Injection mold bushing

Details Injection mold bushing Injection mold bushing

1979-03-16

1981-06-16

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

425567, 425571, B29F 108

Patent

active

042735254

ABSTRACT:
An injection mold bushing which is mounted on the mold and is adapted for sprueless molding. The construction comprises an inner shank and an outer body between which is mounted a heating element for independently controlling the heat at each gate. The material passage is straight and centrally located, minimizing the likelihood of material collecting and degrading in the passage, and making it simple to clear this passage if material build-up occurs. The location of the heater and insulating construction around the bushing insures that the mold will be uniformly cool relative to the material, minimizing distortion of the molded parts.

REFERENCES:
patent: 2456423 (1948-12-01), Jobst
patent: 2461282 (1949-02-01), Jobst
patent: 2804649 (1957-09-01), Hupfield
patent: 3010156 (1961-11-01), Smith
patent: 3189948 (1965-06-01), Whitney
patent: 3577597 (1971-05-01), Draudt
patent: 3632260 (1972-01-01), Moslo
patent: 3661487 (1972-05-01), Susin
patent: 3669596 (1972-06-01), Savory
patent: 3716318 (1973-02-01), Erik
patent: 3767340 (1973-10-01), Driscoll
patent: 3797984 (1974-03-01), Yago
patent: 3819312 (1974-06-01), Arpajian
patent: 3822856 (1974-07-01), Gellert
patent: 3945535 (1976-03-01), Leiste
patent: 3966372 (1976-06-01), Yasuike

Affiliated with

Also associated with

Rating

Injection mold bushing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Injection mold bushing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection mold bushing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-153173