Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including both heating and cooling means
Reexamination Certificate
2010-09-24
2011-12-27
Crispino, Richard (Department: 1747)
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Including both heating and cooling means
C425S385000, C425S389000, C425S405100, C425SDIG019
Reexamination Certificate
active
08083514
ABSTRACT:
In a uniform-pressure shaping apparatus and system, the system comprises a uniform-pressure shaping apparatus, a vacuum unit and a fluid circulation unit, and the apparatus comprises a first cavity and a second cavity, each including a sealed pressure chamber, a heat conduction film and a template. An object to be imprinted is put on a pattern-imprinting surface of the template. When the first and second cavities get close to each other, the vacuum unit vacuums the space between the pattern-imprinting surfaces of the two templates. Meanwhile, the fluid circulation unit drives a hot fluid to pass through the two sealed pressure chambers. With the iso-pressure characteristic of the hot fluid, the object to be imprinted is heated and pressed uniformly until a desired shape is formed, and then a cold fluid is driven to pass through the two sealed pressure chambers to cool the object to be imprinted.
REFERENCES:
patent: 7195734 (2007-03-01), Heidari
patent: 7204686 (2007-04-01), Chung et al.
patent: 7388178 (2008-06-01), Hennessey
Chuang Yuan-Li
Kao Ming-Tze
Chenming Mold Ind. Corp.
Crispino Richard
King Anthony
Nguyen Thukhanh
WPAT, P.C.
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