Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1980-02-19
1981-08-18
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 95, 277152, 277165, 277166, 305 11, F16J 1532, F16J 1536
Patent
active
042842816
ABSTRACT:
PCT No. PCT/WS80/00166 Sec. 371 Date Feb. 19, 1980 Sec. 102(e) Date Feb. 19, 1980 PCT Filed Feb. 19, 1980
A joint sealing structure (12) including an annular seal ring (23) having a sealing portion (28) provided with a sealing lip (31) having a dynamic seal engagement with a joint member sealing surface (18) at all times. The sealing portion is carried on a connecting portion (30) of the seal ring which, in turn, is provided with a base portion (29) mounted in the counterbore of the seal space (15). The stiffener (26) is connected by a connecting portion (27) to a base (25) press fitted in the counterbore surface (20). The base defines an inturned flange (35) providing a bearing for a Belleville spring (24). The Belleville spring is provided with a radial inner portion engaging projecting portions (33) of the stiffener for biasing the sealing portion (28) and lip (31) thereof axially toward the sealing surface (18). The diaphragm is a one-piece element including the stiffener, connecting and base portions and stiffener portion (26) is molded integrally into the sealing portion (28) of the seal ring. The stiffener may be provided with a plurality of distributed openings (38) for providing a positive mechanical bond of the molded sealing portion (28) to the stiffener (26). The Belleville spring may be arranged to pass over center in the range of axial movement between the joint members so as to provide an effectively flat spring rate and thereby provide a stabilized sealing force of the lip (31) against the sealing surface (18).
REFERENCES:
patent: 2657080 (1953-10-01), Johnson et al.
patent: 3086781 (1963-04-01), Hudson et al.
patent: 3110097 (1963-11-01), Yocum
patent: 3614113 (1971-10-01), Burk
Caterpillar Tractor Co.
Ward Robert S.
LandOfFree
Joint sealing structure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Joint sealing structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Joint sealing structure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-34492