Patent Yard Sign in
Expired Canadian patentCanada

Readily repairable and lightweight cover for a heated vessel

CA 1266775 C · Owner: Eltech Systems Corporation · Inventors: Schraff, Raymond J.; Miller, Thomas M.; Labas, Nicholas

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 lightweight cover provides heat insulation for a heated vessel such as a soaking pit. The cover can be readily assembled in a manner providing for ease of repair plus simplicity of maintenance. The cover has a pair of opposing frame members with ceramic fiber insulation positioned therebetween. The insulation is secured in movable engagement such as a free-floating and swinging engagement. In this mode, compression can be exerted against the insulation to most desirably reduce heat loss otherwise caused by heat induced ceramic fiber shrinkage. Moreover with this structure a ceramic fiber heat seal can be achieved around edges of the soaking pit.

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 20, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 20, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 29, 1985
GrantedMarch 20, 1990
Term endedMarch 20, 2007
Patent numberCA 1266775 C
Classification (IPC)F27D1/14 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedJuly 29, 1985Patent grantedMarch 20, 1990Term endedMarch 20, 2007

Sources & verification

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