The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 1979
Filed:
Feb. 06, 1978
David J Martinez, Chicago, IL (US);
Joseph F Schillinger, Palos Hills, IL (US);
Champion International Corporation, Stamford, CT (US);
Abstract
A self locking paperboard container comprises a tubular body portion and a corresponding cap member. The body portion has a sidewall including a plurality of upstanding panel members and a planar base portion which is enclosed by the upstanding panels. The body portion further includes a plurality of locking flaps which are disposed on the outer faces of alternate panel members. Each of the locking flaps extends from the free edge of its respective panel member to an intermediate portion thereof. In addition, each locking flap includes a camming surface. The cap member also has a sidewall which includes the plurality of upstanding panel members and a planar cover portion which is connected to one edge of each of the cap member panels. The cap member panels correspond in width and number to the panel members of the body portion. The cap member further includes a plurality of locking flaps which are disposed on the inner faces of alternate cap member panel members. Each of the cap member locking flaps extends from the free edge of its respective panel member to an intermediate portion thereof. In addition, each of the cap member locking flaps has a camming surface such that when the cap member is placed on the body portion with the cap member locking flaps opposing the body portion locking flaps the camming surfaces of the opposed locking flaps engage with each other and inhibit removal of the cap member from the body portion.