Non-spherical ball valve
CA 1049481 A · Owner: Itt Industries · Inventors: Natalizia, Angelo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure In a top entry ball valve, a ball having a bore therethrough is provided with chamferred edges around the periphery of the bore at both the inlet and outlet ends. In this manner, due to the geometric configuration of the valve seats compression sealing takes place only when the valve is closed. When the valve is open, the chamferred edges merely engage the valve seats thereby, allowing easy insertion or removal of the ball/seat assembly.
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 February 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 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.