Wetting agent injection system
CA 1201641 A · Owner: Little, Ralph V. · Inventors: Little, Ralph V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE, Wetting Agent Injection System, ABSTRACT OF THE DISCLOSURE A wetting agent injection system is shown according to the preferred embodiment of the present invention utilized with firefighting apparatus having a positive pressure pump. The purpose of the system is to automatically inject a wetting agent into the pump during its normal firefighting operation. The system is controlled by flow switches located on one or more discharge lines of the pump, by a float switch in the wetting agent supply tank and by regulated air pressure in the wetting agent supply tank. When the flow switches detect water flowing and when the float switch does not detect an empty supply tank, they activate …
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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 March 11, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 2003.
- 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.