Protective cover for electrical bus bars and method of using same
CA 2124586 C · Owner: Harris, Michael R. · Inventors: Blue, Randall L.; Sharp, Jeffrey O.; Harris, Michael R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a cover (10) for an exposed bus bar (28, 30) attached to an electrical control device having a contour mounting surface for circuit interrupters. The cover (10) includes a generally planar body member (42) having sufficient size to substantially cover the exposed bus bar. The cover (10) includes elements (284 253, 276, 278) for securing, the body (42) to the device so that the position of the body prevents contact between the bus bar (28, 30) and a person's finger or equipment particularly when an individual circuit interrupter is mounted to the device. The present invention also includes a method of safely protecting an exposed bus bar (28 30) attached to an …
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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 September 29, 1993 and granted April 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 2015.
- 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.