Sealing devices

Details Sealing devices Sealing devices

1979-08-01

1981-06-23

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 1, 277 72FM, 277129, 285 15, 285 18, 285295, F16J 1506, F16L 5518

Patent

active

042746400

ABSTRACT:
A sealing device for insertion in a flanged pipe coupling comprises a split ring with an annular sealing member seated in a groove in one axially facing side of the ring. At intervals around the ring there are screws which project radially inwardly into the base of the groove to co-operate with the concealed face of the sealing member. This face and the adjacent screw ends combine in a wedging or camming action as the screws are turned to urge the sealing member out from the groove. When placed between the flanges of a pipe coupling this action forms an effective seal which can be completed by injecting sealing compound through the ring. The ring, if not the sealing member, is re-usable if the seal has to be broken.

REFERENCES:
patent: 1989644 (1935-01-01), McKee
patent: 2283974 (1942-05-01), Dillon
patent: 2340016 (1944-01-01), Pruiett
patent: 3620554 (1971-11-01), Ward et al.
patent: 3770301 (1973-11-01), Adams
Machine Design, periodical, issue of Jun. 21, 1962, p. 180, "Joints For Cylindrical Sections."

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