Pneumatic control front valve
CA 2093863 A1 · Owner: Omal Di Bonomi A. & C. S.A.S. · Inventors: Bonomi, Agostino
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cut-off valve for fluids comprising a stopper (13) fixed in the valve body contiguously to one of the passages (11,12) for the inflow and outflow of fluid a, valve seat (16c) displaceable between said two passages and designed to move close to or away from said stopper (13), thus providing the closing and opening of the valve. The valve includes a pneumatic actuator (16a 18) which provides the movement of the valve seat (16c) to open and/or closed position, the said valve seat being defined by a portion of the said pneumatic actuator. Fig. 1
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 13, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 13, 2015.
- 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.