Valve with pivoting flap and installation equipped with the valv

Details Valve with pivoting flap and installation equipped with the valv Valve with pivoting flap and installation equipped with the valv

1999-04-23

2000-07-11

Huson, Gregory L.

Fluid handling

Line condition change responsive valves

Direct response valves

137527, F16K 1500

Patent

active

060857811

ABSTRACT:
A pressure relief valve includes a flap pivoting around an axis parallel to the plane of the flap. A holder holds the flap in the closed position, which exerts a predetermined force in opposition to the force exerted by the pressure on a sealing side. The sealing side of the flap carries a skirt that extends toward the seat of the valve and cooperates with the periphery of the seat. The skirt is at a predetermined height such that the valve moves out of its initial position by a predetermined value while maintaining the seal. The holder has a mass movable relative to the flap. The mass moves from an initial position to an inactive position when the flap moves from its closed position to its open position, in order to change the flap's center of gravity and thereby reduce the force exerted by the holder.

REFERENCES:
patent: 1480942 (1924-01-01), McKee
patent: 1584760 (1926-05-01), Fantz
patent: 3074429 (1963-01-01), Farrow
patent: 3613720 (1971-10-01), Welch
patent: 3710821 (1973-01-01), Turetsky et al.
patent: 4022421 (1977-05-01), Carlin
patent: 4353390 (1982-10-01), Karpenko
patent: 4494564 (1985-01-01), Lukacz
patent: 5010919 (1991-04-01), Partridge
patent: 5201685 (1993-04-01), Raisanen
patent: 5205311 (1993-04-01), Wilkins
patent: 5983930 (1999-11-01), Nordenberg

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