System and method when forming lift-tab can end assemblies

CAFC
  • US 6,022,179 A
  • Filed: 09/10/1996
  • Issued: 02/08/2000
  • Est. Priority Date: 05/12/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. A system for forming and attaching lift-tabs to can ends to form lift-tab can ends, said system comprising:

  • a tab press mounted on a frame and being adapted for forming at least one lane of lift-tabs in a strip of metal stock material;

    a means for passing the strip of metal stock material with the formed lift-tabs loosely attached thereto through a half loop to an inverted condition before entering a tab punching station;

    a drive roller supported on the frame of the tab press for moving the strip of metal stock material through the tab press;

    said tab punching station having a tab punch for punching the formed tabs from the strip of metal stock material into at least one lane of formed tabs;

    a conveyor means for conveying the at least one lane of formed tabs from the tab punching station to a conversion press;

    said conversion press being adapted to attach a tab onto a can end, and having a tab ejector which is adapted for feeding one tab at a time into the conversion press and a locating means for placing a tab into working relationship with a can end so that the conversion press may attach the tab onto the can end to form a lift-tab can end.

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