Liquid level gauge and sampling device

Claim 1

A liquid level determining and sampling device comprising: an elongated tubular member having a lower end and an upper end, said lower end including a series of exterior screw threads, a sealing plug secured within said tubular member, a first opening assembly mounted about said sealing plug, liquid is to be able to be conducted through said first opening assembly into the interior of said tubular member; a sleeve having a lower end and an upper end, said upper end connected to said exterior screw threads, within and across said sleeve there is mounted a sealing plate, said sealing plate having a hole, said tubular member being movable relative to said sleeve between a lower position and an upper position, said lower position being when said sealing plug closes said hole, said upper position being when said sealing plug is spaced from said hole permitting passage of liquid through said hole and said first opening assembly into said tubular member; and a second opening assembly formed through the side wall of said sleeve, said second opening assembly connecting with said hole, whereby said lower end of said sleeve is to be positioned against and frictionally engaged with the bottom of a tank of liquid and with said tubular member in said upper position liquid is permitted to be conducted within said tubular member to obtain its own level, and the operator can then rotate said tubular member relative to said sleeve which is frictionally engaged with the bottom of the tank which results in said tubular member being located in said lower position thereby confining the liquid within said tubular member, said tubular member to be withdrawin form said tank to thereby determine the level of liquid within the tank and also the type of liquid.