Hose bibb vacuum breaker
CA 1282298 C · Owner: Franklin, Brian Thomas · Inventors: Franklin, Brian Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a vacuum breaker and backflow prevention device for a faucet comprising a body member having a tubular outlet portion integrally joined by a web to a tubular inlet portion of larger diameter than the outlet portion the web, having a plurality of vent holes therethrough and peripherally supporting a flexible, resilient diaphragm and overlying plate member. The plate member has an outer region provided with a plurality of through holes and a central depending shank portion extending through a central hole in the diaphragm. The tubular inlet portion has internal screw threads for attachment to a faucet outlet member whereby the plate and diaphragm are retained in the tubular inlet …
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 April 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 2008.
- 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.