutch body second end to facilitate movement of the arrow rest launcher arm into an arrow support position. ## Claims ### Claim 1 A clutch for returning an arrow rest launcher arm to a support position, said clutch comprising: a. a body having a first end configured to operatively connect to an arrow rest cord and a second end configured to receive a moveable shaft; b. a shaft having a first end operatively received in the body second end and a second end configured to operatively connect to a bow; and c. a spring received on the shaft, wherein the clutch is moveable between: (1) a first position in which the shaft first end is proximate the clutch body first end to facilitate the movement of an arrow rest launcher arm out of an arrow support position when an arrow is fired from the bow, and (2) a second position in which the shaft first end is proximate the clutch body second end to facilitate movement of the arrow rest launcher arm into the arrow support position after a fletching on the fired arrow passes the arrow rest. ### Claim 2 (depends on 1) The clutch of claim 1, wherein a. the spring is received on the shaft intermediate the shaft first end and the clutch body second end; and b. the spring is configured to bias the shaft from the second position into the first position. ### Claim 3 (depends on 2) The clutch of claim 2, further comprising a piston coupled to the shaft first end. ### Claim 4 (depends on 3) The clutch of claim 3, further comprising a delay mechanism that substantially maintains the clutch in the first position for a period of time of about 0.001-0.05 seconds prior to the clutch moving from the first position into the second position. ### Claim 5 (depends on 4) The clutch of claim 4, wherein the delay mechanism further comprises: a. fluid maintained in the clutch body; b. a first cavity defined intermediate the piston and the clutch body first end and a second cavity defined intermediate the piston and the clutch body second end; and c. at least one hole formed through the piston so that the first cavity is in fluid communication with the second cavity by the at least one hole, wherein the at least one hole is configured to allow fluid to pass between the first cavity and the second cavity. ### Claim 6 (depends on 1) The clutch of claim 1, wherein the shaft second end is operatively coupled to a portion of the bow selected from a group consisting of: a. the bow string; b. the buss cable; and c. a limb of the bow. ### Claim 7 (depends on 6) The clutch of claim 6, wherein a. the shaft second end is operatively coupled to the buss cable; and b. when the arrow is fired from the bow, the clutch moves from the first position into the second position to allow the arrow rest launcher arm to move into the support position. ### Claim 8 (depends on 7) The clutch of claim 7, wherein when the arrow is drawn into a firing position on the bow, the clutch moves from the second position to the first position. ### Claim 9 (depends on 1) The clutch of claim 1, wherein a. the clutch body has a threaded bore formed in the second end; b. the shaft first end has a thread formed thereon; and c. when the shaft rotates with respect to the clutch body, the clutch moves from the first position into the second position via interaction of the threads. ### Claim 10 (depends on 4) The clutch of claim 4, wherein: a. the clutch further comprises a first cavity formed intermediate the piston and the clutch body first end, and a second cavity intermediate the piston and the clutch body second end; and b. the delay mechanism further comprises a valve formed in the clutch body first end, wherein the valve is in fluid communication with the first cavity and atmosphere, and when the arrow is fired from the bow, a vacuum, that forms in the first cavity, substantially delays movement of the piston in the clutch body for a period of time of about 0.001-0.05 seconds before the clutch moves from the first position into the second position. ### Claim 11 (depends on 10) The clutch of claim 10, wherein the period of time is no more than 0.02 seconds. ### Claim 12 (depends on 1) The clutch of claim 1, wherein when the clutch moves from the first position into the second position, a length of the clutch increases by about 0.25-2 inches. ### Claim 13 (depends on 1) The clutch of claim 1, further comprising an arrow rest operatively coupled to the clutch body first end. ### Claim 14 (depends on 1) The clutch of claim 1, further comprising a bow operatively coupled to the shaft second end. ### Claim 15 A clutch mechanism for allowing an arrow rest launcher arm to move from an arrow fired position into an arrow support position, said clutch comprising: a. a body having a first end configured to operatively connect to an arrow rest launcher arm and a second end configured to receive a shaft; b. a shaft having a first end operatively received in the body second end and a second end configured to operatively connect to a bow; and c. a delay mechanism, wherein (1) the body and shaft are moveable between: a first position in which the shaft first end is proximate the clutch body first end, a second position in which the shaft first end is proximate the clutch body second end, (2) the delay mechanism is configured to substantially maintain the body and shaft in the first position for a period of time of between 0.001-0.05 seconds prior to moving from the first position into the second position, (3) the body first end is operatively coupled to the arrow rest launcher arm and the shaft second end is operatively coupled to the bow. ### Claim 16 (depends on 15) The clutch mechanism of claim 15, wherein the shaft second end is operatively coupled to a buss cable of the bow. ### Claim 17 (depends on 15) The clutch mechanism of claim 15, wherein the clutch body first end is operatively coupled to a cord of the arrow rest. ### Claim 18 (depends on 15) The clutch mechanism of claim 15, the shaft first end further comprising a piston that is slidably received in the body second end. ### Claim 19 (depends on 18) The clutch mechanism of claim 18, wherein the delay mechanism further comprises a. at least one hole formed through the piston so that the first cavity is in fluid communication with the second cavity by the at least one hole; and b. fluid that is received in the body and that passes between the first cavity and the second cavity as the piston slides in the clutch body. ### Claim 20 (depends on 18) The clutch mechanism of claim 18, the delay mechanism further comprising a valve formed in the clutch body first end, wherein a cavity formed between the piston and the clutch body first end is in fluid communication with the atmosphere by the valve. ### Claim 21 (depends on 15) The clutch mechanism of claim 15, wherein a. when the body and the shaft are in the first position, the shaft first end is proximate the body first end, and b. when the body and the shaft are in the second position, the shaft first end is proximate the body second end. ### Claim 22 (depends on 21) The clutch mechanism of claim 21, wherein a. when the clutch is in the first position and an arrow is fired from the bow, the clutch facilitates movement of the arrow rest launcher arm from the arrow support position into the arrow fired position; and b. when the period of time substantially expires, the clutch moves into the second position thereby facilitating movement of the arrow rest launcher arm into the arrow support position. ### Claim 23 (depends on 15) The clutch mechanism of claim 15, wherein when the clutch moves from the first position into the second position, a length of the clutch increases by a sufficient amount to facilitate movement of the arrow rest launcher arm from the fired position into the arrow support position. ### Claim 24 (depends on 23) The clutch mechanism of claim 23, wherein the sufficient amount is approximately 0.75 inches. ### Claim 25 (depends on 15) The clutch of claim 15, further comprising an arrow rest operatively coupled to the clutch body first end. ### Claim 26 (depends on 15) The clutch of claim 15, further comprising a bow operatively coupled to the shaft second end. ### Claim 27 A clutch mechanism for allowing an arrow rest launcher arm to move from an arrow fired position into an arrow support position, said clutch comprising: a. a means for connecting a clutch to an arrow rest, the arrow rest having an arrow rest launcher arm moveable between an arrow support position and an arrow fired position; b. a means for connecting the clutch to a bow; c. a means for allowing the clutch to move between a first clutch position and a second clutch position; and d. a means for delaying the movement of the clutch from the first position to the second position, e. wherein (1) when the clutch is in the first clutch position and an arrow is fired from the bow, the clutch facilitates movement of the arrow rest launcher arm from the arrow support position into the arrow fired position, (2) the delay means substantially delays the clutch from moving from the first clutch position into the second clutch position for a period of time of between 0.001-0.05 seconds, and (3) when the clutch moves into the second clutch position after the arrow is fired from the bow, the clutch facilitates movement of the arrow rest launcher arm into the arrow support position.