Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means between charger and mold to cut off flow of...
Patent
1990-06-15
1991-11-26
Heitbrink, Timothy
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means between charger and mold to cut off flow of...
251250, 2643289, 425566, B29C 4523
Patent
active
050678930
ABSTRACT:
Injection molding apparatus is disclosed having an actuation system for operation of a shut off valve pin, movably mounted in a valve gate, the system including a first gear rack connected to the valve pin, a first pinion gear driven by the first gear rack connected at one end of a cross shaft, a second pinion gear at the other end of the cross shaft, and a externally mounted two way power cylinder operating a second gear rack to rotate the second pinion gear in mesh therewith so that both pinion gears rotate together, and the valve pin is reciprocated by operation of the power cylinder. The power cylinder is mounted for angular adjustment about the axis of rotation of the pinion gears and cross shaft to enable ready adjustment of the closing position of the valve pin in the valve gate.
REFERENCES:
patent: 3912133 (1975-10-01), Hehl
patent: 4330258 (1982-05-01), Gellert
patent: 4597556 (1986-07-01), Sandling
patent: 4759386 (1988-07-01), Grouw, III
Benefiel John R.
Heitbrink Timothy
LandOfFree
Injection molding apparatus with shut off valve pin actuation sy 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 molding apparatus with shut off valve pin actuation sy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection molding apparatus with shut off valve pin actuation sy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2384224