Valve element

Details Valve element Valve element

2006-11-28

2006-11-28

Rivell, John (Department: 3753)

Fluid handling

Destructible or deformable element controlled

Destructible element

C137S068130, C169S011000

Reexamination Certificate

active

07140381

ABSTRACT:
A valve element (20), comprising a frame (21), at least one first inlet (26), at least one second inlet (27) and at least one outlet (28). The valve element consists of a combination comprising at least one burst disk (23) or equivalent, which, when unbroken, closes a passage from the second inlet (27) at least to the outlet (28), and a piston element (25) comprising a piercing element (24) or the like for piercing the burst disk, said piston element being arranged to be movable between at least two positions when the burst disk has been pierced, in which first position the passage from the second inlet (27) to the outlet (28) is closed while in a second position the passage from the second inlet (27) to the outlet (28) is open, to which second position the piston element is moved after the pressure difference between the second inlet and the first inlet has reached a predetermined value.

REFERENCES:
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patent: 3326226 (1967-06-01), Hinton
patent: 3633596 (1972-01-01), Gerber
patent: 4006780 (1977-02-01), Zehr
patent: 5495865 (1996-03-01), Wass et al.
patent: 2635076 (1978-02-01), None

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