Plastic article or earthenware shaping or treating: apparatus – Shaping surface including means to release or remove product... – By means releasing article from interiorly placed shaping...
Reexamination Certificate
2006-10-17
2006-10-17
Del Sole, Joseph S. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Shaping surface including means to release or remove product...
By means releasing article from interiorly placed shaping...
C425S441000
Reexamination Certificate
active
07121823
ABSTRACT:
A Mold assembly for forming a plastic article includes a fixed plate, a female mold, a male mold, a first sliding mechanism, a second sliding mechanism, a following block, a threaded pole, and a shaft. The male mold defines a slot. The first sliding mechanism includes a first slider received in the slot and a first inclined pin secured to the fixed plate. The second sliding mechanism includes a second slider received in the slot and a second inclined pin secured to the female mold. A molding cavity is formed in the second slider. The following block for withstanding the second slider is fixed to the female mold. The threaded pole is inserted into the molding cavity for forming an internal thread of the plastic article. An end of the shaft is connected to a driver and the other end is connected to the threaded pole to bring it rotation. While opening the mold assembly, firstly, the first inclined pin pushes the first slider sliding rearward to allow the threaded pole unscrewed. Then the second inclined pin pushes the second slider sliding rearward to make the second slider break away from the molded plastic article. Thereby it facilitates taking out the molded plastic article from the mold assembly.
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Chen Chihyu
Wang Lobo
Cheng Uei Precision Industry Co. Ltd.
Del Sole Joseph S.
Luk Emmanuel S.
Rosenberg , Klein & Lee
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