Pipe coupling method

Details Pipe coupling method Pipe coupling method

1991-04-12

1992-07-21

Nicholson, Eric K.

Pipe joints or couplings

Packed

Flanged pipe

285903, 285414, 285401, F16L 2300

Patent

active

051316935

ABSTRACT:
A coupling and methods for interconnecting the ends of spirally ribbed pipe are disclosed. Grooves are formed transversely across two or more ribs of the pipe and a coupling ring is secured to the end of the pipe by lugs or cleats which rotatably engage with the grooves. Contact surfaces of the lugs are angled relative to the grooves to center the coupling ring axially of the pipe. The angular relationship of the grooves and contact surfaces of the lugs draw the ring into abutting contact with the end of the pipe as they rotatably engage the grooves.

REFERENCES:
patent: 735221 (1903-08-01), Dufford
patent: 852478 (1907-05-01), Voris
patent: 2431633 (1947-11-01), Brown
patent: 2438472 (1948-03-01), Calcott
patent: 3315991 (1967-04-01), Davis
patent: 3836183 (1974-09-01), Battle
patent: 4140422 (1979-02-01), Crumpler, Jr. et al.
patent: 4222594 (1980-09-01), Skinner
patent: 4613161 (1986-09-01), Brisco

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