An integrated abrasive dispensing material system for a wheeled vehicle is provided. The system having a hopper for dispensing the abrasive material into a dispenser, and then out dispensing pipe at the bottom of the dispenser. The dispenser has a rotating brush roll actuated via a motor, the rotating brush roll having a plurality of bristled flaps extending radially from a cylinder positioned inside the hollow dispenser. The flaps ensure a constant and calculated flow of abrasive material. The flap also make contact with the interior perimeter of the dispenser keeping the abrasive material inside the dispenser in an environment that prevents moisture and cold air flow from entering the dispenser which could cause the abrasive material to form blocks that could jam the system.

A device for scattering grit in front of the wheels of a vehicle comprises a housing having a feed inlet for the grit, an outlet for the grit and a substantially cylindrical recess for receiving a brush roll which is rotatably mounted and driven about a substantially horizontal axis of rotation for the metered delivery of the grit from the feed inlet to the outlet. At least one wedge is arranged in the region of the feed inlet for the grit, in front of the brush roll and tangentially and displaceably with respect to the brush roll so that the size of the feed inlet can be adjusted.

A metering device is configured for fitting into a sand-spreading system of a rail vehicle. The metering device has a housing block, in which a sand path extends from a sand-feeding funnel into a vertical sand blow-out channel via a sand-mixing channel, which rises at an inclination from a sand-holding space to a sand deflection space. A pushing air tube is provided for producing an air flow that conveys spreading sand. The pushing air tube protrudes into the sand-mixing channel coaxially from the bottom. A nozzle insert is detachable inserted into an inflow channel, which leads into the sand deflection space from above. The nozzle insert is provided for producing an air jet directed downward into the sand blow-out channel. The amount of scattering sand that is discharged can be metered more precisely and the susceptibility of the metering device to wear is improved.

A device for improving the grip of a tire fitted to a mobile vehicle traveling on a road surface, this device being on board the mobile vehicle and comprising: means for detecting and characterizing the presence of water on the road surface in front of the mobile vehicle, means for processing information received from the detection and characterization means and for generating control instructions, and means for emitting a power laser beam directed toward a portion of road surface in front of a tire of the mobile vehicle, which means are designed to vaporize or sublimate the water present in front of the tire in response to control instructions. The device is used, in particular, for motor vehicles and aircraft.

A locomotive sanding system is described for conveying sand from a sand tower to a sand box mounted on a locomotive. The invention is designed to prevent personnel from being subjected to sand and sand dust during the sand box being filled with sand from the sand tower. The system includes a universal sealing nozzle which may be used with the locomotive sanding system or other devices. The universal sealing nozzle includes an expansion seal extending therearound which may be moved from a retracted position to an expanded position. When the nozzle is inserted into the fill pipe of the sand box, the expansion seal is expanded to sealably engage the inside surface of the fill pipe.

The invention relates to a screening element for screening and transporting grit material, for applying to a sanding device of a sanding apparatus for a vehicle. The screening element includes a plate element provided with a shaft-coupling mechanism, at least one through-opening, and at least one lug. The shaft-coupling mechanism is designed to couple the screening element to a shaft device of a rotary feeder of the sanding device. The through-opening is arranged in the plate element and is designed to guide grit material through the plate element. The lug extends transversely in relation to a main surface of the plate element, away from the plate element.

An integrated abrasive dispensing material system for a wheeled vehicle is provided. The system having a hopper for dispensing the abrasive material into a dispenser, and then out dispensing pipe at the bottom of the dispenser. The dispenser has a rotating brush roll actuated via a motor, the rotating brush roll having a plurality of bristled flaps extending radially from a cylinder positioned inside the hollow dispenser. The flaps ensure a constant and calculated flow of abrasive material. The flap also make contact with the interior perimeter of the dispenser keeping the abrasive material inside the dispenser in an environment that prevents moisture and cold air flow from entering the dispenser which could cause the abrasive material to form blocks that could jam the system.

Polymer compositions having improved electromagnetic (EMI) shielding properties under high temperature are disclosed. The polymer compositions comprise a thermoplastic polymer, stainless steel fiber, and optionally one or more of glass fiber, a conductive filler, a second polymer, and other additives. The disclosed compositions maintain heat resistance and other mechanical properties under high temperatures.

A method for controlling a device for metering granular material and a metering device for metering granular material comprises a feed for the granular material from a container into a metering chamber. A metering piston can be actuated by a control device such that a gap between the feed and the metering chamber is opened by a predefined first distance and a second distance which is greater than the first distance. At least one sensor is arranged in a delivery line leading away from the metering chamber and is connected to the control device so that the metering piston can be actuated for a predefined duration such that the gap between the feed for the granular material and the metering chamber can be opened by the second distance if a blockage of the granular material is detected by the at least one sensor, so that the blockage is dispersed.

A vehicle is disclosed for providing increased friction between the wheels of a vehicle and the ground. An example vehicle includes an anti-lock brake system, inertial sensor, and wheels. The vehicle also includes a computing system configured to deploy aggregate to an area proximate the wheels, responsive to determining that a vehicle traction value is below a first threshold. The computing system is also configured to, after deploying the aggregate, deploy a friction mat to an area proximate the wheels, responsive to determining that the vehicle traction value remains below a second threshold.