Float detecting device for pressurized slurry transfer apparatus
CA 1081343 A · Owner: Hitachi, Ltd. · Inventors: Watanabe, Syosaku; Fujiwara, Koji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for transfer of slurry is provided with cylindrical feed chamber for provisional storage of slurry. A float is located at the interface between the slurry and the driving liquid for transferring the slurry under pressure. The side wall of the feed chamber have small apertures facing each other, in which a signal transmission cover member of non-magnetic material containing a signal transmission coil and a signal receiving cover member of non-magnetic material containing a signal receiving coil are arranged respectively. When the float is interposed between the transmission coil and the receiving coil, magnetic fluxes from the transmission coil are transmitted to the receiving …
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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 July 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 1997.
- 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.