Heat exchanger
CA 1268755 C · Owner: Nakamura, Hironobu · Inventors: Kachi, Tadakatsu; Kumazaki, Nobuo; Yokoya, Hisao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A heat exchanger having a plurality of plates disposed in mutual confrontation at a predetermined space interval to separate two fluids to be heat-exchanged; a fin disposed in the space interval among the mutually opposed plates to form a plurality of parallel flow paths for controlling the flow of the two fluids in the space interval, the space interval being formed by the plates being in a plurality of stacked layers, and the section where the fin is present and the empty section where no fin is present being so disposed in the plurality of space intervals in layer form that they may be staggered in the direction of stacking the plates; and a space member provided in each of the space …
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 8, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 2007.
- 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.