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. 09, 1997
Filed:
Nov. 17, 1995
Terry Colford, Leicestershire, GB;
Firma Carl Freudenberg, Weinheim, DE;
Abstract
A torsional vibration damper with an essentially cup-shaped hub ring made of metallic material, an annular casing and a rotating ring. The hub ring and annular casing and the rotating ring are spaced from one another by a radial clearance and are joined in a torsionally flexible manner by a spring element made of elastomeric material. The spring element is arranged in the opening formed by the clearance. The casing of the hub ring is provided at least radially externally with an adhering first coating made of thermosetting plastic, which coating may have a pulley-type of surface profiling. The first coating may be reinforced with fibers for dimensional stability, and the second coating may expand and contract with temperature variations to ensure constant prestressing in the spring element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile