A Gear change and gear change biasing mechanism for use in an automatic swimming pool cleaner in slightly off-set paths to cover a mostly square area, a fourth larger turn 46 will steer cleaner to a different area of pool indicated by arrow 47 where the pattern will repeat itself.

The present invention relates to a linear electro-mechanical actuator for transferring a rotational motion to a linear motion. The actuator provides a piston having an outer load-carrying surface and being at least partly arranged inside a housing. The actuator further provides a transmission module adapted to transfer a rotational motion generated by a motor to a linear motion of the piston. The actuator includes a separating member and a lubricating member having a porous polymeric matrix and a lubricating material, the separating member and the load-carrying member being arranged adjacent to each other. Thereby, the actuator allows for lubrication of at least a portion of the outer load-carrying surface of the piston by the lubricating material upon movement of the piston. For instance, the linear electro-mechanical actuator may not require, or may at least minimize, the need of relubrication.

A linear drive apparatus is provided. The linear drive apparatus may include an outer tube, a sealing end cap provided at the end of the outer tube, a screw provided in the outer tube, a drive nut provided on the screw in a threaded fit, an extension rod provided between the outer tube and the screw, a sealing assembly provided between the extension rod and the sealing end cap, and a waterproof and oil-proof ventilation stopper provided on the outer tube. One end of the screw may be connected to a drive mechanism. One end of the extension rod may be connected to the drive nut. The other end of the extension rod may pass through the sealing end cap.

An assembly comprising: a first electric motor coupled to an input shaft of a transmission via a first clutch; a second electric motor directly coupled to the input shaft of the transmission; a power take-off unit coupled to the first clutch; a first housing comprising the transmission; and a second housing comprising the power take-off unit and an power take-off assembly the power take-off unit is coupled to, where the second housing is fastened to the first housing.

An assembly comprising: a first electric motor coupled to an input shaft of a transmission via a first clutch; a second electric motor directly coupled to the input shaft of the transmission; a power take-off unit coupled to the first clutch; a first housing comprising the transmission; and a second housing comprising the power take-off unit and an power take-off assembly the power take-off unit is coupled to, where the second housing is fastened to the first housing.

An electronic vehicle pedal activation system for eliminating the need to have more than one person when working on vehicle where using a pedal of the vehicle is required. The electronic vehicle pedal activation system includes a support assembly including a shaft having a length and adapted to be removable and in contactable relationship with a floor board; a pedal activation assembly in communication with the support assembly for moving a pedal of a vehicle; and a control assembly in operable communication with the pedal activation assembly.

A linear actuator comprises a motor having an output shaft. A casing of the motor has an inner cavity with a counterbore seat surface. A threaded shaft is within the inner cavity. A bearing is received in the counterbore seat surface. A coupling assembly has a first coupling component receiving the rotational output from the motor, and a second coupling component coupled to the first coupling component for transmission of the rotational output to the threaded shaft. A sliding tube is sliding arrangement with the casing for moving in translation relative to the casing. A traveling nut is in the sliding tube for moving therewith for converting a rotational motion of the threaded shaft into a translation of the sliding tube. An integral driven assembly unit comprising the bearing, the threaded shaft, the traveling nut and the sliding tube interconnected to one another so as to be removable by pulling out the integral driven assembly as a whole from the inner cavity of the casing via the proximal end.

An actuator includes a housing assembly, an actuator shaft, an actuation member, and an anti-rotation rod. The actuator shaft is rotationally mounted in the housing assembly, is adapted to receive a drive torque, and is configured, upon receipt of the drive torque, to rotate. The actuation member is mounted on the actuator shaft, and is configured to translate in response to rotation of the actuator shaft. The anti-rotation rod is coupled to the actuator housing and extends therefrom. The anti-rotation is rod configured to at least selectively engage, and thereby prevent rotation of, the actuation member.

A multiple speed transmission includes an input member, an output member, a plurality of planetary gearsets, a plurality of interconnecting members and a plurality of torque-transmitting mechanisms. The plurality of planetary gear sets includes first, second and third members. The input member is continuously interconnected with at least one member of one of the plurality of planetary gear sets, and the output member is continuously interconnected with another member of one of the plurality of planetary gear sets. At least eight forward speeds and one reverse speed are achieved by the selective engagement of the five torque-transmitting mechanisms.

A linear actuator includes a telescoping sleeve (100). The telescoping sleeve (100) includes an inner sleeve (110), an intermediate sleeve (120) sheathing the inner sleeve (110) and an outer sleeve (130) sheathing the intermediate sleeve (120). A base (200) connected to the intermediate sleeve (120); a motor (300) arranged on the base (200); a reduction worm gear (400) pivoted on the base (200) and driven by the motor; a rotor worm (500) pivoted on the base (200) and engaged with the reduction worm gear (400); a rotor worm gear (800) pivoted on the base (200); a stator worm (700) inserted in the rotor worm gear (800) and connected to the outer sleeve (130); and a stator nut (900) connected to the inner sleeve (110) and engaged with the rotor worm (500) are arranged in the telescoping sleeve (100).