45results about How to "Improve skid" patented technology

The invention discloses a spanner with a hexagonal ball end. A ball end is formed at one end of the spanner, can drive a to-be-driven member, is provided with a virtual working portion which can contact with the to-be-driven member, and comprises a first cambered surface. At least one concave portion and at least one meshed portion are formed on the first cambered surface; the concave portion is adjacent to the meshed portion which is in the same plane with the virtual working portion, and presents a concave shape relative to the virtual working portion; and the meshed portion can increase the friction between the ball end and the to-be-driven member.

The invention relates to a kinetic energy accumulator, comprising a plurality of rotatably mounted accumulator members (100, 198) positioned adjacent one another, an input drive mechanism (116) arranged to impart rotational drive to a first of the accumulator members, and velocity responsive coupling members (106, 192) arranged to provide for magnetic coupling of successive ones of the accumulator members when respective ones of the accumulator members are caused successively to rotate with an angular velocity equal to, or greater than, a predetermined velocity. The accumulator can store kinetic energy and thereby act as source of rotational drive. Hence, there is also provided a kinetic energy transfer system, comprising the kinetic energy accumulator (118), an energy transmitter mechanism arranged to apply drive from a kinetic energy source to the input drive mechanism (116) of the energy accumulator; and a load device coupled to, and arranged to be driven by, the energy accumulator when each of the accumulator members is rotating with an angular velocity equal to, or greater than, the predetermined velocity. The load device can be an electric generator or other device.

A single-layer sock preferably formed of interconnected pieces with at least one of the pieces strategically placed for stabilizing a foot within a shoe and at least one piece comprised of gripping material.

A control system is provided for controlling movements of an end effector connected to a clutch output of at least one magnetorheological (MR) fluid clutch apparatus. A clutch driver is configured to drive the at least one MR fluid clutch apparatus between a controlled slippage mode, in which slippage between a clutch input and the clutch output of the MR fluid clutch apparatus varies, and a lock mode, in which said slippage between the clutch input and the clutch output is maintained below a given threshold, the clutch output transmitting movement to the end effector. A motor driver is configured to control a motor output of at least one motor, the motor output coupled to the clutch input. A mode selector module is configured to receive signals representative of at least one movement parameter of the end effector, the mode selector module selecting a mode between the controlled slippage mode and the lock mode of the clutch driver based on the signals, and switching the selected mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on at least one of the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements. A method for controlling movements of an end effector connected to the MR fluid clutch apparatus is also provided.