Pipe joints or couplings – With fluid pressure seal – Flexible lip
Patent
1977-11-14
1978-09-26
Callaghan, Thomas F.
Pipe joints or couplings
With fluid pressure seal
Flexible lip
285230, 285235, F16L 4900
Patent
active
041164741
ABSTRACT:
A pipe coupling comprises a flexible insertion socket for inserting thereinto the pipe ends of pipes, particularly those made of mineral materials, that are to be connected together. The insertion socket is in the form of a cylindrical body open at both ends. It has an outside diameter larger than the diameter of either pipe end to be connected by the coupling. There is a packing ring in the form of a resilient, extensible cylindrical member having a central portion and two end portions, the central portion extending over the outer wall of the cylindrical body and the end portions projecting beyond the open ends of the cylindrical body. The packing ring forms an outer casing for the insertion socket. During and after the pipe end is inserted into the coupling, the sealing rings on the end portions of the member forming the packing ring are forced away from their normal position and disposed between the insertion socket and a pipe end to form an inherently stable structural unit with the insertion socket like a sandwich. The insertion socket may be clamped between two sealing rings. An annular rib may also be provided along the inner periphery of the insertion socket between the open ends to serve as a pipe stop. The end portions of the packing ring may also include sealing lips extending in the direction opposite the direction of insertion of the pipe ends, such that when the pipe ends are inserted into the coupling, the sealing lips engage the outer wall of the pipe ends.
REFERENCES:
patent: 1926197 (1933-09-01), Durr
patent: 2726103 (1955-12-01), Slattery
patent: 3334928 (1967-08-01), Schmunk
patent: 3430989 (1969-03-01), Wendt
patent: 3453006 (1969-07-01), Levake
LandOfFree
Pipe coupling does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pipe coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipe coupling will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2085057