Flush valve attachment system
CA 1213405 A · Owner: Kohler Co. · Inventors: Grimstad, Ronald N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flush valve connectable to a wall of a toilet tank is disclosed. In one embodiment there is, a non-circular outlet formed in the bottom wall of the tank. There is also a resilient seal bearing against an upper surface of the bottom wall the seal, surrounding the outlet and having a central bore aligned therewith. A flush valve is provided having a housing that extends through the seal bore and outlet. The housing also has an outwardly extending flange above the seal to trap the seal against the bottom wall, and a radially outwardly extending projection below the bottom wall. The housing is rotatable between a first position in which the projection can pass vertically through the outlet …
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 4, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 2003.
- 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.