Pivotal ball check valve
CA 1112123 A · Owner: Manchester, Luther L. Jr. · Inventors: Reneau, Bobby J.; Manchester, Luther L. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ball valve housing including a main housing section and an actuator housing section wherein a ball valve is mounted in the actuator housing section for movement into the main housing section, the ball valve being pivotally connected to an actuator shaft for axial and rotational movement to a seated position against one of two opposing annular seating surfaces in the main housing section.
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 November 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 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.