Paint sprayer distributed control and output volume monitoring architectures

Patent metadata

Field	Value
Publication number	US-11385663-B2
Application number	US-202117643690-A
Country	US
Kind code	B2
Filing date	Dec 10, 2021
Priority date	Feb 11, 2013
Publication date	Jul 12, 2022
Grant date	Jul 12, 2022

Abstract

A sprayer for spraying fluid includes a pump, a motor that drives the pump, a drive cycle indicator, a wireless module configured to send and receive information, and control circuitry. The drive cycle indicator outputs an indication of cycle status of the pump. The control circuitry is configured to receive the plurality of cycle status indications of the pump, determine a plurality of output values representing paint spray fluid output volume over a plurality of time windows based on the plurality of cycle status indications of the pump, store the plurality of output values in memory, and cause the wireless module to transmit one or more of the stored plurality of output values externally from the sprayer.

First claim

The invention claimed is:

1. A hand portable paint sprayer that wirelessly communicates with a remote computing device, the hand portable paint sprayer comprising:
a spray gun configured to spray paint as an atomized spray fan, the spray gun comprising a trigger that actuates the spray gun to spray the paint and a tip nozzle configured to atomize the paint;
a hose that connects to the spray gun;
a frame that permits the hand portable paint sprayer to be moved by hand to job sites;
a pump supported by the frame, the pump having a reciprocating piston that outputs the paint under pressure to the spray gun via the hose;
a motor supported by the frame, the motor configured to drive the pump;
a pressure sensor that outputs a signal indicative of paint pressure of the paint output by the pump;
a wireless module supported by the frame, the wireless module configured to wirelessly send and receive information; and
control circuitry supported by the frame, the control circuitry configured to receive the signal indicative of the paint pressure, generate data indicative of paint spray volume output by the pump through the tip nozzle over a plurality of time windows, determine a plurality of output values representing a volume of the paint sprayed respectively for the plurality of time windows based on the data indicative of the paint spray volume output, store the plurality of output values in memory of the control circuitry, and cause the wireless module to transmit the plurality of output values externally from the hand portable paint sprayer.

2. The hand portable paint sprayer of claim 1 , wherein the control circuitry is configured to generate the data indicative of paint spray volume output by the pump through the tip nozzle over the plurality of time windows based at least in part on the signal indicative of the paint pressure.

3. The hand portable paint sprayer of claim 1 , wherein the control circuitry is configured to determine the plurality of output values based on both the signal indicative of the paint pressure and the data indicative of the paint spray volume output.

4. The hand portable paint sprayer of claim 3 , wherein the control circuitry is configured to determine the plurality of output values by excluding a part of the data indicative of the paint spray volume output that is associated with non-atomization as indicated by the signal indicative of the paint pressure.

5. The hand portable paint sprayer of claim 1 , wherein for each time window of the plurality of time windows, the control circuitry is configured to open the time window, calculate and recalculate an output value of the plurality of output values representing the volume of the paint sprayed for the time window as a running value based on the data indicative of the paint spray volume output that was generated for the time window, and close the time window with a final running value being the output value representing the volume of the paint sprayed for the time window.

6. The hand portable paint sprayer of claim 1 , wherein the data indicative of the paint spray volume output by the pump comprises a plurality of cycle indications of one or both of the motor or the pump.

7. The hand portable paint sprayer of claim 6 , wherein the plurality of output values are respectively a plurality of total cycle counts of the plurality of cycle indications respectively for the plurality of time windows.

8. The hand portable paint sprayer of claim 6 , wherein the plurality of output values are respectively a plurality of volumetric values of the paint sprayed respectively during the plurality of time windows, and the plurality of volumetric values are calculated by the control circuitry based on the plurality of cycle indications and a value that represents pump displacement volume per cycle.

9. The hand portable paint sprayer of claim 6 , wherein the signal indicative of the paint pressure is a first signal, the hand portable paint sprayer further comprising a cycle sensor configured to sense partial or complete cycles of either the motor or the pump and send a second signal to the control circuitry, wherein the plurality of cycle indications are based on the second signal.

10. The hand portable paint sprayer of claim 1 , wherein each time window of the plurality of time windows represents a predetermined amount of time.

11. The hand portable paint sprayer of claim 1 , wherein all of the time windows of the plurality of time windows have the same duration.

12. The hand portable paint sprayer of claim 1 , wherein only one of the plurality of time windows is open at a time such that the plurality of time windows are consecutively opened and closed.

13. The hand portable paint sprayer of claim 1 , wherein the control circuitry is configured to associate either a plurality of timestamps or a plurality of serial numbers respectively with the plurality of time windows.

14. The hand portable paint sprayer of claim 13 , wherein the control circuitry is configured to receive a request via the wireless module from a handheld computing device to send one or more of the plurality of output values stored in the memory to the handheld computing device, the request identifying either a timestamp of the plurality of timestamps or a serial number of the plurality of serial numbers.

15. The hand portable paint sprayer of claim 14 , wherein the control circuitry is configured to, based on the request, send the one or more output values of the plurality of output values that correspond with a time window of the plurality of time windows that is associated with either the timestamp or the serial number that was identified in the request.

16. The hand portable paint sprayer of claim 14 , wherein the one or more of the plurality of output values comprises multiple output values, and wherein the control circuitry is configured to, based on the request, send the multiple output values of the plurality of output values that correspond with multiple time windows of the plurality of time windows that represent respective time periods that are later in time than the time window of the plurality of time windows that is associated with either the timestamp or the serial number that was identified in the request.

17. A sprayer system, comprising:
the hand portable paint sprayer of claim 1 ; and
the remote computing device, the remote computing device being the remote computing device of claim 1 , the remote computing device having a display, and the remote computing device configured to represent the plurality of output values on the display.

18. The sprayer system of claim 17 , wherein the remote computing device is a cellular telephone.

19. The sprayer system of claim 18 , further comprising a server, wherein the cellular telephone is configured to wirelessly communicate the plurality of output values to the server.

20. A method of operating a spray system, the method comprising:
spraying paint with a hand portable paint sprayer over a plurality of time windows, the hand portable paint sprayer comprising:
a spray gun configured to spray paint as an atomized spray fan, the spray gun comprising a trigger that actuates the spray gun to spray the paint;
a hose that connects to the spray gun;
a frame that permits the hand portable paint sprayer to be moved by hand to job sites;
a pump supported by the frame, the pump having a reciprocating piston that outputs the paint under pressure to the spray gun via the hose;
a motor supported by the frame, the motor configured to drive the pump;

Assignees

• Graco Minnesota Inc

Inventors

• Lange Christopher M
• Pagano Nicholas A
• Godding Benjamin R
• Weinberger Mark T
• Mansheim Michael J
• Reath Nicholas H
• Kopel Andrew J
• Johnson Daniel R
• Robb Kevin C
• Gundersen Robert J

Classifications

• B05B7/0408

  with arrangements for mixing two or more liquids · CPC title

• G01K1/026

  arrangements for monitoring a plurality of temperatures, e.g. by multiplexing · CPC title

• B05B7/1693

  with means for heating the material to be sprayed or an atomizing fluid in a supply hose or the like · CPC title

• H04Q9/00 Primary

  Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom · CPC title

• H04Q2209/40

  using a wireless architecture · CPC title