Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2006-10-17
2006-10-17
Lee, Edmund H. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S334000, C264S335000
Reexamination Certificate
active
07122144
ABSTRACT:
An integral formation of a water conduit connector for sports water bags includes the following steps: 1) manufacturing molds, which comprises a hole allowing the core mold to go inside, a sprue, positioning holes, and top rejecting holes going through to the mold cave, inside of which is provided with threaded grooves and pipe neck portions; 2) disposing and positioning the water hose in the cave formed by the molds; 3) closing the molds and inserting a mobile core mold from the inlet into the molds, such that the core mold will stretch into the hose to serve as a padding for the interior wall of the hose; 4) injecting liquid hard plastic material from the sprue into the cave of the molds, such that a threaded connecting base can be integrally formed at the end of the hose; 5) detaching the molds; and 6) blowing high pressure air from the free end of the hose to force the core mold detaching from the interior wall of the hose, accordingly a firmly connected, integrally formed hose with a threaded connecting base is completed.
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Lee Edmund H.
Lei Leong C.
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