Method for making hollow panels

Details Method for making hollow panels Method for making hollow panels

1977-05-23

1978-07-11

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

264150, 264151, 264157, 264159, 264209, 264210R, 264294, B29D 2303, B29D 2304, B29G 200

Patent

active

041002393

ABSTRACT:
Method for making hollow plastics insulating wall panel. The plastic material, in a flowable form, is continuously forced about a core to form an enclosed central cavity or chamber. The continuous plastic material is then severed and cavity sealed in a vacuum environment before final curing of the resulting hollow insulation product.

REFERENCES:
patent: 1649734 (1927-11-01), Roberts et al.
patent: 3663672 (1972-05-01), Button et al.
patent: 3814783 (1974-06-01), Dardaine et al.
patent: 3900999 (1975-08-01), Callan
Dorian, Six-Language Dictionary of Plastics . . . , Iliffe Books, London (1966), pp. 174 & 175 relied on.

Affiliated with

Also associated with

Rating

Method for making hollow panels does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making hollow panels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making hollow panels will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-262437