Overpressure protection device and connection subassembly...

Details Overpressure protection device and connection subassembly... Overpressure protection device and connection subassembly...

2011-08-02

2011-08-02

Hepperle, Stephen N (Department: 3753)

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

C137S463000

Reexamination Certificate

active

07987870

ABSTRACT:
The invention relates to a protection device which defines a through hole (21) for the passage of a fluid which may be under overpressure conditions. In addition, the inventive device comprises: a stop plug (26) which can move between an open position and a position in which a first section of the hole (21) is sealed; a stop valve (28) which can move between an open position and a position in which a second section of the hole (21) is sealed; and means (22, 23, 27) for triggering both the movement of the stop plug (26) and the movement of the valve (28) from the open position to the sealing position in response to an overpressure (P2) in the hole (21). The invention is particularly suitable for self-contained equipment used to supply electrical power by means of a fuel cell.

REFERENCES:
patent: 3228417 (1966-01-01), Schwerter
patent: 3384110 (1968-05-01), Wiley
patent: 3424194 (1969-01-01), Kruzan et al.
patent: 3589398 (1971-06-01), Haach
patent: 3842858 (1974-10-01), Bobo
patent: 4067359 (1978-01-01), Kwast
patent: 4223692 (1980-09-01), Perry
patent: 4976281 (1990-12-01), Berglund
patent: 6635372 (2003-10-01), Gittleman
patent: 2002/0164545 (2002-11-01), Sakaguchi et al.

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