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:
Oct. 10, 1989
Filed:
Apr. 28, 1988
Applicant:
Inventor:
Erich Erhart, Graz St. Peter, AT;
Assignee:
Steyr-Daimler-Puch AG, Vienna, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67C / ; G01F / ;
U.S. Cl.
CPC ...
141-5 ; 141 95 ; 73149 ; 222 64 ;
Abstract
In order to provide in a liquid-containing liquid friction coupling an air-filled space having a predetermined volume in a process which requires a minimum of manipulation and can be carried out in a short time, equal quantities of air are forced into the liquid-containing liquid friction coupling, on the one hand, and into a pressure-tight reference vessel which contains an air-filled space having the desired volume, on the other hand, the pressure difference between the reference vessel and the liquid friction coupling is then measured, and the pressures are balanced in that liquid is added to or removed from the liquid friction coupling.