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:
Nov. 14, 1989
Filed:
Jun. 13, 1988
Takaji Shimada, Kawaguchi, JP;
Nordson Corporation, Westlake, OH (US);
Abstract
A method of applying coating material to only selected areas of a packaged printed circuit board wherein the coating material is supplied to a flat-pattern nozzle at a pressure sufficient to produce a liquid film emission in a flat triangular or dovetail shaped pattern which portion of the nozzle emission is substantially free of atomized particles. The circuit board is positioned relative the nozzle to place the board in the path of the film pattern and relative movement between the nozzle and board is effect in conjunction with controlling the supply of coating to the nozzle to coat only desired regions of the board while avoiding deposit of coating material on areas to be left uncoated.