Spring means and valve containing same
CA 1069020 A · Owner: Iic Mechanical Products Ltd. · Inventors: Kucenty, Jerzy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spring means for use in a plate-type valve comprises a generally planar spine and spaced apart on opposite sides thereof two planar side members. The side members are integrally formed with the spine and with a plurality of interconnecting planar bars. Resiliently flexible fingers extend from both the spine and the side members angularly with respect thereto and reach their maximum distance from the plane of the spine at different distances from the spine. The invention also embraces a plate-type valve incorporating such a spring means.
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 January 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 1, 1997.
- 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.