Patent Yard Sign in
Expired Canadian patentCanada

Anti-static chain

CA 1180905 A · Owner: Rexnord Inc. · Inventors: Hodlewsky, Wasyly G.

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 chain link for use in an anti-static conveyor comprising a polymeric link part with a dispersion of electrically conductive particles in an amount not affecting a substantial reduction in the tensile strength of the link part as compared with the tensile strength of the same link part made of the polymeric material alone but sufficient to allow discharge of a static electrical charge from the part. The chain may be used in a conveyor including means for electrically grounding the link parts such as by providing electrically conductive wear strips with which the link parts come in contact.

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 January 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 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.
FiledMarch 11, 1982
GrantedJanuary 15, 1985
Term endedJanuary 15, 2002
Patent numberCA 1180905 A
Classification (IPC)B65G17/38 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMarch 11, 1982Patent grantedJan 15, 1985Term endedJan 15, 2002

Sources & verification

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