Fluid handling – With casing – support – protector or static constructional... – Jacketed
Patent
1991-06-06
1992-10-27
Chambers, A. Michael
Fluid handling
With casing, support, protector or static constructional...
Jacketed
2513353, 251368, 62 507, F16L 700
Patent
active
051581060
ABSTRACT:
A cryogenic valve that uses conventional materials in unusual ways to achieve very low heat leak, excellent strength, pressure or vacuum integrity and modest manufacturing cost. Heat leak rates on the order of 0.5 watt have been obtained in a 1.5 inch valve. Such performance is made possible by the unique structure of the valve stem, of the bonnet extension, and of certain insulative spacers. The valve stem consists of a thin wall tube of wound glass filaments in an epoxy matrix. The bonnet extension consists of a thin wall stainless steel bellows wound with glass fibers in an epoxy matrix. The insulative spacers have a shape that results in a long tortuous conduction path when they are stacked inside the valve stem and in the space between the valve stem and the bonnet extension.
REFERENCES:
patent: 3251575 (1966-05-01), Campbell et al.
patent: 3315700 (1967-04-01), Greenwood
patent: 3383875 (1968-05-01), Haas
patent: 3491789 (1970-01-01), Callahan et al.
patent: 3573863 (1971-04-01), Doors
patent: 3774881 (1973-11-01), Gregory
patent: 3784156 (1974-01-01), Paetzel et al.
patent: 4171792 (1979-10-01), Bass
patent: 4462422 (1984-07-01), Owoc et al.
patent: 4644969 (1987-02-01), Watanabe
patent: 5000215 (1991-03-01), Phillips
Chambers A. Michael
McKown Daniel C.
SAES Pure Gas, Inc.
LandOfFree
Ultra-low heat leak cryogenic valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra-low heat leak cryogenic valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-low heat leak cryogenic valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-900344