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Expired Canadian patentCanada

Service lubricating of metal haulage cables

CA 1322975 C · Owner: Schneider, Robert L. · Inventors: Schneider, Robert L.

CIPO record

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

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Abstract From the Canadian patent

An apparatus and method to lubricate metal haulage cables having a lubricant recirculating system and a spray enclosure. The enclosure generally comprises: entrance and exit openings in replaceable bearing surfaces; entrance brushes for cleaning the surface of the entering cable; a plurality of high pressure spray nozzles injecting lubricant into the cable as the cable traverses the enclosure with means to adjust the nozzle-to-cable surface distance; and exit brushes for removing excess lubricant from the cable as the cable exits the enclosure. The spray nozzles spray the lubricant into the cable whenever the cable is worked or reeled onto a storage drum. The recirculating system recovers, …

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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 October 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 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.
FiledJune 20, 1989
GrantedOctober 12, 1993
Term endedOctober 12, 2010
Patent numberCA 1322975 C
Classification (IPC)B05B13/02

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 20, 1989Patent grantedOct 12, 1993Term endedOct 12, 2010

Sources & verification

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