Centrifuge motor control
CA 2406173 A1 · Owner: The Western States Machine Company · Inventors: Fair, Roger G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention overcomes the disadvantages of previously known motor controllers for centrifuge machines wherein a motor controller (144) is provided for a centrifuge machine including a logic control module (146) one , or more power cells (148), and one or more contactors (150). The logic control module is capable of interfacing with the main centrifuge controller and provides control over the power cells and contactors to provide a voltage rampup to accelerate the centrifuge basket. As such the logic control module , avoids the current draining problems associated with across the line starting of the centrifuge motor. The power cells receive a voltage from the main power …
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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 April 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 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.