Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1983-06-27
1984-11-06
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 30, 277 59, 277 71, 277169, F16J 1518, F16J 1540
Patent
active
044808429
ABSTRACT:
A self-aligning stuffing box for use with a drilling device having a rotatable drill shaft includes a packing gland having an opening therethrough sized for passage of the rotatable drill shaft and includes packing rings for forming a seal between the packing gland and the drill shaft. A generally spherical exterior surface on the packing gland is supported by an interior spherical surface of a socket in a ball-and-socket like manner to enable the packing gland, packing rings and the rotatable drill shaft to pivot about the longitudinal axis of the rotatable drill shaft together. A frame slidably supports the socket and enables the socket, packing gland and packing ring means and rotatable drill shaft to be laterally displaced, with respect to the longitudinal axis of the drill shaft, as a single unit, in order to prevent damage to the packing rings by vibrational movement of the drill shaft during drilling.
REFERENCES:
patent: 2131927 (1938-10-01), Wenzel
patent: 3521890 (1970-07-01), Holmes et al.
patent: 3656820 (1972-04-01), Pensa
patent: 3971565 (1976-07-01), Schickling et al.
patent: 4129306 (1978-12-01), Konno et al.
patent: 4185837 (1980-01-01), Greene
Brest van Kempen Carel J. H.
Mahyera Anil
Sweet Robert M.
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