A bistable electromagnetic actuator device, a permanent magnet means (12; 12a, 12b), as well as an armature unit (18) with an elongate plunger unit (10) extending along a moving direction, wherein said armature unit can be moved into at least one of two end and/or stop positions that are stable in the deenergized state by means of stationary electromagnetic driving means (22), wherein stationary magnetic field detector means (34; 34a, 34b) are assigned to a housing (20), which at least sectionally encloses the armature unit, for the contactless interaction with the permanent magnet means in at least one of the end or stop positions provided for the armature position detection, wherein the plunger unit features a terminal contact and/or engagement section (28) for interacting with an actuating partner in a contacting and non-positive fashion such that a non-positive contact and/or actuation by the actuating partner causes a motion of the armature unit into one of the end or stop positions, in which the armature unit remains in a stable fashion in the deenergized state, when the electromagnetic driving means are deactivated, and wherein the magnetic field detector means are arranged and wired for generating and outputting a detector signal corresponding to this end or stop position.

A magnetic actuator, comprising a first magnet having a first magnetic axis and having a first magnetic field, a second magnet having a second magnetic axis and having a second magnetic field, the first and second magnets defining, at least in part, a magnetic assembly; and a coil actuator assembly at least partially disposed about the magnetic assembly, wherein the first and second magnetic fields collectively approximate a curve. A tilt platform assembly, comprising a support base: a tilt platform pivotally coupled to the support base: at least one coil actuator assembly, mounted to one of the support base or the tilt platform; and at least one magnet assembly mounted to the other of the support base or tilt platform, and being disposable within the at least one coil actuator assembly, the at least one magnetic assembly comprising at least two magnets having respective magnetic fields angularly offset from one another and that collectively approximate a curve.

A magnetic actuator, comprising a first magnet having a first magnetic axis and having a first magnetic field, a second magnet having a second magnetic axis and having a second magnetic field, the first and second magnets defining, at least in part, a magnetic assembly; and a coil actuator assembly at least partially disposed about the magnetic assembly, wherein the first and second magnetic fields collectively approximate a curve. A tilt platform assembly, comprising a support base: a tilt platform pivotally coupled to the support base: at least one coil actuator assembly, mounted to one of the support base or the tilt platform; and at least one magnet assembly mounted to the other of the support base or tilt platform, and being disposable within the at least one coil actuator assembly, the at least one magnetic assembly comprising at least two magnets having respective magnetic fields angularly offset from one another and that collectively approximate a curve.

A bistable linear electromagnet comprising a first housing (10) and a second housing (11) in alignment, a movable armature (18) comprising a rod (19) and a shuttle (20) that is slidably mounted, and a first coil (13) positioned in the first housing and a second coil (15) positioned in the second housing. A cavity (25) is made in a measurement wall (4) of one of the housings, and the electromagnet comprises a magnetic field sensor (26) positioned in the cavity and designed to measure a magnetic flux existing in a magnetic path formed by the walls of said housing and by the shuttle, in order to detect whether the shuttle has moved towards or away from the abutment wall of said first or second housing.

A bistable linear electromagnet comprising a first housing (10) and a second housing (11) in alignment, a movable armature (18) comprising a rod (19) and a shuttle (20) that is slidably mounted, and a first coil (13) positioned in the first housing and a second coil (15) positioned in the second housing. A cavity (25) is made in a measurement wall (4) of one of the housings, and the electromagnet comprises a magnetic field sensor (26) positioned in the cavity and designed to measure a magnetic flux existing in a magnetic path formed by the walls of said housing and by the shuttle, in order to detect whether the shuttle has moved towards or away from the abutment wall of said first or second housing.

Introduced here is a modular electronic device case with accessories. The modular electronic device case contains at least two parts: a member surrounding four narrow sides of the electronic device, and a detachable member which can attach and detach from the member and/or the electronic device. The detachable member covers a fifth side of the electronic device, such as the backside of the electronic device. The detachable member can include a mechanical or an electronic accessory, such as a pocket, a surface attachment mechanism such as a suction cup, a camera, a battery, an audio port, etc. The accessories can communicate with the electronic device through wireless, or wired means.

Introduced here is a modular electronic device case with accessories. The modular electronic device case contains at least two parts: a member surrounding four narrow sides of the electronic device, and a detachable member which can attach and detach from the member and/or the electronic device. The detachable member covers a fifth side of the electronic device, such as the backside of the electronic device. The detachable member can include a mechanical or an electronic accessory, such as a pocket, a surface attachment mechanism such as a suction cup, a camera, a battery, an audio port, etc. The accessories can communicate with the electronic device through wireless, or wired means.

A linear actuator includes a magnet housing having first and second planar sides, a front plate and a rear plate, and a base plate covering a channel defined by the magnet housing. A first plurality of magnets is secured to the first planar side and a second plurality of magnets is secured to the second planar side. A linear guide slidably secured to an inner surface of the base plate. A piston assembly has a piston element attached to the linear guide. The piston assembly includes a shaft and a printed circuit board attached to the piston element. The printed circuit board defines a controller and a printed coil assembly. A flex cable is electrically connected to the printed circuit board. The piston assembly is disposed to move linearly during operation of the linear actuator.

An electromagnetic actuator comprises a dual stage action, wherein the actuator comprises an electromagnetic element between two ferromagnetic elements. An electric current driven through the electromagnetic element causes a magnetic field of the electromagnetic element to interact with the magnetic fields of the two ferromagnetic elements.

A valve includes a chamber and a piston positioned at least partially in the chamber. A first polymagnet is coupled to a first side of the piston, and a second polymagnet is positioned in the chamber and faces the first polymagnet. An actuator is coupled to the second polymagnet and rotates the second polymagnet from a first rotational position to a second rotational position, which causes the first polymagnet and the piston to move with respect to the second polymagnet.