Anode positioning system
CA 1212078 A · Owner: Spence, John S. · Inventors: Spence, John S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an electrolytic reduction cell having anodes which are vertically moved through screw jacks each driven, through a worm reduction gear a common motor is provided, to drive a plurality of the jacks each jack being driven, through an individual disengageable torque-limiting clutch located between the motor and the input shaft of the reduction gear. This allows individual anodes to be raised and lowered or all the anodes, driven by the common motor to be raised and lowered together. Reverse gearing may be arranged in the system to allow one group of anodes to be driven at the same speed but in the opposite direction to another group of anodes to allow the electrolyte to be agitated by anode …
Read the whole patent
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 September 30, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 30, 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.