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US3841295A Expired / Lapsed US ⏱️ 0.0 years remaining

Compound archery bow

Assignee: Individual
•
Filing: 1973-08-20
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Granted: 1974-10-15
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Expires: 1993-08-20
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Abstract

Abstract An archery bow string is secured intermediate its ends to eccentrically pivoted cams mounted at the outer ends of the limbs of a bow. An adjustable control cable operatively interconnects each limb, inwardly of the associated cam, and a lever mounted pivotally on the bow inwardly of said limb connection. The terminal end of each end segment of the bow string is secured to the lever associated with the opposite limb, outwardly of the control cable connection to said lever, in order to balance a maximum pull weight which remains constant throughout a predetermined intermediate portion of the draw length. Adjustment of the length of the control cables effects adjustment of the tension and flexure of the limbs, pull weight of the bow string, angular position of the cams. A coupling member is used to connect a working stretch portion of a bow string with its end segments.

Inventors

  • 👤 L Hunter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 05:20
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/14; F41B5/1403; F41B5/1411; F41B5/10

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 206 words
A compound archery bow, comprising: a. a handle member, b. a pair of bow limbs projecting from opposite ends of the handle member, c. a pair of cam members, each said cam member being mounted on one of said bow limbs and each said cam member being pivoted eccentrically adjacent the outer end of each its associated limb, d. a bow string for projecting an arrow, said bow string spanning between said cam members and being secured intermediate its ends to the pair of cam members and forming an intermediate working stretch therebetween, a pair of opposite end segments of said bow string extending from the cam members, e. a pair of elongated levers mounted pivotally on the bow, each said lever being positioned adjacent the inner end of its associated limb, the outer end of each lever being connected to the end segment of the bow string which is secured to the cam member on the opposite limb, and f. a pair of tension control cables, each said tension control cable operatively interconnecting each said limb and itS associated lever and each said tension control cable being positioned between the bow limb and the connection of the bow string end segment to its associated lever.
Claim 2
Dependent Claim 206 words
A compound archery bow, comprising: a. a handle member, b. a pair of bow limbs projecting from opposite ends of the handle member, c. a pair of cam members, each said cam member being mounted on one of said bow limbs and each said cam member being pivoted eccentrically adjacent the outer end of each its associated limb, d. a bow string for projecting an arrow, said bow string spanning between said cam members and being secured intermediate its ends to the pair of cam members and forming an intermediate working stretch therebetween, a pair of opposite end segments of said bow string extending from the cam members, e. a pair of elongated levers mounted pivotally on the bow, each said lever being positioned adjacent the inner end of its associated limb, the outer end of each lever being connected to the end segment of the bow string which is secured to the cam member on the opposite limb, and f. a pair of tension control cables, each said tension control cable operatively interconnecting each said limb and itS associated lever and each said tension control cable being positioned between the bow limb and the connection of the bow string end segment to its associated lever.
Claim 3
Dependent Claim 50 words
The archery bow of claim 1 wherein each cam member has a peripheral guide groove for confining the bow string therein, a bore through the cam member receives a portion of the bow string therethrough, and a set screw which removably intercepts said bore for securing the bow string therein.
Claim 4
Dependent Claim 30 words
The archery bow of claim 1 including adjusting means associated with each control cable for adjusting the length thereof and to effect adjustment of the tension of its associated limb.
Claim 5
Dependent Claim 71 words
The archery bow of claim 1 including a. a pulley mounted on each limb intermediate the associated cam member and associated lever, b. a rotary reel for each control cable and mounted on the bow inwardly of the associated pulley, c. each control cable being secured at one of its ends to its associated lever, then passed around its associated pulley and secured at its opposite end to its associated reel.
Claim 6
Dependent Claim 30 words
The archery bow of claim 4 wherein the connection of each bow string end segment to its associated lever is offset laterally from the working stretch of the bow string.
Claim 7
Dependent Claim 46 words
The archery bow of claim 1 wherein the connections of the bow string end segments and control cables to each lever are spaced apart a distance predetermined to produce a maximum pull weight which remains substantially constant throughout a predetermined intermediate portion of the draw length.
Claim 8
Dependent Claim 131 words
The archery bow of claim 1 wherein the bow string includes a separate working stretch and a pair of separate end segments and one of the adjacent ends of the working stretch and end segments is provided with a flexible loop, said adjacent ends of the working stretch and end segments are connected together detachably by a pair of coupling members each comprising: a. an elongated, one-piece body, b. an outwardly projecting connector member adjacent one end of the body for releasable connection of one of said working stretch and end segment, and c. a pair of lateral projections on the end of the body opposite the connector member, d. whereby the flexible loop is engaged behind the projecting connector and the loop''s spaced strands are lapped behind the lateral projections.
Claim 9
Dependent Claim 201 words
In an archery bow having a handle member and a pair of separate limbs extending from the opposite ends of the handle member, means connecting the inner end portion of each limb to the associated end of the handle member for angular adjustment of the limb relative to the handle member, each said means comprising; a. interengaging bearing means on the outer end of the handle member for engaging the inner end portion of it''s associated limb, b. a first pivot shaft mounted on the handle member and extending, said shaft being closely adjacent to the interengaging bearing means, c. a first adjustment screw engaging the first pivot shaft and extending perpendicularly therefrom through the interengaging bearing means and its associated limb, d. a second pivot shaft mounted on the handle member inwardly of the first pivot shaft and extending parallel thereto, and e. a second adjustment screw engaging the second pivot shaft and extending perpendicularly therefrom through its associated limb adjacent the inner end thereof, f. said second adjustment screw being adjustable longitudinally relative to the second pivot shaft, whereby to pivot the limb on said interengaging bearing means and vary the angular relationship between the limb and handle member.
Claim 10
Dependent Claim 201 words
In an archery bow having a handle member and a pair of separate limbs extending from the opposite ends of the handle member, means connecting the inner end portion of each limb to the associated end of the handle member for angular adjustment of the limb relative to the handle member, each said means comprising; a. interengaging bearing means on the outer end of the handle member for engaging the inner end portion of it''s associated limb, b. a first pivot shaft mounted on the handle member and extending, said shaft being closely adjacent to the interengaging bearing means, c. a first adjustment screw engaging the first pivot shaft and extending perpendicularly therefrom through the interengaging bearing means and its associated limb, d. a second pivot shaft mounted on the handle member inwardly of the first pivot shaft and extending parallel thereto, and e. a second adjustment screw engaging the second pivot shaft and extending perpendicularly therefrom through its associated limb adjacent the inner end thereof, f. said second adjustment screw being adjustable longitudinally relative to the second pivot shaft, whereby to pivot the limb on said interengaging bearing means and vary the angular relationship between the limb and handle member.

References Cited (Backward Citations)

US3595213A Cited
US3744473A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-14 1978-04-15 1978-10-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-14 1982-04-15 1982-10-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-14 1986-04-15 1986-10-15 $7700.00 Window Closed / Lapsed

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