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. 23, 1982
Filed:
Jul. 08, 1980
Applicant:
Inventor:
Karl-Heinz Bernhardt, Braunfels, DE;
Assignee:
Arthur Pfeiffer-Vakuumtechnik Wetzlar GmbH, Asslar, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73 40 ;
Abstract
In measuring the rate of leak from a test object, a conduit system including branch lines interconnects the test object with a measuring tank, a pressure gauge, a vacuum pump and a device for removing vapor from the measuring tank. Valves in the conduit system permit the various parts to be selectively interconnected or separated. By measuring the pressure in the measuring tank under various conditions it is possible to determine the rate of leak.
Bernhardt, Karl-Heinz. (1982). Method of and apparatus for measuring the rate of leak (U.S. Patent No. 4320653). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4320653
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile