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Expired Canadian patentCanada

Pipe fusion machine

CA 1283520 C · Owner: P. E. Fusion, Llc · Inventors: Rakes, George Clinton

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Self Propelled Pipe Fusion Machine, ABSTRACT A self propelled enclosed apparatus for coupling sections of plastic pipe by fusion together to form a pipe line. The apparatus comprises a housing having a forwardly extending boom or trough for receiving pipe sections. Pipe sections are loaded onto the boom and fed to a fusion machine in the housing. The fusion machine is provided with hydraulically operated clamps and rollers to align and hold a section of pipe in mating relationship with a pipeline and a heating plate for forming a fused joint between the pipe section and the pipeline. Cooling apparatus is provided at the joint to reduce its temperature following fusion. Kick out rollers are …

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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 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 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.
FiledJune 3, 1987
GrantedApril 30, 1991
Term endedApril 30, 2008
Patent numberCA 1283520 C
Classification (IPC)B29C65/02

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJune 3, 1987Patent grantedApril 30, 1991Term endedApril 30, 2008

Sources & verification

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