Isolation valve for main and auxiliary vehicle air...

Details Isolation valve for main and auxiliary vehicle air... Isolation valve for main and auxiliary vehicle air...

2005-09-29

2010-10-19

Ford, John K (Department: 3744)

Heat exchange

With vehicle feature

Heating and cooling

C165S043000, C165S202000, C165S203000, C062S236000, C062S244000, C137S595000, C137S625190

Reexamination Certificate

active

07814964

ABSTRACT:
A rotatable electrically actuated valve having a spindle with axially spaced grooves and lands constructed and arranged to selectively connect an auxiliary air conditioning system to a truck cab while isolating the truck air conditioning system, and for connecting the truck air conditioning system to the truck cab, while isolating the auxiliary air conditioning system.

REFERENCES:
patent: 2751155 (1956-06-01), Collat
patent: 3098506 (1963-07-01), Spragens
patent: 3698428 (1972-10-01), Gastin
patent: 4682649 (1987-07-01), Greer
patent: 4732229 (1988-03-01), Lucht
patent: 4825663 (1989-05-01), Nijjar et al.
patent: 4947657 (1990-08-01), Kalmbach
patent: 5314007 (1994-05-01), Christenson
patent: 61259045 (1986-11-01), None
patent: 2000127753 (2000-05-01), None
patent: 2003146061 (2003-05-01), None

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