Power supply for an electric precipitator
CA 1094148 A · Owner: Siemens Aktiengesellschaft · Inventors: Schmidt, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved power supply for an electric precipitator which includes a d-c voltage source and a pulsed a-c voltage source coupled to the highvoltage electrodes of the precipitator. The improvement of the invention comprises the pulsed a-c voltage source comprising a high-voltage transformer including a primary winding and a secondary winding the latter of which is, coupled to the high-voltage electrodes of the precipitator. A d-c voltage source has one of the voltage terminals thereof coupled by means of a center tap to the primary winding of the transformer and the other of its voltage terminals coupled to a pair of thyristors and a pair of diodes connected to the ends of the primary …
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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 January 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 20, 1998.
- 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.