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Expired Canadian patentCanada

Electromagnetic cone clutch with ball torque booster

CA 1182058 A · Owner: Facet Enterprises, Inc. · Inventors: Miller, Donald 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

A single surface electromagnetic cone clutch or braking device is disclosed which transmits torque from an input shaft to a drive plate member through a plurality of spherical members, to a conical friction ring member and then to the output member. The spherical members are located in mutually opposing conical recesses within the drive plate member and an annular flange which is secured to the friction ring member. The clutch engaging forces are Increased by the camming action of the spherical members in the conical recesses. The drive plate member also has a flexing member which permits the drive plate member to flex axially in order to minimize backlash noise associated with spherical …

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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 February 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 29, 1982
GrantedFebruary 5, 1985
Term endedFebruary 5, 2002
Patent numberCA 1182058 A
Classification (IPC)F16D27/00 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJan 29, 1982Patent grantedFeb 5, 1985Term endedFeb 5, 2002

Sources & verification

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