Thomas B Weir

US Patent:

6447270, Sep 10, 2002

Filed:

Sep 16, 1999

Appl. No.:

09/397359

Inventors:

Robert A. Schmidt - Lapeer MI
Bruce A. Smetana - Colton WA
Thomas T. Weir - Pullman WA

Assignee:

Walbro Corporation - Cass City MI
Isothermal Systems Research, Inc. - Clarkston WA

International Classification:

F04B 1700

US Classification:

417366, 165804

Abstract:

A liquid pump with a brushless motor constructed to be received within a liquid reservoir of a cooling system to deliver liquid coolant under pressure to a manifold assembly through which the coolant is discharged onto various electronic components to cool them. The pump has a pumping assembly, a rotor, a stator and an electronic control circuit which controls the operation of the pump and each of which is immersed in liquid coolant in the pump housing to cool them as the coolant flows through the pump. Further, because each component within the pump can be exposed to the liquid in the pump, no sealed enclosures are needed for the pump as a whole or for any component therein and the pump can be received directly in the reservoir.

US Patent:

D3569900, Apr 4, 1995

Filed:

Oct 15, 1993

Appl. No.:

D/014232

Inventors:

Thomas J. Weir - Santa Ana CA
Heinz A. Gerhardt - Redondo Beach CA
Robert V. Dunkason - Bournemouth, GB2
Randall B. Hall - Rowland Heights CA

Assignee:

Northrop Grumman Corporation - Los Angeles CA

US Classification:

D12342