Method for producing a weld-line free injection molded plastic c

Details Method for producing a weld-line free injection molded plastic c Method for producing a weld-line free injection molded plastic c

1992-11-23

1994-09-13

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264154, 264155, 264161, 26432811, 264334, 425554, 425577, B29C 4540, B29C 6900

Patent

active

053466594

ABSTRACT:
An injection molding mechanism and method of its use for the formation in a single sequence of operations of weld-line free cylindrical container body portions having a central opening at one end. The central opening is formed by the removal of the central top sprue portion of the container body. The container body produced by this mechanism can be used as a pressurizable dispensing container.

REFERENCES:
patent: 3114594 (1963-12-01), Sherman
patent: 3570107 (1971-03-01), Denzler von Matt
patent: 3820931 (1974-06-01), Edwards
patent: 4085178 (1978-04-01), McNeely et al.
patent: 4372741 (1983-02-01), Cane et al.
patent: 4772196 (1988-09-01), Asai
Rosato, Dominick Vo, Injection Molding Handbook, 1986, pp. 183-186.

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