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:
Nov. 29, 1977
Filed:
Sep. 13, 1976
George N Levesque, Warwick, RI (US);
Brown & Sharpe Manufacturing Company, North Kingstown, RI (US);
Abstract
This invention relates to a clutch tooth design which provides increased load carrying ability by having substantial face to face contact of the teeth during a partial engagement of the clutch teeth. The teeth of the clutch are machined to a profile form which is of exponential shape. Mating contact areas lie in a mid-pitch plane perpendicular to the axis of rotation of the clutch. The mutual tangent between two contacting teeth lies in a truly helicoid surface. The essential line contacts resulting from machining are converted by a coining process to areas large enough to carry the service loads. As a result the tooth form developed actually improves with continued use.