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Flow-based control for texture sprayer

A sprayer, texture technology, used in pump control, fluid parameters, spray devices, etc.

Active Publication Date: 2017-08-01
GRACO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The spray gun can be triggered to release pressurized spray material and air in spray mode, but must receive pressurized air and spray material from the main unit
As a result, the operator using the spray gun must have some means of actuating the pump and other equipment located in the main unit

Method used

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  • Flow-based control for texture sprayer
  • Flow-based control for texture sprayer
  • Flow-based control for texture sprayer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] This disclosure describes a texture sprayer with a motor-driven air compressor that supplies pressurized gas along a pneumatic line for spraying and other tasks. An airflow switch along the airline powers the motor when the airflow switch senses airflow through the airline, such as when air is let out to spray texture. Whenever the pressure in the pneumatic line drops below a threshold, the pressure switch powers the electric motor, ensuring airflow is always possible. This architecture allows control of the texture applicator from the spray gun based entirely on air flow, and allows remote priming of the applicator by venting the air flow through a priming valve located at the spray gun.

[0018] figure 1 is a perspective view of texture applicator 10 including main unit 12 , spray gun 14 , fluid hose 16 , air hose 18 , texture container 20 , pump 22 and trigger 24 . Main unit 12 is a pneumatic texture applicator connected to spray gun 14 by fluid hose 16 and air hos...

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PUM

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Abstract

A texture sprayer comprises an air compressor, a motor, a spray gun, an airflow switch, and a pressure switch. The air compressor is disposed to send the pressurized gas down a pneumatic line, and is driven by the motor. The spray gun receives pressurized gas from the pneumatic line, and expels the gas when actuated. The airflow and pressure switches are both disposed on the pneumatic line. The airflow switch is situated between the spray gun and the air reservoir, and powers the motor when gas flows through the airflow switch. The pressure switch powers the motor whenever pressure within the pneumatic line falls below a threshold value.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Application No. 62 / 281,999, filed January 22, 2016, by Max Carideo and Mark D. Shultz, entitled "FlowSensor Control of Texture Sprayer" and Steven D. .Benefit of U.S. Provisional Application No. 62 / 281,992, filed Jan. 22, 2016, entitled "Remote Priming of Texture Sprayer" by Becker and August F. Legatt, which Incorporated herein by reference. technical field [0003] The present invention relates generally to texture applicators, and more particularly to a flow-based control system enabling remote priming. Background technique [0004] Texture applicators are commonly used to apply materials or mixtures of materials to walls, roofs or other surfaces. Such materials may include, for example, solvents, adhesives, oils, paints, and other fluids, including materials with a high viscosity or highly grainy texture. Peristaltic pumps are used in some texture sprayers. [0005] Text...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F21/08E04F21/12
CPCE04F21/08E04F21/12F04B35/04F04B35/06F04B49/08F04B2205/05B05B7/1404B05B7/1486B05B7/0093F04B49/06
Inventor C·马克斯史蒂夫·D·贝克尔奥古斯特·F·莱格特马克·D·舒尔茨
Owner GRACO INC