Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-08-26
1997-07-08
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277212R, F16J 1532
Patent
active
056452861
ABSTRACT:
A bellows portion 3 comprises six ridges 3a (3a1, 3a2, . . . 3a6 as seen from the smaller diameter portion 2), five troughs 3b (3b1, 3b2 . . . 3b5 as seen from the smaller diameter portion 2) and slopes 3c which connect the ridges 3a and troughs 3b. The thickness of each ridge 3a and trough 3b is 0.5-1.45 mm, and the thickness ratio between adjacent and trough 3b (trough/ridge) is (1.0-1.5). The levels of thickness of the ridges 3a and troughs 3b are of the same order when seen in the direction of the axis.
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patent: 5251916 (1993-10-01), Martin et al.
patent: 5295914 (1994-03-01), Milavec
DePumpo Daniel G.
NTN Corporation
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