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. 17, 1993
Filed:
May. 11, 1992
Applicant:
Inventor:
Rolf Pape, Berlin, DE;
Assignee:
Carl Hasse & Wrede, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
228170 ; 72 71 ; 228184 ;
Abstract
For a torsional vibration damper, whose working chamber, formed by an inner shell (17), an outer shell (19), a rear wall (15) and a cover (13) is provided to receive a seismic ring and viscous damping liquid (1), the housing body (1) bearing the working chamber is made by a metal forming process in a spinning lathe, starting from a round steel blank (17), which is clamped between mandrel bodies within the spinning lathe, and is split into two blank sections (31, 33) which receive the contour of the cylindrical inner and outer shell (17, 19) defining the working chamber (5) of the damper by subsequent forming.