Method of joining plastic pipe

Details Method of joining plastic pipe Method of joining plastic pipe

1975-11-12

1977-08-23

Van Horn, Charles E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

29455R, 156294, 156306, 156322, 285371, 285DIG20, 260 47UA, 260 62, F16L 2100

Patent

active

040438570

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: 2958906 (1960-11-01), Youthed
patent: 3035958 (1962-05-01), Wickens
patent: 3263323 (1966-08-01), Maher et al.
patent: 3307997 (1967-03-01), Detrick
patent: 3348863 (1967-10-01), Rinker
patent: 3387864 (1968-06-01), Walters
patent: 3455761 (1969-07-01), Rubel
patent: 3473833 (1969-10-01), Bremer
patent: 3788928 (1974-01-01), Wise
patent: 3972548 (1976-08-01), Roseen

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