Thermostat valve arrangement

Details Thermostat valve arrangement Thermostat valve arrangement

2005-01-12

2011-10-04

Tyler, Cheryl J (Department: 3744)

Automatic temperature and humidity regulation

Thermostatic

Expanding solid

C236S09300A, C236S09300A, C236S09900R, C236S100000, C251S321000, C251S323000, C137S543210

Reexamination Certificate

active

08028926

ABSTRACT:
A thermostat valve arrangement for the cooling circuit of an internal combustion engine includes a main valve member movably mounted in a housing adapted to be pressed against a main valve seat by a spring. The valve arrangement further includes a bypass valve member cooperating with a bypass valve seat in the housing. An expansion element has a first section cooperating with an abutment fixed to the housing and a second section cooperating with the main valve member and the bypass valve member such that the main valve or bypass valve is selectively closed and/or opened, in order to produce the cooling circuit of the internal combustion engine by means of a radiator or a bypass.

REFERENCES:
patent: 2996254 (1961-08-01), Freismuth
patent: 3248056 (1966-04-01), Obermaier
patent: 3409039 (1968-11-01), Griffin
patent: 4630770 (1986-12-01), Sliger et al.
patent: 4674679 (1987-06-01), Saur
patent: 6471133 (2002-10-01), O'Flynn et al.
patent: 9204611 (1993-08-01), None
patent: 4231649 (1994-03-01), None
patent: 19504677 (1995-08-01), None
patent: 19646295 (1998-05-01), None
patent: 08-082217 (1996-03-01), None
patent: 11-117743 (1999-04-01), None
patent: 03074911 (2003-09-01), None
English translation of DE 4231649 issued to Henschel.
Notice of Reasons for Rejection for JP2006-548256 mailed Mar. 16, 2010.

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