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Expired Canadian patentCanada

Stuffing tubes for electric cables

CA 1193337 A · Owner: Perrault, Raymond E. · Inventors: Perrault, Frederick; Perrault, Raymond E.

CIPO record

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

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Abstract From the Canadian patent

This invention provides a stuffing tube for the decks and bulkheads of ships, which includes a tubular body having portions of two diameters interconnected by a tapered shoulder. An adapter having a tapered portion complimentary to that of the tubular body fits inside the adapter having, a short cylindrical section dimensioned to fit over the cable. A seal comprising a strip of resilient material with an annealed wire core is wrapped around the cable and one end of it is engaged within the tapered adapter. The opposite end is engaged by a flat washer which has an inside diameter comparable to that of the cylindrical section of the adapter. A gland nut compresses the seal pressing, inwardly …

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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 September 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 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.
FiledJuly 30, 1982
GrantedSeptember 10, 1985
Term endedSeptember 10, 2002
Patent numberCA 1193337 A
Classification (IPC)H01B17/58 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJuly 30, 1982Patent grantedSep 10, 1985Term endedSep 10, 2002

Sources & verification

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