Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1995-05-12
1996-03-12
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 55, 277 56, 277 57, 277 30, 277178, 277 11, F02F 1100, F16J 1548
Patent
active
054980062
ABSTRACT:
A mechanical labyrinth seal for rotating shafts having first and second ring members. The first ring member, includes a series of annular axially extending grooves and flanges. The second ring member is adopted for insertion into said first ring member with a plurality of complimentary inwardly extending flanges and grooves to form a well known labyrinth seal. There is a slot or channel through the labyrinth or maze connecting the exterior atmosphere to the interior of the seal assembly. The second ring member is adapted to rotate with the shaft and includes an annular recess near the shaft and inwardly toward the housing. There is a plurality of radial holes drilled in the first ring member to be opposite the recess in said second ring member and a plurality of pin members are inserted into the holes in said first ring member and are inserted into the recess of said second ring member. The recess being slightly larger in axial direction than the pin members. Thus, the seal permits axial movement of the shaft while maintaining the labyrinth seal integrity and during a predetermined amount of movement, and upon reaching the limit of said movement, the pins accommodate the axial thrust of the shaft movement. The pins are made of a material having natural lubricity and have only point contact with the walls of the recess, thereby reducing the amount of friction and wear in absorbing the axial thrust.
REFERENCES:
patent: 3350104 (1967-10-01), Hynes
patent: 4706968 (1987-11-01), Orlowski
patent: 4890941 (1990-01-01), Calafell, II et al.
patent: 5171023 (1992-12-01), Scott et al.
patent: 5335921 (1994-08-01), Orlowski
patent: 5378000 (1995-01-01), Orlowski
Cuchlinski Jr. William A.
Hwang Keith
Inpro Companies, Inc.
LandOfFree
Pinned unitary bearing seal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pinned unitary bearing seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pinned unitary bearing seal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2095889