Paint sprayers

Stewart B, Beck MH Contact sensitivity to methyl ethyl ketone in a paint sprayer. Contact Derm 26-.52-53, 1992... 

Spray cleaning of parts with solvent, using an airless gun similar to a paint sprayer, is also practiced. Spray cleaning is typically performed in a ventilated fume hood so as to protect the worker from solvent fumes. In addition to the fume hood, an emissions control system is often required. Many local air quality agencies prohibit the spray cleaning of parts with solvent or require an appropriate emission control system to be in place. 

One clinical report of a hirnian exposed to HDI for an intermediate-dmation was reported. A 60-yem-old male automobile paint sprayer was examined following health complaints, which included shortness of breath, a productive cough, and an intermittent fever (usually about 6 hours after he finished work) of 1-month duration. Symptoms were reported to subside on weekends. He had used paint materials containing HDI for about one month and had worked without a protective mask. Clinical signs were... 

To facilitate the creation of a high vacuum, heating the walls of a system will help drive off moisture. On a glass system, this heating is typically done with a hot air gun. It is important that any heat source is not aimed at stopcocks or joints on the system. However, it is often necessary for very large stopcocks or joints to be heated before they can be rotated or separated. Therefore, pay attention and do not heat any more than necessary. These stopcocks or joints require frequent grease replacement. Do not dwell the hot air gun on any particular spot while the system is under any level of vacuum and the hot air gun is on full. It is possible for the glass to get sufficiently hot for air pressure to collapse the wall of the system. To prevent this, simply move the hot air gun as one would move a paint sprayer. 

Then we are in a house, not at all like mine but assumed by my dreaming brain to be mine, and Richard s friend is spray painting the white wall (we have none in our house) with blue paint (neither do we have any blue rooms). The paint sprayer is a tank device of the type used to apply copper sulphate to grapevines or to exterminate cockroaches. Suddenly, the paint is being sprayed not only on the wall but upon a painting hanging on the wall. 

Rarely is a product introduced into the body by accidental injection. When this does occur the product is usually being used in a system employing high pressure equipment, such as airless paint sprayers. In the experience of this writer, the material injected rarely is sufficiently toxic to warrant concern. However, such exposures can result in massive tissue destruction since the injected material can compress blood vessels in the area of the injection. Such compression can interrupt the blood supply to the affected area and with such interruption, tissue can die quickly. First aid advice must provide such information and direct the patient to obtain professional medical care promptly. 

End Effector The purpose of your arm is to move your hand. Similarly, the purpose of a robotic arm is to move an end effector, an attachment that is designed for a specific task. It is placed at the end of a robot s arm. The end effector is attached to the wrist joint at the end of the arm. It may be a type of gripper, like your hand, or a tool (like a drill, welding rod, or paint sprayer). The end effector is what makes a robotic arm adaptable to many different tasks. 

Corporation (Golden, CO). The reactor, 1.22m wide by 2.44 m, consisted of a fiberglass-reinforced plastic I-beam frame. A transparent fluoropolymer film, treated to accept adhesives, formed the front and back windows of the reactor. The film windows were attached to the reactor frame with foam tape coated on both sides with an acrylic adhesive. The catalyst, titanium dioxide (Degussa P25), was coated onto a structured, perforated polypropylene tubular packing commonly used in oil-water separators. The Ti02 was suspended in water as a slurry and sprayed onto the tubular supports with a new paint sprayer until the supports were opaque. Fluid modeling of airflow flnough the reactor showed that a 5.1 cm PVC manifold, located at the inlet and outlet of flie reactor, would provide an even flow distribution. Small (0.6 cm) holes, drilled into flie manifold at one inch intervals, provided the even flow distribution required for efficient contact of the contaminated air with the catalyst. 

Air has considerable power when it is compressed. Compressed air is used to drive all sorts of machines, from construction tools to paint sprayers. 

Figure 5.21 Photograph of jets formed from an oil-ethanol mixture in a laboratory scale model of an electrostatic paint sprayer. Reproduced with permission from Hines, /. App. Phys. 37, 2730 (1966). Copyright (1966) American Institute of Physics.

A specific example of the continuity between applied and fundamental research, of direct relevance to the subject of this book (see Chapter 5), is provided by the direct line of development starting from an electrostatic paint sprayer designed for industrial use, through attempts by materials scientists to prepare single molecules of synthetic polymers in the gas phase to enable fundamental studies, to the eventual award of a Nobel Prize to John B. Fenn for the invention of electrospray ionization mass spectrometry and its application to biochemistry and molecular biology. 

McFadden JP, Rycroft RJG (1993) Occupational contact dermatitis from triglycidyl isocyanurate in a powder paint sprayer. Contact Dermatitis 28 251... 

Occupational diseases due to lead have been known among miners and smelters, foundry and storage battery workers, potters, and paint sprayers. Lead-containing pigments were widely used in paints white lead (lead oxide/carbonate), chrome... 

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