Position sensitive anti-tamper watthour meter
CA 1079360 A · Owner: Westinghouse Electric Corporation · Inventors: Tapscott, Hunter P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An anti-tamper watthour meter includes a gravity actuated switch arrangement for reversing the meter voltage winding connections across the meter terminal blades when the meter is installed in an inverted position. An additional penalty metering arrangement includes a gravity actuated magnetic member which drops into a position adjacent a meter damping permanent magnet when the meter is inverted. The inverted meter operates at a faster than normal metering rate.
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 June 10, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 1997.
- 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.