Abstract: A method for assembling parts. A sealant is placed between a plurality of parts in a stack up to form a workpiece. The workpiece is clamped using a permanent magnet unit and an electromagnetic clamping device in an activated state such that a number of forces caused by a magnetic field clamps the workpiece between the electromagnetic clamping device and the permanent magnet unit. A number of holes are drilled in the workpiece. A number of fasteners are installed in the number of holes.

Abstract: An electromagnetic clamping system contains a housing, numerous permanent magnets, numerous low friction surfaces having a number of wheels, an end effector, an electromagnetic clamping device, first, second, and third coil systems, and a core. The end effector performs operations on a workpiece. The electromagnetic clamping device has an activated state and a deactivated state. The electromagnetic clamping device further includes a first coil system generating a first magnetic field causing normal forces on the permanent magnet unit and the clamping device; a second coil system generating a second magnetic field causing side forces on the permanent magnet unit; and a third coil system generating a third magnetic field causing a rotational force on the permanent magnet unit. The core provides access to the workpiece surface for performing operations thereon; and concentrates forces from a number of magnetic fields on the core surface contacting the workpiece surface.

Abstract: A system for transferring power and/or data through a skin of a vehicle includes a first module for disposition on an external surface of the vehicle, a first magnet arrangement attached to the first module, a second module for disposition on an internal surface of the vehicle, and a second magnet arrangement attached to the second module. The first magnet arrangement and the second magnet arrangement are selected to provide sufficient magnetic attraction therebetween to maintain the first module at a fixed position on the external surface of the vehicle by overcoming an air load force when the vehicle is in motion. When the first module and the second module are in registration with each other though the non-ferrous skin, at least one inductive coupling circuit through the non-ferrous skin is formed to provide one or more bidirectional paths therebetween for transfer of data signals, electrical power or both.

Abstract: An electromagnetic switch is provided which is equipped with a built-in electronic control circuit working to control energization of an exciting coil. The electronic control circuit is disposed within a chamber defined by a magnetic plate to be separate from a contact chamber. In other words, the electronic control circuit is disposed between the magnetic plate and the exciting coil, thereby avoiding the adhesion of conductive dusts, as arising from the wear of contacts, to the surface of the electronic control circuit. This results in decreases in electric insulation and short-circuit of the electronic control circuit and also eliminates the need for additional special parts to electrically insulate and shield the electronic control circuit, thus permitting the electromagnetic switch to be reduced in size and produced at a decreased const.

Abstract: An exemplary magnetic clamp holder used for a mechanical arm, includes a housing (21), a magnetic structure (22), and two positioning pins (25). The housing includes an attaching portion (211), and a joining portion (213) fixed to the attaching portion, the attaching portion and the joining portion cooperatively defining a receiving cavity (218). The positioning pins are disposed on the attaching portion of the housing. The magnetic structure is received in the receiving cavity. The magnetic structure includes a permanent magnetic module (223), an electro-magnetic module (225), and a magnetic shield plate (227) disposed between the permanent magnetic module and the electro-magnetic module. The electro-magnetic module is able to create a magnetic field for neutralizing a magnetic field created by the permanent magnetic module.

Abstract: A solenoid assembly (23) includes a coil assembly (65) having at least one coil winding (73) and an electronic circuit assembly (67), which is in electrical communication with the coil assembly (65). The electronic circuit assembly (67) has a printed circuit board (79) and at least one electronic component (81), which is surface mounted on the printed circuit board (79). A coating material (85) coats all of the plurality of external surfaces of the surface-mounted electronic component (81). A casing (87) over-molds an outer longitudinal surface (77) of the coil assembly (65) and all of a plurality of external surfaces of the electronic circuit assembly (67).

Abstract: A switch type ON/OFF structure for hoisting magnetic disks has a handle turnable towards one side to demagnetize and towards another side to generate a magnetic force to attract and move a work piece. The handle is hinged on one end surface of a hoisting magnetic disk which also has a first detent member and a second detent member. The first and second detent members can stop the turning of the handle. The handle further has an extensible latch member at one side spaced from the handle at a selected interval. The latch member has a distal end slidable over the second detent member and extendable downwards to allow the second detent member to be wedged in the interval and anchored. Thereby the hoisting magnetic disk can provide the magnetic attracting force and hoist and move the work piece safer.

