Abstract:
A spray gun (1) forms a desired spray pattern by atomizing by means of atomizing air (A) a spray liquid which is sprayed from a liquid ejection port (44) opened/closed by a needle valve (4), and jetting pattern air (P) to the flow of spray mist of the atomized spray liquid. A nozzle taper angle (θ1) is set in a range of 5° to 15°, and a cap taper angle (θ2) is set in a range of 20° to 40°. Atomizing air (A) is jetted from a nozzle insertion hole (58) toward the center of a nozzle (3). Pattern air (P) is jetted in a spreading suppressed region (R) wherein the flow of the spray mist does not spread over an area greater than or equal to a predetermined cross-sectional area, to the flow of spray mist, and as a result, the spray mist is more uniformly sprayed over a wide range.
Abstract:
The subject invention relates to a power sprayer that offers flexibility of movement because it can be battery operated and is designed to eliminate the need for cleaning its spray nozzle after being used. Paint colors can be changed quickly by simply changing the media cartridges that are adapted for simple attachment to the sprayer. These media cartridges also eliminate the inconvenience associated with refilling conventional power sprayers with a desired media. The present invention more specifically discloses a sprayer media cartridge system comprising: (a) a media container, (b) a self-cleaning nozzle, (c) a media shut-off means, (d) a primary media atomizing aperture in a configuration relative to the self-cleaning nozzle, (e) a movable media containment member within the media container, (f) a gas transfer interface, and (g) a power unit engagement means.
Abstract:
Exemplary illustrations of a bell cup for a rotary atomizer and method of using the same are disclosed. The exemplary illustrations are generally directed to the control of the rotating bell plate of a rotary atomizer used for the serial coating of work pieces. An air flow component may be created by the structural design of the bell plate and/or of an element of the rotary atomizer and by the rotation of the bell plate. The air flow component may correspond to the bell plate design, and the element may be adjacent to the bell plate and stationary relative to same. The air flow component may be measured and compared to a predefined reference value.
Abstract:
This invention is directed to a method for producing a coating layer of a coating composition comprising two or more components. This invention is also directed to a spray gun having two or more spray channels for producing such coating layer.
Abstract:
The present technique provides a system and for improving control of a needle valve in a spray coating device. An exemplary spray coating device of the present technique has a needle valve assembly that controls entry of a fluid to a fluid delivery tip. The needle valve assembly includes an adjustment element that is at least partially located on an exterior of the spray coating device such that the adjustment element is accessible by an operator. The adjustment element may be actuated to improve a seal around the needle so that fluid does not leak from around the needle valve assembly.
Abstract:
A spray coating device, in one embodiment, is provided with a liquid passage, an air passage, one or more valves configured to open and close flow of liquid through the liquid passage and air through the air passage, a trigger coupled to the one or more valves, and a spray head configured to generate a non-conical liquid spray. The spray head includes a liquid exit in fluid communication with the liquid passage, wherein the liquid exit has a longitudinal axis of liquid flow, an air exit in fluid communication with the air passage, wherein the air exit is coaxial with the liquid exit, a first plurality of air shaping orifices in fluid communication with the air passage, wherein the first plurality of air shaping orifices have first axes that generally converge toward a first point along the longitudinal axis at first acute angles relative to the longitudinal axis, and a second plurality of air shaping orifices in fluid communication with the air passage, wherein the second plurality of air shaping orifices have second axes that generally converge toward a second point along the longitudinal axis at second acute angles relative to the longitudinal axis, the first and second acute angles are different from one another, and the first and second points are in series one after another along the longitudinal axis.
Abstract:
A mist generating apparatus (100) is provided. The apparatus (100) has a longitudinal axis (L) and comprises first and second opposing surfaces (140,142) which define a transport fluid nozzle (150) between them. The apparatus (100) also has a working fluid passage (132) having an inlet (130) connectable to a supply of working fluid, and an outlet (160) on one of the first and second surfaces (140,142). The working fluid outlet (160) communicates with the transport fluid nozzle (150). The transport fluid nozzle (150) has a nozzle inlet (151) connectable to a supply of transport fluid, a nozzle outlet (155), and a throat portion (153) intermediate the nozzle inlet (151) and nozzle outlet (155). The nozzle throat (153) has a cross sectional area which is less than that of either the nozzle inlet (151) or the nozzle outlet (155). The transport fluid nozzle (150) projects radially from the longitudinal axis (L) such that the nozzle (150) defines a rotational angle of at least 5 degrees about the longitudinal axis (L). A method of generating a mist using the apparatus is also provided.
Abstract:
A system, in certain embodiments, may include a spray coating device having a self-contained air system. The self-contained air system is adapted to supply a desired amount of air pressure within the spray coating device. Further, the self-contained air system comprises only an air blower rendering the spray coating device air tank-less.
Abstract:
A hand held spray system for skin treatments includes air outlets for delivering heated air to improve the efficacy and comfort of the spraying experience. The heated air may also heat a liquid tip and transfer this heat to the skin treatment. The heated air may be applied while spray is emitted from the nozzle to increase the spray cloud temperature, or may be applied before or after the spray application, with the spray turned off, to warm or dry the skin. The spray system includes a heating source to warm the air as it passes through the system and is delivered through atomizing and/or pattern shaping orifices.
Abstract:
In accordance with certain embodiments, a system includes a spray device having a liquid pathway leading to a liquid exit, an air pathway leading to an air exit directed toward a spray region downstream of the liquid exit, and an assembly disposed in the liquid pathway adjacent the liquid exit. The assembly includes a threadless pintle generally fit into a sleeve in a concentric manner without threads. The assembly also includes a generally annular passage between the threadless pintle and the sleeve and a passage coupled with the generally annular passage. The generally annular passage also has a cross-sectional area that alternatingly increases and decreases in a lengthwise direction along the liquid pathway.