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. 31, 1978
Filed:
Oct. 06, 1976
Ronald N Guimond, Stoughton, MA (US);
Harold R Thompson, Duxbury, MA (US);
The Gillette Company, Boston, MA (US);
Abstract
A pressurized dispensing package includes a container in which the product to be dispensed and a gaseous propellant are stored. The product is dispensed through a discharge passage that extends from a control valve to a terminal orifice. A plural passage flow control member is disposed in the discharge passage. Each passage of the flow control member has a flow dimension in the range of one to one hundred microns and the length of the flow control member several times the passage flow dimension so that a significant pressure drop occurs across the flow control member as the product flows through the member. The total flow area of the flow control passages disposed in the discharge passage is greater than the area of the terminal orifice but less than fifty percent of the area of the discharge passage in which the flow control member is located. The flow control member provides an intermediate pressure drop and a change in product flow configuration downstream from the flow control member and the product is emitted from the terminal orifice in a desirable spray pattern without requiring the dilution and aerosol effect created by the dispensing of substantial amounts of propellant with the product.