The improved gearbox mechanism of the present invention includes a plurality of cam-actuated simplified gear block assemblies, which transfer power from a power shaft to a secondary or output gear element. Each gear block assembly includes a gear block having a surface that periodically interfaces with a secondary or output gear element. In a preferred embodiment the interface surface comprises a plurality of projections or teeth which correspond to complementary projections or gear teeth on the output gear element. Each gear block assembly further includes a gear block, a torque lever arm, cam followers and/or a socket, which connect or link the gear block to a cam assembly, which in turn is connected to a power source. The cam assembly includes about its circumference a unique pathway or groove for each linkage assembly of a particular gear block assembly so that the movement of the gear block may be controlled in two dimensions in accordance with a certain design parameter.

The improved gearbox mechanism of the present invention includes a plurality of cam-actuated gear block assemblies, which transfer power from a power shaft to a secondary or output gear element. Each gear block assembly includes a gear block having a surface that periodically interfaces with a secondary or output gear element. In a preferred embodiment the interface surface comprises a plurality of projections or teeth which correspond to complementary holes, projections or gear teeth on the output gear element. Each gear or torque block assembly further includes pivot assemblies, which connect or link the torque block to a cam assembly, which in turn is connected to a power source. The cam assembly comprises a set of corresponding cam elements arranged in a tandem configuration and having a unique circuitous pathway or groove formed therein so that the movement of the torque block may be controlled in three dimensions in accordance with a certain design parameter. In a preferred embodiment, a portion of the pathway is generally spiral in shape.

The improved gearbox mechanism of the present invention includes a plurality of cam-actuated simplified gear block assemblies, which transfer power from a power shaft to a secondary or output gear element. Each gear block assembly includes a gear block having a surface that periodically interfaces with a secondary or output gear element. In a preferred embodiment the interface surface comprises a plurality of projections or teeth which correspond to complementary projections or gear teeth on the output gear element. Each gear block assembly further includes a gear block, a torque lever arm, cam followers and/or a socket, which connect or link the gear block to a cam assembly, which in turn is connected to a power source. The cam assembly includes about its circumference a unique pathway or groove for each linkage assembly of a particular gear block assembly so that the movement of the gear block may be controlled in two dimensions in accordance with a certain design parameter.

Embodiments provide a pool cleaner with a housing, a first drive wheel positioned along a first side of the housing, and a second drive wheel positioned along a second side of the housing. The pool cleaner also includes a steering system engaged with the first drive wheel and the second drive wheel. The steering system includes a rotating cam with a first cam profile and a second cam profile different from the first cam profile. The steering system drives the housing in a cycle of forward and turn movements by rotating the first drive wheel based on the first cam profile and rotating the second drive wheel based on the second cam profile.

The improved motorized gearbox mechanism of the present invention includes a plurality of cam-actuated gear block assemblies, which transfer power from an integral rotor and stator assembly contained in a cam/rotor assembly, to a secondary or output gear element. Each gear block assembly includes a gear block having a surface that periodically interfaces with a secondary or output gear element. When energized, the stator assembly interacts with the rotor assembly inducing the cam/rotor assembly to rotate about its central axis, thereby driving the output gear element via the plurality of cam-actuated gear block assemblies. The motorized gearbox mechanism may be powered electrically, hydraulically, pneumatically or by steam, or any conventional power source that can be adapted to use an integral stator/rotor assembly configured in the cam assembly body to generate rotative power in the cam/rotor assembly.

An axial, through-shaft actuator that is particularly useful for a variably actuatable water pump having a pump chamber, with an inlet and an outlet is provided. A hollow drive shaft extends into the pump chamber. A drive wheel is connected to the drive shaft. A variable flow impeller assembly having an impeller part connected to the drive shaft and a cover part, which is axially movable relative to the impeller part is located in the pump chamber and is movable from a first, pumping position to a second position to prevent pumping. A cup actuator assembly is axially movable on the hollow drive shaft, and includes an actuator plate and a pin extending through the hollow drive shaft that connects the axially movable impeller part and the actuator plate. An actuator displaces the actuator plate in the axial direction of the drive shaft to move the axially movable part.

The improved motorized gearbox mechanism of the present invention includes a plurality of cam-actuated gear block assemblies, which transfer power from an integral rotor and stator assembly contained in a cam/rotor assembly, to a secondary or output gear element. Each gear block assembly includes a gear block having a surface that periodically interfaces with a secondary or output gear element. When energized, the stator assembly interacts with the rotor assembly inducing the cam/rotor assembly to rotate about its central axis, thereby driving the output gear element via the plurality of cam-actuated gear block assemblies. The motorized gearbox mechanism may be powered electrically, hydraulically, pneumatically or by steam, or any conventional power source that can be adapted to use an integral stator/rotor assembly configured in the cam assembly body to generate rotative power in the cam/rotor assembly.

An apparatus for assembling a composite arrangement including a plurality of functional elements each having an aperture for a shaft, in a predetermined angular position on the shaft, may include a plurality of retaining devices each intended for accommodating a functional element. The retaining devices may be arranged vertically one above another such that the apertures of the functional elements may lie on a vertical line. The apparatus may also include a vertically movable guide slide for the shaft so that a joining of the shaft with the functional elements may take place in a vertical direction. The apparatus may also include a heating device by which at least two functional elements may be heated simultaneously. The apparatus may further include a gripping device by which at least two functional elements which are to be joined may be removed together from the heating device and introduced into the retaining devices.

Three controls, three variable gear assemblies, an optional hatch or variable propeller pitch, and a variable overlap generator (VO generator), as well as one or more commutator and brushless free direct current generators may be used independently and together to provide constant frequency and voltage output power and to increase the amount of output power generated with the same input water flow or wind speed in a plurality of embodiments useful in wind power generation and water renewable energy generators for any of tidal and ocean current or wave conditions. Two Transgear assemblies side-by-side and sharing the same central shaft may comprise a constant speed motor control, produce required constant frequency and voltage and be reduced in part count and complexity. The variable overlap generator of a marine hydrokinetic or wind power generator may be used as a low torque generator, a high power-rated generator or a control in these applications and may generate more electric power than a conventional fixed power generator (the rotor axially aligned to overlap the stator in a conventional manner) over a wider input range. An electromotive force (EMF) embodiment generates alternating current at constant frequency and voltage in varying wind and water speed conditions.

A motor-driven machine tool has a drive motor, the motor shaft of which is driven in rotation, with a tool drive shaft, which is driven in rotation or in oscillation about its longitudinal axis, and with a coupling drive for converting the rotational movement of the motor shaft into a driving movement of the tool drive shaft. Furthermore, a coupling is provided, which compensates an angular offset or change in position between the motor shaft and tool drive shaft which deviates from an axially parallel or right-angled arrangement of the two shafts.