Abstract: A vent assembly is provided for allowing internal contaminants to exit a solenoid. The vent assembly includes a vent membrane interposed between a gasket and a support. The support may have a variable diameter. The vent assembly attaches to the solenoid via a mating cover of the solenoid, which includes a vent opening that aligns with an opening in the gasket and includes a counter bore that captures the gasket. The vent assembly allows contaminants to exit the solenoid through a vent membrane. It also prevents contaminants from entering the solenoid around the vent membrane without the use of injection molding.

Abstract: A solenoid assembly for a valve includes a unitary, one-piece housing comprised of encapsulant. An electromagnetic device is completely encompassed by and embedded in the encapsulant. The device includes i) a bobbin and coil subassembly; ii) a terminal electrically connected to the coil; iii) a yoke surrounding the subassembly; iv) a flux plate electrically connected to the yoke and insulated from the coil such that a flux gap is provided between the coil and yoke; and v) a flux bushing closely received in the bobbin. Lead wires are electrically connected to the terminal and have one end embedded in the encapsulant. A hollow conduit receives and encloses the lead wires, and also has one end embedded in the encapsulant. Upon energization of the coil by current applied to the lead wires, electromagnetic forces generate a magnetic field which can be transmitted to a valve member received in the solenoid assembly.

Abstract: An improved magnetopermanent plate, constituted by a metallic body with high magnetic permeability, in the active plane of which there are provided hollow seats for accommodating corresponding coils composed of turns of electrically conducting wire covered with a sheath made of a material based on fluorocarbon resins; the turns are further mutually bound by means of a vitreous medium and are enclosed in a likewise vitreous protective element; the coils can be accommodated in the hollow seats, between which magnetopermanent means with a low polarization temperature coefficient are accommodated; means are provided for retaining the coils in the corresponding hollow seats.

Abstract: A locating ring for positioning and supporting an electric coil within a mold for encapsulation of the coil. The locating ring comprises an annular body defining a central axis and a plurality of tabs extending generally axially from the annular body. The annular is adapted to insulate the coil from a steel shell. The tabs are adapted to position the coil within the mold. In a preferred embodiment, the tabs include a recess along a portion of the radially inner face thereof which receives the encapsulating material prevents the separation of the tabs therefrom. In an alternate embodiment, a portion of the sidewalls of each tab are tapered outwardly from the inner face to the outer face thereof. In another aspect of the invention, the body of the locating ring includes a plurality of circumferentially spaced openings extending axially therethrough which provide a number of routes by which air may be vented during the molding operation.

Abstract: A solenoid winding and housing for use with an armature actuated fuel poppet valve and the process of applying interior and external annular plastic shields on and in the housing to seal against moisture and fuel and to provide joint and weld protection. A prong housing for the solenoid winding ends is molded along with the exterior molded shields. Noise insulation as well as protection of parts is provided with the molded shields.

Abstract: A solenoid valve includes a non-magnetic bobbin accommodating stationary and movable cores in a central bore, a coil wound on the bobbin, a magnetic yoke arranged on the outer portion of the coil and secured to the bobbin, a fluid passageway opened and closed by the movable core, a cover surrounding the outer portion of the coil, and a control circuit module for controlling the solenoid valve. The control circuit module is imbedded in the cover to form an integral part thereof and is electrically connected to terminals securely implanted in the bobbin or cover.

Abstract: The invention is intended for incorporation into an enclosure confining fluid about an electromagnet of the type having a core, at least one coil disposed about the core and a current source coupled to the coil to establish a magnetic field. According to the invention, at least a portion of the peripheral wall of the enclosure surrounding the core axis resides in non-parallel relationship with the axis of the core. As a result, a part of the peripheral wall portion is in closer proximity to the wire coil than the remainder of the wall portion. As a result, the heat readily conducts through the wall portion and is dissipated efficiently. The surface exposed to the atmosphere with the above construction has a greater area than would a planar wall parallel to the core axis so that heat dissipation is enhanced.

Abstract: A lifting magnet has lengths of sealed plastic tubing positioned circumferentially of its coil prior to its encapsulation in a magnet case. The tubing is hermetically sealed every few inches along its entire length in order to divide the tubing into individually sealed segments. The sealed segments form compressible air spaces at the outer periphery of the magnet coil which permit thermal expansion of the coil and the encapsulating material without substantial force being applied by the coil and the encapsulating material to the magnet case. In the event any one or a few segments of the tubing are perforated or otherwise disabled in the course of fabrication or assembly of the magnet, the balance of the sealed segments still serve their intended purpose.