초록 ▼

A floatless liquid level gauge assembly utilizing polymeric resistive/conductive elements is provided which measures the liquid level of partially conductive or conductive liquids in a tank using a three terminal voltage divider network or a two terminal voltage or current network. The polymeric res

A floatless liquid level gauge assembly utilizing polymeric resistive/conductive elements is provided which measures the liquid level of partially conductive or conductive liquids in a tank using a three terminal voltage divider network or a two terminal voltage or current network. The polymeric resistive/conductive element(s) extending into the tank and the liquid in the tank provide an electrical path which provides a signal proportional to the liquid level in the tank.

대표청구항 ▼

A tank having a floatless gauge comprising: (a) a tank made of conductive material for containing a conductive fluid, said tank having a non-uniform horizontal cross sectional area; (b) a terminal attached to said tank; (c) a base made of insulating material attached to said tank; (d) an elongate el

A tank having a floatless gauge comprising: (a) a tank made of conductive material for containing a conductive fluid, said tank having a non-uniform horizontal cross sectional area; (b) a terminal attached to said tank; (c) a base made of insulating material attached to said tank; (d) an elongate electrically resistive/conductive polymeric member connected at one end thereof to said base such that it is insulated from said tank and extending into said tank such that it can be contacted by liquid in said tank, said elongate member having a resistance profile corresponding to the variations in horizontal cross sectional area of said tank; and (e) a second terminal connected to said polymeric member for connection to a voltage indicator.