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:
Jan. 03, 1995
Filed:
Nov. 09, 1992
Roland H Thoms, Cortland, NY (US);
BMC Industries, Inc., Cortland, NY (US);
Abstract
An etching system for etching openings in a metal web including multiple etching station for etching a metal web from opposite sides with each of the etching stations including a set of first bank of oscillateable nozzles located in a first chamber in the etching station, with the first bank of oscillateable nozzles having predetermined spacings from one another, and operable for directing etchant at a first side of a metal web and a second bank of oscillateable nozzles located in a second chamber in the etching station, with the second bank of oscillateable nozzles having a predetermined spacing substantially identical to the first bank of oscillateable nozzles with the second set of oscillateable nozzles laterally offset from the first set of nozzles, so as not to spray on directly opposite regions located on the metal web with the banks of the nozzles in adjacent etching stations offset from each other with the oscillation axis of the nozzles is at an angle off normal so that etchant is sprayed in elliptical patterns on the metal web to more uniformly distribute etchant across the metal web.