Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1975-01-30
1976-01-27
Rothberg, Samuel B.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 72R, F16D 306, F16J 1516
Patent
active
039348873
ABSTRACT:
A rotary drilling head assembly having a main body through which an axial bore is formed for sealingly receiving, in an axially rotatable and longitudinally slidable manner, a driving member therethrough, thereby enabling the driving member to be moved longitudinally respective to the head while it is being axially rotated by the turntable.
An outflow passageway conducts fluid flow away from the head, while a second seal means controls fluid flow between the relative rotating parts of the assembly.
REFERENCES:
patent: 2853274 (1958-09-01), Collins
patent: 2927774 (1960-03-01), Ormsby
patent: 3387851 (1968-06-01), Cugini
patent: 3724862 (1973-04-01), Biffle
Bates Marcus L.
Dresser Industries Inc.
Rothberg Samuel B.
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