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:
Sep. 29, 2009
Filed:
Apr. 19, 2005
Evan Hupp, Ely, IA (US);
Evan Hupp, Ely, IA (US);
Evergreen Packaging Inc., Memphis, TN (US);
Abstract
The present invention relates to liquid dispensing devices having discharge nozzles. The discharge nozzle has a flow control device. The flow control device includes a check valve and an outlet. The check valve is capable of creating a vacuum pressure cycle during closing. The outlet is formed from at least one perforated plate. The perforated plate has a plurality of apertures therethrough. The plurality of apertures include at least two differently sized sets of apertures. The at least two differently sized sets of apertures include a larger size set of apertures and a smaller size set of apertures. The larger size set of apertures are centrally located within the perforated plate. The present invention helps to concentrate the greatest vacuum pressure on a decaying portion of a stream of liquid right in the center of the outlet of the discharge nozzle.