Continuous molding apparatus with cover belt

Details Continuous molding apparatus with cover belt Continuous molding apparatus with cover belt

1978-06-12

1980-07-29

Lowe, James B.

Plastic article or earthenware shaping or treating: apparatus

Three or more endless surfaces cooperating to define a...

425371, 425817C, B29D 2700

Patent

active

042148642

ABSTRACT:
Rigid synthetic foam is expanded, molded and cured in an endless mold formed by opposed spaced horizontal belt conveyors with side dams. To obtain a smooth finish on the products, a top cover belt and a bottom cover belt are employed to span the rigid slats of the conveyors, respectively. The top cover belt is stretched tightly and smoothly when the endless conveyors approach each other at the entrance to the pressure mold, by means of a downwardly depending continuous wedge shaped member along each side margin of the cover belt that cooperates with an upwardly opening correspondingly wedge shaped recess in the side dam. To obtain different thickness products, spacer blocks may be employed between the side dam and the lower conveyor.

REFERENCES:
patent: 2817875 (1957-12-01), Harris et al.
patent: 2836285 (1958-05-01), Muller
patent: 2929793 (1960-03-01), Hirsh
patent: 3408690 (1968-11-01), Jacob
patent: 3700368 (1972-10-01), Wells
patent: 3824057 (1974-07-01), Kornylak et al.
patent: 3830604 (1974-08-01), Korpela
patent: 3914084 (1975-10-01), Kornylak
patent: 3994648 (1976-11-01), Kornylak et al.

Affiliated with

Also associated with

Rating

Continuous molding apparatus with cover belt does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous molding apparatus with cover belt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous molding apparatus with cover belt will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-902625