Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to heat or cool
Reexamination Certificate
2006-06-27
2006-06-27
Purvis, Sue A. (Department: 1734)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to heat or cool
C425S547000, C164S250100, C264S328150
Reexamination Certificate
active
07066726
ABSTRACT:
The invention relates to a device for melting and conveying material such as plastic or metal. Said device comprises a conveying channel, which contains an admission opening for the material as well as a discharge opening for the at least partially melted material. The device also comprises heating devices that, between the admission opening and discharge opening, heat the conveying channel and/or the material, and comprises a slide that can move to-and-fro while conveying the material from the admission opening to the discharge opening. According to the invention, the conveying channel is provided with a tubular shape and with two walls and has an inner tube and an outer tube. The slide is provided as a sliding sleeve, which is placed between the inner tube and the outer tube, and is provided in two pieces. In addition, said slide comprises a closing sleeve for opening or closing the conveying channel and comprises a conveying sleeve that can be moved independent of the closing sleeve.
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Giesstechnik Special: “Thermoregulierung von Füllkammern . . . ”in: Aluminum, 73, 1997, 6, S.382/383.
Hengst GmbH & Co. KG
Lahive & Cockfield LLP
Purvis Sue A.
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