Replenishable self contained breathing apparatus
CA 1284604 C · Owner: Mine Safety Appliances Company · Inventors: Lambert, William Malcolm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high pressure breathing gas transfer system is provided where high pressure air from a tank of one SCBA or a central storage supply, can, be quickly transferred directly into the high pressure air tank of a second SCBA. The transfer process, between two SCBA's is accomplished by, attaching a high pressure conduit line between two quick connect check valves situated on the high pressure sides of the SCBA's. The high pressure transfer line has a quick connect coupling attached to each end to enable connection to the check valves. After the line is attached a lever is, depressed on one of the couplings to open the donor check valve. High pressure air then flows out of the donor tank and …
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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 4, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 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.