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. 26, 2001
Filed:
Oct. 28, 1999
Applicant:
Inventor:
Franz Gratzer, Stallhofen, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 4/3284 ;
U.S. Cl.
CPC ...
F16D 4/3284 ;
Abstract
A hydraulic clutch which is dependent on rotation speed difference comprises a rotating housing (,), a hydrostatic displacement machine (,) arranged in this housing (,), a shaft (,), a friction clutch (,) for connecting the shaft (,) to the housing (,), and a piston (,). In order to limit the torque in a very simple manner without any disturbing centrifugal force influences, and in order to cool the friction clutch, the compression chamber (,) is connected via a constriction point (,) to the interior (,) of the friction clutch (,), and the constriction point is designed as a pressure-limiting valve. This is formed by a plate spring (,) in the wall (,) of the piston (,).