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Canadian application, no grantCanada

Lightweight and high thermal conductivity brake rotor

CA 2124945 A1 · Owner: Robert Bosch Technology Corporation · Inventors: Rhee, Seong Kwan; Libsch, Thomas Alan

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 rotor for use with a caliper in a brake system of a vehicle. The rotor has a hub with a plurality of openings therein for attachment to an axle which rotates with a wheel of the vehicle. The hub has either an annular disc or spokes which radially extend from the hub to an annular head member. The head member has parallel first and second friction surfaces thereon for engagement with brake pads on actuation during a brake application. The rotor which is made from a composition having from 15-80 percent by volume of silicon carbide and 85-20 percent by volume of iron alloy has a thermal conductivity up to 171 W/mK.

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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 November 6, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 6, 1992
GrantedNo grant recorded
Term endedNovember 6, 2012
Patent numberCA 2124945 A1
Classification (IPC)F16D65/12 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedNov 6, 1992Term endedNov 6, 2012

Sources & verification

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