METHOD AND MACHINE FOR PRODUCING A HOLLOW PRODUCT
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United States of America Patent
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Issued Date -
N/A
app pub date -
Jan 19, 2011
filing date -
Oct 3, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and injection machine for producing a hollow product, such as a urisheath, use of the method for producing a urisheath as well as the urisheath. The machine comprises an annular cavity for receiving a silicone material. The material is injected in a cold state via a coldrun nozzle and cured by heat in the cavity. The cavity has a narrow cross-sectional area over a substantial portion of the cavity and the cavity is connected to a venting area. The cavity has an annular enlarged portion at the proximal portion of the cavity, arranged adjacent said inlet and a groove at the distal portion of the cavity. The narrow cross-sectional area has a decreasing radial dimension towards the distal portion of the cavity. The surface of the cavity is grit blasted.
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