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Expired Canadian patentCanada

Snap-fit lubricant pick-up tube for a motor compressor

CA 1108102 A · Owner: Tecumseh, Products Company · Inventors: Douglas, James L.

CIPO record

Overview

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

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Abstract From the Canadian patent

A lubricating device for use in hermetic compressors -and the like wherein a rotating oil pick-up tube is partially immersed in the oil in the compressor sump, and pumps the oil upwardly by means-of centrifugal action to the compressor parts which are to be lubricated. The compressor includes a vertical shaft to which the pick-up tube is connected, wherein the shaft has an open hollow lower. end including a pair of locking openings in the inner surface of the hollow portion. A molded plastic oil pick-up tube which is bifurcated at one end so as to form a pair of resilient locking arms, is inserted into the shaft until a pair of locking nibs snap into the corresponding locking openings. In …

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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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 19, 1979
GrantedSeptember 1, 1981
Term endedSeptember 1, 1998
Patent numberCA 1108102 A
Classification (IPC)F04B39/02 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedSep 19, 1979Patent grantedSep 1, 1981Term endedSep 1, 1998

Sources & verification

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