A portable meter (1) for measuring a force generated by a magnetic apparatus (2), comprising a mobile probe (3) configured to be coupled to the magnetic apparatus (2) whose force needs to be measured, the probe (3) comprising at least one active ferromagnetic element (4) which has a configuration corresponding to that of a pole (N, S) on the magnetic apparatus whose force needs to be measured, the probe being equipped with alignment means (5, 6) configured to align the at least one active ferromagnetic element (4) with at least one magnetic pole (N, S) on the magnetic apparatus (2), the at least one active ferromagnetic element (4) having at least one turn (B)—made of an electrically conductive material—wound around it, and a detection unit (7) interfaced with the at least one turn (B) in order to detect a magnetic flux flowing through the coil at least during a transient of activation/deactivation of the magnetic apparatus.

A portable meter (1) for measuring a force generated by a magnetic apparatus (2), comprising a mobile probe (3) configured to be coupled to the magnetic apparatus (2) whose force needs to be measured, the probe (3) comprising at least one active ferromagnetic element (4) which has a configuration corresponding to that of a pole (N, S) on the magnetic apparatus whose force needs to be measured, the probe being equipped with alignment means (5, 6) configured to align the at least one active ferromagnetic element (4) with at least one magnetic pole (N, S) on the magnetic apparatus (2), the at least one active ferromagnetic element (4) having at least one turn (B)—made of an electrically conductive material—wound around it, and a detection unit (7) interfaced with the at least one turn (B) in order to detect a magnetic flux flowing through the coil at least during a transient of activation/deactivation of the magnetic apparatus.

A device for holding in position a product to be processed includes a base connectable by magnetic interaction to a work surface of an apparatus for tumbling or polishing and comprising a first portion and a second portion movable along an operating direction mutually towards or away from a first and a second operating position. The device also includes a retaining support connected to the base and configured to hold in a stable position a product to be processed between a first and a second retaining element. Between the first and the second portion of the base an actuation member is interposed, configured to move the same portions between the first operating position and the second operating position. A method for holding in position a product to be processed is also disclosed.

An automatic dispensing device for dispensing a volatile substance, the device comprising: a fan configured to generate airflow and dispense the volatile substance from the device; a drive apparatus having at least one electromagnetic coil connectable to a drive circuit; wherein the fan comprises at least one magnet located along an arc of the fan and the electromagnetic coil is configured to attract or repel the at least one magnet; wherein the drive circuit is configured to switch the current direction in the electromagnetic coil to sequentially attract and then repel the at least one magnet as the fan rotates.

A portable press is usable with parts that are assembled by interference fit or friction fit. A force application member slidably engages a plurality of guides. An actuator, such as a pneumatic or hydraulic jack or cylinder, applies force to the force application member to move the force application member toward a static plate. The force application member acts to either press in, or press out, a first part relative to a second part. The press of the invention is portable, so that the press can be moved to the mechanical structure requiring a press for removal or insertion of parts. The press may be constructed in a vertical or horizontal embodiment.

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 magnetic chuck includes a cylinder tube including a workpiece attraction surface to which a workpiece is attracted, a piston assembly including a permanent magnet and being movable in an internal space of the cylinder tube, the piston assembly separating the internal space of the cylinder tube into a first pressure chamber and a second pressure chamber, a first supply/discharge port formed in the cylinder tube and communicating with the first pressure chamber, a second supply/discharge port formed in the cylinder tube and communicating with the second pressure chamber, and a communication passage configured to allow the first pressure chamber and the second pressure chamber to communicate with each other.

A prefabricated vehicle may include a body module providing a vehicle body; a platform module having a battery and a driving wheel, and selectively fastened to the body module; a connecting portion that includes a magnetic module provided in any one of the body module and the platform module and an armature provided in a remaining one of the body module and the platform module, the connecting portion being configured such that the magnetic module and the armature face each other when the body module and the platform module are fastened to each other; and a controller connecting the body module and the platform module to each other to be easily replaceable by applying power to the magnetic module to allow the magnetic module and the armature to be connected to each other by a magnetic force.

A door assembly includes: a door including a first region; a doorframe connected to the door through a door hinge, the doorframe including a second region, wherein the first region faces the second region when the door is closed; an electromagnet located at one of the first and second regions; a permanent magnet located at the other one of the first and second regions; a distance sensor configured to detect a distance between the door and the doorframe; and a control chip coupled with the distance sensor, the control chip being configured to control a direction of a current in the electromagnet according to the distance detected by the distance sensor.

A metal sheet holding device for manufacturing a pattern mask used in manufacturing processes of a flat panel displays include a first holder and second holder. The first holder includes an adhesive layer contacting edge portions of a metal sheet, and a first frame supporting the metal sheet using the adhesive layer. The second holder includes a second frame below the first frame, a supported plate positioned at the center of the second frame, and an adhered unit positioned between the central portion of a metal sheet and the supported plate. The adhered unit generates an electrostatic force or a magnetic force to hold the central portion of the metal sheet.