With Vibrating Or Oscillating Element Damping, Frequency Adjusting Or Vibration Control Patents (Class 335/90)
  • Patent number: 8819860
    Abstract: A device including a first part and a second part, the first and second part being connected to each other and being movable relative to each other. The first part is a cantilever that has a rectangular strip with a probe tip at one end and a magnetic element the other end. The magnetic element is configured to interact with a magnetic field. The first part is connected to the second part by a hinge.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: August 26, 2014
    Assignee: International Business Machines Corporation
    Inventors: Michel Despont, Venkataraman Kartik, Charalampos Pozidis, Deepak R. Sahoo
  • Patent number: 8736202
    Abstract: In a drive control circuit of a linear vibration motor, the drive signal generating unit generates a drive signal whose phase is opposite to that of the drive signal generated during the motor running, after the running of the linear vibration motor has terminated; this drive signal of opposite phase includes a high impedance period during which the driver unit is controlled to a high impedance state. An induced voltage detector detects an induced voltage occurring in the coil. A comparator has a function as a hysteresis comparator in which the output level does not vary in a predetermined dead band, and the comparator outputs a high-level signal or a low-level signal during the high impedance period. When an in-phase signal is consecutively outputted from the comparator during the consecutive high-impedance periods, the drive signal generating unit determines that the linear vibration motor has come to a stop.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: May 27, 2014
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Tsutomu Murata
  • Patent number: 8682396
    Abstract: Disclosed is a vibration module for a portable terminal that includes a housing, a magnetic moving part movable in a first direction within the housing; an elastic member supported between the opposite ends of the magnetic moving part and inner walls of the housing, and a solenoid coil provided in the housing. The vibration module is positioned at one end of the moving section by the magnetic force of the magnetic moving part and an object around the magnetic moving part, allowing the vibration module to provide a user with a feeling similar to a click feeling via the acceleration produced at a stopping instant. In addition, when vibrating, the vibration module generates sufficient vibration power through acceleration at the instant of changing moving direction at the ends of the moving section, to provide an alarm function, such as an incoming call notification.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: March 25, 2014
    Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology
    Inventors: Tae-Heon Yang, Yu-Dong Bae, Dong-Soo Kwon, Young-Min Lee, Eun-Hwa Lee, Jeong-Seok Lee, Dong-Bum Pyo, Young-Jun Cho
  • Publication number: 20130278363
    Abstract: A device including a first part and a second part, the first and second part being connected to each other and being movable relative to each other. The first part is a cantilever that has a rectangular strip with a probe tip at one end and a magnetic element the other end. The magnetic element is configured to interact with a magnetic field. The first part is connected to the second part by a hinge.
    Type: Application
    Filed: June 18, 2013
    Publication date: October 24, 2013
    Inventors: Michel Despont, Venkataraman Kartik, Charalampos Pozidis, Deepak R. Sahoo
  • Patent number: 8390218
    Abstract: The present invention relates to synchronized vibration devices that can provide haptic feedback to a user. A wide variety of actuator types may be employed to provide synchronized vibration, including linear actuators, rotary actuators, rotating eccentric mass actuators, and rocking mass actuators. A controller may send signals to one or more driver circuits for directing operation of the actuators. The controller may provide direction and amplitude control, vibration control, and frequency control to direct the haptic experience. Parameters such as frequency, phase, amplitude, duration, and direction can be programmed or input as different patterns suitable for use in gaming, virtual reality and real-world situations.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: March 5, 2013
    Assignee: Coactive Drive Corporation
    Inventors: John Houston, Nathan Delson
  • Patent number: 8207806
    Abstract: According to one embodiment, magnetization directions of a magnetic free layer and a magnetic pinned layer are parallel to junction planes between the magnetic free layer and a spacer layer and between the magnetic pinned layer and the spacer layer. The magnetic free layer has a uniaxial magnetic anisotropy, and generates a magnetization oscillation when a current larger than an oscillation threshold current flows through the magnetic free layer. A magnetic field generator controls a magnitude and a direction of an external magnetic field to cancel a shift amount of an oscillation frequency caused by a diamagnetic field due to the magnetization oscillation and a shift amount of the oscillation frequency caused by a magnetic field due to the uniaxial magnetic anisotropy.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: June 26, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kiwamu Kudo, Koichi Mizushima, Tazumi Nagasawa, Rie Sato
  • Patent number: 8174345
    Abstract: A vibration generator 1 has an attachment structure of a spring by which the attachment error of the spring elastically supporting a mover composed of a magnet and a yoke does not become the error of the span of the spring to make it possible to improve the ease and yield of manufacture. The vibration generator 1 includes a mover which is composed of a magnet 5 and yokes 4, 7a and 7b, and a spring 6 which is composed of an integrally molded article made of an elastomeric material and elastically supports the mover to allow the mover to vibrate in the central axis direction C. The spring is arranged on the outside of a coil 3 in a radial direction thereof and extends along the radial direction.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: May 8, 2012
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Masaharu Kagami, Kazutaka Sakaguchi, Yuki Takahashi, Shigenori Inamoto
  • Patent number: 8138440
    Abstract: A fast acting switching mechanism for a circuit breaker includes a drive rod articulated to a drive module and supporting at an end thereof a contact bridge having at opposite ends thereof respective moveable contacts for switchably engaging a pair of fixed contacts of the circuit breaker. A contact spring unit is operatively coupled to the drive module for applying closing pressure in the order of 200 Kg; and a latch latches the drive rod in an open or closed position after operation of the circuit breaker and prevents rebounds. The contact bridge includes a pair of side conductors supporting on upper edges thereof an armature having an exposed upper surface that supports the moveable contacts at opposite ends of the armature; and a reinforcing element inserted between the side conductors.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: March 20, 2012
    Assignee: Arcoline Ltd.
