Fluid cartridge for a plural component sprayer

US11633748B2 · kind B2 · utility

Assignee

• Graco Minnesota Inc. · US

Inventors

• Daniel P. Ross · Maplewood, US
• Joseph E. Tix · Hastings, US
• Samuel Ray Stewart · Redmond, US
• Mark T. Weinberger · Mounds View, US
• Christopher J. Pellin · Burnsville, US
• Jeffrey N. Velgersdyk · Minnetonka, US

Key dates

• Filing date: Oct 25, 2019
• Grant date: Apr 25, 2023
• Expiry date: Dec 20, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05B7/1272
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A fluid cartridge for a plural component sprayer is configured to receive first and second component materials and purge air from the sprayer and provide the first and second component materials and purge air to a mix chamber for spraying. The fluid cartridge includes a cartridge body, material flowpaths extending from a second end to a cartridge bore, and a purge path extending from the second end to the cartridge bore. Fluid checks are disposed in the material flowpaths and purge path to prevent backflow out of the fluid cartridge. Side seals are disposed in the material paths and are pre-loaded to extend into the cartridge bore and engage a mix chamber within the cartridge bore.