Abstract:
The machine for coating an optical article with a predetermined coating composition, includes a vacuum chamber (8) having an interior space (31) configured to receive the optical article, a vacuum pump (20) connected to the vacuum chamber (8), a nebulizer (40) configured to carry out a vacuum nebulization treatment of the composition for depositing it on the optical article in the vacuum chamber, and a control unit (2) configured to control the vacuum pump; the control unit being configured to cause the vacuum pump to suck gases from the vacuum chamber to bring it to a predetermined required pressure for the vacuum nebulization treatment, and the control unit and the nebulizer are configured to nebulize the predetermined coating composition which is liquid into a mist of aerosol droplets and to direct the droplets towards at least a surface of the optical article.
Abstract:
A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container coupled to the spray gun body, wherein the chemical container is configured to contain liquid chemical, a venturi including a converging section, a throat, and a diverging section, wherein the venturi is coupled to the body, and wherein the chemical container is fluidly coupled to the throat, an air inlet port formed in the diverging section and configured to fluidly couple the diverging section to a source of air, and multiple nozzles, wherein each nozzle has a different orifice diameter, and wherein only one nozzle at a time can be selected to provide a fluid output from the spray gun.
Abstract:
To clean an atomizer used for automatic series-production coating of work pieces in a cleaning device provided for this purpose, the outer housing of the atomizer is sprayed by nozzles of the cleaning device, while simultaneously painting and rinsing agents sprayed by the spray head of the atomizer in a short rinsing process are captured and discharged through a pipe section in the interior of the cleaning device. In electrostatic atomizers, voltage equalization between the atomizer and the cleaning device is performed beforehand. Through additional measures, the atomizer can be moved by the handling machine provided for this purpose only from one proper direction towards the cleaning device.
Abstract:
A clog-resistant injector spray nozzle allows relatively unobtrusive insertion through a small access aperture into existing ductwork in occupied buildings for atomized particulate sealing of a ductwork. The spray nozzle comprises an easily cleaned and easily replaced straight liquid tube whose liquid contents are principally propelled by a heated propellant gas, such as heated air. Heat transfer is minimized from the heated propellant gas to the liquid tube until they both exit the injector, thereby greatly reducing the likelihood of nozzle clogging. A method of duct sealing using particles driven by heated propellant gas is described, whereby duct-sealing operations become both faster, and commercially practicable in inhabited commercial and residential buildings.
Abstract:
A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump which generates low pressure air for powering one or more atomizing devices, such as spray guns, with the intake of the induction pump being located a predetermined distance away from the atomizing devices so that overspray produced thereby is prevented from being fed along with ambient air into the induction pump. The system also controls the supply of compressed air and can be equipped with a compressed air driven intake fan for turbo charging the ambient air fed to the jet venturi induction pump. A booster source of regulated low pressure air is also coupled to the feedline(s) coupled to the individual atomizing devices to augment the low pressure air generated by the jet venturi induction pump for certain spraying tasks.
Abstract:
A spray gun with a hollow handle has a trigger that opens a valve in the handle to admit compressed air. Lateral openings adjacent the handle feed secondary air by the venturi effect. The trigger also retracts a plunger in the spray head that controls liquid flow, with the valve opening slightly before the plunger. The spray head includes a sleeve with converging orifices for compressed air, and this sleeve is movable axially relative to the plunger to control the spray pattern.
Abstract:
Foam dispenser pumps and refill units are disclosed herein. A refill unit (10) comprises a container (12) holding a supply of foamable liquid and a foam pump (100) connected to the container. The pump incorporates a valve arrangement to move liquid through the pump and to create the foam. The liquid foam pump may include a housing (104) and a valve stem (110) that moves in two directions. The valve stem has an inlet liquid pathway (130) and an outlet liquid pathway (130) to convey liquid to a mixing chamber (158). A moveable valve body (118) is movable by the valve stem in a first direction to move the valve body to the first position to open a liquid inlet pathway (fig. 1), and moveable in a second direction to move the valve body to the second position to open the outlet liquid pathway (fig. 2).
Abstract:
Foam dispenser systems, pumps and refill units are disclosed herein. A refill unit for refilling a foam dispenser system comprises a container for holding a supply of foamable liquid and a foam pump connected to the container. The pump incorporates a simple and inexpensive valve arrangement to move liquid through the pump and to create the foam. For example, a liquid foam pump may include a housing and a valve stem that moves in two directions. The valve stem has an inlet liquid pathway and an outlet liquid pathway to convey liquid to a mixing. In addition, a moveable valve body is movable by the valve stem in a first direction to move the valve body to the first position to open a liquid inlet pathway, and moveable in a second direction to move the valve body to the second position to open the outlet liquid pathway.
Abstract:
A high-volume, low-pressure manual spray gun (10, 92, or 116) operates from a conventional high pressure compressor. The gun (10, 92, or 116) has a barrel (14) that supports a spray head (20), a handle (22) that extends downwardly from the barrel (14), an inlet port (24) at the bottom of the handle (22) for receiving compressed air, and a passage (26) in the handle (22) directing the compressed air toward the barrel (14). A venturi (68, 94, or 118) is mounted within the barrel (14) and discharges a stream of compressed air downstream toward the spray head (20). The venturi (68, 94, or 118) entrains ambient air through one or more orifices (76 or 130) in the barrel (14). An air valve (36) mounted within the handle (22) controls the flow of compressed air through the gun (10, 92, or 116). A liquid valve (38) controls discharge of liquid through a liquid jet (42) in the spray head (20). The air valve (36) and liquid valve (42) are operated with a common trigger (40). The venturi (68, 94, or 118) is entirely separate from the air valve (36) and liquid valve (38), and no linkage extends through the venturi (68, 94 or 118) to operate the air valve (36). The venturi (94 or 118) is preferably sealed to the passage in the handle (22) to receive all compressed air flows directly from the handle (22), permitting ambient air to be entrained from rearward of the barrel (14).
Abstract:
A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump (60) supported by a closed induction chamber (74) having a spring biased (94) intake valve (90). The jet venturi induction pump (60) generates low pressure air for powering one or more atomizing devices, such as spray guns (461-46n), with the intake (18) of the induction pump being located a predetermined distance away from the atomizing devices (461-46n) so that overspray produced thereby is prevented from being fed along with ambient air into the induction pump. In one embodiment, the induction pump (60) and induction chamber are located within a plenum chamber (10). The system also controls the supply of compressed air via a pressure regulator (26) and, when desired, can be equipped with a compressed air driven intake fan (17) for turbo charging the ambient air fed to the jet venturi induction pump. A regulated booster source (26') of regulated low pressure air is also coupled to the feedline(s) (42) supplying the individual atomizing device(s) (46) to augment the low pressure air generated by the jet venturi induction pump (60) for certain spraying applications.