Patent US3783852A successfully refreshed from Google Patents.
US3783852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic type arrow projecting gun
Assignee: Individual
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Filing: 1972-09-28
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Granted: 1974-01-08
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Expires: 1992-09-28
Abstract
Abstract A cocking mechanism for a crossbow type weapon includes a cocking lever pivotally connected to the outer end of the weapon and to a trigger assembly slideable along the length of the weapon. A U-shaped portion of the carriage assembly automatically engages and holds the loop type bowstring of the bow and forces it as the carriage moves, the bowstring being tensioned in response to the movement of the cocking lever from a position underlying and perpendicular to the weapon to a position substantially adjacent to the weapon and received between a trackway which guides a projectile. The U-shaped member is spring biased to an out of bowstring engaging position, and the U-shaped member is pivoted into an upright position to receive the bowstring when an extension of the U-shaped member engages the bowstring when the carriage is moved forwardly by the action of the cocking lever. A trigger holds the U-shaped member in a bowstring engaging position.
Inventors
- 👤 R Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:06
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
505 words
A spring powered arrow gun of a modified crossbow type, comprising in combination: a stock having spaced shoulder engaging and hand-grip portions; a pair of spaced parallel members, rigidly secured to said stock and extending forwardly thereof to define a trackway; a cross member secured to the outer ends of said trackway and having a first pair of pulleys, one pulley of said pair of pulleys being secured to one end of said cross member and the other pulley of said pair of pulleys being positioned at the other end of said cross member, said pulleys being positioned for rotation on axes parallel to each other and positioned on opposite sides of said trackway; a second pair of pulleys spaced inwardly of said first pair of pulleys and said second pair of pulleys being mounted for rotation on axes that are parallel to each other and are spaced inwardly from and parallel to the axes of said first pair of pulleys; a power train at least a portion of which is a resilient elastically deformable member arranged in the form of a closed loop, substantially anchored on a rearwardly facing portion of said stock and extending on opposite sides of said stock forwardly along the outer surfaces of said trackway and then over said second pair of pulleys and then outwardly and over said first pair of pulleys with the last portion of said train extending between said first pair of pulleys is transverse to and overlies the upper surface of said trackway for permitting automatic engagement of the forward side of said last portion by said power train when said carriage is moved forwardly on said trackway; a trigger assembly for engaging and releasing said power train, said assembly including a carriage a trigger pivotally mounted on the carriage, said carriage being slideable along said trackway and including means extendable upwardly from said carriage to terminate above the upper surface of said trackway when said carriage is moved to its forward most position for automatically engaging the forward side of said last portion of said power train when said carriage is moved rearwardly on said trackway; a cocking arm pivotally connected to the outer end of said trackway and pivotal from a first position extending substantially at right angles downwardly of said trackway to a second position parallel to and received between the members of said trackway; and a link means for pivotally connecting at one end at substantially the midpoint of said cocking lever and at the other end with said slidable carriage, whereby when said cocking lever is moved from said second to said first position and back to said second position, the last portion of said power train is engaged by said means extendable from the carriage and as said last mentioned means moves rearwardly on said trackway against the biasing force of said resilient portion of said train, said means extendable upwardly from the carriage thereafter functioning to suddenly release said power train in response to actuation of said trigger.
Claim 2
Dependent Claim
505 words
A spring powered arrow gun of a modified crossbow type, comprising in combination: a stock having spaced shoulder engaging and hand-grip portions; a pair of spaced parallel members, rigidly secured to said stock and extending forwardly thereof to define a trackway; a cross member secured to the outer ends of said trackway and having a first pair of pulleys, one pulley of said pair of pulleys being secured to one end of said cross member and the other pulley of said pair of pulleys being positioned at the other end of said cross member, said pulleys being positioned for rotation on axes parallel to each other and positioned on opposite sides of said trackway; a second pair of pulleys spaced inwardly of said first pair of pulleys and said second pair of pulleys being mounted for rotation on axes that are parallel to each other and are spaced inwardly from and parallel to the axes of said first pair of pulleys; a power train at least a portion of which is a resilient elastically deformable member arranged in the form of a closed loop, substantially anchored on a rearwardly facing portion of said stock and extending on opposite sides of said stock forwardly along the outer surfaces of said trackway and then over said second pair of pulleys and then outwardly and over said first pair of pulleys with the last portion of said train extending between said first pair of pulleys is transverse to and overlies the upper surface of said trackway for permitting automatic engagement of the forward side of said last portion by said power train when said carriage is moved forwardly on said trackway; a trigger assembly for engaging and releasing said power train, said assembly including a carriage a trigger pivotally mounted on the carriage, said carriage being slideable along said trackway and including means extendable upwardly from said carriage to terminate above the upper surface of said trackway when said carriage is moved to its forward most position for automatically engaging the forward side of said last portion of said power train when said carriage is moved rearwardly on said trackway; a cocking arm pivotally connected to the outer end of said trackway and pivotal from a first position extending substantially at right angles downwardly of said trackway to a second position parallel to and received between the members of said trackway; and a link means for pivotally connecting at one end at substantially the midpoint of said cocking lever and at the other end with said slidable carriage, whereby when said cocking lever is moved from said second to said first position and back to said second position, the last portion of said power train is engaged by said means extendable from the carriage and as said last mentioned means moves rearwardly on said trackway against the biasing force of said resilient portion of said train, said means extendable upwardly from the carriage thereafter functioning to suddenly release said power train in response to actuation of said trigger.
Claim 3
Dependent Claim
47 words
The combination defined by claim 1 in which said means extendable upwardly includes a U-shaped member with legs pivotally mounted on said carriage and means biasing said member to a position with the legs pointing forwardly and to underly the train as said carriage is moved forwardly.
Claim 4
Dependent Claim
78 words
The combination defined by claim 2 including a guard member carried by said U-shaped member extending in spaced relation rearwardly of the legs of the U for engaging the rear side of the train as said carriage nears the limit of its forward travel The force exerted by said train on said U-shaped member causes said U-shaped member to pivot upwardly and rearwardly to engage the front side of the train as said carriage completes its forward travel.
Claim 5
Dependent Claim
49 words
The combination defined by claim 3 in which the spacing between the legs of said U-shaped member is greater than the diameter of arrows to be shot and the rear face of the legs of said member having aligned notches therein to hold the train during the cocking operation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |