The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1987
Filed:
Jun. 08, 1984
Applicant:
Inventor:
John E Powers, Princeton, NJ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F41B / ;
U.S. Cl.
CPC ...
124 / ; 124D / ;
Abstract
A compound bow that uses mechanical advantage for interconnecting the bowstring with the resilient bow limbs is configured in such a way that all components of the mechanical advantage are positioned to lie outside the immediate vicinity of the arrow position, thereby permitting the bowstring to be aligned with the centerline of the limbs and further permitting all vector forces operating on the bowstring, limbs, and mechanical advantage to lie in a common plane, thus minimizing twisting torques applied to the limbs. In an embodiment comprising cables attached to cams as part of the mechanical advantage, the use of rotating cable-end fasteners minimizes the friction from cable flexing.