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:
Jun. 04, 1996
Filed:
Oct. 14, 1994
Applicant:
Inventor:
John L Thompson, Golf, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
184-15 ; 184109 ; 62468 ;
Abstract
Apparatus and method of exchanging lubricating oil from the crankcase of a compressor. A unit including a pretrimmed flexible tube is introduced into the oil fill plug opening. By opening an internal valve, the oil under pressure exits through an opening in the unit, which is connected to a drain hose. After emptying, a hand oil pump is connected to the unit and fresh oil introduced into the compressor crankcase.