Expansion tool device for pliers or machine for producing...

Details Expansion tool device for pliers or machine for producing... Expansion tool device for pliers or machine for producing...

2011-04-12

2011-04-12

Crispino, Richard (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

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

Rod or tubular preform

C425S467000, C425SDIG021, C072S393000

Reexamination Certificate

active

07922475

ABSTRACT:
The present invention is an expansion tool device for pliers or machine for producing sockets at the ends of pipes made out of plastic or composite material, used in the field of plumbing. The device includes a cylindrically-shaped ferrule formed by the tightening of several sector-shaped chucks. The chucks are movable in the radial direction under the action of the insertion between them of a tapered needle movable in axial translation through the actuation of the pliers or machine. The chucks are allowed to pass from a tightened position to a separated position. In an integrated way or in a unit designed capable of being intercalated between the ferrule and the pliers or machine, there is an automatic driver for the ferrule, when the ferrule passes from the separated position to the tightened position, directly or indirectly, in axial swivelling according to a portion of a turn.

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