Back to results
US 4,508,133 AGranted
Protective cover retainer
AssigneeHalliburton Company
InventorSyed Hamid
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeHalliburton Company
InventorSyed Hamid
Estimating the term…
A protective cover comprises a substantially circular cover including a center shear disc surrounded by an annular outer portion, mounted in the fluid end of a plunger-type high pressure pump. The cover is held in place by the retainer assembly of the present invention, which is secured to the fluid end. When subjected to a compressive load by the plunger in excess of a predetermined limit, the shear disc shears from the outer portion along an arcuate boundary of reduced wall thickness between the shear disc and outer portions and the sheared disc is propelled by the pressure into the retainer assembly, striking a plug which in turn forces an impact disc into the end of the retainer, which includes a substantially circular recess therein of lesser diameter than the impact disc. The impact disc is thus sheared as the inner portion thereof enters the retainer recess, the energy from the shear disc being thereby substantially dissipated without harm to the retainer.
A retainer assembly adapted for use with a protective cover for a fluid end of a plunger-type pump adapted to relieve pressure in a cylinder of said pump when said pressure exceeds a predetermined limit, said cover being in fluid communication with said cylinder, said cover including an outer portion;
A retainer assembly adapted for use with a protective cover for a cylinder of a fluid end of a plunger-type pump, said cover including a center shear disc surrounded by an annular outer portion with an arcuate boundary of reduced wall thickness therebetween, comprising:
A method of preventing overpressure in a fluid end of a plunger-type pump, comprising:
Dependencies are inferred from the claim text.