Railroad tank car
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 1, 1980
Grant Date -
N/A
app pub date -
Aug 10, 1978
filing date -
Aug 10, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flexible diaphragm can be moved to line opposite surfaces of a tank vehicle so that incompatible fluids alternately can be transported in the vehicle without the need for cleaning it. Both sides of the diaphragm are vented to the atmosphere automatically whenever the vehicle container is filled with fluid. The diaphragm is prevented from entering a manway on the vehicle, and an outage gauge is confined entirely within the manway to prevent damage to the diaphragm.
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