Abstract: A bellows formed from an elastic material with a cylinder jacket as a basic shape, a cylinder axis corresponding to a working direction, and a jacket surface shaped into a plurality of folds transversely with respect to the working direction. Each fold has a first fold diameter perpendicular to the working direction and spaced apart therefrom in the working direction, a second fold diameter differing from the first fold diameter and spaced apart therefrom in the working direction, against the first fold diameter, and a fold wall formed integrally therewith. Consecutive folds in the working direction each have the same inner fold diameter, but alternating different outer fold diameters.

Abstract: A fluid driven rotary prime mover assembly including a turbine, a first generator, a second generator and a speed increaser is provided. The gear assembly includes a first epicyclic and a second epicyclic. The first epicyclic includes a first carrier rotationally connected to the turbine, a first sun rotationally connected to the first generator, a first annulus, and a first planet in meshing engagement with the first sun and the first annulus. The second epicyclic includes a second carrier rotationally grounded, a second sun rotationally connected to the second generator, a second annulus connected to the first annulus, and a second planet in meshing engagement with the second sun and the second annulus.

Abstract: A hoisting device including a cable drum, a first motor, a second motor and a gear assembly is provided. The gear assembly includes a first epicyclic and a second epicyclic. The first epicyclic includes a first carrier rotationally connected to the cable drum, a first sun rotationally connected to the first motor, a first annulus, and a first planet in meshing engagement with the first sun and the first annulus. The second epicyclic includes a second carrier rotationally grounded, a second sun rotationally connected to the second motor, a second annulus connected to the first annulus, and a second planet in meshing engagement with the second sun and the second annulus.

Abstract: A fluid driven rotary prime mover assembly including a turbine, a first generator, a second generator and a speed increaser is provided. The gear assembly includes a first epicyclic and a second epicyclic. The first epicyclic includes a first carrier rotationally connected to the turbine, a first sun rotationally connected to the first generator, a first annulus, and a first planet in meshing engagement with the first sun and the first annulus. The second epicyclic includes a second carrier rotationally grounded, a second sun rotationally connected to the second generator, a second annulus connected to the first annulus, and a second planet in meshing engagement with the second sun and the second annulus.

Abstract: A hoisting device including a cable drum, a first motor, a second motor and a gear assembly is provided. The gear assembly includes a first epicyclic and a second epicyclic. The first epicyclic includes a first carrier rotationally connected to the cable drum, a first sun rotationally connected to the first motor, a first annulus, and a first planet in meshing engagement with the first sun and the first annulus. The second epicyclic includes a second carrier rotationally grounded, a second sun rotationally connected to the second motor, a second annulus connected to the first annulus, and a second planet in meshing engagement with the second sun and the second annulus.

Abstract: An improved efficiency x-ray source comprised of a fluorescent x-ray tube and resonant high voltage power supply. The fluorescent x-ray tube is an arc discharge tube filled with a low-pressure vapor, xenon for example, that is excited by high-frequency, high-voltage pulses to produce x-rays. The power supply passes arcs through the tube that produce significantly more radiation per unit energy than equivalent conventional vacuum x-ray tubes. The power supply may be a high frequency resonant AC supply or it may be rectified to give resonant DC. The fluorescent tube is driven in cold cathode mode, avoiding a fragile filament. The arc gap may also be large or very small in order to serve as a broad beam source or point source.

Abstract: The present invention relates to a vacuum arc discharge power supply. The power supply may be a high frequency resonant AC supply or it may be rectified to give resonant DC. The power supply of the present invention may be used in x-ray production, vacuum arc deposition equipment, vacuum metal refining, ion implantation devices, or other applications that perform vacuum arc discharge.

Abstract: The present invention relates to a vacuum arc discharge power supply. The power supply may be a high frequency resonant AC supply or it may be rectified to give resonant DC. The power supply of the present invention may be used in x-ray production, vacuum arc deposition equipment, vacuum metal refining, ion implantation devices, or other applications that perform vacuum arc discharge.

Abstract: An improved efficiency x-ray source comprised of a fluorescent x-ray tube and resonant high voltage power supply. The fluorescent x-ray tube is an arc discharge tube filled with a low-pressure vapor, xenon for example, that is excited by high-frequency, high-voltage pulses to produce x-rays. The power supply passes arcs through the tube that produce significantly more radiation per unit energy than equivalent conventional vacuum x-ray tubes. The power supply may be a high frequency resonant AC supply or it may be rectified to give resonant DC. The fluorescent tube is driven in cold cathode mode, avoiding a fragile filament. The arc gap may also be large or very small in order to serve as a broad beam source or point source.