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:
Jul. 13, 1999
Filed:
Oct. 15, 1996
James R Allshouse, Newburgh, IN (US);
Christopher Peter Petrole, Chicago, IL (US);
Indian Industries, Inc., Evansville, IN (US);
Abstract
Disclosed is a compound archery bow having a handle, a pair of resilient bow limbs, and a pulley system for providing let off. Each of the bow limbs has a mounting portion opposing a tip portion. The mounting portion of each of the bow limbs is fastened to the handle opposite the other. The pulley system includeds a bowstring, a take-up string, and a pair of cam wheels. The wheels are each pivotally mounted to a corresponding bow limb tip portion with the bowstring and take-up string being mounting under tension therebetween. Each of the wheels includes a peripheral bowstring track with a first working length and a peripheral take-up string track with a second working length. A ratio of the first working length to the second working length is at least about 2.5. Additional or alternative cam wheel features include a maximum radius ratio of the first track maximum radius to the second track maximum radius of at least about l.75, in a cam ratio of at least 5 for a drawn position of the bow. An uniquely pre-curved bow limb and related compound bow assemblies are also disclosed.