Easy access sandwich carton

• US 4,428,525 A
• Filed: 08/09/1982
• Issued: 01/31/1984
• Est. Priority Date: 08/09/1982
• Status: Expired due to Fees

• Current Assignee: International Paper Company
• Original Assignee: International Paper Company
• Inventors: Brauner, Arne H.
• Primary Examiner(s): Ross, Herbert F.
• Application Number:
  US06/406,748
• Time in Patent Office: 540 Days
• Field of Search: 229/41 R, 229/41 B, 229/31 R, 229/34 B
• US Class Current: 229/117.07
• CPC Class Codes: B65D 5/36 specially constructed to allow collapsing and re-erecting without disengagement of side or bottom connections
• CPC Class Codes: B65D 5/66 Hinged lids B65D5/325 takes precedence

Abstract

A carton having upper and lower hingedly connected halves with "V" shaped cross sections, adapted to be folded compactly and firmly closeable when erected and filled with contents are disclosed. The cartons are especially suitable for use in packaging fast food items particularly hot or cold sandwiches on rolls or buns.

Claims

1. A folding carton consisting of

(A) a lower portion having a substantially "V" shaped cross section comprising a bottom wall, a rear wall hingedly attached thereto, and two lower side walls hingedly attached to said bottom and rear walls;

each of said side walls comprising an inner lower flap hingedly attached to said bottom wall and an outer lower flap hingedly attached to said rear wall, said outer lower flap being divided into substantially equal glue and non-glue panels by a fold line extending upwardly from the intersection of said outer lower flap and said bottom and rear walls, said glue panel being the panel relatively more remote from the line of attachment of said outer lower flap to said rear wall and said outer lower flap being secured to said inner lower flap only at said glue panel;

said inner lower flap bearing a tab adapted to be cooperatively engaged in a slit sited about at the fold line connecting said rear wall and said outer lower flap; and

(B) an upper portion having a substantially "V" shaped cross section, comprising a top wall hingedly attached to the rear wall of said lower portion, a front wall hingedly attached to said top wall and two upper side wall portions hingedly attached to said front and top wall, each of said upper side wall portions comprising an inner upper flap hingedly attached to said front wall and an outer upper flap hingedly attached to said top wall, said outer upper flap being divided into substantially equal glue and non-glue panels by a fold line extending downwardly from the intersection of said outer upper flap and said top and front walls, said glue panel being the panel relatively more remote from the line of attachment of said outer upper flap to said top wall and said outer upper flap being secured to said inner upper flap only at said glue panel;

said lower side walls extending partially inside said upper side walls in the erected and closed carton;

said bottom wall having a flap hingedly extending therefrom on the front edge thereof, said flap having a "U" shaped slit therein adapted to form a reverse tab cooperatively engageable in a corresponding slot in said front wall.