Poultry watering valve
CA 1309905 C · Owner: Johnson, Dwight N. · Inventors: Johnson, Dwight N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A poultry watering valve includes a housing including a body and cap defining a recess with a valve seat at its upstream end. A unitary seal member in the chamber includes a valve member portion urged by a spring against the downstream side of the valve seat. The seal member also includes a restrictor pin extending in an inlet bore upstream from the valve seat and a shank carring an operating stem setending through the valve outlet. The cap may be detached from the body for access to the seal member and spring without removing the body from the water supply conduit.
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, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 2009.
- 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.