Apparatus for perforating corrugated plastic pipe

Details Apparatus for perforating corrugated plastic pipe Apparatus for perforating corrugated plastic pipe

1977-12-16

1980-05-27

Yost, Frank T.

Cutting

With means to control or modify temperature of apparatus or...

Of tool

83 54, 83337, B26F 108, B26F 308

Patent

active

042044472

ABSTRACT:
An apparatus for perforating the minor diameter or inner corrugation of a transversely corrugated thermoplastic drainage pipe. A plurality of perforations are simultaneously formed in the inner corrugations of the pipe by reciprocally moving heated punches radially into the pipe, removing the punches and then translating the pipe to another position for the next punching step. In an alternative embodiment, the punches are carried by a rotating ring which positions them opposite an inner corrugation and a cam device drives the punch radially into the pipe.

REFERENCES:
patent: 2753001 (1956-07-01), Page
patent: 3355974 (1967-12-01), Carmichael
patent: 3483777 (1969-12-01), Neugebauer
patent: 3654829 (1972-04-01), Anderson
patent: 3683736 (1972-08-01), Loose
patent: 3707102 (1972-12-01), Huppenthal et al.
patent: 3719736 (1973-03-01), Woodruff
patent: 3901113 (1975-08-01), Oltmanns et al.

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