Abstract: Systems and methods for a vent interlock system to ensure vent cover closure prior to operation of a transportation vehicle. An embodiment of a system may include an interlock bar. The interlock bar may, in a lowered position, prevent a hydraulic valve handle of a hydraulic pump assembly from moving from an open position to a closed position, the hydraulic valve handle in the closed position to allow a vent cover of the trailer to be opened. The system may include a plunger valve connected to brakes of the transportation vehicle to lock the brakes of the transportation vehicle to prevent operation of the transportation vehicle when the interlock bar is raised. The system may include a spring operated latch attached to the transportation vehicle to hold the interlock bar in the lowered position via a notch or aperture in the interlock bar.

Abstract: A fuel system includes a fuel line configured to allow a fuel to flow therethrough and a fluoroscopy device attached to the fuel line such that the fluoroscopy device can input excitation radiation into the fuel line and receive fluorescent radiation emitted from the fuel in the fuel line.

Abstract: A tank container for bulk storage of liquid materials is provided with with remote operated valves. The tank container comprises a storage vessel for bulk storage of liquid materials and having a height of about eight feet. The storage vessel includes an outlet valve proximate a bottom of the vessel, a fill valve at a top of the vessel, and a vent valve at the top of the vessel. A parallelepiped frame surrounds and is secured to the storage vessel for stacking and transporting of the tank container. A fill line includes an outlet connected to the fill valve and extending downwardly within the frame and an inlet proximate the bottom of the frame. A fill valve actuator is mounted proximate the bottom of the storage vessel mechanically linked with the fill valve for operating the fill valve remote from the top of the storage vessel.

Abstract: A fuel supply system for an aircraft is provided for delivering in use fuel from a fuel tank to an aircraft powerplant. The in use fuel flows along a fuel flow passage from the fuel tank to the powerplant. A downstream pump is associated with the powerplant and configured to draw fluid along the fuel flow path so as to supply it to the powerplant in use. An upstream pump is disposed in or associated with the fuel tank and operable to pump fluid along the fuel flow passage. A pressure sensor is configured to monitor a pressure at an inlet to the downstream pump. A fuel system controller is responsive to the pressure sensor and configured to control the upstream pump so as to maintain the pressure at the inlet to the downstream pump at or above a predetermined threshold pressure.

Abstract: An assembly for recycling a solvent from a contaminated solvent solution includes a reservoir module including a mounted reservoir including an interior volume and a removable lid. The lid including a portion that extends into the interior volume and an access port disposed in the portion. A back edge of a bottom wall of the reservoir is disposed above a front edge of the bottom wall of the reservoir and a front portion of a side wall of the reservoir is disposed non-vertical and substantially normal to the bottom wall of the reservoir adjacent the front edge of the bottom wall.

Abstract: The fuel pumping system for delivering fuel to an engine includes a fuel transfer circuit for directing fuel from a fuel supply tank to the engine, a fuel boost pump, a main fuel pump and an accumulator device positioned along the transfer circuit between the boost pump and the engine for accumulating fuel and vapor so as to provide a reserve supply of fuel to the engine while minimizing the amount of undissolved vapor delivered to the engine. The system includes a return passage communicating, at one end, with the accumulator and at an opposite end with the fuel transfer circuit upstream of the boost pump for directing fuel and vapor from the accumulator into the transfer circuit.

Abstract: The invention is directed to a carburetor arrangement for an internal combustion engine of a working tool such as a portable hand-held chain saw, a cutoff machine or the like and includes a tank from which the fuel is conducted to the main nozzle of a carburetor via an inlet valve of the carburetor. A tank pressure blocking valve is mounted in the fuel feed line between the tank and the nozzle. The valve body of the blocking valve is pressed tightly against its valve seat in the direction of fuel flow and pressure drop when the engine is at standstill. During starting and running of the engine, the valve body is lifted from its seat by the underpressure condition caused by the engine and is moved in a direction opposite to an overpressure in the tank and against the flow of fuel.

Abstract: A tank for volatile fluid is fitted with a diaphragm vent valve as an integral portion of a system in which both emission control regulations and safety regulations are met.Vapors are recovered in this system but more importantly, the tank such as the one on a tank truck, cannot be filled through a bottom loading valve normally provided near the bottom of the tank, unless the vent valve is open. The vent valve includes a disc which, when the vent valve is closed, sealingly engages the interior upper surface of the tank, and when opened, is pushed away from the interior upper surface. This design provides for a low exterior profile of the valve body, and a valve operable with relatively low air pressure.

Abstract: Two forms of device are described for preventing unintentional removal of the contents of mobile tanks before unlocking the vent caps thereof. In one form, a guard unit is provided which is movable between positions permitting or interfering with attachment of a drain conduit to the drain opening. A guard unlocking linkage is provided which includes portions movable between first and second positions respectively, with the vent opening cover being required to be opened before the unlocking linkage can be moved to the second position. When the cover is open and the unlocking linkage can be moved, the guard unit is moved to the position permitting attachment of the drain conduit.In another form, a locking plate is provided on the vent cover and a notch on the plate registers with a locking device connected to a first hydraulic piston and cylinder assembly.

Abstract: A dishwasher has a cabinet which defines a cavity, an access opening into the cavity, and a door for said opening. A washing fluid reservoir in the cabinet beneath the cavity holds washing fluid for the dishwasher. A drain for the washing fluid reservoir is manually operable between open and closed conditions when the door is open. The drain is also interlocked with a door on the cabinet which covers the access opening such that when the door is closed, the drain, if previously open, is automatically moved to its closed condition to ready the reservoir for filling. Thus, attempting to fill the reservoir with the drain open will be effectively prevented.