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, 1989
Filed:
Feb. 17, 1987
Applicant:
Inventor:
Robert J Ferguson, Marshall, MI (US);
Assignee:
Simpson Industries, Inc., Litchfield, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
74574 ; 74 467 ; 464-7 ; 184 151 ;
Abstract
A camshaft damper system for damping torsional vibrations within a camshaft for an internal combustion engine. The drive sprocket attached to the end of a camshaft includes radial projections and recesses meshing with the flexible camshaft drive belt or chain and the sprocket includes torsional vibration damping means in the form of an annular inertia ring and elastomeric member attaching the inertia ring to the sprocket wherein torsional vibrations are absorbed by the elastomeric material reducing wear on the camshaft and the camshaft-related components.