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:
Feb. 20, 1979
Filed:
May. 26, 1978
Applicant:
Inventor:
Robert D Roley, Peoria, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7330 / ; 340 59 ; 340620 ; 340682 ;
Abstract
A bearing joint has a body defining an internal chamber, an opening for supplying an electrically conducting fluid to the chamber, and an electrically nonconducting plug in the opening. An electrical conductor extends through the plug so that the electrical resistance can be measured through the fluid between the conductor and the body of the bearing joint.