Mold for manufacturing conduit grommet elements

Details Mold for manufacturing conduit grommet elements Mold for manufacturing conduit grommet elements

1997-02-28

1998-08-04

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Opposed registering coacting female molds

425123, 425125, 425542, 264275, B29C 4514

Patent

active

057889945

ABSTRACT:
A mold is provided for forming a grommet element. The mold includes a stationary portion and an axially movable portion. The grommet element is formed by the steps of installing respective connecting terminals on conduits; forming a conduit assembly from a plurality of individual conduits, and banding together two proximal points of the conduit assembly; introducing the conduit assembly into the lower part of the mold; closing the mold; moving the two proximal points closer together to produce flexural buckling of the conduits in the conduit assembly; introducing an adhesive mass into the mold, under pressure, at an elevated temperature, during a predetermined period of time; injecting the hot adhesive between the conduits of the conduit assembly; cooling the mold to solidify the adhesive; and molding PVC or another thermoplastic elastomer over the adhesive-sealed conduit assembly, to form a grommet element, and joining the thus sealed conduit assembly to a flange or dividing wall.

REFERENCES:
patent: 4030866 (1977-06-01), Madej
patent: 4405083 (1983-09-01), Charlebois et al.
patent: 5356587 (1994-10-01), Mitsui et al.
patent: 5407340 (1995-04-01), Daguet et al.

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