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. 18, 2006
Filed:
Dec. 17, 2004
John R. Colbourne, St. Albert, CA;
John R. Colbourne, St. Albert, CA;
Genesis Partners, L.P., Montgomeryville, PA (US);
Abstract
A gear system which includes a pinion and mating-gear forming a gear pair with a predetermined gear ratio (m), center distance (C), face-width (F), and limiting stresses. The pinion has a pinion tooth number (N) and a first plurality of teeth, each tooth having a first-tooth profile. The mating gear has a mating-gear tooth number (N) satisfying the expression N=m·Nand a second plurality of teeth, each tooth having a second-tooth profile. The relative curvature of the first-tooth profile and the second-tooth profile is given by the expression k·F, where Fis a relative reference curvature function given by the expression F=(N+N)/(N·N·C), and kis a relative curvature multiplier which is a function of the gear ratio (m), the center distance (C), the face-width (F), and the limiting stresses.