Device for forcing two conical flanges of a pipe coupling togeth

Details Device for forcing two conical flanges of a pipe coupling togeth Device for forcing two conical flanges of a pipe coupling togeth

1993-05-19

1996-03-19

Nicholson, Eric K.

Pipe joints or couplings

Packed

Flanged pipe

285411, F16L 2308

Patent

active

054998492

ABSTRACT:
A device for forcing two conical flanges (1, 2) of a pipe coupling together under pressure with a seal (3, 4) between them, comprises a clamping chain with several straps (23) joined together by hinges (10). Thrust pieces (9) each have two flanks for contacting the two conical flanges (1, 2). Each thrust piece (9) is pivotably supported on a respective one of the chain hinges (10) and has on each of its two flanks two spaced supporting zones (16) for contacting the two flanges (I). The position of the thrust piece (9) is thus precisely determined by the support on the chain hinge (10) and the contact with the flanges (I) by the two supporting zones (16). The thrust piece (9) need not transmit any tensile forces in the clamping chain, and it can be small and lightweight.

REFERENCES:
patent: 2640717 (1953-06-01), Scheuring
patent: 3600770 (1971-08-01), Halling
patent: 3661409 (1972-05-01), Brown et al.
patent: 4781406 (1988-11-01), Hubener

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