Abstract: Disclosed systems, methods, and products include a self-contained electroencephalogram (EEG) recording patch including a first electrode, a second electrode and where the first and second electrodes cooperate to measure a skin-electrode signal, a substrate containing circuitry for generating an EEG signal there-from, amplifying the EEG signal, digitizing the EEG signal, and retrievably storing the EGG signal in a programmatic fashion. The patch also comprises a power source and an enclosure that houses the substrate, the power source, and the first and second electrodes in a unitary package.

Abstract: A pneumatic closing apparatus suitable for metering grain or other material gravity discharged by twin pendulum hopper doors from a hopper trailer. The closing apparatus includes a bidirectional pneumatic cylinder that operates a linkage assembly controlling the doors and a torsion spring which damps the pneumatic cylinder so that it is possible to meter the grain or other material. The torsion spring also resisting opening of the pendulum doors if the pneumatic cylinder loses pressure.

Abstract: A dump body for mounting on a truck or trailer having a floor with a top surface and an underneath surface and a plurality of spaced apart longitudinal channels on the top surface with complementary ridges on the underneath surface extending to the rear edge of the floor. The floor being supported proximate its rear edge by an apron having a top surface that follows the contours of the underneath surface of the floor at its rear edge.