Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1994-06-21
1996-08-06
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 35, 277 38, 277 53, 277152, F16J 1534, F16J 1532
Patent
active
RE0353094
ABSTRACT:
A sealing device comprising a projected portion having a rubber-like elastic member on the outer periphery of a seal member, an outer cylindrical portion extending toward the seal member on a flange portion of a sleeve member. This outer cylindrical portion covers an opening formed between the seal member and the flange portion, thereby preventing entry of dust. The outer cylindrical portion is further provided on the tip thereof with a bend portion which can be engaged with the projected portion. The projected portion, the outer cylindrical portion, and the bend portion form a small clearance which serves as a labyrinth seal. The projected portion is fixedly fitted with a projection ring for covering the opening formed between the seal member and the flange portion of the sleeve member so that the free end portion of the projection ring can be engaged with the flange. This free end portion of the protection ring and the flange portion form a small clearance, and this small clearance serves as a labyrinth seal.
REFERENCES:
patent: 3510138 (1970-05-01), Bowen et al.
patent: 4226426 (1980-10-01), Messenger
patent: 4252329 (1981-02-01), Messenger
patent: 4432557 (1984-02-01), Drucktenhengst
patent: 4448426 (1984-05-01), Jackowski et al.
patent: 4981303 (1991-01-01), Matsushima
Matsushima Noboru
Wada Noriyuki
DePumpo Daniel G.
NOK Corporation
LandOfFree
Sealing 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 Sealing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealing device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2182801