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. 03, 1989
Filed:
Feb. 05, 1988
Charles S Radtke, Little Ferry, NJ (US);
Other;
Abstract
The present invention provides a closure for a container, preferably a plastic aerosol container on which there is provided a specially designed neck. A metal cup having vent slots is fittable on the container top and neck. The cup has formed at its periphery an inwardly curled tuck and a rounded top portion which fits over a rounded annular shoulder on the neck. The radius of the rounded annular shoulder of the neck is larger than the radius of the rounded top portion of the cup. The neck further includes a tuck support member having a horizontal ledge. A tuck pocket is formed between the annular shoulder and the tuck support member to accomodate the tuck in the cup. Sealing of the cup to the container occurs at the annular shoulder of the neck by pressure of a pressure ring in concert with a pilot of a closure die on the cup top portion. Because of the difference in radii between the rounded annular shoulder and the rounded top portion of the cup, the cup is pressure sealed to the annular shoulder at at least two points on the sides of the annular shoulder. The tuck of the cup is inserted in the tuck pocket and the ledge of the tuck support member prevents the tuck from unravelling during sealing.