OVERFILL DETECTION SYSTEM FOR TANK TRUCKS
First Claim
1. In a fuel delivery system of a transport truck having a fuel storage compartment, an overfill sensor probe for terminating a permit signal to cease the refueling of the compartment comprising:
- a housing having a probe tube extending therefrom and adapted to be secured to an upper portion of said compartment with said probe tube extending downwardly into said compartment and presenting a lower end for receiving fuel therein when the fuel rises above a predetermined level,said probe tube having a level sensor therein disposed within said lower end above said predetermined level and responsive to a maximum permitted level of fuel in said compartment for producing an output signal, anda control responsive to said output signal for terminating said permit signal to thereby cease the refueling of the compartment.
5 Assignments
0 Petitions
Accused Products
Abstract
An overfill probe is utilized in each compartment of a multi-compartment transport tanker and has a depending sensing tube for detecting liquid overfill conditions. An overfill detector is within the bottom end of the probe tube and is thus protected from damage. Internal damage to the probe and malfunction of the system also precluded by connecting the exposed cap of the probe to the detector by a longitudinally extensible, stretchable cable extending through the tube to the detector, or a circuit board may be retained within the depending tube. Additionally, a thermistor socket and an optic socket are provided which are part of the overfill protection system, each having contact connections that may be readily replaced when worn without removing or replacing the wiring within the socket assembly.
-
Citations
14 Claims
-
1. In a fuel delivery system of a transport truck having a fuel storage compartment, an overfill sensor probe for terminating a permit signal to cease the refueling of the compartment comprising:
-
a housing having a probe tube extending therefrom and adapted to be secured to an upper portion of said compartment with said probe tube extending downwardly into said compartment and presenting a lower end for receiving fuel therein when the fuel rises above a predetermined level, said probe tube having a level sensor therein disposed within said lower end above said predetermined level and responsive to a maximum permitted level of fuel in said compartment for producing an output signal, and a control responsive to said output signal for terminating said permit signal to thereby cease the refueling of the compartment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. In an overfill detection system for fuel loading:
-
a socket for receiving a plug secured to a cable extending from a control monitor, said socket presenting a face having a standoff therein and a contact screw threaded into said standoff, said contact screw presenting a head thereof having a pair of spaced recesses in said head for receiving a tool presenting a corresponding pair of male prongs, whereby a worn screw may be replaced without replacing the associated standoff. - View Dependent Claims (13, 14)
-
Specification