Method for manufacturing foam boards

Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Measuring a weight or volume

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

264 455, 264 53, 264101, 264334, 425 4R, 425149, B29D 2700

Patent

active

045578818

ABSTRACT:
A machine for molding sheets of foamed material includes an upright stationary steam chest having opposing perforated external faces, and a pair of movable assemblies abuttable with the opposite faces of the steam chest to define mold cavities therewith. Each cavity forming assembly includes a mold frame extending normal to a face of the steam chest, and a platen positioned within and coupled to the mold frame. Jackscrews move each mold frame into and out of abutment with the steam chest, and also move each platen relative to its respective mold frame toward and away from the steam chest. A method of molding sheets of foamed material is also disclosed wherein heated polystyrene beads are squeezed by the movable platens to a predetermined thickness to provide a board having the desired dimensions and density.

REFERENCES:
patent: 2041377 (1936-05-01), Schwarz
patent: 2066993 (1937-01-01), McCombs
patent: 2250697 (1941-07-01), Bassett
patent: 2453568 (1948-11-01), Calleia
patent: 3015851 (1962-01-01), Wiles
patent: 3042967 (1962-07-01), Edberg
patent: 3111710 (1963-11-01), Plymale
patent: 3164860 (1965-01-01), Oxel
patent: 3264381 (1966-08-01), Stevens
patent: 3274643 (1966-09-01), Oxel
patent: 3359353 (1967-12-01), Oddi
patent: 3368009 (1968-02-01), Oddi
patent: 4272469 (1981-06-01), Smith
patent: 4456443 (1984-06-01), Rabotski

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for manufacturing foam boards 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 manufacturing foam boards, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing foam boards will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-58064

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.