Abstract: A small amount of high viscosity sealant is injected under high pressure into pneumatic tire punctures. By eliminating the steps of wheel, tire and tube removal and reassembly, air leakage is permanently blocked in seconds reducing down time by two orders of magnitude.

Abstract: A dynamic method to accurately determine the mass of a vehicle which deforms on acceleration and is subject to low frequency noise is disclosed. Only the greater than zero hertz frequencies of the signals are processed. Both signals are squelched during periods of high jerk to reduce the error between true mass and apparent mass. For a single body or combination vehicle such as a semi-rig with a propulsive body of known mass a reference for matched or Wiener filtering is constructed from the noisy signals to filter low frequency noise. A towing vehicle with a fifth wheel mounted on a dedicated load sensing apparatus can, therefore, determine the weight of any semi-trailer towed on any terrain of any inclination and any changing inclination with the greatest precision in the shortest possible time.

Abstract: An external rotor gas turbine engine to provide direct high speed thrust or to provide rotational shaft work to power electrical generators or aircraft engine fans. To supply compressed air to the rotating inlet of the turbine or combustor, the dynamic compressor has an external rotor journaled onto an internal stator. The entire outside of the engine rotates allowing for a sealless high pressure rotating air source to the exoskeletal turbine. For the prime mover embodiment, the residual kinetic energy from the rotating nozzles may be recovered by an impulse turbine. For the high speed propulsion engine, the impulse turbine is replaces with stator vanes to redirect the momentum in an axial direction.