Telecommunication system for remote LP gas inventory control
First Claim
Patent Images
1. Telecommunication apparatus to indicate the level of liquefied gas in a remote tank comprising:
- a float in the tank;
magnetic field generating means;
means operably connecting said float for moving said magnetic field generating means as the level of liquefied gas in the tank changes;
a pair of Hall effect sensors;
means securing each of said sensors outside the tank in a predetermined relationship to said magnetic field, said sensors being adapted for delivering electrical signals in response to a change in the level of liquefied gas in said tank;
receiver means mounted remotely from said tank; and
telecommunication means associated with said sensors and said receiver means for transmitting electrical signals from said sensors to said receiver means, said receiver means being adapted for indicating the level of liquefied gas in said tank.
0 Assignments
0 Petitions
Accused Products
Abstract
A computerized system for sensing the level of liquefied gas in a tank at a remote location and transmitting data between the location of the tank and the computer to maintain files for inventory control. A microprocessor collects electrical signals from a tank mounted transducer, which is actuated by a float gauge, and periodically sends data over telephone lines to a computer located remotely from the tank. The computer receives and processes data during time windows established for each of a group of tanks to provide current data regarding the supply of liquefied gas in the tanks.
-
Citations
14 Claims
-
1. Telecommunication apparatus to indicate the level of liquefied gas in a remote tank comprising:
- a float in the tank;
magnetic field generating means;
means operably connecting said float for moving said magnetic field generating means as the level of liquefied gas in the tank changes;
a pair of Hall effect sensors;
means securing each of said sensors outside the tank in a predetermined relationship to said magnetic field, said sensors being adapted for delivering electrical signals in response to a change in the level of liquefied gas in said tank;
receiver means mounted remotely from said tank; and
telecommunication means associated with said sensors and said receiver means for transmitting electrical signals from said sensors to said receiver means, said receiver means being adapted for indicating the level of liquefied gas in said tank. - View Dependent Claims (2, 3, 4, 5)
- a float in the tank;
-
6. Telecommunication apparatus to indicate the level of liquid in a tank comprising:
- a float gauge indicating the level of liquid in the tank;
transducer means associated with said float gauge for delivering electrical signals in response to a change of the level of liquid in the tank;
signal transmitting means for transmitting electrical signals to a remote location;
interface means associated with said transducer means and said signal transmitting means for transferring electrical signals between said transducer means and said signal transmitting means; and
control means associated with said transducer means and said signal transmitting means, said control means being adapted for activating said signal transmitting means for transmitting signals to a remote location in response to said interface means delivering signals from said transducer means. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
- a float gauge indicating the level of liquid in the tank;
Specification