Manually operated blowout preventer and hydraulic operator there

Details Manually operated blowout preventer and hydraulic operator there Manually operated blowout preventer and hydraulic operator there

1980-10-10

1982-04-20

Spiegel, H. Jay

Valves and valve actuation

Blow-out preventers

251 14, 251 59, 251291, 744248VA, 277127, E21B 3306

Patent

active

043255345

ABSTRACT:
A blowout preventer having a body with a bore and opposing guideways intersecting the bore, a ram in each of the guideways, a cap closing the outer end of each of the guideways, an operating stem connecting to each of said rams, extending through its cap in threaded engagement and having means for engagement by a handle, such as flats on its outer end, a pair of hydraulic motors each having a housing and a rotating shaft, means for securing said motor housings to the body surrounding said guideways, means for connecting said drive shafts with the operating stems to rotate said stems, and means supplying hydraulic fluid to said motors for selective rotation of said shafts and said stems in preselected directions.

REFERENCES:
patent: 1786363 (1930-12-01), Pate
patent: 2593793 (1952-04-01), Rector
patent: 2598062 (1952-05-01), Krecan
patent: 3174355 (1965-03-01), De Craene
patent: 3220282 (1965-11-01), Magos
patent: 3330289 (1967-07-01), Grace
patent: 4062306 (1977-12-01), Wosmek

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