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:
Oct. 13, 1981
Filed:
Jul. 26, 1979
Kenneth L Summers, Angola, IN (US);
Mahlon E Rieke, Auburn, IN (US);
Riche Corporation, Auburn, IN (US);
Abstract
A cap-like closure device for a container which is arranged with a raised annular boss formed in one end to receive the closure device includes a flexible spout member secured to the raised annular boss by means of an anchor ring which is disposed overlapping the outermost edge of the flexible spout member and is crimpable to secure this outermost edge around the top lip portion of the raised annular boss. A resealable cap is provided which threadedly engages the top rim portion of the flexible spout and includes a depending annular groove in its top lip portion which is suitably sized to receive the top rim portion of the flexible spout to provide a secondary seal. Disposed over the resealable cap is a tamper-proof cap which is temporarily retained by the anchor ring, but which may be removed from beneath the innermost edge of the anchor ring by prying. Integral with the flexible spout member is a diaphragm which has joined thereto a pull tab ring member. A pull force on the pull tab ring member and directed upwardly enables the diaphragm to be torn free of the flexible spout member and thereby open the container. Also joined to the flexible spout member is a venting unit which includes a plurality of venting apertures to enable the entry of air for the smooth and continuous discharge of container contents.