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:
Oct. 17, 1995
Filed:
Feb. 09, 1994
Applicant:
Inventors:
Scott R Miller, Roswell, GA (US);
Carl C Cucuzza, Loganville, GA (US);
Assignee:
Nordson Corporation, Westlake, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05C / ; B05C / ; B05B / ;
U.S. Cl.
CPC ...
118602 ; 239127 ; 239583 ; 222318 ; 13762548 ; 118313 ;
Abstract
An improved apparatus for spraying hot melt adhesive includes a gear pump for providing a metered flow of hot melt adhesive. When a valve member is in a first position, a predetermined rate of flow of hot melt adhesive is conducted from the gear pump to a nozzle. When the valve member is in the first position, the valve member blocks a flow of adhesive to a recirculation passage. When the valve member is in a second position, the valve member directs the flow of adhesive from the gear pump to the recirculation passage and blocks a flow of adhesive to the nozzle.