Adjusting pump flow at tool

• US 9,481,000 B2
• Filed: 03/16/2011
• Issued: 11/01/2016
• Est. Priority Date: 03/18/2010
• Status: Active Grant

• Current Assignee: AXIA Acquisition Corporation (Formerly, Graco Minnesota Incorporated (Graco Incorporated)
• Original Assignee: Axia Acquisition Corporation (Axia Acquisition Holding Corp.), Graco Minnesota Incorporated (Graco Incorporated)
• Inventors: Wrobel, Steve J., Horning, Jeromy D., Gundersen, Robert J., Dalton, James M., Lins, Christopher A., Kurre, Grant E.
• Primary Examiner(s): Buechner, Patrick M
• Assistant Examiner(s): Gruby, Randall
• Application Number:
  US13/635,654
• Publication Number:
  US 20130008536A1
• Time in Patent Office: 2,057 Days
• Field of Search: 222/52, 222/63, 222/75, 222/333, 417/44.1, 417/326, 417/42, 239/332
• US Class Current: 1/1
• CPC Class Codes: B05B 12/00 Arrangements for controlling delivery; Arrangements for controlling the spray area
• CPC Class Codes: B05B 12/002 Manually-actuated controlling means, e.g. push buttons, levers or triggers for single units B05B11/00
• CPC Class Codes: B05B 7/2489 an atomising fluid, e.g. a gas, being supplied to the discharge device B05B7/2402, B05B7/2483, B05B7/262 take precedence
• CPC Class Codes: E04F 21/12 acting by gas pressure, e.g. steam pressure
• CPC Class Codes: Y10T 137/85978 With pump

Abstract

A pump 24 with speed control is utilized. A dispenser 12 may have a trigger 14 which actuates a valve 16. Dispenser control 18 has “up” and “down” buttons, 20 and 22 respectively. The controls 28(comprising elements 18, 20 and 22) for the pump 24 are remote from pump 24. The controls communicate with the pump via wires or radio frequency (RF) 26 to regulate pump speed. Quick button (20 and 22) presses will incrementally change the flow setting while long button (20 and 22) presses will change the settings at a higher rate. This control method can also be tied to the controls located on the pump 24. The potentiometer 30 on the pump 24 will set a max setting, and any adjustments at the valve can go below this setting and back up to it, but never exceed it.

Claims

1. A fluid dispensing system comprising:

a pump having a speed control for controlling pump speed;

a dispensing device, comprising;

at least first and second control buttons remote from the pump, and capable of communicating with the speed control of the pump through a wire or radio frequency to adjust pump speed, one of said control buttons actuable to signal the speed control to increase the speed of said pump and the other of said control buttons actuable to decrease the speed of said pump;

a valve connected to the dispensing device; and

a trigger for actuating the valve; and

a maximum pump speed control potentiometer located on the pump, the maximum pump speed control potentiometer providing a maximum pump speed control setting and allowing the maximum pump speed setting to be adjusted, so that any adjustments of the pump speed by the speed control in response to the first and second control buttons of the dispensing device may adjust the pump speed control to a pump speed setting below or up to the maximum pump speed setting, but may not adjust the pump speed above the maximum pump speed setting.