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:
Jul. 07, 1981
Filed:
Dec. 17, 1979
Berthold Herrmann, Heidenheim, DE;
Hans Lindenthal, Heidenheim, DE;
Voith Getriebe KG, , DE;
Abstract
A hydrodynamic brake is disclosed. It comprises a working chamber with a rotor and a stator in it. An inlet supplies fluid to the working chamber which tends to increase the braking torque. An outlet permits exit of fluid from the working chamber, which tends to decrease the braking torque. An overflow valve may be opened or closed to selectively permit or prohibit exit of working fluid from the working chamber outlet. A pressure source, such as the pressure in the working chamber, normally holds the overflow valve open. A regulating valve is connected by a pressurized connection with the overflow valve and the regulating valve selectively opens or closes the overflow valve. The regulating valve compares the desired braking torque, which is established by an operating lever for the brake, with the actual braking torque, and the regulating valve opens or closes the overflow valve for tending to bring the actual braking torque to the desired braking torque. The pressure source may communicate with the pressurized connection through the regulating valve.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile