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Expired Canadian patentCanada

Device for detachably coupling the orifice of a branchline to a line carrying a pressure medium

CA 1104607 A · Owner: Bachofen Ag · Inventors: Kagi, Bruno; Luginbuhl, Rolf W.; Hirmann, Georg A.

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

A device for detachably coupling the orifice of a branchline to a line carrying a pressure medium and having a plurality of discharge valves spaced apart from each other in the line wall, the coupling being carried out by means of a coupling device which is movable over the length of the line and contains the orifice and opens one of the discharge valves. The discharge valves are mounted in the line with magnetically actuating opening members and the coupling device is provided with a coupling element guided thereon and is provided with an automatically sealing coupling member in the coupling position with the discharge valve at the pressure side for an automatic alignment with the orifice, …

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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 July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 1979
GrantedJuly 7, 1981
Term endedJuly 7, 1998
Patent numberCA 1104607 A
Classification (IPC)F16L29/00 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedAug 24, 1979Patent grantedJuly 7, 1981Term endedJuly 7, 1998

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