Patent Yard Sign in
Expired Canadian patentCanada

Low inertia clutch and brake system

CA 1063539 A · Owner: Verson Allsteel Press Company · Inventors: Otsuka, Tsuruo; Sarkisian, Samuel G.; Otsuka, Steven R.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

The specification discloses a low inertia clutch and brake system which includes a rotatable shaft and high speed and low speed clutch assemblies spaced apart along the shaft A brake, assembly is disposed between the high and low clutch assemblies and includes a stationary housing enclosing friction surfaces mounted about the shaft which are normally engaged with the housing to prevent rotation of the shaft. A pair of pistons are slidably mounted in the housing and are operable in response to fluid pressure to selectively disengage the brake assembly and to engage one of the clutch assemblies. Structure is provided to selectively apply fluid pressure to either of the pistons. The pistons …

Read the whole patent

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 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 2, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedOctober 2, 1979
Term endedOctober 2, 1996
Patent numberCA 1063539 A
Classification (IPC)F16D67/04 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedOct 2, 1979Term endedOct 2, 1996

Sources & verification

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