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Expired Canadian patentCanada

Quick disconnect pack

CA 1185419 A · Owner: Magnetic Peripherals Inc. · Inventors: Elsing, John W.

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

An arrangement for mounting an exchangable disk pack. The disk pack's hub includes an open ended stub with two retractable steel balls mounted adjacent the open end. The disk drive's spindle has a coaxial recess for receiving the stub. The recess has an interior annular groove adapted for registration with the balls. The stub is inserted into the recess when mounting the disk pack. When the hub and spindle are in abutment the balls, are positioned just anterior to the annular groove. The stub is mounted on a diaphragm mounted on the hub. Depression of the diaphragm moves the balls into registration with the annular groove. The balls then move from their retracted condition and into the …

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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 April 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 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 6, 1982
GrantedApril 16, 1985
Term endedApril 16, 2002
Patent numberCA 1185419 A
Classification (IPC)F16B1/00 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJan 6, 1982Patent grantedApril 16, 1985Term endedApril 16, 2002

Sources & verification

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