Accessory for detecting leaking of safety valves

Details Accessory for detecting leaking of safety valves Accessory for detecting leaking of safety valves

1991-07-17

1994-06-21

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

137554, 25112901, G08B 2100

Patent

active

053231422

ABSTRACT:
An accessory for detecting leaking and flowing conditions in safety valves and safety relief valves utilizes a load sensing device to sense a change in a load on the valve of the safety relief valve caused by a displacement of the valve disc and provides a low-voltage output signal indicating the nature of the load change.

REFERENCES:
patent: 3896850 (1975-07-01), Waltrip
patent: 4342988 (1982-08-01), Thompson et al.
patent: 4569365 (1986-02-01), Namand et al.
patent: 4658856 (1987-04-01), Gonzi
patent: 4678160 (1987-07-01), Yamada et al.
patent: 4818976 (1989-04-01), Schmitt et al.
patent: 5109885 (1992-05-01), Tauscher

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