Heat-exchange coil assembly
CA 2270800 A1 · Owner: Maruyama, Noboru · Inventors: Maruyama, Noboru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a heat-exchange coil assembly making it possible to enlarge a heat conduction area within a limited volume by lowering a pitch between heat-exchange coils to a minimum level without providing a welding space. The heat-exchange coil assmebly comprises an inlet header 2 at an edge section thereof an inlet tube 3, for inletting a heat exchange medium provided in a drum section of a heat exchanger, an outlet header 4 located with a space from the inlet header at an edge section thereof and a plurality of heat-exchange coils with the outlet tube for outletting a heat-exchange medium from a drum section inlet header 2, and outlet header 4 communicated to each other …
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
- Filed May 4, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2021.
- 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.