Apparatus for manufacturing reinforced hoses
CA 1189267 A · Owner: Toyoda Gosei Co. Ltd. · Inventors: Mitsui, Kenichi; Murakawa, Shoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an apparatus for manufacturing reinforced hoses a, reinforced layer forming device is concentric with the material efflux port of an outer tube extruder and an inner tube extruder so that the inner tube formation, the reinforcing layer formation and the outer tube extruding can be performed continuously and substantially simultaneously on a torpedo extending beyond the outlet end of an inner die of the inner tube extruder. In order to obtain the reinforcing layer of uniform stable spiral structure a spiral device as a reinforcing layer forming device has an inner spinner and an outer spinner, each having a frusto-conical shape and free end portions of the inner and outer spinners are …
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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 25, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 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.