초록 ▼

Apparatus for transferring liquid from a first tank to a second tank having supply line coupled to the first tank, a fill line connected to the second tank, a return line leading to the first tank or a sump, a pump for causing liquid to flow from the supply line to the fill line when the apparatus i

Apparatus for transferring liquid from a first tank to a second tank having supply line coupled to the first tank, a fill line connected to the second tank, a return line leading to the first tank or a sump, a pump for causing liquid to flow from the supply line to the fill line when the apparatus is in a fill mode, from the fill line to the return line when the apparatus is in a purge mode, and a programmable control for placing the apparatus in a purge mode in response to any one of the following signals, a signal indicating that the fill line is not properly attached to the second tank, a signal indicating that the liquid in the second tank has reached a given level, and a signal that the volume of liquid delivered by the pump is that which will fill the second tank to the given level. The programmable control detects leaks and checks whether the rate at which the pump delivers liquid is within a given range.

대표청구항 ▼

Liquid transfer apparatus for transferring liquid from a storage tank comprising: a supply line; a fill line; a shunt line; a return line adapted to be coupled at one end to the storage tank; a pump having an inlet and an outlet; first valve means for selectively coupling said inlet of said pump to

Liquid transfer apparatus for transferring liquid from a storage tank comprising: a supply line; a fill line; a shunt line; a return line adapted to be coupled at one end to the storage tank; a pump having an inlet and an outlet; first valve means for selectively coupling said inlet of said pump to one end of said supply line or to one end of said shunt line; the other end of said shunt line being coupled to said fill line; and second valve means for selectively coupling the outlet of said pump to one end of said fill line or to one end of said return line; whereby liquid may be delivered by said pump from said supply line to said return line, from said supply line to said fill line, or purged from said fill line to said return line depending on the coupling provided by said first and second valve means.