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:
Apr. 29, 1980
Filed:
Feb. 13, 1979
John R Avery, Denver, CO (US);
Other;
Abstract
A container is provided having an improved sealing arrangement to prevent the entry of moisture into the container and the escape of moisture therefrom when it is used to hold a moisture-containing substance. The container includes a first and a second wall integrally joined together along their side and bottom margins while their top margins are separable to form an open container. The first and second walls include a lower portion to house an article and an upper portion to be wrapped into a spiral seal formation. A pair of vertically spaced, elongated closure strips extend laterally across and are secured to the inner surface of the upper portion of the first wall. A first flap member is connected along its edge to the outer surface of the first wall while a second flap member is connected along its edge to the outer surface of the second wall. The flap members include a plurality of snap members. To seal the container, the closure strips are folded over each other in parallel laterally adjacent relation to fold and pinch the upper portion of the second wall. The upper portions of the walls are then wrapped into a spiral formation. The first and second flap members are positioned to surround the spiral seal at its outermost layer. The snap members are connected together at a position contiguously above the spiral formation to maintain the spiral sealing arrangement. Thus, forces acting to unwrap the spiral seal formation are shear forces against which the snap members offer great resistance.