Abstract:
A coupling comprising a first body member and a second body member. The first and second body members are operative to releasably connect together. The first and second body members define a fluid flow path therein when the first and second body members are connected together. The first and second body members are operative to disconnect from one another in response to a predetermined tensile force. At least one valve member is disposed within at least one of the first and second body members and is movable from an open position to a closed position with respect to the fluid flow path upon disconnection of the first body member from the second body member. A sensor is disposed within one of the first and second body members and is operative to sense whether the first and second body members are connected together.
Abstract:
A breakaway assembly including a first connector and a second connector that is releasably coupleable to the first connector. The assembly is movable between a first configuration in which the first and second connectors are coupled and together define a fluid path through which fluid is flowable, and a second configuration in which the first and second connectors are axially separated. The assembly is configured to move from the first configuration to the second configuration when a sufficient separation force is applied to the assembly, and to be moved from the second configuration to the first configuration when a sufficient connecting force is applied to the assembly. The assembly includes a closure valve positioned in one of the first or second connectors, wherein the closure valve is configured to be in an open position when the assembly is in the first configuration to allow fluid to flow therethrough, and to be in a closed position when the assembly is in the second configuration to generally block the flow of fluid therethrough. The assembly further includes a bleed valve configured to allow at least some fluid trapped by the closure valve to escape to reduce a pressure of the fluid trapped by the closure valve.
Abstract:
The invention relates to an arrangement for controlling filling of a tank. The arrangement comprises a sensor for measuring the level of liquid in the tank and a filling nozzle having an entrance for receiving a filling handle and filling the tank. The filling nozzle is provided with a controllable magnet, and the magnet is arranged to be activated or deactivated based on measurements performed by the level sensor. The invention also relates to a method and a computer program for controlling filling of the tank.
Abstract:
Gegenstand der Erfindung ist eine Abreißkupplung für eine Flüssigkeitsleitung mit einem ersten und einem zweiten Kupplungsteil (3, 4), die jeweils einen Flüssigkeitsanschluss aufweisen und die durch eine definierte Kraft in Axialrichtung der Kupplung und/oder ein quer zur Axialrichtung wirkendes Kippmoment trennbar sind. Erfindungsgemäß ist vorgesehen, dass eine Verdrehsicherung (12) vorgesehen ist, die im Betrieb der Kupplung ein Verdrehen von erstem und zweitem Kupplungsteil (4, 3) gegeneinander verhindert.
Abstract:
A leak detection and prevention system adapted to continuously monitor the spaces of a double wall hydrocarbon fuel handling system comprising storage tanks, product lines, vapor recovery lines, tank vent lines, etc. The system establishes and monitors a resident gas-pressure within the interstitial space to monitor the integrity of the primary and secondary containment. Change in resident gas-pressure in excess of a calibrated vacuum flow rate or the presence of liquid in any monitored space initiates an alarm. Once an alarm is signaled, the product delivery system is shut down and an audio-visual alarm is activated in close proximity to operating personnel. An onsite service call by qualified personnel is required to return the product handling system back into service. A qualified service technician connects to a communication port on the system control module to evaluate the cause of the failure. The system utilizes vacuum pressure to monitor for containment breaches. Furthermore, the system utilizes a Bernoulli-based device to produce the monitoring vacuum.
Abstract:
An automatically operating shut-off valve has a valve body (12) with a weakened zone (15) about which the body will break, in the event the valve is subjected to a shock load. A valve seat (25) is formed within the body (12) and a valve member (29) is pivoted to move between an open position and a closed position, against the valve seat. The valve member is spring-urged to its closed position but is held in its open position by a crank (34) having a pin (35) bearing on a brittle glass rod (33). The valve will close whenever the rod (33) breaks, even if the shock load is only sufficient to crack the valve body, about the weakened zone.
Abstract:
A fuel dispenser includes a fuel nozzle configured to be connected to a vehicle fuel system, fuel piping configured to transfer fuel from at least one fuel storage tank associated with the fuel dispenser through the fuel nozzle into the vehicle fuel system, and a fraud detection valve apparatus. The fraud detection valve apparatus includes a cutoff valve configured to selectively prevent flow of fuel, a flow sensor configured to sense a flow of fuel, and processing circuity. The processing circuitry is configured to receive an indication of flow of fuel through the fuel flow control valve apparatus, determine an authorization status, and in response to a determination of no authorization during flow, cause the cutoff valve apparatus to close.
Abstract:
Various exemplary devices and methods for heating fluid dispensers, hoses (100), and nozzles (102) are provided. In general, the devices and methods for heating fluid dispensers, hoses (100), and nozzles (102) can be configured to heat fluid dispensable by a user into a fuel tank or other type of container. In some embodiments, a fuel dispensing device can include a first passageway (122) configured to pass fluid therethrough and can include a second passageway (124) fluidically isolated from the first passageway (122) and having a heating element (142) disposed therein. The heating element (142) can be configured to heat the fluid passing through the first passageway (122). The first and second passageways can extend through at least a distal portion of a hose (100) of the fluid dispensing device and through at least a proximal portion of a nozzle (102) of the fluid dispensing device that has a proximal end attached to a distal end of the hose (100).
Abstract:
An overfill prevention system for preventing the overfilling of tanks when filling up large tanks from a fuel distribution truck by monitoring and automatically controlling the filling process by use of a power take off switch assembly that is connected electronically to a secondary overfill prevention system that is also connected to a signal probe located in the tank that is being filled. Fuel contacts the signal probe, which sends a communicator signal from the signal probe to a secondary overfill prevention system. Once the looping electrical current no longer returns to the power take off switch assembly, an indicator light turns off and a pneumatic switch is flipped, which automatically stops the flow of air from the distribution truck's air tank to the power take off that drives a pump that is controlling the flow of fuel.