Safety shut-off device

Details Safety shut-off device Safety shut-off device

2008-04-15

2008-04-15

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

C062S149000, C062S179000, C137S493000, C137S597000, C137S906000

Reexamination Certificate

active

11624975

ABSTRACT:
A safety shut-off device for sections of fluid circuits, which in case of damage or the like, have to shut off from each other on safety considerations. The safety shut-off device includes at least two valves connected to each other via a control chamber. A first pressure differential with the control chamber closes the valves and a second pressure differential, which is greater than the first, opens the valves.

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