Perforated beam apparatus
CA 1295145 C · Owner: Ykk Corporation · Inventors: Kasai, Tomoaki; Sugimoto, Isao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A perforated beam apparatus is disclosed for dyeing or otherwise treating fabric materials, the apparatus comprising a horizontally disposed treatment vessel and a perforated cylindrical beam mounted concentrically in the vessel, and adapted to wind thereon layers of cloth tapes, yarns and the like. There are established a main suction stream and a sub-suction stream of treating liquor both, streams flowing form a treatment chamber and merging into a heat exchange chamber. A pressure reserve tank is mounted above the treatment vessel for regulating the pressure therein and taking up air bubbles entrained with the flow of treatment liquor.
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 February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
- 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.