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:
Jun. 24, 1980
Filed:
Mar. 23, 1978
Joachim Conseur, Berlin, DE;
Manfred Hoch, Berlin, DE;
Carl Hasse & Wrede GmbH, Berlin, DE;
Abstract
A torsional balancer device for a rotary shaft such as for a piston engine comprises a primary mass mounted upon the rotary shaft and a secondary mass resiliently supported and mounted with respect to the primary mass so as to be capable of resilient rotational movement with respect thereto. The primary and secondary masses have mutually facing surfaces which define a working space and a viscous damping agent is in the working space. The mutually facing surfaces have profiled configurations so as to form a plurality of chambers the widths of which are varied during relative vibration of the secondary mass with respect to the primary mass. The configurations may comprise coregistering ribs and grooves which have various cross-sectional shapes.