Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – Forming baffle – bottleneck – or handle
Patent
1979-06-29
1980-12-16
Silbaugh, Jan H.
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to shape parison directly by internal...
Forming baffle, bottleneck, or handle
264540, 264541, 264542, 264543, 425150, 425166, 425532, 425540, 4253261, B29C 1707
Patent
active
042394740
ABSTRACT:
A lower mold half is horizontally placed. The top surface of the lower mold half is provided with a first groove of any desired shape, one end of which is closed with the other end having a notch for allowing air to be blown in. An upper mold half has a bottom surface which matches with the top surface of the lower mold half and which is provided with a second groove corresponding to said first groove. Thus, when the upper and lower mold halves are in contact, there is formed a mold cavity defined by the first and second grooves. A nozzle for discharging a parison is disposed above the lower mold half. The relative positional relation between the nozzle and the lower mold half is changed in such a manner that the nozzle follows the first groove without changing the distance therefrom so that a parison can be properly placed in the first groove. If at least two lower mold halves are provided, it is possible to carry out molding operation continuously.
REFERENCES:
patent: 1634160 (1927-06-01), Semple
patent: 2128239 (1938-08-01), Ferngren
patent: 3425092 (1969-02-01), Taga
patent: 3733309 (1973-05-01), Wyeth et al.
Excell Corporation
Silbaugh Jan H.
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