Safety apparatus for disconnects and/or valves

Details Safety apparatus for disconnects and/or valves Safety apparatus for disconnects and/or valves

1992-03-13

1992-10-06

Walton, George L.

Fluid handling

With casing, support, protector or static constructional...

Guards and shields

220724, F16K 3500, F16L 3500

Patent

active

051523132

ABSTRACT:
The present invention comprises a safety apparatus which includes a means for covering a disconnect valve means and an urging means disposed near the covering means. The urging means urges the covering means to cover the disconnect valve means. The urging means further has a retraction mechanism for retracting the covering means from the disconnect valve means only when an external retracting command activates a retracting force on the retracting mechanism. Therefore, the valve is covered by the covering means and is prevented from being inadvertently operated during a system failure and an unsafe operation condition.

REFERENCES:
patent: 4103806 (1978-08-01), White
patent: 4301828 (1981-11-01), Martin, Jr.
patent: 4600033 (1986-07-01), Baron
patent: 4629157 (1986-12-01), Tsuchiya et al.
patent: 4637423 (1987-01-01), Gray
Tridex, On-Line Auto Pressure Interlock, Persys Technology Ltd.
Clippard Stainless Steel Cylinder, Catalog 784, 1984, Clippard Instrument Laboratory, Inc.

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