Sealing device in a high pressure steamer
CA 1068120 A · Owner: Sando Iron Works Co. · Inventors: Ishidoshiro, Hiroshi; Sando, Yoshikazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sealing device in a high pressure steamer which comprises a pressure reducing chamber disposed between a cloth material inlet port of a drum body of the steamer and rubber seal rolls. The sealing device further comprises a high pressure air supply pipe connected to the pressure reducing chamber; heat resistant seal rolls disposed beneath the pressure reducing chamber at a cloth passing port provided in the pressure reducing chamber on the side of the drum body of the steamer, the heat resistant seal rolls being provided for the purpose of making said pressure reducing chamber into a high pressure air chamber preventing the steam inside the steamer drum body from coming into the chamber; …
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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 December 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 18, 1996.
- 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.