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:
Jul. 25, 2000
Filed:
Mar. 30, 1999
Christian Bayer, Armonk, NY (US);
Precision Valve Corporation, Yonkers, NY (US);
Abstract
A high volume aerosol valve with an axially acting high volume valve stem having upper, intermediate and lower portions. The intermediate portion has an annular gasket sealing groove with four large rectangular orifices having side-to-side vs. top-to-bottom dimensions in a ratio of at least approximately three to one. A stem bore extends from the top of the stem upper portion down through and past the stem intermediate portion and substantially down into the stem lower portion. Narrow web members occupy said stem bore from a position substantially up into said stem upper portion extending down through said stem intermediate portion and substantially down into said stem lower portion to the bottom of the bore. Radially outer edges of the narrow web members, in the stem intermediate portion, define therebetween the four large rectangular orifices. The large rectangular orifices, lying along a circle passing through the radially outer edges of the narrow web member, occupying at least seventy, and preferably at least seventy-five, per cent of the circumference of the circle. The narrow web members in horizontal cross section preferably take up less than fifty per cent of the available cross-sectional area internal to the stem.