Liquid level monitoring system
First Claim
1. A liquid level monitoring system for a tank, comprising:
- a float positionable in the tank and weighted to maintain buoyancy on the surface of a liquid contained in the tank; and
a cable having one end connected to the float, the cable moveable in response to vertical movement of the float caused by changes in the level of the surface of the liquid;
a converter assembly connected to the cable to convert the position of the cable into a position signal indicative of the level of the surface of the liquid in the tank;
a signal transmitter operably linked to the converter assembly, the signal transmitter adapted to receive the position signal and to transmit the position signal; and
a remote monitoring system located at a position remote from the tank, the remote monitoring system adapted to receive the position signal indicative of the level of the surface of the liquid in the tank from the signal transmitter.
1 Assignment
0 Petitions
Accused Products
Abstract
A liquid level monitoring system for a storage tank is disclosed. The liquid level monitoring system includes a liquid level gauge with a float positionable in the storage tank and weighted to maintain buoyancy on the surface of a liquid contained in the storage tank and a cable having one end connected to the float. The cable is moveable in response to vertical movement of the float caused by changes in the level of the surface of the liquid. A converter assembly is connected to the cable to convert the position of the cable into a position signal indicative of the level of the surface of the liquid in the storage tank. A signal transmitter is operably linked to the converter assembly. The signal transmitter is adapted to receive the position signal and to transmit the position signal. A remote monitoring system is located at a position remote from the storage tank. The remote monitoring system is adapted to receive the position signal indicative of the level of the surface of the liquid in the storage tank from the signal transmitter.
-
Citations
15 Claims
-
1. A liquid level monitoring system for a tank, comprising:
-
a float positionable in the tank and weighted to maintain buoyancy on the surface of a liquid contained in the tank; and
a cable having one end connected to the float, the cable moveable in response to vertical movement of the float caused by changes in the level of the surface of the liquid;
a converter assembly connected to the cable to convert the position of the cable into a position signal indicative of the level of the surface of the liquid in the tank;
a signal transmitter operably linked to the converter assembly, the signal transmitter adapted to receive the position signal and to transmit the position signal; and
a remote monitoring system located at a position remote from the tank, the remote monitoring system adapted to receive the position signal indicative of the level of the surface of the liquid in the tank from the signal transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A liquid level monitoring system in combination with a storage tank containing a liquid, the storage tank having a sidewall with an exterior surface, the liquid level monitoring system comprising:
-
a float positioned in the storage tank and weighted to maintain buoyancy on the surface of the liquid contained in the storage tank;
a cable having one end connected to the float, the cable moveable in response to vertical movement of the float caused by changes in the level of the surface of the liquid;
a converter assembly connected to the cable to convert the position of the cable into a position signal indicative of the level of the surface of the liquid in the storage tank;
a signal transmitter operably linked to the converter assembly, the signal transmitter adapted to receive the position signal and to transmit the position signal; and
a remote monitoring system located at a position remote from the storage tank, the remote monitoring system adapted to receive the position signal indicative of the level of the surface of the liquid in the storage tank from the signal transmitter. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method of monitoring a liquid level in a tank, comprising:
-
positioning a float in the tank, the float being weighted to maintain buoyancy on the surface of a liquid contained in the tank;
connecting one end of a cable to the float such that the cable is moveable in response to vertical movement of the float caused by changes in the level of the surface of the liquid;
converting the position of the cable into a position signal indicative of the level of the surface of the liquid in the tank;
transmitting the position signal to a remote location; and
receiving the position signal at the remote location; and
monitoring the position signal at the remote location.
-
Specification