Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1989-07-06
1991-05-28
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 95, 277173, F16J 1534
Patent
active
050187490
ABSTRACT:
A slide ring seal to seal about a shaft with respect to a housing, including a slide ring 4 made of PTFE pressed against a counter surface 3, which is relatively rotatable, by means of pressure P of the medium to be sealed and basically extends in radial direction. The slide ring 4 has a basically rectangularly defined cross-sectional profile having a radially internal or radially external circumference surface 6, 5 basically extending parallel to the axis of the slide ring seal. The slide ring 4 is provided with a sealing edge 7 axially extending beyond the profile of a major portion of the cross section of the slide ring towards the counter surface and formed during manufacture. The sealing edge 7 has a diameter which is basically identical with the diameter of the circumference surface 6 exposed to pressure P of the medium to be sealed and it can be resiliently pressed to be surface planar with the profile of slide ring 4 by means of pressure P.
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Cuchlinski Jr. William A.
Cummings Scott
Firma Carl Freudenberg
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