Device for closing a conduit

Details Device for closing a conduit Device for closing a conduit

2008-05-20

2008-05-20

Rivell, John (Department: 3753)

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

C137S079000, C052S001000, C052S232000

Reexamination Certificate

active

07373945

ABSTRACT:
A device for closing a conduit (30) in case of fire includes a housing (11) having a receptacle (17) for receiving the conduit (30), a cutting and blocking member (20) arranged in the housing (11) and displaceable, in case of fire, by a drive element out of the housing (11) over the receptacle (17) to its blocking position (42) for cutting the conduit (30) off and closing same, with the housing (11) having at least one stop (15) that cooperates with a counter-stop (25) provided on the cutting and blocking member (20) and defines the blocking position (42) thereof the cutting and blocking member (20).

REFERENCES:
patent: 3462890 (1969-08-01), Blumenkranz et al.
patent: 3678634 (1972-07-01), Wise et al.
patent: 4109423 (1978-08-01), Perrain
patent: 4788800 (1988-12-01), Whiteley
patent: 5155957 (1992-10-01), Robertson et al.
patent: 5257641 (1993-11-01), Elsbury et al.
patent: 5309688 (1994-05-01), Robertson

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