Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Forming articles by uniting randomly associated particles
Reexamination Certificate
2006-03-28
2006-03-28
Theisen, Mary Lynn (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Forming articles by uniting randomly associated particles
C264S115000, C264S120000, C264S122000, C264S911000, C264S914000
Reexamination Certificate
active
07018582
ABSTRACT:
A method for forming an article in which thermoplastics materials are used as the binding agent. Materials (21) are shredded in a shredder (1), compressed in a compressing chamber (15) and moulded in a moulding chamber (16, 17, 19, 20, 26, 27). The thermoplastics material is heated whilst the material is held under compression and then cooled to bind the material together. In one embodiment superheated steam is supplied via tubes (31) having apertures there along. In another embodiment superheated steam is supplied via apertures in side walls of the mould (58, 59). Blocks (62, 72) formed by the method and apparatus of the invention may find application as construction materials etc. and have good structural, thermal and acoustic properties.
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Bale Fusion Limited
Merchant & Gould P.C.
Theisen Mary Lynn
LandOfFree
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