A tool drive assembly including a flexible drive shaft and a guide. The flexible drive shaft includes a proximal end structured to engage a driver for rotating the flexible drive shaft, and a distal end opposite the proximal end. The guide includes a handle, a shaft extending from the handle, and a hub assembly at a distal end of the shaft. The hub assembly includes a housing, and a hub rotatably mounted within the housing. The hub includes an input connection structured to attach to the distal end of the flexible drive shaft, and an output connection structured to attach to a working tool. The tool drive assembly enables easy manipulation and driving of a working tool to achieve optimum positioning and effectiveness of the working tool.

The figure system includes: a plurality of drive units each including an actuator that generates rotative force; and a figure including a plurality of movable mechanisms and a plurality of flexible wires. The movable mechanisms each include a movable body that operates by the rotative force and an operation amount detector that detects an amount of operation of the movable body. The flexible wires include their respective first ends that are coupled to the movable bodies. The rotative force generated by one of the actuators is transmitted to corresponding one of the movable bodies through one of the flexible wires.

The figure system includes: a plurality of drive units each including an actuator that generates rotative force; and a figure including a plurality of movable mechanisms and a plurality of flexible wires. The movable mechanisms each include a movable body that operates by the rotative force and an operation amount detector that detects an amount of operation of the movable body. The flexible wires include their respective first ends that are coupled to the movable bodies. The rotative force generated by one of the actuators is transmitted to corresponding one of the movable bodies through one of the flexible wires.

A blood pump assembly comprising a pump casing, at least a portion of which is disposed around one or more blades coupled to a drive cable, and a motor configured to drive the drive cable and the one or more blades rotationally, wherein the drive cable is configured to undergo axial displacement with respect to the pump casing during rotation.

A blood pump assembly comprising a pump casing, at least a portion of which is disposed around one or more blades coupled to a drive cable, and a motor configured to drive the drive cable and the one or more blades rotationally, wherein the drive cable is configured to undergo axial displacement with respect to the pump casing during rotation.

Drain cleaners are described that include rotatable drums which retain drain cleaning cable. Mounted on the rotatable drum is a motor and optional gearbox for imparting rotation to the drain cleaning cable. The drain cleaners can also include a cable clamp mounted on the rotatable drum. The drain cleaners are configured such that the rotatable drum is free of positional preference regardless of orientation of the drain cleaner.

Drain cleaners are described that include rotatable drums which retain drain cleaning cable. Mounted on the rotatable drum is a motor and optional gearbox for imparting rotation to the drain cleaning cable. The drain cleaners can also include a cable clamp mounted on the rotatable drum. The drain cleaners are configured such that the rotatable drum is free of positional preference regardless of orientation of the drain cleaner.

A tool called a spinner is interposed between a rotary driver and a flexible shaft that is being rotated and moved axially when a duct or chimney is being cleaned by a whip head at the end of the shaft. A tubular shape collar has a home position on the body of the spinner. Grasping and holding the collar at its home position, while the driver rotates, helps steady the driver as the body moves within the collar. To dampen oscillation of the shaft, the collar is moved lengthwise from the body, and along the shaft to a working position where it is held manually. The collar is retained on the body by frictional means. A user can overcome the retaining force and, without using a second tool, slide the collar off the body and along the shaft to the working position, while the spinner is rotating or stationary.

A casing for a shaft assembly, a shaft assembly, a method of forming a casing, and a drive assembly. The casing may generally include a liner defining a central passage and having a body and an outwardly-extending leg (e.g., extending circumferentially about and/or axially along the body), and a cover extending circumferentially about and axially along the liner.

A casing for a shaft assembly, a shaft assembly, a method of forming a casing, and a drive assembly. The casing may generally include a liner defining a central passage and having a body and an outwardly-extending leg (e.g., extending circumferentially about and/or axially along the body), and a cover extending circumferentially about and axially along the liner.