Patent Yard Sign in
Expired Canadian patentCanada

Conductive flanges for pipe fittings

CA 1252400 A · Owner: Ameron, Inc. · Inventors: Mclaughlin, Hugh T.

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 conductive flange is set forth for a fitting such as a conduit. The flange is non-conductive including at least one strand of conductive yarn in conductive contact with the conduit and extending to the flange rim where it intersects one or several bolt holes. The flange is conductively attached to the conduit such that any static electrical charges are conducted by the yarn to the ounting bolt or bolts disposed in the bolt holes. The bolts are grounded to, in turn ground, the static charge and prevent sparking.

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 April 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 11, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 31, 1986
GrantedApril 11, 1989
Term endedApril 11, 2006
Patent numberCA 1252400 A
Classification (IPC)H05F3/02 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedOct 31, 1986Patent grantedApril 11, 1989Term endedApril 11, 2006

Sources & verification

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