Slot nozzle apparatus for applying coatings to bottles

US5354378A · kind A · utility

Assignee

• Nordson Corporation · US

Inventors

• Larry Hauser · Chicago, US
• Jurgen Benecke · Ilmenau, DE
• Arthur Cieplik · Havixbeck, DE
• Thomas Burmester · Bleckede, DE
• Michael L. Gill · Westlake, US
• Kerry Washington · Stone Mountain, US
• Ron Evans · Gatineau, CA

Key dates

• Filing date: Jul 8, 1992
• Grant date: Oct 11, 1994
• Expiry date: Jul 8, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S118/02
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Apparatus and methods for producing coatings, such as wax or hot melt adhesive, onto the tops and necks of wine bottles or similar objects. A slot nozzle die has elongated air slots along a vertically oriented slot extrusion opening. A hot melt or wax gun is disposed above the bottle neck to apply a bead of adhesive to the bottle top. In the operation of the apparatus, the air flow is initiated from both air slots prior to the initiation of the hot melt flow and is continued beyond that point in time, when the hot melt flow ceases. The air carries a film of coating material horizontally to the bottle neck. Means are provided for spinning the bottle about its vertical axis. The delays between the operations of the air flow and the coating flow are on the order of micro seconds. The merged coatings are heated to smooth the coating finish to produce a traditional neck seal.