Fluid agitator
CA 1286658 C · Owner: Sanjiro, Nagai · Inventors: Mitsuyoshi, Matsushita; Yuji, Yamauchi; Hiroshi, Ohbori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid agitator is provided herein which may stir fluid in a closed space without leakage of the fluid The fluid agitator, has a motive means and a bearing means installed in the closed space. In a first embodiment, namely a fluid agitator employing a electric motor as the motive means, only the stater coil of the motor which is weak in its resistance against high temperatures and humid atmospheres is sealed in a sealing vessel. The sealing vessel may be provided with a cooling device to cool the inside thereof. The driving shaft of the motor is supported by a bearing having resistance to high temperatures and high humidity and is provided with an agitating blade. In a second embodiment …
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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 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 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.