    Inventors: Yuriy Onufriyenko, Eduard Ulanovsky, Dov Yeger, Yefim Gofman
  • Patent number: 7843289
    Abstract: An improved electromechanical switch designed to operate at frequencies from DC through microwave has terminal probe tips that are formed from an alloy of noble metal and contoured with a pattern of peaks and valleys in order to provide better contact wiping operation and capture of wear debris. The switch incorporates damper elements to reduce switching contact bounce, thus providing increased contact life as well as higher quality signal switching.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: November 30, 2010
    Assignee: Scientific Components Corporation
    Inventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk
  • Patent number: 7535328
    Abstract: In an electromagnet switch, a stationary iron core is composed mainly of a base part and a disk part. The base part is faced to a plunger and the disk part is forcedly inserted and fixed to a boss part formed in the base part. The disk part is composed of a metal plate of ferromagnetic substance (iron plate) and another substance plate (made of resin or rubber and the like, for example,) of a smaller spring constant or a larger damping coefficient than that of the metal plate. The metal plate and another substance plate are laminated. Another substance plate absorbs or reduces the impact force when the plunger is electromagnetically attracted toward and collides with the base part. The propagation of a large impact noise or crashing sound is thereby suppressed, and as a result the impact noise can be reduced.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: May 19, 2009
    Assignee: Denso Corporation
    Inventors: Tadahiro Kurasawa, Shinji Usami, Tomohiro Teramachi
  • Patent number: 7461728
    Abstract: A system (100, 200, 300) for damping vibrations of a vibratory structure (104, 308). The damping system includes an active damper (112, 124, 128, 216), a vibration sensor (116, 208, 208A?-C?), and a controller (120, 212) for controlling the active damper in a manner that damps vibration of the vibratory structure. In some embodiments, the active damper comprises an active mass (132, 220, 220A?-C?, 220A?-C?) and an actuator (136) for controlling the movement of the active mass. In other embodiments, the active damper comprises a flexural damper (128).
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: December 9, 2008
    Assignee: University of Vermont and State Agricultural College
    Inventors: Dryver R. Huston, Brian Esser, James O. Plumpton
  • Patent number: 6489869
    Abstract: An electrical component having a functional unit which is secured to a header and which generates or is sensitive to sound, and having terminal elements which are mechanically secured to the header and electrically and acoustically coupled to the functional unit and which project through holes in the header onto the side of the header remote from the functional unit and which have a modulus of elasticity of EA>50 MPa, in which the terminal elements are partially encased in a viskoelastic material having a modulus of elasticity of EW<10 MPa. By encasing the terminal elements in a viskoelastic material, effective sound-damping can be produced. Furthermore, the invention relates to a process for manufacturing the component.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 3, 2002
    Inventors: Juergen Breitlow-Hertzfeldt, Ralf Hoffmann
  • Patent number: 5949313
    Abstract: An electromagnetic relay for low acoustic noise in operation including a body having an insulating inner base, an electromagnet having an iron core, a moving spring contact having an armature, and a fixed spring contact for making an on/off action between the moving and fixed spring contacts by actuating the electromagnet, wherein the insulating inner base supports other members of the body, a plurality of L shaped conducting suspenders suspend the insulating inner base by each vertical arm, a plurality of U shaped blade springs support each horizontal arm of the L shaped conducting suspenders, and an insulating outer base having a plurality of outer terminal leads, each of which is gaplessly continuous to the corresponding one of the U shaped blade springs, support the body above the insulating outer base by each of the outer terminal leads, the U shaped blade springs, and the L shaped conducting suspenders in series connection.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: September 7, 1999
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Shigemitsu Aoki, Hiroyuki Uchino, Yoshio Okamoto
  • Patent number: 4626811
    Abstract: The gap distance separating the contacts of a low-voltage circuit breaker in the tripped position is increased by utilizing resilient stop means which is located at the bottom wall of the breaker housing rather than at the top wall (or on the handle of the breaker) in accordance with prior art practice. The movable contact arm is pivotally mounted and structured to strike the stop means as the contacts are separated and being blown open during short circuit conditions and, after the circuit breaker is tripped, the collapsed toggle assembly of the operating mechanism shifts the movable contact arm away from the stop means and allows the arm to move an additional distance away from the fixed contact and thus increase the gap distance between the opened contacts.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: December 2, 1986
    Assignee: Westinghouse Electric Corp.
    Inventors: Jere L. McKee, William I. Stephenson, Donald E. Schlosser
  • Patent number: 4035789
    Abstract: A liquid level sensing system comprises a permanent magnet mounted in a cylindrical supporting case disposed in a housing and provided with a resistance plate at one end thereof, a reed switch arranged parallel to the permanent magnet and electromagnetic means including an iron core and a coil arranged above the supporting case and on the same axis as the permanent magnet. When the level of the engine oil goes down, the reed switch and the electromagnetic means cause the permanent magnet to vertically vibrate in the supporting case in the axial direction thereof thus causing for example a lamp to flash on and off and indicate the existence of an irregularity. With the construction described above, the system of this invention is capable of sensing an abnormal deterioration of the engine oil in addition to the sensing of the engine oil level.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: July 12, 1977
    Assignee: Nippon Soken, Inc.
    Inventors: Sigeyuki Akita, Junji Kitagawa