Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1991-04-02
1995-01-10
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 27, 277152, 285110, F16J 1532
Patent
active
053800176
ABSTRACT:
Sealing ring of an elastic material, for use in a pipe coupling in which the ring is placed in a radially inwardly open peripheral groove and is retained in said groove by means of a supporting ring(6) which sealing ring in each radial cross-section is the shape of an inwardly open, essentially rectangular trough with a circular bottom (2), a projecting lip (8) being provided which runs inwards at an angle from the end of the first circumferential wall of the trough, the free end of which lip lies at a radial distance from the axis of symmetry of the ring which is smaller than the external radius of the push-in end part of a pipe to be coupled and at the end of the second side wall of the trough, the free end of which lip lies at a greater distance from the above-mentioned axis than the free end of the first lip, the second lip being provided with a run-on face (10) which runs from a point near the bottom of the lip in the direction of that axis to an end point which lies at a distance from the axis which is smaller than the distance between the axis and the free end of the second lip, while the trough is of a depth which is greater than the radial thickness of the supporting ring, so that in the fitted state and with a push-in end part pushed through the ring an open space (14) is present between the supporting ring and the outwardly facing faces of the first and second lip.
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Leeuwenburg Ewout
Van Kooij Robert J.
Cuchlinski Jr. William A.
Nyloplast Europe B.V.
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