Apparatus for forming shaped interlayer blanks

Details Apparatus for forming shaped interlayer blanks Apparatus for forming shaped interlayer blanks

1987-11-17

1988-09-06

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Continuous filament forming or film casting means with...

264178R, 2642102, 425 71, 4251335, 425308, 4253824, B29C 4716, D01D 508

Patent

active

047689390

ABSTRACT:
Apparatus for forming discrete, shaped interlayer blanks comprises, in combination, an extrusion die containing a slot for forming a sheet from thermoplastic melt, means associated with the die for causing a portion of the melt to exit the slot at a greater mass flow rate than that of the remainder of the melt exiting the slot, means adjacent the die for quenching the sheet immediately after forming and frusto-conical pull rolls for forwardly shaping the sheet into arcuate form, the surfaces of said rolls adjacent the edges of greatest circumference positioned to contact the portion of the sheet formed from the melt exiting the slot at the greater mass flow rate.

REFERENCES:
patent: 2937407 (1960-05-01), Richardson
patent: 3003245 (1961-10-01), Nunez, Jr.
patent: 3019475 (1962-02-01), Smith
patent: 3696186 (1972-10-01), Stark et al.
patent: 3912440 (1975-10-01), Koss et al.
patent: 4302172 (1981-11-01), Hogseth et al.
patent: 4476075 (1984-10-01), Brinkmann et al.
patent: 4562023 (1985-12-01), Pabst et al.

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