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:
Dec. 14, 1976
Filed:
Sep. 29, 1975
Nshan Hamparian, Brighton, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An internal combustion engine of the type having so-called free standing cylinders or cylinder liners surrounded by an open topped coolant cavity is provided with internal sound attenuation barrier means, preferably mounted in the coolant cavity on the inner surfaces of the cylinder block walls or on the outer walls of the cylinders. The barrier means preferably comprises a rigid sheet engagable with the mounting wall and supporting a resilient sound absorbent material bonded or otherwise retained on one surface thereof. In a preferred embodiment the barrier material is a laminated steel having two spaced steel sheets bonded together by a rubber or rubber-like material encapsulated between the two sheets and formable into the desired shape of sound attentuating sleeve or barrier.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile