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Expired Canadian patentCanada

Hoist and accumulator arm apparatus

CA 1318334 C · Owner: 9063-3884 Quebec Inc. · Inventors: Johnson, Alan T.

CIPO record

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Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An apparatus for continuously feeding the individual elements from tiered loads has a hoist including both vertical, and horizontal support members which can both be pivoted back to, come in contact with an accumulator arm assembly by the motion of a rotatable support base, thereby allowing the load to be raised upwards along an angular load path. The accumulator arm assembly includes a carriage assembly which can slide part of the way down the load path, and independently extendable accumulator arms for extending beneath the bottom of the tiered load once approximately one-half of the load has been unloaded down the load-discharging members to the fixed and predeterminable load discharging …

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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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 15, 1989
GrantedMay 25, 1993
Term endedMay 25, 2010
Patent numberCA 1318334 C
Classification (IPC)B65G59/02 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedFeb 15, 1989Patent grantedMay 25, 1993Term endedMay 25, 2010

Sources & verification

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