Apparatus for preforming brassiere pads

Details Apparatus for preforming brassiere pads Apparatus for preforming brassiere pads

1974-05-28

1976-03-30

Shore, Ronald J.

Plastic article or earthenware shaping or treating: apparatus

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

Coacting shaping surfaces

128481, 156245, B29C 300

Patent

active

039472078

ABSTRACT:
A method and apparatus for fabricating a conical seamless bra pad preform for subsequent molding into a finished pad. The material used is fiberfill or the like and a blank, cut from such a sheet, or from a sandwich of two sheets, is indented by a conical member which has pins spaced over the surface of the cone for engaging the material. Variable thinning of the material is achieved by the action of the pins in engaging the material successively. A second embodiment involves a series of coaxial rings to grasp the blank. Non-uniform displacement of the ringsets causes the desired uneven stretching of the blank. Permeating the fiberfill sheet with cold acrylic resin prior to the curing of the preform in a mold counteracts deterioration of the bonding of the individual fibers which occurs during the intermediate drawing process.

REFERENCES:
patent: 2981976 (1961-05-01), Maier
patent: 3232246 (1966-02-01), Nishkian
patent: 3434478 (1969-03-01), Liebowitz et al.
patent: 3597800 (1971-08-01), Silverman

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