Integral corrosion resistant manifold
CA 1188478 A · Owner: Mold-Masters Limited · Inventors: Krause, Peter E.F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an improved integral manifold for a sprue gated multi-cavity injection molding system and a method of manufacturing the same. The manifold has an inner body portion which fits into a hollow retaining ring portion to define a circular peripheral space between them. The inner body portion is formed of a corrosion and abrasion resistant material such as stainless steel and has a number of straight melt ducts extending through it from a common inlet to spaced outlets each leading to a central bore in separate heated nozzles. The peripheral space contains an electric heating element surrounded by a highly conductive material such as copper. The manifold is manufactured …
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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
- Granted June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- 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.