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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR CLEANING MOLD VENT IN MOLD OF INJECTION MOLDING MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/136562
Kind Code:
A1
Abstract:
A method of cleaning a vent in a mold stack of an injection molding machine includes closing the mold stack, the mold stack having at least one mold cavity for receiving injection material to form a molded article, and a vent including a vent passageway in fluid communication with the mold cavity. While the mold stack is closed and the mold cavity is empty of injection material, a first stream of pressurized gas is forced through the vent passageway, the first stream of pressurized gas clearing away debris from the vent.

Inventors:
SCHAD, Robert D. (345 Riverview Drive, Toronto, Ontario M4N 3C9, M4N 3C9, CA)
Application Number:
CA2019/050037
Publication Date:
July 18, 2019
Filing Date:
January 10, 2019
Export Citation:
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Assignee:
NIIGON MACHINES LTD. (372 New Enterprise Way, Vaughan, Ontario L4H 0S8, L4H 0S8, CA)
International Classes:
B29C45/24; B29C45/34
Domestic Patent References:
WO2012045171A12012-04-12
WO2016149800A12016-09-29
Foreign References:
EP2739451B12016-10-26
Attorney, Agent or Firm:
BERESKIN & PARR LLP/S.E.N.C.R.L., S.R.L. (40 King Street West, 40th FloorToronto, Ontario M5H 3Y2, M5H 3Y2, CA)
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