Fluid through needle for applying multiple component material

US9586221B2 · kind B2 · utility

Inventors

• Mark E. Charpie · Iron River, US
• Marvin D. Burns · Millbury, US

Key dates

• Filing date: Nov 22, 2014
• Grant date: Mar 7, 2017
• Expiry date: Feb 25, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05B7/2497
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Embodiments of a spray gun incorporating a needle for applying multiple component materials are provided. In accordance with certain embodiments, the spray gun includes a fluid delivery tip assembly comprising an inner passage, a hollow needle disposed within the inner passage of the fluid delivery tip assembly, wherein the hollow needle comprises at least two indentions along an outer circumferential surface of the hollow needle near an end of the hollow needle, a first passage configured to deliver a first spray fluid to a fluid tip exit of the fluid delivery tip assembly, wherein the first passage is defined by a volume between the fluid delivery tip assembly and the hollow needle, and a second passage through the hollow needle, wherein the second passage is configured to deliver a second spray fluid to the fluid tip exit of the fluid delivery tip assembly.