Airvessels for molding by expansive waves
CA 1332494 C · Owner: De Foronda Fernandez, Vincente Lopez · Inventors: De Foronda Fernandez, Vincente Lopez
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
These improvements consist in the use of a highly elastic membrane (13) as a valve element, fixed by means of flanges 14 and 17 to a support plate 15, conforming an annular chamber 16 which may be pressurized through the conduit 19 to deform membrane 13 towards a closure situation where same falls upon the valve seat 24 an opening, being established in the centre of the membrane-support plate assembly to which is axially coupled an outlet conduit 22 for release or outlet of the residual air present in the diffuser 9.
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 October 18, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 18, 2011.
- 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.