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:
Aug. 11, 1981
Filed:
Nov. 02, 1978
Richard C St John, North Canton, OH (US);
Aspro, Inc., Canton, OH (US);
Abstract
An improved pivotal mounting assembly, preferably for use with a centrifugal clutch for pivotally mounting the clutch shoes, has a plastic insert which forms either a sector-like portion of a usual cylindrical-shaped, metallic pivot pin, or a portion of the clutch shoe which forms a pivot pin receiving opening. The plastic insert will have an outer convex surface when forming a part of a cylindrical pivot pin or will have a concave surface when forming a part of the clutch shoe. Preferably the convex and concave surfaces will have arcuate lengths of approximately 120.degree.. The plastic insert provides a low-friction pivotal bearing surface for the clutch shoe, which will absorb many of the forces and stresses exerted on the pivot assembly upon coupling engagement of the clutch shoes with a driven drum. The supporting metal areas of the pivot pin or clutch shoe adjacent the plastic strip provides the mechanical strength for the strip.