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US4722317A Expired / Lapsed US ⏱️ 0.0 years remaining

Archery bow

Assignee: Individual
•
Filing: 1986-10-20
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Granted: 1988-02-02
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Expires: 2006-10-20
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Abstract

Abstract A compact easily maneuverable archery bow comprising a handle, flexible limbs extending forward of a said handle, a bowstring, and structure coupling the bowstring and the resilient limbs so that as the bowstring is drawn back rearwardly of the handle the limbs are pulled inwardly back toward the front of the handle to provide force needed for propelling an arrow or the like.

Inventors

  • 👤 Jim L. Hartwig

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 21:38
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/0094; F41B5/10

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 212 words
An archers bow comprising (a) a handle having spaced apart ends; (b) a pair of elongated flexible resilient limbs connected to opposite end portions of said handle, extending forward of said handle, and ending in free terminal tips spaced apart in front of said handle; (c) a bowstring having a central portion rearward of said handle; (d) structure coupling said bowstring with said limbs in such a fashion that when the central portion of said bowstring is drawn rearward of said handle said limbs are pulled back toward the front of the handle to store potential energy that will be released when the drawn bowstring is released, said structure comprising arms attached to opposite end portions of the handle and extending rearwardly therof; rotatably mounted pulleys attached to each of arms; rotatably mounted pulleys attached to each of the forwardly extending flexible limbs; wherein said bowstring has opposite end portions extending from said central portion; and wherein said end portions are passed around said pulleys of said limbs and of said arms and are secured to the bow in such a fashion that when the central portion of the bowstring is drawn away from the back of the handle the flexible limbs will be drawn back toward the front of the handle.
Claim 2
Dependent Claim 212 words
An archers bow comprising (a) a handle having spaced apart ends; (b) a pair of elongated flexible resilient limbs connected to opposite end portions of said handle, extending forward of said handle, and ending in free terminal tips spaced apart in front of said handle; (c) a bowstring having a central portion rearward of said handle; (d) structure coupling said bowstring with said limbs in such a fashion that when the central portion of said bowstring is drawn rearward of said handle said limbs are pulled back toward the front of the handle to store potential energy that will be released when the drawn bowstring is released, said structure comprising arms attached to opposite end portions of the handle and extending rearwardly therof; rotatably mounted pulleys attached to each of arms; rotatably mounted pulleys attached to each of the forwardly extending flexible limbs; wherein said bowstring has opposite end portions extending from said central portion; and wherein said end portions are passed around said pulleys of said limbs and of said arms and are secured to the bow in such a fashion that when the central portion of the bowstring is drawn away from the back of the handle the flexible limbs will be drawn back toward the front of the handle.
Claim 3
Dependent Claim 57 words
A bow according to claim 1 wherein said bow includes means which cooperates with said bowstring to increase the bowstring tension as the bowstring is drawn from the rest position to an intermediate drawn position and then to decrease the bowstring tension as the bowstring is drawn from said intermediate position to a more fully drawn position.
Claim 4
Dependent Claim 50 words
A bow according to claim 1 wherein said bow includes means for establishing an intermediate position in the draw of the bowstring where the applied force required to hold the bowstring in that position is greater than the force required to hold the bowstring in a more fully drawn position.
Claim 5
Dependent Claim 13 words
A bow according to claim 1 wherein said arms are stationary and nonresilient.
Claim 6
Dependent Claim 17 words
A bow according to claim 4 wherein said pulleys of said forwardly extending limbs are eccentric pulleys.
Claim 7
Dependent Claim 25 words
A bow according to claim 5 wherein said arms are of such weight that said amrs counterbalance the weight of the forward extending flexible limbs.
Claim 8
Dependent Claim 58 words
A bow according to claim 6 wherein the end portion of the bowstring that is strung around the pulley of the lower arm is strung around the pulley of the lower limb and the end portion of the bowstring that is strung around the pulley of the upper arm is strung around the pulley of the upper limb.
Claim 9
Dependent Claim 50 words
A bow according to claim 7 wherein said bow includes means for establishing an intermediate position in the draw of the bowstring where the applied force required to hold the bowstring in that position is greater than the force required to hold the bowstring in a more fully drawn position.
Claim 10
Dependent Claim 13 words
A bow according to claim 1 wherein said arms are flexible resilient limbs.
Claim 11
Dependent Claim 22 words
A bow according to claim 1 having a counterbalance means attached to an upper portion of the handle and extending rearwardly thereof.
Claim 12
Dependent Claim 64 words
A bow according to claim 1 wherein a pair of curved flexible resilient limbs are attached to the opposite ends of said handle, each limb having two ends one of which extends forward of said handle and the other which extends rearward of the handle, said forward extending portions comprising said forward extending limbs and the rearwardly extending portions comprising said rearwardly extending arms.
Claim 13
Dependent Claim 17 words
A bow according to claim 11 wherein said pulleys of said fowardly extending limbs are eccentric pulleys.

References Cited (Backward Citations)

US3108583A Cited
US3515113A Cited
US3851638A Cited
US4178904A Cited
US4553522A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-02-01 1991-08-03 1992-02-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-02-01 1995-08-03 1996-02-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-02-01 1999-08-03 2000-02-02 $7700.00 Window Closed / Lapsed

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