Float valve
CA 1204648 A · Owner: Roberts & Associates Water And Waste Treatment Limited · Inventors: Roberts, Charles G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A float valve mechanism for a cistern or tank comprising a housing defining a closed chamber having an inlet port connected to an inlet pipe to the cistern or tank, an outlet port from the chamber having a valve seat surrounding the port. A valve member passes through the opening and has a valve head located within the chamber the, valve head being integrally formed preferably from a, plastic material, with a lever which is pivotal about axis and carries a float. The valve head is pivotally movable in an integral manner with the lever along a path passing through the outlet port of the chamber. Water pressure within the chamber normally urges the valve to the closed position and the weight …
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 20, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 2003.
- 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.