End-fitting for pipe connection having proper insertion indicato

Details End-fitting for pipe connection having proper insertion indicato End-fitting for pipe connection having proper insertion indicato

1994-06-24

1995-12-05

Nicholson, Eric K.

Pipe joints or couplings

With indicator, alarm or inspection means

285305, 285921, 285321, F16L 3700

Patent

active

054722420

ABSTRACT:
For use in push-in-and-snap pipe connectors, the region of the pipe behind the integral end-flange is raised in diameter. If the pipe is properly inserted, the raised region is concealed inside the body of the fitting; but if the pipe is not pushed fully home into the body, the raised region is visible, and serves to alert the production-line inspector that the joint is not sealed. A snap-in sping clip holds the pipe in the body, and the clip rests against the raised protion to minimise the chance of vibration noise. The flange and raised region are formed in the pipe by axial-press punches and dies.

REFERENCES:
patent: 1159845 (1915-11-01), Kidd
patent: 3315990 (1967-04-01), Kramer
patent: 3584902 (1971-06-01), Vyse
patent: 3625551 (1971-12-01), Branton
patent: 4471978 (1984-09-01), Kramer
patent: 4707000 (1987-11-01), Torgardh
patent: 4884829 (1989-12-01), Funk et al.

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