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:
May. 30, 2000
Filed:
Mar. 04, 1999
John J Islas, Baldwinsville, NY (US);
Other;
Abstract
An compound archery bow has a riser with upper and lower limbs, a bowstring connecting outboard ends of the limbs, and synchronizing pulleys for ensuring equal flexing of the limbs. The upper and lower limbs each have an inner spring limb or power limb affixed to the riser; and an outer rigid limb or recurve limb. A hinge member pivotally joins the outboard end of the spring limb in line with the inboard end of the rigid recurve limb. A pair of cam plates are affixed to the recurve limb at its inboard end, and there are left and right cam members on the riser and coupled to rotate with the synchronizing pulley. Left and right cam cables extend over the left and right cam members, respectively, and then over the associated left and right cam plates. The cam cables cooperate with the cam members and cam plates to establish the draw characteristics of the bow. The recurve limb can have a recurve of e.g. 135 degrees, and can be of a T-beam construction, with a transverse web and a flange that extends to the inside of the curve defined by the web. The rigid recurve member can be forged of aluminum or can be a plastic resin.