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:
Feb. 29, 2000
Filed:
May. 06, 1998
William Smith, Jessup, MD (US);
Other;
Abstract
A dual induction apparatus for high volume low pressure spraying systems is provided. The invention includes an atomizing tube with an entrance, a midpoint and an exit. A jet nozzle is connected to the entrance of the atomizing tube. A first plurality of induction ports pass through the sidewalls of the atomizing tube proximal the jet nozzle. The first plurality of induction ports are in communication with ambient air. When the compressed air passes through the jet nozzle a low pressure field is formed causing ambient air to be drawn into the atomizing tube. A venturi element is located inside the atomizing tube in the area about the midpoint to the exit. A tube in communication with the removable venturi element is passed through the sidewall of the atomizing tube. The tube is affixed in a perpendicular fashion to the aperture in the venturi element on its first side and is further connected to a reservoir of paints, powders, solvents or other substances. The tube may be mated to the atomizing tube in a removable sliding lock fashion. By the prior action of compressed air passing through the jet nozzle the low pressure field is formed and is maintained with ambient air having been inducted into the atomizing tube through the first plurality of ports. The pressure at the midpoint of the atomizing tube is also sufficiently low to cause a suction through the tube drawing the atomizable substance from its reservoir into the cylindrical element located along the centerline of the atomizing tube. The liquid drawn through the tube and into the cylindrical element is entrained and atomized into the low pressure air. At this point the atomized substance passes through the atomizing tube exit where it is delivered to its target.