1
Theodore J Falk, Lawrence E Morris: Low power electromagnetic pump. Greatbatch Enterprises, Christel Bean & Linihan, February 11, 1986: US04569641 (43 worldwide citation)

An electromagnetic pump comprising a housing having fluid receiving and pumping chambers in communication with an inlet and an outlet, respectively, an electromagnet carried by the housing external to the fluid chambers, and a barrier in the form of a thin diaphragm of fluid impermeable material whi ...


2
Hidetoshi Amaya, Takio Maekawa, Toyokatsu Okamoto, Yasuo Ibuki: Linear vibration motor and method for controlling vibration thereof. Matsushita Electric Works, Griffin Butler Whisenhunt & Szipl, September 21, 1999: US05955799 (36 worldwide citation)

A linear vibration motor which includes a vibration system, an electromagnetic driver, a detection system, and a control system. The vibration system includes a driven member or reciprocator which is mounted to a magnetic member for reciprocating movement. The amplitude of the reciprocating movement ...


3
Tetsuo Muraji: Thermo-sensitive actuator and idle speed controller employing the same. Mikuni Corporation, Varndell Legal Group, April 21, 1998: US05742106 (34 worldwide citation)

A thermo-sensitive actuator capable of operating without the need of providing a temperature detector as a separate member. The actuator includes a stator made of a magnetic material to form a yoke. A rotor is rotatably provided in an opening provided in the stator. The actuator further includes pol ...


4
Howard Robert: Solenoid having increased throw capability. Centronics Data Computer, Ostrolenk Faber Gerb & Soffen, August 27, 1974: US3831729 (34 worldwide citation)

A solenoid for actuating a print wire normally biased against the impact direction by novel spiral spring means. Energization of the solenoid coil rapidly moves the print wire in the impact direction against the bias of the spring. Release of the energy supplied to the solenoid coil causes very rapi ...


5
Michael K Bidol: Linear compressor. Tecumseh Products Company, Barnes Kisselle Raisch & Choate, March 30, 1976: US03947155 (32 worldwide citation)

A moving-iron, linear-motor compressor suitable for use in a refrigerant system, wherein a conical armature reciprocates in a complementary air-gap under the influence of an electromagnetic circuit and a pair of linear (constant rate) complementary return springs connected to the armature between th ...


6
Peters Rex B: Vibration transducer. Systron Donner Corporation, January 4, 1972: US3633053 (29 worldwide citation)

Vibration transducer having a sealed capsule secured concentrically to an integral soft iron pole piece. An elongate bar magnet is slidably mounted in the capsule and has substantially coincident magnetic and mechanical axes. Suitable means is mounted within the capsule and engages opposite ends of ...


7
Wolford Earl W, Frazee Orville P: Magnetic pump. O Brien Clarence A, Jacobson Harvey B, September 17, 1974: US3836289 (26 worldwide citation)

A pump device comprising at least two magnetizable members defining in part a fluid chamber disposed therebetween, means for generating magnetic fields of generally uniform flux through said magnetizable members along their respective lengths, whereby the magnetizable members are periodically polari ...


8
Yasuo Ibuki, Hidetoshi Amaya, Toyokatsu Okamoto: Vibrating linear actuator and method of operating same. Matsushita Electric Works, Greenblum & Bernstein, August 27, 2002: US06441571 (24 worldwide citation)

Vibrating linear actuator and method of operating same. The actuator of the invention includes a stator, a spring vibration system having a moving portion with a magnet and further having a spring configured to support the moving portion. The actuator further includes an electromagnetic coil configu ...


9
Hiromi Onodera, Noriaki Wakabayashi, Kiichiro Yamada, Yasushi Sugizaki: Linear motor. Matsushita Electric Industrial, Wenderoth Lind & Ponack, March 12, 1985: US04504750 (23 worldwide citation)

A linear motor comprising; a pair of iron cores with plural magnetic teeth groups in which phase is shifted 180 degrees in the direction of its movement, a movable element in which groups of magnetic teeth on the same iron core have the same phases, plural rows of magnetic teeth positioned crossing ...


10
Joon Choi, Il Oung Park: Samsung Electro-Mechanics, Lowe Hauptman & Berner, May 2, 2006: US07038335 (21 worldwide citation)

A vertical vibrator is disclosed. The vibrator comprises a casing, a magnetic field part including a yoke and a magnet fixed to an inner surface of the yoke, a spring member fixed at one end to the casing and at the other end to the magnetic field part, a vibration part having a weight integrally mo ...