Liquid injection device, system and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 7, 1997
Grant Date -
N/A
app pub date -
Feb 8, 1995
filing date -
Feb 8, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid injector has a tubular body surrounding and shielding a glass tube. The body and tube are sealed at opposing ends by a valve coupler and an end fill cap, each with there own O-ring seals. There are three openings through the body to allow for viewing of the contents of the tube, and to allow for light to pass into the tube. The injector is connected at the valve coupler through a hose and an on-off valve to the low side of an air conditioning system. It is connected through the end fill cap to a refrigerant charging system. The valve is shut off and the end fill cap is removed. The body is held upright and the liquid to be injected is poured into the glass tube. The fill end cap is replaced and the valve turned on. The charging system propels the liquid into the air conditioning system. The tube can be viewed through the openings to determined that a sufficient quantity of the liquid has been propelled from the injector.
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