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Expired Canadian patentCanada

Clutch/brake apparatus

CA 1262441 C · Owner: Industrial Clutch Corporation · Inventors: Matson, Robert C.

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 clutch/brake apparatus for alternatively connecting a driven shaft to a driving member and to a stationary member which distributes the mass of its components to maximize the effective rotational inertia of the driving member and to minimize the effective rotational inertia of the driven shaft. Sets of interleaved brake plates are respectively mounted to the driven shaft and the stationary member and sets of interleaved clutch plates are respectively mounted to the driven shaft and the driving member. A clutch operator for urging the clutch plates together when it is moved in a first axial direction is connected to rotate with the driving member and a brake operator for urging the brake …

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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 24, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 24, 2006.
  • 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 6, 1985
GrantedOctober 24, 1989
Term endedOctober 24, 2006
Patent numberCA 1262441 C
Classification (IPC)F16D67/04 +1 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedSep 6, 1985Patent grantedOct 24, 1989Term endedOct 24, 2006

Sources & verification

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