An electrified fire fighting vehicle includes a chassis, a cab coupled to the chassis, a body coupled to the chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a water tank supported by the chassis, an energy storage system coupled to the chassis, a water pump supported by the chassis, and an electromagnetic device electrically coupled to the energy storage system. The electromagnetic device is coupled to the water pump and at least one of the front axle or the rear axle. The electromagnetic device is configured to receive stored energy from the energy storage system and provide a mechanical output to selectively drive the water pump and the at least one of the front axle or the rear axle.

A deicing fluid recovery system includes a vehicle movable adjacent to an aircraft and including a holding tank configured to store deicing fluid and a receptacle configured to capture deicing fluid from the aircraft during a deicing procedure. During the deicing procedure, deicing fluid runoff from a surface of the aircraft may be captured into the receptacle and transferred from the receptacle into the holding tank. The deicing fluid runoff may be captured into the receptacle before the deicing fluid runoff contacts ground.

A fire fighting vehicle includes a chassis, a front axle, a rear axle, a powertrain, an accessory drive, and a controller. The powertrain includes an engine, a battery system, and an electromechanical transmission coupled to the battery system, the engine, and at least one of the front axle or the rear axle. The accessory drive is positioned to receive a mechanical input from the engine and the electromechanical transmission. The controller is configured to selectively operate the powertrain in a plurality of operational modes including a standby mode and a hybrid mode. According to the standby mode, the controller is configured to operate the electromechanical transmission using stored energy stored in the battery system to drive the accessory drive with the engine off. According to the hybrid mode, the controller is configured to operate both the engine and the electromechanical transmission.

A tank and a method of carrying a load and discharging a load therefrom. The tank includes a body having a first wall that bounds and defines a first compartment for carrying a load therein and a second wall spaced outwardly from at least a portion of the first wall; wherein a second compartment is defined between the first wall and the second wall. An air piping system is selectively actuated to place the first compartment and the second compartment under substantially similar or substantially equal air pressure. In one example the air piping system pumps air into the first compartment and the second compartment. In another example the air piping system evacuates air from the first and second compartments.

A trailer-mounted pumping system includes a flatbed trailer having a generally flat deck surface, a pump, a batch controller, and a metering device in electronic communication with the batch controller, wherein the pump is configured to move a liquid from at least one tote supported by the generally flat deck surface to a location off-board the flatbed trailer, and the batch controller is configured to measure a volume of the liquid via the metering device. The pump, the metering device, and/or the batch controller may be disposed beneath the generally flat deck surface.

Apparatuses, systems, and methods are disclosed for a multi-compartment tanker. An apparatus includes a first liquid storage tank and a second liquid storage tank. The apparatus includes one or more valves that connect the first liquid storage tank to the second liquid storage tank. The apparatus includes a vacuum pump that is connected to the first and second liquid storage tanks and operable for facilitating transfer of at least a portion of a liquid in the first liquid storage tank to the second storage tank in response to a valve connecting the first and second storage tanks being opened.

A towable fluid storage tank trailer comprising a cylindrical horizontal storage tank with a cylindrical walled outer structure with ends creating an inner cavity with an external fluid connection and access point to the inner cavity, a tank support structure substantially surrounding and engaging the underside of the tank and the tank disposed within a support structure, tank coupling members engaging the topside and securing the tank in a desired position on the trailer assembly, and towable trailer assembly with skids, longitudinal retention members, lateral retention members, a kingpin for engaging the tow vehicle, and a rear wheel axle assembly whereby the storage tank is horizontally disposed within the tank support structure and is removably coupled to the support structure that is rigidly affixed to the towable trailer assembly where various types of caustic and non-caustic fluids are filled and transported.

A vacuum tank semi-trailer having a horizontal tank with front and rear tank heads. A front cantilevered frame is welded to the front tank head and has a fifth wheel hitch and a pair of landing legs fixed thereto. A rear cantilevered frame is welded to the rear tank head, and has an axle assembly sprung therefrom. A lower center of gravity is realized by keeping the front a rear frames smaller than the diameter of the tank. A fill pipe having an upwardly sloped portion to clear the axle assembly is coupled to the tank and presents a fill connection at the rear of the rear frame in a protected manner.

A dry bulk tank and a method of carrying a load and discharging a load therefrom. The dry bulk tank includes a tank assembly having a first wall that bounds and defines a first compartment for carrying a load therein and a second wall spaced outwardly from at least a portion of the first wall; wherein a second compartment is defined between the first wall and the second wall. The tank assembly includes an air piping system that is selectively actuated to place the first compartment and the second compartment under a substantially similar or substantially equal air pressure. In one example the air piping system pumps air into the first compartment and the second compartment. In another example the air piping system evacuates air from the first and second compartments.

A tank and a method of carrying a load and discharging a load therefrom. The tank includes a tank having a first wall that bounds and defines a first compartment for carrying a load therein and a second wall spaced outwardly from at least a portion of the first wall; wherein a second compartment is defined between the first wall and the second wall. The tank assembly includes an air piping system that is selectively actuated to place the first compartment and the second compartment under equal air pressure. In one example the air piping system pumps air into the first compartment and the second compartment. In another example the air piping system evacuates air from the first and second compartments.