Lattice gate for drop injection molding
CA 2354124 A1 · Owner: The Goodyear Tire & Rubber Company · Inventors: Miller, Mark Russell; Vogliano, Robert Henry; White, John Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed towards the hybrid combination of a drop gate, injection molding system and a lattice gate. The lattice gate is located prior to the orifice, of the drop gate. The lattice gate is comprised of a series of cross-direction flow, channels through which the rubber flows with mixing of the rubbers at the , intersections of the flow channels. This hybrid molding system permits shorter cure times and, improved process cycle time for curing rubbers.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.