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Canadian application, no grantCanada

End of fill detector for a hydraulic clutch

CA 2069924 A1 · Owner: Marcott, Tony L. · Inventors: Marcott, Tony L.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

26-, Abstract of the Disclosure, End of Fill Detector for a Hydraulic Clutch An apparatus (100) is adapted to detect an end-of-fill condition of an actuator (102) having a varying control volume, C. The apparatus (100) includes a solenoid (106) having a coil (202) and an armature (204). The armature (204) is movable relative to the coil (202) in response to energization of the coil (202). A control valve (206) delivers a flow of fluid to the actuator (102). The rate of the fluid flow is responsive to the movement of the armature (204). An electrical circuit (108) detects a voltage spike across the coil (202) and responsively produces an end-of-fill signal. The voltage spike is generated by …

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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

  • Filed February 25, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2013.
  • 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 25, 1991
GrantedNo grant recorded
Term endedFebruary 25, 2011
Patent numberCA 2069924 A1
Classification (IPC)F15B21/08 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedFeb 25, 1991Term endedFeb 25, 2011

Sources & verification

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