Pressure reducer for liquid and compressed gases
CA 1288015 C · Owner: Poliauto Di Pietro Parietti & C. S.N.C. · Inventors: Parietti, Pietro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressure reducer designed to feed gas-driven vehicles, of the type comprising an inlet valve an outlet valve, and a gas by-pass valve wherein, the valvular closing elements are fitted with systems designed to connect areas situated on opposite sides of the said valvular closing elements in order to cancel out the force components due to the gas pressure, and systems designed to regulate the opening of the said valvular elements according to the pressure detected at 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 August 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 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.