Fluid handling – Destructible or deformable element controlled – Destructible element
Patent
1987-02-02
1988-09-20
Chambers, A. Michael
Fluid handling
Destructible or deformable element controlled
Destructible element
210 89, F16K 1740
Patent
active
047718013
ABSTRACT:
A protective cover assembly for a fluid end of a plunger-type pump or other positive displacement pump. The protective cover assembly includes a cover adapted to fit in an open end of the fluid end of the pump. The cover comprises a convex or domed center portion adapted for buckling away from a plunger of the pump when pressure in the pump exceeds a predetermined level and further comprises an outer portion. A cover retainer is engageable with the open end of the fluid end of the pump and is adapted for clamping the outer portion of the cover to the fluid end. A seal is provided between the outer portion of the cover and the fluid end. The convex center portion of the cover has a convex surface generally facing the plunger, and the convex surface is preferably hemispherical. In one embodiment, the convex center portion has a substantially constant cross-sectional thickness, and in an alternate embodiment, the convex center portion has an enlarged section adapted for affecting a pressure level required for buckling the convex portion. A method of preventing overpressure in a fluid end of a plunger-type pump using the protective cover assembly is also disclosed.
REFERENCES:
patent: 2370870 (1945-03-01), McKeugue
patent: 3216611 (1965-11-01), Lechovallier
patent: 3770918 (1973-11-01), Fortmann
patent: 3815779 (1974-06-01), Ludwig
patent: 4408194 (1983-10-01), Thompson
patent: 4498606 (1985-02-01), DiRienzo
patent: 4520837 (1985-06-01), Cole
Crump Joseph B.
Maddox William K.
Chambers A. Michael
Duzan James R.
Fox John C.
Halliburton Services
Kennedy Neal R.
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