Thermal isolator and controlled valve employing same

Details Thermal isolator and controlled valve employing same Thermal isolator and controlled valve employing same

2006-07-04

2006-07-04

Yu, Justine R. (Department: 3751)

Valves and valve actuation

Detachable actuator

C251S356000, C016S431000

Reexamination Certificate

active

07070165

ABSTRACT:
A thermal isolator assembly that provides rigid construction, linearly and rotationally, is presented. The thermal isolator assembly includes a collar and a sleeve that are thermally isolated one from another but held in rigid mechanical relation. When constructed for actuated valves, the collar forms an actuator arm coupling member while the sleeve forms a valve stem coupling member. A pair of thermal isolators provide thermal isolation between these members. A polyphenylene sulfide compound, and preferably a fiberglass reinforced polyphenylene sulfide compound is used because of its high mechanical strength and low thermal conductivity for these thermal isolators.

REFERENCES:
patent: 3024403 (1962-03-01), Safford
patent: 3680788 (1972-08-01), Cox
patent: 5098063 (1992-03-01), Ronzon
patent: 5499916 (1996-03-01), Schad et al.
patent: 6170801 (2001-01-01), Powell et al.
patent: 2003/0056835 (2003-03-01), Gagnon
patent: 0 972 918 (2000-01-01), None

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