Two-way diverter check valve
CA 2174148 C · Owner: Soszka,Adam · Inventors: Soszka,Adam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A two way check valve used in a water supply system includes a hollow valve body forming a valve chamber with first and second valve seats located in this chamber. The body has an inlet and two outlet ports. A valve or gate member is mounted in the valve body and is capable of pivoting between the first valve seat and the second seat. An elongate coil spring biases the valve member to pivot towards and engage the first seat. Water can flow under pressure from the inlet to a first of the outlet ports but not to the second outlet port. Water can flow in a reverse direction into the first outlet port and is diverted by the valve member out through the second outlet port. The reverse flow is …
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 April 15, 1996 and granted August 14, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2018.
- 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.