System for loading and unloading fluid tanks containing hazardous fluids
CA 2339733 A1 · Owner: Nimberger, Spencer M. · Inventors: Nimberger, Spencer M.; Ward, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for transferring a hazardous fluid product from a transport tank (10) of a roadway vehicle (12) to a fixed storage tank (14). A flexible transfer hose, assembly (30) has end couplings (34 36) which are detachably connected , between the transport tank (10) and storage tank (14). A gas operated product supply valve, (44) is opened by pressurized gas to permit flow of the hazardous product such as, propane, from tank (10). A gas control valve (46) controls the flow of pressurized, gas to gas operated product supply valve (44). Upon a separation or rupture of flexible hose (31) or couplings (34, 36) the fluid pressure of the hazardous , product in hose (31) is sensed at fluid …
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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
- Filed March 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2023.
- 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.