Fluid handling – Processes – With control of flow by a condition or characteristic of a...
Patent
1997-05-14
2000-02-22
Walton, George L.
Fluid handling
Processes
With control of flow by a condition or characteristic of a...
73304R, 73313, 137389, 137395, 137403, 137558, 137572, 141 83, 141198, 222 52, 222 64, 340620, F16K 2116, F16K 3102, F16K 3112
Patent
active
060268379
ABSTRACT:
The present invention provides an automated chemical drain system which includes a buffer tank for collecting used chemical from a process machine, at least two level sensors in the buffer tank for sensing a fluid level and sending out a signal, a controller for receiving the signal from the level sensors and then sending out a second signal to a solenoid controlled valve when the first signal exceeds a threshold value, a solenoid controlled valve that is in fluid communication with the buffer tank and a collection tank, and a collection tank for collecting used chemical from the buffer tank. The collection tank may further be provided with a weight sensing device such that a signal may be sent out to the controller when the weight of the collection tank exceeds a maximum allowable value so that the controller shuts off the solenoid controlled valve to avoid overflow in the collection tank and to alert a maintenance operator to empty the collection tank.
REFERENCES:
patent: 3876037 (1975-04-01), Rath, Jr.
patent: 3882967 (1975-05-01), Gulla et al.
patent: 4132242 (1979-01-01), Carroll, Jr.
patent: 4135548 (1979-01-01), Sears
patent: 4244385 (1981-01-01), Hotine
patent: 4265262 (1981-05-01), Hotine
patent: 4660586 (1987-04-01), Knapp et al.
patent: 4852604 (1989-08-01), Wales et al.
patent: 5519638 (1996-05-01), Tiao
Taiwan Semiconductor Manufacturing Company , Ltd.
Walton George L.
LandOfFree
Automated chemical drain system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automated chemical drain system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automated chemical drain system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-513063