×

Method and apparatus for closing bottom end flaps of a carton

  • US 5,066,269 A
  • Filed: 08/25/1989
  • Issued: 11/19/1991
  • Est. Priority Date: 08/25/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for closing the bottom end flaps of a rectangular carton having sequentially adjacent first, second, third and fourth sides which form the body of the carton, the four sides having first, second, third and fourth bottom end flaps extending respectively therefrom, the method including the steps of:

  • (a) providing a carton in an expanded rectangular position having its bottom end flaps extending downward relative to the body of the carton;

    (b) providing biasing means to bias said end flaps outwardly with respect to the sidewalls of the body of the carton;

    (c) providing a programmable sequence controller for sequentially controlling release of the biasing means and closing of the bottom end flaps;

    (d) providing closing means for closing the bottom end flaps in a preset sequence under control of the sequence controller by folding each end flap whose bias has been released towards the interior of the carton while maintaining a bias on each unfolded end flap; and

    (e) providing the end flaps in a secure position by means of disposing at least two end flaps in locking relationship to each other.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×