Seat block and valve device
CA 2599779 C · Owner: Kabushiki Kaisha Kawasaki Precision Machinery · Inventors: Ninomiya, Makoto; Nomichi, Kaoru; Funakubo, Yuko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A seat block capable of simply and reliably maintaining intimate contact property of a seal section without being affected by use conditions. A seat section forming body (43) is provided in a housing (67) having a valve path , (66) formed in it such that a piston (28) for opening and closing the valve path (66) can be seated on the seat section forming body (43). A spring member (23) applies elastic force to the seat section forming body (43) to hold it in cooperation with the housing (67).
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
- Filed February 28, 2006 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.