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:
Dec. 22, 1987
Filed:
May. 09, 1986
Allan B Heath, Port Huron, MI (US);
Richard G Gossman, Port Huron, MI (US);
Other;
Abstract
This invention relates to a nozzle assembly used to atomize liquids within air, particularly useful for coating die surfaces with die release lubricants. The atomizing nozzle includes an internal poppet valve element which is operated to control the flow of lubricant in response to a control air pressure signal. Blow air is initially transmitted to a pre-atomization area where some air is introduced in the lubricant which is thereafter introduced into the main blow air stream. This pre-atomization function has been found to enable fine atomization at low flow rates of lubricant. The pre-atomization bore further enables the device to be self-cleaning by clearing out the lubricant passage. Fine control over lubricant flow rate is provided by an elliptical shaped orifice which is closed off by the end of the poppet valve element. Apparatus for preventing contaminants from entering the poppet valve chamber and coating the inside of the chamber with lubricant are also provided in the form of a small bleed passage formed by the head of the poppet element.