Instant hose coupling, with a double-sided shutoff valve
CA 1264781 C · Owner: Gaiti, Giorgio · Inventors: Gaiti, Giorgio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An instant coupling comprises a male element and a female element which comprises a chamber containing a valve provided with a first sealing surface which when pressurised, water is present, rests against a seat and shuts-off water delivery when the male element is not inserted and a second, sealing surface below the first and arranged to rest against a respective seat under the action of any momentary negative pressure arising in the water feed hose in order to prevent undesi-, rable fluids being drawn in when the male element is inserted.
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 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
- 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.