Pressure sealing device for high pressure steamer
CA 1069475 A · Owner: Sando Iron Works Co. · Inventors: Sando, Yoshikazu; Ishidoshiro, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressure sealing device for a high pressure steamer. The device comprises a main sealing body including 2 to 5 stages of pressure reducing chambers arranged into one unified body with a textile product passage continuously provided in the middle part of each of the pressure reducing chambers. On opposite sides of each of the upper and lower end openings of the passage provided through the main body there are, disposed a pair of seal rolls which are in pressed contact with each other in such a way as to close the opening.
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
- Granted January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.