Coating apparatus – Control means responsive to a randomly occurring sensed... – Responsive to attribute – absence or presence of work
Patent
1995-11-20
1997-05-27
Edwards, Laura
Coating apparatus
Control means responsive to a randomly occurring sensed...
Responsive to attribute, absence or presence of work
118684, 118708, 118710, 118712, 118300, 118306, 118408, B05C 500
Patent
active
056328184
ABSTRACT:
There is provided a liquid injection apparatus for use in a method of lining the internal surface of a pipe. The apparatus comprises a push car having a frame structure, a liquid tank for storing a necessary amount of liquid to be injected into the pipe, a liquid pump for pumping the necessary amount of liquid so as to inject the liquid into the pipe, and a liquid injection controlling device for controlling the pressure of the liquid being supplied through the liquid pump, for stopping the liquid injection after a predetermined amount of liquid has been injected into the pipe, and for stopping the liquid injection if the liquid pressure in the pipe changes beyond a predetermined range. The liquid tank, the liquid pump and the liquid injection controlling device are installed together in the push car so as to be easily movable.
REFERENCES:
patent: 4381727 (1983-05-01), Yamaguchi et al.
patent: 4798474 (1989-01-01), Daily
patent: 5089297 (1992-02-01), Koga et al.
patent: 5246641 (1993-09-01), Perkins et al.
Itagaki Masaaki
Toyoda Shigeru
Yagi Shuichi
Edwards Laura
Tokyo Gas Co. Ltd.
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