Tank fill control apparatus and method
AssigneeTara Oilfield Services LTD
InventorMartin Sheridan
Life of this patent
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Abstract
Tank-installable switches for installation through a thief hatch port on a tank. In some embodiments, the switch may comprise a tubular body and a liquid level sensor. The liquid level sensor may include: a detector; a float in and moveable along a length of the lower end; and a rod connecting the float to the detector. The liquid level sensor may be configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed.
Claims7
A tank-installable switch for installation through a thief hatch port on a tank, the tank-installable switch comprising:
- a tubular body including:
- an upper end defining an open top;
- a lower end;
- an outer surface;
- an annular mounting flange on the outer surface between the upper end and the lower end, the annular mounting flange extending radially from and extending circumferentially about the tubular body and including a plurality of spaced apart boltholes configured for bolting onto the thief hatch port;
- and
- an upper annular flange at the upper end, the upper annular flange extending radially from and extending circumferentially about the upper end and including a plurality of spaced apart boltholes;
- and
- a liquid level sensor including:
- a detector;
- a float in and moveable along a length of the lower end;
- and,
- a rod connecting the float to the detector, the liquid level sensor configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed.
Dependencies are inferred from the claim text.