Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 8188690 | Magnetically powered reciprocating engine and electromagnet control system The instant invention provides a magnetically controlled reciprocating engine having a unique electromagnet control system. The engine is constructed and arranged to operate from a stored power source such as batteries to provide extended run times by controlling th... | 05/29/2012 |
| 7911160 | Oscillation device, optical deflection apparatus, and drive-signal generating method An oscillation device capable of generating a drive signal waveform with a sufficiently small number of harmonic components is provided. The oscillation device includes an oscillation system, a supporting unit configured to support the oscillation system, a drive un... | 03/22/2011 |
| 7385362 | Method for driving a vibrating device for a portable object that comprises a coil and a moving mass The drive method consists in setting in vibration a moving mass of a vibrating device for a portable object using a series of voltage pulses provided to the coil of the vibrating device, which is electro-magnetically coupled to the moving mass. In a phase of driving... | 06/10/2008 |
| 7292025 | Bipolar interrogation for magnetostrictive transducers A magnetostrictive-based sensor is disclosed which obtains higher return signals through the use of multiple consecutive input pulses. ... | 11/06/2007 |
| 7288913 | Drive wave generation circuit Two standard waves from a standard waveform generation circuit are output via an output gate while being interchanged by a direction selector. The switching operation of the direction selector is controlled by a direction control signal M/I. 200 cycles of the standa... | 10/30/2007 |
| 7288914 | Drive wave generation circuit Two standard waves from a standard waveform generation circuit are output via an output gate while being interchanged by a direction selector. The switching operation of the direction selector is controlled by a direction control signal M/I. 200 cycles of the standa... | 10/30/2007 |
| 7271522 | Driving device and driving method A driving device of the disclosure has an electromechanical transducer that extends and contracts upon application of voltage thereto and a support member that slidably supports a movable body and is displaced with the electromechanical transducer to which the suppo... | 09/18/2007 |
| 7193351 | Driving device and driving method A rod is sawtooth-like vibrated by cyclically applying, to a piezoelectric element, voltage values which are stepwise and sequentially increased or decreased, so that a moving unit is driven along the rod in one direction or the opposite direction. The sequentially ... | 03/20/2007 |
| 7190104 | Device and method utilizing electromechanical conversion element To provide a driving device, utilizing an electromechanical conversion element, having a driving pulse generating means capable of generating a sawtooth waveform driving voltage with a simple circuit configuration. The driving device includes: an electromechanical c... | 03/13/2007 |
| 7182280 | DC power spraying tool A DC power spraying tool includes a housing having an inlet opening, a discharging opening, and a motor cavity, a liquid container for containing a liquid colorant therein communicatively connected to the inlet opening of the housing, a spray nozzle extended from th... | 02/27/2007 |
| 7154239 | Controller for a brushless direct current motor A controller includes a power source unit, a drive circuit, and a state control circuit. The drive circuit is coupled to the power source unit, and includes a drive coil and a switching transistor unit. The switching transistor unit is operable in one of a circuit-m... | 12/26/2006 |
| 7001154 | Apparatus for controlling a linear compressor and preventing the collision of a piston with a valve in the compressor Disclosed herein is an apparatus and method for controlling a linear compressor. The linear compressor control apparatus has a collision detection unit, a control unit, and a compressor driving unit. The collision detection unit detects a collision of a piston with ... | 02/21/2006 |
| 6935611 | Motor control device for flow control device A motor control device for a flow control device includes an opening part through which an upstream side of a fluid flow passage is in communication with a downstream side of the fluid flow passage, a valve element that controls a flow of a fluid which passes throug... | 08/30/2005 |
| 6918884 | Vibrating lumbar suppport A vibrating lumbar support transmits vibrations from an electromagnetic pulse vibrator through a vibration plate, guide rods, an arching pressure surface and then to a seat occupant. The vibrating unit may also transmit vibrations to a seat occupant through a push p... | 07/19/2005 |
| 6667589 | Electricity distribution network for a motor vehicle An electricity distribution network for a motor vehicle, the network having at least two pieces of equipment connected to a storage battery, at least one of the pieces of equipment operates in a pulse mode likely to create oscillations in the network at a... | 12/23/2003 |
| 6593712 | Drive control device of vibration wave motor The present invention relates to a vibration wave motor which is configured to prevent abnormal noise from being produced at a start time or a stop time and, more particularly, to a control device for a vibration wave motor which obtains a driving force b... | 07/15/2003 |
| 6548971 | Dual sided self-oscillation circuit for driving an oscillatory actuator A dual sided self-oscillation circuit for driving an oscillatory actuator with high efficiency and high response speed. The actuator has a winding to receive a periodical supply current from a power source and oscillates in a predetermined resonant freque... | 04/15/2003 |
| 6285151 | Method of compensation for flux control of an electromechanical actuator A method of controlling velocity of an armature of an electromagnetic actuator as the armature moves from a first position towards a second position is provided. The electromagnetic actuator includes a coil and a core at the second position. The coil gene... | 09/04/2001 |
| 6249093 | Drive mechanism employing electromechanical transducer, photographing lens with the drive mechanism, and its drive circuit A driving apparatus, employing a piezoelectric element, for smoothly and silently driving a focus lens of a camera over a wide range of its driving speed. The driving apparatus includes a control system for controlling the piezoelectric element in such a ... | 06/19/2001 |
| 6133701 | Driving circuit for oscillatory actuator An actuator driving circuit is provided for a positive feedback amplification, through an amplifier, of a counter electromotive force generated in a stator coil of a linear actuator, for continuating a reciprocating movement of a moving element by self-os... | 10/17/2000 |
