Method of joining plastic pipe

Details Method of joining plastic pipe Method of joining plastic pipe

1973-06-21

1976-06-08

Arola, Dave W.

Pipe joints or couplings

With assembly means or feature

Molded joint facilitator

260848, 285370, 285371, 285423, F16L 1302

Patent

active

039618145

ABSTRACT:
An improved heat fused pipe assembly joint is provided using an internally positioned fitting having an annular insert portion substantially the same diameter as the internal diameter of the pipe section to be joined and a shoulder portion having a larger diameter. The pipe section is joined to the fitting by heating the pipe end sufficiently to soften it, heating the insert portion of the fitting so as to soften its exterior wall, inserting the fitting so that the end edge of the pipe section substantially abuts the shoulder portion of the fitting and crimping to cause fusion of the pipe to the fitting. For additional strength, the fused pipe joint assembly may be provided with an externally positioned sleeve.

REFERENCES:
patent: 1996069 (1935-04-01), Honel
patent: 2364192 (1944-12-01), Charlton et al.
patent: 2725246 (1955-11-01), Weinhold
patent: 2842125 (1958-07-01), Stephony
patent: 3219728 (1965-11-01), Joris et al.
patent: 3768841 (1973-10-01), Byrne
Rubber World, "Butyl Groffed to Polyethylene Yields Thermoplastic Elastomer" 6pp pp. 59-64, vol. 163 No. 1.

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