A tool for removing articles from a drain includes a rod that has a first end, a second end and a peripheral surface extending between the first and second ends. A hook is attached to and extends away from the first end of the rod. A magnet is attached to the second end of the rod.

Magnetic coupling devices are disclosed having magnetic field sensors. The magnetic coupling device may include degaussing coils wrapped about pole extension shoes of the magnetic coupling device.

A tool system including a housing fastened to a tool, the housing being formed of a non-magnetic material, a magnet module embedded in the housing, a pair of mounting grooves in the housing and located below the magnet module, a changer body provided on a manipulator, the changer body being formed a non-magnetic material, a metal bar mounted on the changer body, a pair of terminals provided at both ends of the metal bar, the pair of terminals being formed of magnetic material, the pair of terminals facing the magnet module, a fixing bar outside the housing, the fixing bar being formed of a magnetic material, and a pair of mounting pins extending vertically from both ends of the fixing bar, the pair of mounting pins being formed of magnetic materials, and the pair of mounting pins are inserted into the pair of mounting grooves is provided.

A lens positioning mechanism includes: a member holding unit that has a function of holding a second surface of a lens member having a first surface, which is a convex optical surface, and the second surface, which is an optical surface facing the first surface, and biasing the held lens member toward a side of the first surface; and an attitude control unit that regulates edge positions of a plurality of portions on the first surface of the lens member biased by the member holding unit to position the lens member in a predetermined attitude.

A magnetic clamping apparatus includes a magnetic base, a handle, a grip, and a central axis. The magnetic base includes a magnet body and a mounting body. The handle and the magnetic base are concentrically positioned around the central axis. The mounting body is concentrically connected onto the magnet body thus allowing the magnet body to attach ferrous metals. The handle is terminally connected to the mounting body, and the grip is connected around the handle so that the user can easily grasp and control the magnetic clamping apparatus.

A fixture assembly for supporting a plurality of blanks during a welding operation. The fixture assembly includes a frame. A plurality of electromagnets are positioned on the frame for supporting the blanks and for drawing the blanks toward the electromagnets to secure the blanks into a desired position. A plurality of intensifiers are moveably connected to the frame for selectively overlying the top face of one of the electromagnets for clamping the blank against the electromagnet to intensify a magnetic force provided by the electromagnet. A plurality of electromagnet adjusters are each coupled with the frame and with at least one of the electromagnets for moving the electromagnets relative to the frame. A plurality of adjusting pins are each connected to the frame and moveable relative to the frame for adjusting a position of the blanks.

A fixing device for a secondary battery test having a seating stage on which the secondary battery to be tested is seated and which is provided as a magnetic body, a cover provided as a magnetic body to cover the secondary battery, and a magnetic force generator providing magnetic force to the seating stage and the cover is provided. When the magnetic force is transmitted from the magnetic force generator to the seating stage and the cover, attractive magnetic force is generated between the cover and the seating stage to fix the secondary battery disposed between the cover and the seating stage without moving.

Magnetic coupling devices are disclosed having magnetic field sensors. The magnetic coupling device may include a calibration module for calibrating the magnetic coupling devices.

An example tool is provided that includes an outer housing and an inner housing. The inner housing includes a magnetic element and is structured to travel at least partially within the outer housing under bias of a biasing mechanism. In addition, the inner housing can travel from a retracted position to an extended position. In the extended position, the magnetic element abuts or at least partially occupies a void defined by the outer tip.

A supporting device for mounting tools on a switchgear front panel which includes a first, fixing, plate and a second, supporting, plate connected to each other and free to rotate with respect to each other in a first plane; a first locking device for locking the first, fixing, plate and the second, supporting, plate at selected angular position with respect to each other; a magnetic fixing device comprising fixing magnets adapted to be fixed on the switchgear front panel; an adjustable connection device connecting the fixing magnets to the first, fixing, plate and including a second locking device for locking the fixing magnets at different positions with respect to the first, fixing, plate; a third locking device for fixing a tool on the second, supporting, plate. A tool kit for a switchgear including a switchgear tool and a supporting device is also disclosed.