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:
Apr. 09, 2002
Filed:
Oct. 29, 1999
James M. Borsuk, Westlake, OH (US);
Laurence B. Saidman, Duluth, GA (US);
James W. Schmitkons, Lorain, OH (US);
Nordson Corporation, Westlake, OH (US);
Abstract
An electrostatic dispensing system for dispensing flowable liquid material onto a moving substrate. The electrostatic dispensing system includes multiple liquid dispensers that are aligned along a common axis and supported in spaced, non-contacting relationship on one side of the moving substrate. Each of the liquid dispensers includes a valve to control the flow of fluid through the dispenser. An electrostatic field generator is supported in spaced, non-contacting relationship on the opposite side of the moving substrate to generate an electrostatic field through the moving substrate. The electrostatic field operates to attract flowable liquid material from dispensing outlets associated with the multiple liquid dispensers as a series of spaced, continuous streams or beads which intersect a surface of the moving substrate facing the liquid dispensers. The beads of flowable material are deposited on the surface of the moving substrate in a series of uniform, continuous beads which are formed generally parallel to a direction of travel of the moving substrate. Methods of electrostatically dispensing flowable material onto a moving substrate are also disclosed.