Expansible chamber devices – Piston – Side wall portion includes peripheral axially extending...
Patent
1991-11-12
1994-02-08
Look, Edward K.
Expansible chamber devices
Piston
Side wall portion includes peripheral axially extending...
92244, 92253, 92254, F16J 900
Patent
active
052840840
ABSTRACT:
A lightweight mud pump piston assembly for reciprocating inside of a cylinder. The piston has decreased weight because light weight materials are used to form the majority of the hub which is the heaviest part of the piston. The piston maintains its compressive strength because the critical stress portions of the hub are made with high strength material having higher tensile strength and density than the light weight material.
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Composite Catalog of Oil Field Equipment and Services, 1980-81 Edition, 34th revision, published by World Oil, pp. 5799, 5801, 5803, 5804, 5901, 5902, 7545, 6789.
Pippert Frederick B.
Rogers John T.
Look Edward K.
Nguyen Hoang
Utex Industries, Inc.
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