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:
Apr. 04, 2000
Filed:
Aug. 07, 1998
Applicant:
Inventors:
Edward J Greenan, Belleville, MI (US);
Bruce T Levy, Howell, MI (US);
Tsunlock Andrew Yu, Saline, MI (US);
Alan Lee Brace, Livonia, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
60337 ; 60339 ;
Abstract
A power transmission has a hydraulic control from which oil is distributed to various transmission components, a cooler and reservoir. A flow direction control valve is disposed in the distribution system to direct oil in transit to the reservoir during cold operation and to a transmission lubrication circuit or cooling circuit during normal operating temperatures.