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US 3,938,544 AGranted
Valve with heat transport monitor for leakage determining rate
OwnerHenry J. Bernaertsinventor
Life of this patent
Estimating the term…
Abstract
A valve having means for measuring leakage through the valve. The valve body has a small heater in the leakage flow path downstream of the upstream seal and a heat sensor upstream of the downstream seal in the leakage path; fluid that leaks past the upstream seal is heated and its presence detected by the heat sensor which then indicates the fact that the valve is leaking.
Claims5
A valve comprising:
- a body;
- a closure element within said body;
- sealing members between said valve body and said closure element;
- and
- means within said valve body for determining the leakage of the fluid of the main fluid flow controlled by said valve, between said closure element and said sealing members.
2 more elements
Dependencies are inferred from the claim text.