The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 1995
Filed:
Sep. 13, 1993
Paul Y Boucher, Tecumseh, Ontario, CA;
David J Koscic, Tecumseh, Ontario, CA;
John R Ford, Tecumseh, Ontario, CA;
Other;
Abstract
An apparatus for injection molding plastics material has an injection unit for delivering a plasticized melt through a nozzle, a press unit for urging a mold together at a predetermined pressure, a mold mounted in the press unit and a programmable controller operably connected to the injection unit and the press unit for automatically controlling the operation of the apparatus for repetitively producing uniform articles. The mold has a stationary mold section and a moveable mold section. The press unit is adapted for reciprocating the moveable mold section between an open position and a closed position. The stationary mold section has a plurality of ports at pre-selected points. Each port has a controllable gate for selectively opening and closing the ports for passing melt to a mold cavity until the melt fully occupies the mold cavity while controlling and minimizing melt lines formed when a flow of melt from one of the ports meets with a flow of melt from another of the ports.