Joints and connections – Screw or cam
Patent
1982-11-26
1985-06-11
Kundrat, Andrew V.
Joints and connections
Screw or cam
403265, E21B 1700
Patent
active
045225290
ABSTRACT:
A sucker rod used in pumping liquids from subterranean oil or water wells is formed of plastic material having pre-stressed reinforcing fiber strands or roving therein, and a method of manufacturing same.
REFERENCES:
patent: 2827414 (1958-03-01), Bussard et al.
patent: 4063838 (1977-12-01), Michael
patent: 4155791 (1979-05-01), Higuchi
patent: 4205926 (1980-06-01), Carlson
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