Graco Inc.

Graco Minnesota Inc.

Electric Torque Machines Inc.

Graeco Inc.

Kwok, Kui-chiu

Lind, Robert J.

Robert J Lind

Stanley G Karwoski

Thomas F Janecek

Timothy Sean Roman

Lawrence J Lunzer

Jeremy Scott Reynolds

Tyler Kenneth Williams

Christopher A Lins

Kui-Chiu Kwok

Alexander O Bally

Benjamin R Godding

David N Padgett

Yamin Ma

Michael J Mansheim

Scott A Olson

Mark J Brudevold

Norman N Fender

Matthew R Theisen

Ann Catherine Feitel

Nicholas P Peterson

Gordon V Mommsen

Jon M Knutson

Dale R Hemming

Tera D McCutcheon

William C Scherer

Matthew R Smith

Richard Grady

Robert G Gilbert

Russel R Paul

Charles E Kasten

Thomas M Grimm

Robert Gilbert

A fluid moving apparatus includes an electric motor having a rotor and a stator and a propeller. The rotor rotates relative to the stator on an axis to generate a rotational output. The rotational output is provided to the propeller to power the marine propulsion apparatus. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the axis. A portion of a housing of the motor extends into the aquatic environment to facilitate heat dissipation.

Marine propeller system with high torque drive

An adaptive hot melt feed system includes a melt system, a feed system, a gas control device, a sensor, and a controller. The melt system includes a heated vessel. The feed system is configured to deliver a solid material to the vessel of the melt system for melting. The gas control device is configured to control a supply of gas provided to the feed system to drive the solid material from the feed system to the melt system. The sensor can be configured to detect an amount of material in the vessel of the melt system. The controller is in electronic communication with the gas control device and is programmed to signal the gas control device to vary the supply of gas to the feed system based on a fill metric determined by the controller.

Adaptive hot melt feed

A plural component dispensing system individually delivers separate material components to each of a plurality of proportioners. Each of the proportioners regulates volumetric flow of each of the separate material components to produce a target ratio of the separate material components associated with the proportioner. The target ratios associated with the plurality of proportioners can be the same or different target ratios. Each proportioner delivers the separate material components at the associated target ratio to one of a plurality of dispensing devices. Each dispensing device mixes the separate components received at the corresponding target ratio and delivers the components as a mixture.

Multi-dispenser plural component dispensing system

In an electric airless sprayer (), as the motor () temperature approaches allowable limits, several performance cutbacks can be used to prevent overheating. The preferred method is to gradually reduce the controlled pressure. If the temperature continues to rise, the control () switches to on/off or deadband control. If the temperature continues to rise in spite of these measures, the control () shuts the unit down.

Sprayer thermal protection

Sensors (and) and an interactive display () are added to an airless gas powered line striping machine () to provide the operator with a variety of information about the operating parameters. In addition to the pressure sensor/transducer () required to control the pressure through a clutch, the system includes a sensor (reed switch in the preferred embodiment) () to count pump strokes or drive revolutions, a sensor () to monitor when the gun trigger is activated and a sensor () to monitor wheel rotation (hall effect sensor detecting pulses from gear mounted on wheel in the preferred embodiment). A digital display () is included to read out measured and calculated values.

Line striper sensor and display system

An electrostatic method for increasing the transfer efficiency of spray finishing using lower voltages than are normally required and used with electrostatic spraying. The positioning and construction of ground electrodes ( ) behind the air cap ( ) helps ensure a clean operation.

Low voltage electrostatic charging

A voltage isolation device for controlling the flow of conductive liquid between a liquid supply source and a liquid destination source. The isolation device has an inlet connected to the supply source and has a yoke slide valve positionable along a pair of rods; one of the rods engages a slideable tube at the inlet to provide a liquid seal and the yoke slide valve may be positionable to slide the tube away from the rod to thereby provide a flow path for liquid through the tube and out the slide valve. A pair of seal assemblies each having axially spaced apart seals have formed sealing areas containing a non-conductive seal liquid which is capable of dissolving the conductive liquids being utilized. A scheme is provided to route arcs which result when the charged fluid is connected to the grounded fluid so as to locate the arc away from parts which could be damaged by it.

Waterbase voltage block and paint valve

A liquid-atomizing spray gun having an improved nozzle construction for spraying liquids under predetermined hydraulic pressures, and with the assistance of carbon dioxide gases, wherein the nozzle includes a forwardly-projecting shield having ports directed toward the atomized spray pattern emanating from a spray tip. The nozzle also includes ports for ejecting CO.sub.2 gas for assisting in the atomization process, the overall design providing CO.sub.2 -assisted hydraulic spraying and preventing air entrainment into the atomized particles in the region proximate the spray nozzle.

CO.sub.2 -assisted spray gun and nozzle

Electrostatic spray gun

An electrostatic spray gun for the application of paints and other coatings has a high voltage power supply having a contact at the front end thereof. A flange on the end of the power supply surrounds the contact and a rubber boot seal snaps over the flange. Located within the rubber boot is a conductive rubber pin which contacts with a conductor located in the barrel of the gun. Utilization of this design minimizes capacitance in the front end of the gun and also virtually eliminates air volume in the area which in turn limits the production of harmful ozone.

Electrostatic spray gun power supply connection

A spray gun is provided with an angled spray head for use on painting robots. The spray head is designed for attachment to a conventional spray gun and utilizes an angled retaining ring in conjunction with a conventional retaining ring, a conventional spray cap, and angled fluid nozzle. This arrangement allows rotation and orientation of the pattern at various angles relative to the body of the robot as desired by the operator. The electrode needle is formed of flexible material so as to enable it to flex through the angled fluid passage.

Angled spray gun

A device and method of determining the voltage and current existing at the electrostatic electrode in a electrostatic spray gun, the spray gun containing a self-contained power supply including a turbine generator operating the air supplied to the gun, the power supply producing a low voltage d.c., and a voltage multiplier changing the voltage to a high potential which is applied to the electrode of the spray gun, a sensing and measuring circuit for determining the return current or ground current from the electrode to the power supply and producing a voltage directly related to the ground current and producing a voltage signal which may be measured directly to indicate the ground current; a circuit establishing a base voltage from the power supply for comparison against the ground current voltage signal and obtaining a differential voltage which may be measured and which is directly proportional to the electrode voltage.

Electrostatic spray gun voltage and current monitor

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Robbinsdale, MN, United States of America

Robert J Lind