Tool for flaring pipe end portions

Details Tool for flaring pipe end portions Tool for flaring pipe end portions

1978-08-22

1979-12-11

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Rod or tubular preform

425DIG5, B29C 1702

Patent

active

041781481

ABSTRACT:
Tool apparatus is provided for flaring the end portion of thermoplastic pipes and tubes, and includes a flaring head having a forming recess adapted to receive the pipe end portion and a cam edge portion adjacent to the recess for engaging the pipe end portion in a forming action. Mandrel means are threadedly connected with the flaring head for movement of the head toward the mandrel means about which the pipe being formed is clamped. The forming recess is defined by a frusto-conical surface inclined to the axis of the head in cooperation with an oppositely inclined surface, and the cam edge portion is defined between the frusto-conical surface and a side wall portion of the head. The diameter of the apex of the circular V intersection of the recess-defining surfaces is preferably equal to the outside diameter of the pipe.

REFERENCES:
patent: 3516302 (1970-06-01), Muttart
patent: 3584344 (1971-06-01), Bjalme
patent: 3585687 (1971-06-01), Bjalme
patent: 3601852 (1971-08-01), Bjalme
patent: 4108589 (1978-08-01), Bunch

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