Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2006-02-21
2006-02-21
Fox, John (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C137S614190
Reexamination Certificate
active
07000635
ABSTRACT:
The invention relates to a double valve with a valve housing (1), for housing two double-headed actuators (30, 31), whereby the double head actuators have differing head diameters (12, 13) and the flow of a fluid through the both actuators (30, 31) in the valve housing (1) is identical. The valve housing (1) is of one-piece design and a drive function for both actuators (30, 31) is not connected to the inner volume of the valve housing (1) with fluid flowing therein.
REFERENCES:
patent: 1033204 (1912-07-01), Skinner
patent: 1206532 (1916-11-01), Gray
patent: 1213852 (1917-01-01), Brown
patent: 1356925 (1920-10-01), Knox
patent: 1567030 (1925-12-01), Bryant
patent: 3942437 (1976-03-01), Hatsuse
patent: 6330880 (2001-12-01), Okada et al.
patent: 1025226 (1958-02-01), None
patent: 0985817 (2000-03-01), None
Erbe Guntram
Hochstuhl Erwin
Neu Kunibert
Wetzel Martin
Wissler Karl-Anton
Fox John
Maginot Moore & Beck
Siemens Building Technologies AG
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