Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1997-01-14
2000-08-15
Smith, Lynette R. F.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
26432812, 264DIG83, B29B 700
Patent
active
061031755
ABSTRACT:
The invention relates to a process for manufacturing injection moulded objects of thermoplastic material by injecting molten thermoplastic material into a mould from at least two distinct injection points whereas the flows of molten material from each injection point each fill part of the mould and flow together to fill the entire mould while still in molten state, wherein objects having a size of more than 80 cm along each of its three dimensional axes are produced by providing at least two distinct injection points at opposite sides of the mould. The invention also relates to injection moulding equipment for the manufacture of moulded objects of thermoplastic material, comprising at least two distinct injection points provided at opposite sides of a single mould assembly. The invention further also relates to threedimensional moulded objects of thermoplastic material having a size of more than 80 cm along each of its threedimensional axes.
REFERENCES:
patent: 4399093 (1983-08-01), Kirby et al.
patent: 4450132 (1984-05-01), Ettema et al.
patent: 4526821 (1985-07-01), McHenry et al.
Webster's New Riverside University Dictionary, Houghton Mifflin Company, Boston, pp. 83, 418, and 825, 1994.
Brumback Brenda G.
Creighton Wray James
Innova Packaging Systems N.V.
Narasimhan Meera P.
Smith Lynette R. F.
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