Ransburg Corporation

Illinois Tool Works Inc.

Finishing Brands Holdings Inc.

Other

Carlisle Fluid Technologies, Inc.

Roger T Cedoz

James Paul Baltz

Thomas E Grime

David Martin Seitz

John F Schaupp

Daniel Joseph Hasselschwert

David M Seitz

Jessica Rose Bryant

John P Wojcik

Ghaffar Kazkaz

Lee A Sheridan

Alan H Fritz

Roger D Wheeler

Mark D Miller

Peter Green

Peter M Green

John Wojcik

A system includes an air cap configured to mount to a head of a spray device, wherein the air cap comprises at least one air passage having a curved flow path. A system may include a spray head having a first curved air passage that turns inwardly toward a central axis of the spray head, and a second curved air passage that turns inwardly toward the central axis of the spray head, wherein the first and second curved air passage are configured to direct first and second air flows inwardly toward a spray to shape the spray. A system may include a spray device having a liquid passage leading to a liquid outlet, and a curved air passage that gradually curves toward an air outlet.

Spray device having curved passages

A spray applicator system is provided with a reservoir manifold assembly having a separate reservoir for each different coating to be applied. Reservoirs are filled from a coating supply system and isolated electrically from the supply system when coating is dispensed from a reservoir to the applicator. Multiple sets of reservoirs can be used, so that an empty reservoir in one set can be filled while coating is dispensed from a reservoir in the other set. The set of reservoirs in which a reservoir is being filled is isolated electrically from the applicator, and of the set of reservoirs in which a reservoir is dispensing coating to the applicator is isolated electrically from the supply system.

Spray coating applicator system

A system, in certain embodiments, includes a spray device including a frame having a receptacle configured to receive a self-contained spray can. The spray device further includes a first conductive element configured to contact the self-contained spray can, and a first electrical conductor extending between the first conductive element and an earth ground such that a first electrical potential of the self-contained spray can is substantially equal to a second electrical potential of the earth ground while the self-contained spray can is in contact with the first conductive element. The spray device also includes a corona-charging electrode positioned adjacent to a spray nozzle of the self-contained spray can. The corona-charging electrode is configured to emit a stream of ions toward the self-contained spray can such that a spray of fluid from the spray nozzle passes through the stream of ions and becomes electrostatically charged.

Electrostatic spray system

A rotary atomizer spray coating device, in certain embodiments, has a bell cup with a generally parabolic flow surface. This generally parabolic flow surface provides additional surface area for dehydration of coating fluids, thereby improving color matching as compared to traditional bell cups, for example, by affording capability for higher wet solids content. In addition, the coating fluid accelerates along the generally parabolic flow surface, resulting in the fluid leaving the bell cup at a greater velocity than in traditional bell cups. Furthermore, a splash plate disposed adjacent the bell cup, in certain embodiments, is designed such that fluid accelerates through an annular area between the splash plate and the generally parabolic flow surface. This acceleration may substantially reduce or eliminate low-pressure cavities in which fluid and/or particulate matter may be trapped, resulting in an even application of coating fluid and more effective cleaning of the bell cup as compared with traditional bell cups.

Spray device having a parabolic flow surface

A coating material atomizing and dispensing system comprises an atomizer and an assembly of electrodes. The electrode assembly is removably coupled to the atomizer to permit the assembly to be disassembled from the atomizer to permit entry of the atomizer through an opening smaller than the atomizer-electrode assembly can pass through. A device is provided for supporting the assembly when the assembly is disassembled from the atomizer.

Coating material dispensing apparatus and method

A rotary atomizer includes a motor for spinning an output shaft. At least a portion of the shaft is electrically relatively non-insulative. An atomizing device is mounted on the shaft for rotation therewith. A passageway extends the length of the shaft. A feed tube extends through the passageway for supplying a coating material to be atomized to the atomizing device. At least a portion of the feed tube in contact with the coating material to be atomized as the coating material to be atomized flows through the feed tube toward the atomizing device is electrically relatively non-insulative. The atomizer further includes a device for promoting electrical charging of the coating material to be atomized as the coating material to be atomized is in contact with the electrically relatively non-insulative at least a portion of the feed tube.

