Seal for a joint or juncture – Seal between relatively movable parts – Close proximity seal
Patent
1996-12-13
1999-04-13
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Close proximity seal
277423, F16J 1532
Patent
active
058935657
ABSTRACT:
In a machine in which a rotating shaft extends into a housing through a gland, the shaft being rotated in only one direction, the housing containing lubricant, the gland including an opening of substantial length with an annular radially inwardly extending flange at an axially inner end, an anti-leakage device comprises a sleeve mounted on and around the shaft closely but to permit rotation of the shaft, and mounted against rotation in the gland opening. The sleeve has an annular seat, in which an O-ring is mounted, and a helical groove in a surface contiguous the shaft, the groove being formed in a direction with respect to the direction of rotation of the shaft to move fluid in a direction toward the housing. The clearances between the shaft and housing when the shaft is not rotating are such as to prevent the lubricant in the housing from leaking out.
REFERENCES:
patent: 924897 (1909-06-01), Emmet
patent: 1072421 (1913-09-01), Brown
patent: 1493598 (1924-05-01), Buckwalter
patent: 2606779 (1952-08-01), Jagger
patent: 3131942 (1964-05-01), Ertaud
patent: 3843140 (1974-10-01), Mayer et al.
patent: 3912284 (1975-10-01), Gosling et al.
patent: 3915519 (1975-10-01), Lautner et al.
patent: 3975026 (1976-08-01), Boyle et al.
patent: 4144950 (1979-03-01), Moyer et al.
patent: 4471963 (1984-09-01), Airhart
patent: 5291089 (1994-03-01), Snider et al.
patent: 5462420 (1995-10-01), Stehr et al.
Hill Jason J.
Tevaarwerk Joseph L.
DePumpo Daniel G.
Emerson Electric Co.
LandOfFree
Anti-leakage device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anti-leakage device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-leakage device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-221198