Pump systems for liquids
CA 1068581 A · Owner: Jacuzzi Bros. Incorporated · Inventors: Gritz, Darrell D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for pumping of liquid under pressure in, which a pressure switch is adapted to control the starting and stopping of the pump within a safe pressure range and in the, event of malfunction of the pressure switch the service line, and associated plumbing is isolated from the pump to protect against development of pressure in the service line which night damage the plumbing.
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 December 25, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 25, 1996.
- 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.