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Expired Canadian patentCanada

Power rail, control signal rail and guide beam arrangement for a transportation system

CA 1081809 A · Owner: Westinghouse Electric Corporation · Inventors: Segar, William R.

CIPO record

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Abstract From the Canadian patent

A power and control signal rail arrangement to carry power and control signals to a transportation vehicle which is directed along the roadways by guide wheels which follow a guide beam incorporated in the roadway. The arrangement provides for mounting power rails and control signal rails on top of the roadway guide beam and also permits factory assembly of the power rails, the control signal rails and the guide beam as a modular unit. The disclosure also describes a pivotal guide beam switch for directing vehicles between a first and second roadway, A power and control signal rail arrangement cooperative with suitable vehicle collectors provides continuous power and control signals to the …

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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 July 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 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.
FiledDecember 8, 1976
GrantedJuly 15, 1980
Term endedJuly 15, 1997
Patent numberCA 1081809 A
Classification (IPC)B61F9/00 +2 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedDec 8, 1976Patent grantedJuly 15, 1980Term endedJuly 15, 1997

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.