Patent Yard Sign in
Expired Canadian patentCanada

Web tension transducer

CA 1307408 C · Owner: Ekola, Kenneth E. · Inventors: Ekola, Kenneth E.

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

Abstract of the Disclosure A combined roll/tension transducer for supporting a moving web while sensing the tension thereof. There is a rigid support shaft and a pair of roll support and signal generating assemblies disposed adjacent the respective ends of the shaft. The assemblies each comprise a collar non-movingly attached to the shaft; a pair of resiliently bendable opposed beams carried by the collar and extending therefrom parallel to opposite sides of the shaft; a cylindrical support member disposed over the shaft and carried by the pair of beams, the support member having an axial bore with the shaft passing therethrough which is a clearance fit to the shaft; a ball bearing fit onto …

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 September 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 11, 1988
GrantedSeptember 15, 1992
Term endedSeptember 15, 2009
Patent numberCA 1307408 C
Classification (IPC)B65H26/04 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedAug 11, 1988Patent grantedSep 15, 1992Term endedSep 15, 2009

Sources & verification

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