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Expired Canadian patentCanada

Method and apparatus for automatic low-bacteria to aseptic filling and packing of foodstuffs

CA 1067751 A · Owner: Aluminiumwerke Ag. Rorschach · Inventors: Sturm, Winfried; Bachmann, Robert

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Abstract From the Canadian patent

TITLE OF THE INVENTION:, METHOD AND APPARATUS FOR AUTOMATIC LOW-BACTERIA TO ASEPTIC FILLING AND PACKING OF FOODSTUFFS ABSTRACT OF THE DISCLOSURE, The automatic filling and packaging of foodstuffs under aseptic to low-bacterial count conditions is accomplished by disinfecting a packaging material for at least one second by means of high-intensity ultraviolet radiation, generated by a high-current low-pressure mercury discharge, with a current density of more than 1 A/cm and a mercury pressure of 5 x 10-3 to 5 x 10-1 Torr, wherein the spectral radiation intensity of the 253.7 nm line of the ultraviolet radiation UV on the packaging material 1, 2, 3 is set to at least 0.05 W/cm2.

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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 December 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedDecember 11, 1979
Term endedDecember 11, 1996
Patent numberCA 1067751 A
Classification (IPC)B65B31/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedDec 11, 1979Term endedDec 11, 1996

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