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Expired Canadian patentCanada

High speed automatic packaging machine with anti-centrifugal force transport means

CA 2055265 C · Owner: Tisma, Stevan · Inventors: Tisma, Stevan

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A high speed automatic packaging machine is constructed from standardized modules in order to reduce cost and standardize operational an maintenance procedures. The standardized modules include conveyor chains trained over sprocket wheels to form modules which may be ganged to maintain synchronization of operations. Various types of mandrels may be attached to the conveyor chain in order to adapt the machine to load different types of products. The mandrels experience significant centrifugal forces as they go around the path defined by the sprocket wheels. To prevent the mandrels from slapping the conveyor chain when it is traveling at high speed, a leading end of the mandrel is pivotly …

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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

  • Filed November 12, 1991 and granted September 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 12, 1991
GrantedSeptember 25, 2001
Term endedNovember 12, 2011
Patent numberCA 2055265 C
Classification (IPC)B65B43/52 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedNov 12, 1991Patent grantedSep 25, 2001Term endedNov 12, 2011

Sources & verification

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