Foam generator adjustable to produce foam having various expansion ratios
CA 1303562 C · Owner: Mine Safety Appliances Company · Inventors: Hoover, Stanley M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A foamaking generator for use on fires and hazardous material spill control, having a nozzle that may be adjusted to direct a foam concentrate stream to cover variable amounts of area of a screen so that low, medium and high expansion ratio foams can be produced using one foam generator.
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 June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
- 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.