Electrical connections for coating material dispensing equipment

An electrostatically aided coating atomizing and dispensing apparatus includes an atomizer, a voltage block, a source of electrically non-insulative coating material to be dispensed from the atomizer, an indirect charging apparatus, and at least one source of high magnitude electrical potential. The source of electrically non-insulative coating material is coupled to an input port of the voltage block. An output port of the voltage block is coupled to the atomizer. The indirect charging apparatus is operatively mounted with respect to the atomizer. The at least one source of high magnitude electrical potential is coupled to an input port of the atomizer and to an input port of the indirect charging apparatus.

Combined direct and indirect charging system for electrostatically-aided coating system

A seal assembly for providing multiple fluid tight seals about a valve needle or other axially moveable shaft, such as a valve needle in a spray gun. The seal assembly is disposed in a chamber through which the shaft passes. Two conical sealing surfaces are formed co-axially about the shaft at either end of the chamber. Two packing members are urged apart by a spring, each packing member being urged into a respective conical recess formed by one of the sealing surfaces and the shaft. Each packing member seals against one of the sealing surfaces and against the outer periphery of the shaft. A packing member may be formed to provide multiple stage sealing by providing a collar which causes a second end on the packing member to seal with the shaft.

Seal for spray gun

An improved nozzle assembly for an HVLP paint spray gun. The nozzle assembly includes at least an air cap and a fluid tip, and preferably also includes a baffle for uniformly distributing air flow through the nozzle assembly. The fluid tip has a conical front end which terminates at a fluid discharge orifice adjacent a vertex. The fluid tip is positioned to extend to and to be in axial alignment with an opening in the air cap. The fluid discharge orifice is located at substantially the front face of the opening. The fluid tip and the air cap form an annular air discharge opening. The conical front end of the fluid tip has a vertex angle of from 60.degree. to 90.degree., and preferably about 60.degree.. The air cap has a thin wall surface surrounding the opening and has an annular interior surface surrounding the opening in the shape of a frustum of a right circular cone having a vertex angle of from 100.degree. to 150.degree. and preferably of from about 124.degree. to about 128.degree.. The design of the air cap interior and of the fluid tip maximize the energy in the low velocity air prior to interaction with fluid discharged from the nozzle to optimize atomization efficiency.

Nozzle assembly for HVLP spray gun

A paint spray gun having a dual operating mode trigger. The trigger pivots on a gun body about an axis. The two operating modes are selected by radially positioning the trigger relative to the axis. In a first operating mode, fluid flow to a nozzle is gradually increased as the trigger is gradually squeezed to permit fluid flow control for feathering the applied coating. In this mode, the trigger is mechanically linked for actuating a valve needle. In a second operating mode, a small actuating movement of the trigger operates a valve which causes a piston to move the valve needle to its fully open position. The second operating mode provides only on-off fluid control with a very short trigger stoke and a low trigger force.

Spray gun with dual mode trigger

An ergonomic hand held paint spray gun which reduces operator fatigue and stress. The handle of spray gun has an ergonomically designed shape and the size of the handle may be changed through the use of different size handle covers. The spray gun has a plurality of triggers arranged to be operated by different fingers and to facilitate operation when the gun is held in different orientations to reduce fatigue and operating frequency stress on an operator's fingers. Some of the triggers operate low force valves which supply pilot air to a pilot valve which opens the fluid and air valves. The paint and air hoses may be attached to alternate locations on the gun to reduce hand and wrist fatigue when painting predominantly vertical surfaces or predominantly horizontal surfaces. A junction box may be located in the paint and air hoses to allow connection of lighter weight hoses to the gun. The junction box is located to be held in the operator's free hand and an optional trigger valve may be located on the junction box for supplying pilot air to remotely trigger the fluid and air valves in the gun. For operating an HVLP gun, a pressure regulator may be located in the junction box to drop high pressure air to the high volume low pressure air flow required by the gun.

Spray gun having both mechanical and pneumatic valve actuation

An improved hand held spray gun. The spray gun includes at least one manual trigger which when squeezed moves a valve needle to initiate fluid flow. A knob is provided to adjust the maximum fluid flow when the trigger is squeezed. When the trigger is released, a compression spring returns the valve needle to its closed position. An over travel spring is compressed only if an excessive force is applied to the trigger to prevent damage to the spray gun. The over travel spring is stronger than the valve needle return spring so that it compresses only after the spray gun is fully on. If the maximum fluid flow adjustment knob is turned too far, compressed air is vented through the knob as a tactile warning to the spray gun operator to not turn the knob further. The vented air also may whistle to provide an audible warning that the knob should not be turned further.

Growing community of inventors

Curtice, OH, United States of America

Roger T Cedoz