Timed flow control valve assembly
CA 1238551 A · Owner: Alopex Industries, Inc. · Inventors: Greskovics, Paul; Chivens, Donald R.; Kelm, Edward C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flow control valve assembly is provided for timing and regulating fluid flow from a valve inlet to primary and secondary fluid outlets. The valve assembly comprises a regulator valve which, upon initiation of fluid flow to the valve assembly, is spring-biased to open the primary and secondary outlets and to modulate the primary outlet flow in a manner maintaining the secondary outlet flow at a predetermined minimum fluid pressure. Upon elapse of a predetermined time interval a timer assembly responsive to the secondary outlet flow triggers an alteration in the spring bias acting on the regulator valve to permit fluid pressure at the valve inlet to shift the regulator valve to a position …
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 June 28, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 2005.
- 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.