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. 24, 2001
Filed:
Nov. 02, 1998
Applicant:
Inventors:
Robert A. Flynn, Paso Robles, CA (US);
Robert E. Flynn, Covina, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B 9/08 ;
U.S. Cl.
CPC ...
B08B 9/08 ;
Abstract
An engine oil system cleaning apparatus has a cleaning solution delivery line connected by an adapter to a running engine, and an exit line and a return line from the engine connected at an adapter at the engine oil pan. A fail-safe loop flow circuit, including the exit line and solution delivery line, is provided upon sensing of a pressure drop in the delivery line to operate valves to effect flow through the fail-safe circuit.