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:
Jun. 07, 1994
Filed:
Mar. 30, 1993
Leane K Davis, Milford, OH (US);
Eric J Holden, Cincinnati, OH (US);
Robert S Kiner, Cincinnati, OH (US);
Joan B Szkutak, West Chester, OH (US);
The Proctor & Gamble Company, Cincinnati, OH (US);
Abstract
A resilient squeeze bottle dispensing package including an internal flexible bag which is suitable for dispensing viscous product such as toothpaste, but which includes an air valve which will automatically permit pressure equilibration in the chamber formed between the flexible bag and the interior of the bottle in response to a decrease in the atmospheric pressure surrounding the package. Employing a valve which permits such automatic pressure equilibration avoids unwanted oozing of viscous product from the discharge orifice of the package when the atmospheric pressure surrounding the package decreases, e.g., as by airplane travel or by travelling from a first elevation to a second substantially higher elevation.