System of hot and immediate water for tap-water and energy saving
CA 1267586 C · Owner: Harel, Ze'Ev · Inventors: Harel, Ze'Ev
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention consists in a distributing unit to be connected to a central hot water supply system said, unit comprising a housing consisting of two longitudinally extending pipes located one within the second a number, of primary pipes located in pre-determined distances and extending perpendicularly to said longitudinal pipes and terminating in the outer one; and secondary pipes extending within said primary pipes and terminating in the inner one of said longitudinal pipes. The invention also consists in a central hot water supply system which comprises such distributing unit.
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 April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 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.