Patent Yard Sign in
Expired Canadian patentCanada

Method and device for introducing a cable into a cable guide tube

CA 1282052 C · Owner: Griffioen, Willem · Inventors: De Jong, Cornelis Leedert; Griffioen, Willem

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

A method and device for installing a cable more in particular, a glass fibre cable into a duct of a channelization system the, consideration which has led to this being based on the fact that the dragging working, considered from the cable inlet end as, caused by a flow of compressed gas effected in a relevant duct portion will increase according to a non-constant function and dependent on the geometry and the length of the duct portion can, be insufficient over the initial part of it to compensate the friction forces exerted on the cable locally According to the, invention it has now been suggested to fulfil such a compensation function by exerting on the cable a pushing force working …

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 March 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 1988
GrantedMarch 26, 1991
Term endedMarch 26, 2008
Patent numberCA 1282052 C
Classification (IPC)G02B6/44 +1 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedApril 27, 1988Patent grantedMarch 26, 1991Term endedMarch 26, 2008

Sources & verification

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