Maximum liquid level control valve
CA 1110951 A · Owner: Brown, Harley D. · Inventors: Brown, Harley; Brown, Harley D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A maximum liquid level control valve for limiting the flow of liquid petroleum gas into a tank having a valve body, a float pivotally attached to the valve body a closure, flap, a spring acting between the valve body and the closure flap, and a cam device movable by the float. The control valve which is mounted to a flange welded to the side wall of the tank has a valve seat and a passage for liquid to flow through the valve body into the tank. The closure flap is movable toward the valve seat to a closed position and away from the valve seat to an open position. The closure flap is movable to the closed position under incoming liquid pressure. When the liquid level in the tank is below the …
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 October 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 1998.
- 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.