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. 19, 1985
Filed:
May. 18, 1983
Applicant:
Inventors:
Hans Meier, Kollbrunn, CH;
Werner Staheli, Neuenhof, CH;
Assignee:
Sulzer Brothers Limited, Winterthur, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ; F01B / ; F04B / ; F04B / ;
U.S. Cl.
CPC ...
92 / ; 417 13 ; 417 63 ; 277-2 ;
Abstract
The lubricant monitoring system comprises an element which absorbs a liquid lubricant on the piston rod between a lubricant wiper assembly surrounding the same and a seal which surrounds the piston rod where the rod enters the compressor cylinder and an electrode of a measuring capacitor (CM) near the element. The lubricant absorbent element acts as the dielectric of the measuring capacitor. In the event of a fault on the lubricant wiper assembly, liquid lubricant is absorbed by the absorbent element so that the dielectric constant changes. This can be utilized for an alarm.