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. 17, 1979
Filed:
Nov. 21, 1977
Applicant:
Inventor:
Jakob Wetter, Dusseldorf, DE;
Assignee:
Sack GmbH, Dusseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
73 4 / ;
Abstract
Apparatus is provided for detecting leakages in hydraulic equipment. A pressure supply line of the equipment has alternate fluid flow paths controlled by respective, oppositely directed non-return or one-way valves which are pre-loaded as by springs. A restricted flow transducer is located in a bypass line which bypasses the alternate fluid flow paths for sensing pressure drops in the system.