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:
Mar. 10, 1981
Filed:
Dec. 19, 1978
Hans Pohlenz, Koblenz, DE;
Stabilus GmbH, Koblenz-Neuendorf, DE;
Abstract
A damping arrangement for the tub assembly of a washing machine and the like in which a piston mounted on a piston rod in the cavity of a cylinder axially separates two compartments of the cavity and is formed with restricted throttling passages connecting the compartments. The piston may be by-passed by a bore in the piston rod having respective orifices in the two compartments, one orifice being capable of being blocked by an inert mass mounted on the piston rod in one of the compartments for oscillation at the end of a spring. Movement of the inert mass away from a rest position toward which it is normally biased by the spring is limited by a secondary hydraulic damper to prevent operating noise and reduce premature wear.