Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – With subsequent cutting – grooving – breaking – or comminuting
Patent
1992-09-03
1995-05-09
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
With subsequent cutting, grooving, breaking, or comminuting
264109, 264120, 425325, 425381, B29C 4700
Patent
active
054137462
ABSTRACT:
A method for molding shaped products from particles of vegetable origin which have a size of 0.002 to 10 mm at a moisture content of 4 to 15%. The method includes the steps of mixing a filler containing particles of vegetable origin and a binder which is obtained from hemicelluloses released from particles of vegetable origin upon molding. The briquettes are formed from the resultant mixture with an axial passageway then packed and transferred to a molding zone where a continuous shaped blank is obtained by joining each successive packed briquette to the preceding one under a specific pressure of 2 to 50 MPa and a temperature in the range of 160.degree. to 350.degree. C. A counterpressure equal to at least the molding pressure is generated as each successive packed briquette is joined at the molded end of the continuous molded blank. Then products of required length are cut from the resultant continuous shaped blank. An apparatus for carrying out the method includes a chamber (4) for molding the briquettes. The chamber includes two multi-faceted truncated pyramids (15, 16) joined together along the perimeter of their minor bases, the side facets of which are rigidly secured to the frame so that the geometric axes of the pyramids (15, 16) coincide with the molding axis (X--X) of the continuous blank.
REFERENCES:
patent: 3245867 (1966-04-01), Clarke
patent: 3874207 (1975-04-01), Lemelson
patent: 4060580 (1977-11-01), Pampel
patent: 4339405 (1982-07-01), Paszner
patent: 4358418 (1982-11-01), Heggenstaller
patent: 4645631 (1987-02-01), Heggenstaller et al.
patent: 4935182 (1990-06-01), Ehner et al.
patent: 5017319 (1991-05-01), Shen
LandOfFree
Method for molding shaped products and an apparatus for carrying 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 molding shaped products and an apparatus for carrying, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for molding shaped products and an apparatus for carrying will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1703513