Apparatus for forming plastic articles

Details Apparatus for forming plastic articles Apparatus for forming plastic articles

1985-06-28

1987-09-08

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

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

Including shaping means comprising fluid pressure contacting...

425397, 425400, B29C 5100, B29C 5142

Patent

active

046921117

ABSTRACT:
Apparatus for forming plastic articles by a thermoform process. A plastic sheet to be formed is die cut to a predetermined shape, heated, and draped over a male mold extending vertically upward. A vacuum is drawn internally of the male mold forming an imprint in the sheet from a die carried on the outer uppermost surface of the mold. A mating female mold is then lowered about the male mold to press the sheet about the conforms of the outer surface of the male mold until the plastic sets, thereby forming the desired object.

REFERENCES:
patent: 2377946 (1945-06-01), Leary
patent: 2974366 (1961-03-01), Bauman
patent: 3121767 (1964-02-01), Welshon
patent: 3341893 (1967-09-01), Edwards
patent: 3507007 (1970-04-01), Martin
patent: 3527854 (1970-09-01), Martin et al.
patent: 3600753 (1971-08-01), Otto
patent: 3682571 (1972-08-01), Greenberg et al.
patent: 3746497 (1973-07-01), Neil
patent: 3784343 (1974-01-01), Iwasaki
patent: 3914104 (1975-10-01), Dean et al.
patent: 3988093 (1976-10-01), Birchenough
patent: 4009981 (1977-03-01), Rosen
patent: 4252518 (1981-02-01), Kiefer

Affiliated with

Also associated with

Rating

Apparatus for forming plastic articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for forming plastic articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for forming plastic articles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2155786