Paint spray gun
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 25, 1992
Grant Date -
N/A
app pub date -
Dec 6, 1990
filing date -
Dec 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved high volume low pressure air (HVLP) operated paint spray gun of the type having adjustable fan air and suitable for operation from a high pressure air source. The high pressure air passes from a high pressure chamber through first or second parallel calibrated orifices to supply both low pressure atomization air and low pressure fan air for controlling the shape of the spray pattern. In one embodiment, both orifices supply air to a low pressure chamber which in turn supplies both atomization air and fan air. A fan air control ring adjusts the flow of low pressure air to fan jet orifices. Rotating the fan air control ring controls both air flow through the second orifice to the low pressure chamber and air flow from the low pressure chamber to the fan jet orifices. In a second embodiment, one orifice supplies only low pressure atomization air and the other orifice supplies only low pressure fan air. A valve adjusts the flow of fan air.
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