Method of and apparatus for freezing food
CA 1300420 C · Owner: Usui, Takayuki · Inventors: Usui, Takayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and an apparatus for freezing food wherein the food is wrapped in a film which is nonpermeable to water and the wrapped food is immersed in flowing brine of sequentially different temperature. A brine tank is provided to contain the brine and a conveyor transferred the wrapped food through the tank. A plurality of brine-injecting nozzles are disposed along the food passage defined by the conveyor so as to inject the brine of different temperatures against the food passage.
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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.