| 6050393 | Drive apparatus for driving an oscillator and a powder feeder having the drive apparatus therein Disclosed is the drive apparatus for the powder feeder, which has; the duty ratio control circuit 12 which applies the alternating voltage with the resonance frequency to the vibrator 10 during a time corresponding to the duty ratio; the current monitor 1... | 04/18/2000 |
| 5764018 | Hysteresis removal for positioning systems with variable backlash and stiction A system and method for reducing non-repeatable positioning errors. Non-repeatable positioning errors caused by the effects stiction and backlash in the mechanical system are reduced by "shaking" or vibrating the positioning system in a controlled manner.... | 06/09/1998 |
| 5656896 | Power supply for vibrating compressors A power supply for vibrating compressors comprises a voltage booster circuit portion having voltage changing means for boosting the DC voltage of a commercially available battery and changing the boosted voltage, and an AC voltage generating circuit porti... | 08/12/1997 |
| 5519292 | Fingertip massager A fingertip massager transmits a pulsating action through the fingertips of the user to an area being massaged. Vibrating pulsators are attached to the user's fingers for vibrating same. A controller attached to the user's wrist controls the vibration of ... | 05/21/1996 |
| 5483131 | Self-starting swinging apparatus A self-starting swinging apparatus including a free-running oscillation circuit comprising two transistors which are a PNP transistor and an NPN transistor, the bases of both transistors being connected respectively to the collector of one transistor dire... | 01/09/1996 |
| 5450521 | Pulse width modulator An electrical circuit and method for generating a continuous train of width modulated pulses. A square wave is generated and a delay circuit provides a delayed analog of the square wave. A controllable duration one-shot multivibrator generates a modulatin... | 09/12/1995 |
| 5126545 | Portable laser scanning system having a motor drive with no DC windings A lightweight hand-held scanning device for repetitively scanning a laser light source having a laser light generating means and at least one high speed scanning motor controlled by a motor drive circuit which adjusts the amplitude and presets the frequen... | 06/30/1992 |
| 5022384 | Vibrating/massage chair A device for creating vibration within a chair which provides a therapeutic benefit to users. The chair has a control for adjusting the frequency of the vibrations and the amplitude of the vibrations, providing a wide variety of therapeutic results. The c... | 06/11/1991 |
| 4958894 | Bouncing oscillating scanning device for laser scanning apparatus Beam sweeping apparatus for use in a scanning device. The apparatus comprises a mirror mounted on a pivot arm and arranged to be oscillated about an axis in an arc for sweeping a beam of light in a predetermined path. A pair of resilient are located adjac... | 09/25/1990 |
| 4705995 | Control circuit for airless spray gun An airless spray gun includes a pump piston and a drive arrangement formed of a coil and a swinging armature for connection to an alternating current network. A suppression circuit is provided for periodically suppressing an arbitrarily selectable whole n... | 11/10/1987 |
| 4588934 | Automobile fan control with non-periodic fluctuation signal generator An automobile fan controller comprises: a fluctuation signal generator for generating a fluctuation signal; a pulse-width-modulation circuit including a triangle generator for generating a triangle-waveform signal having a constant amplitude and a constan... | 05/13/1986 |
| 4544867 | Vibrator for furniture A vibrator control circuit is provided for controlling the driving current supplied to the driving coil of an electromagnetic vibrator for a bed or the like. The control circuit is adapted to be connected to source of A.C. line voltage such as a standard ... | 10/01/1985 |
| 4464613 | Blocking oscillator for a reciprocating electromagnetic actuator A blocking oscillator for a reciprocating electromagnetic actuator having a solenoid coil, a detection coil for generating a control signal in response to a charge in the magnetic field generated by the solenoid coil, a silicon Darlington amplifier respon... | 08/07/1984 |
| 4460854 | Control device for a vibrating armature motor A vibrating armature motor, which includes a voltage source, an armature, an electromagnet having at least one exciter coil disposed adjacent the armature, a spring for rotationally biasing the armature, a sensor element for sensing the rotational velocit... | 07/17/1984 |
| 4454456 | Method and circuit for operating a spray gun having a vibrating armature drive The invention deals with a method and a circuit for operating a spray gun having a vibrating armature drive which is energized with an electrical a.c. signal. To reduce the liquid which is sprayed per unit of time by the spray gun, a pulse width modulated... | 06/12/1984 |
| 4434933 | Gas flow rate control system A gas flow rate control system designed to control the gas flow rate by continuously controlling the opening of an electromagnetic valve, wherein the magnetic hysteresis of a plunger and a yoke which are magnetic material forming the magnetic circuit is r... | 03/06/1984 |
| 4403176 | Circuit for driving an ultrasonic dental tool at its resonant frequency Circuitry is disclosed for driving the transducer assembly of a dental handpiece at its resonant frequency. The circuitry includes a variable frequency oscillator and a peak-detecting processor which allows the oscillator to sweep through a continuum of f... | 09/06/1983 |
| 4401925 | Means of energizing vibrating feeders A method of, and apparatus for, energizing electromagnetic vibrators. An electromagnetic vibrator, driven by an electromagnet, is energized directly from an electric mains supply line carrying alternating current at a particular frequency. The electromagn... | 08/30/1983 |
| 4392092 | Oscillating-armature motor for electric dryshavers and the like An oscillating-armature electric motor comprises an armature which, during operation of the motor, moves along a path of oscillatory movement that includes a substantial range of movement in which the armature poles are located remote from the stator pole... | 07/05/1983 |
| 4318625 | Stepper motor load tuning A method is provided for adjusting to an original predetermined value the natural frequency of the carrier load of a processor controlled stepper motor driving said carrier through a belt and pulley arrangement. The adjustment is performed by having the m... | 03/09/1982 |
