Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Feed control of material en route to shaping area
Patent
1984-08-17
1986-01-07
Weston, Caleb
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Feed control of material en route to shaping area
264 406, 425466, B29F 306
Patent
active
045631425
ABSTRACT:
A worm press extruder or the like includes a worm shaft which conveys a flow medium within a housing cylinder. In order to provide the medium with an appropriate pressure and temperature the worm shaft cooperates with a constriction plate so as to define a gap therebetween. The gap is controlled by heat responsive unit e.g. a bolt of high thermal expansion coefficient which is connected to a stationary portion of the housing as well as to another housing portion which is movable with respect to the stationary housing portion by lever means. Consequently, when the temperature of the bolt is changed its length is altered thus causing the other housing portion which is associated with the constriction plate to shift towards the stationary housing portion. Since the worm shaft is supported by the stationary housing portion and cannot move axially with respect to the latter, the movement of the constriction plate causes a modification of the gap.
REFERENCES:
patent: 3008184 (1961-11-01), Fritsch
patent: 3070836 (1963-01-01), De Haven et al.
Battenfeld Extrusionstechnik GmbH
Dubno Herbert
Ross Karl F.
Weston Caleb
Woodard Joye
LandOfFree
Apparatus for controlling the flow resistance in a screw or worm does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for controlling the flow resistance in a screw or worm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for controlling the flow resistance in a screw or worm will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-110000