Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 7906920 | Vibration generator A vibration generator has an oscillator including a magnet and a holding member for holding the oscillator based on a magnetic force emitted from the oscillator. The holding member includes a magnet or a magnetic body. The oscillator vibrates relative to the holding... | 03/15/2011 |
| 7411363 | Conservation of electrical energy and electro-magnetic power in motor, generator, and product components A capacitor, inductor, and power line are arranged in a series parallel combination tank circuit that operates over four quarters of a complete cycle. During the first quarter cycle: power is applied to the tank circuit, current flows through the inductor to the cap... | 08/12/2008 |
| 7187528 | Selective potting for controlled failure and electronic devices employing the same A selectively protected electrical system includes or operates with a power source, a load, a power driver circuit for controllably transferring power from the power source to the load, the power driver circuit being encapsulated in a potting material, and a control... | 03/06/2007 |
| 7176655 | Battery pack with built in communication port A system and method for providing a communication port integral with a battery pack assembly is disclosed. The system provides a pathway between an external unit and a host unit via a printed circuit board of the battery pack. The battery pack can include communicat... | 02/13/2007 |
| 7056105 | Unit utilizing current to control reciprocation for pushing fluids A unit utilizing current to control reciprocation for pushing fluids, including a chamber, a magnet, a coil connected with a circuit, a first inlet, a first outlet, a second inlet, a second outlet, a first valve and a second valve. The magnet is slidably disposed in... | 06/06/2006 |
| 7057370 | Ultra-fast precision motor with X, Y and Theta motion and ultra-fast optical decoding and absolute position detector A high-speed and extremely large range positioning apparatus capable of producing motions in multiple dimensions with high precision and very high reliability. An ultra fast absolute position sensor providing instantaneous position readings with sub nanometer precis... | 06/06/2006 |
| 7025183 | Pneumatic spring percussion mechanism with an electro-dynamically actuated driving piston The invention relates to a pneumatic spring percussion mechanism comprising a driving piston moving back and forth in a housing of the percussion mechanism and a percussion piston, wherein a pneumatic spring is configured between the driving piston and the percussio... | 04/11/2006 |
| 7023156 | Reversible motor Reversible motor including a stator having two windings (a–a′, b–b′), a start apparatus (c–c′) connected to one of the two windings (a–a′, b–b′) in series, switches (310,330,350) for providing power to the two windings selectively, wherein... | 04/04/2006 |
| 6977474 | Control system for a linear vibration motor A motor driving apparatus for driving a linear vibration motor includes an order output determining unit for determining a motor output which is required of the linear vibration motor, and a driving frequency determining unit for determining a driving frequency of t... | 12/20/2005 |
| 6909199 | Method and apparatus for compensating output voltage fluctuations of turbine/alternator on common shaft An electrical system and method for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A cont... | 06/21/2005 |
| 6680590 | Vibration motor and apparatus using the same A vibration motor obtains a FAST signal when r.p.m. of the motor is faster than reference speed, whereby an output-driving circuit is controlled by the FAST signal to omit parts of the powering periods of respective phases. The motor thus controls the r.p... | 01/20/2004 |
| 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 |
| 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 |
| 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 |
| 5130618 | Electrical drive circuits A drive circuit including a power stage [PSH/PSV] and a control stage therefor to co-operate to supply energy in a controlled manner with regard to a reference value to an inductive load when connected in operation, means [R21, R41/R25, R42] in the power ... | 07/14/1992 |
| 5119071 | Method and apparatus for controlling induction motor for compressor DC power is supplied to an induction motor for a compressor by switching ON/OFF in response to a modulated voltage waveform obtained from modulating waves which are used for generating AC power for energizing an induction motor and a carrier wave accordin... | 06/02/1992 |
| 4990805 | Low voltage electromagnetic pulse actuator The apparatus includes a driver (86). The driver (86) includes a front portion (90) which is adapted to receive a riveting die (92), and a rear portion (88) which is a copper plate. The copper plate (88) is receptive to the establishment of magnetic field... | 02/05/1991 |
| 4939432 | AC/DC automatic changeover and automatic charge device The AC/DC changeover device automatically changes from AC to DC current by setting a TRIAC on or off, to supply DC from a battery in the absence of AC, for powering an air pump for an aquarium.... | 07/03/1990 |
| 4862043 | Low voltage electromagnetic pulse actuator The apparatus includes a driver (86). The driver (86) includes a front portion (90) which is adapted to receive a riveting die (92), and a rear portion (88) which is a copper plate. The copper plate (88) is receptive to the establishment of magnetic field... | 08/29/1989 |
| 4737695 | Air pump for aquarium An air pump for an aquarium includes a power source, first and second electromagnetic coils, and a circuit powered by the power source and coupled to the coils for energizing the coils in an alternating manner at a selected frequency, the circuit includin... | 04/12/1988 |
| 4728871 | Novelty electric motor A permanent magnet armature is arranged to be moved initially in spaced proximity to an induction coil connected in an electric circuit across the series arrangement of a source of electric potential and an electronic switch such that when the moving magn... | 03/01/1988 |
| 4695777 | VR type linear stepper motor A linear stepper motor of the variable reluctance type including (a) a stator having a plurality of stator teeth formed with an equal pitch p along a longitudinal direction, (b) a slider having four slider poles, A pole, B pole, C pole, and D pole arrange... | 09/22/1987 |
| 4677353 | Electro-inductive vibratory monitoring system A method of and apparatus for measuring the vibration amplitude of an electromagnetic vibratory motor is disclosed in which the current induced in the coils of the motor is rectified and sensed and applied to a current signal conditioning circuit to produ... | 06/30/1987 |
| 4636695 | AC/DC electro-magnetic device for aeration pump in fish globe or the like An electro-magnetic device for an aeration pump for use in a fish tank or the like. The device includes a switch permitting the device to be operated with AC power, or with DC power and further, it can be operated with 120 V. or 240 V. AC. Upon being ener... | 01/13/1987 |
| 4554490 | Variable-frequency dual-motion feeder control using a single phase power source A variable-frequency feeder control using a single oscillator to develop signals for moving materials in either one of two directions. An output signal from the oscillator is applied to a first timing circuit which develops signal pulses for driving a hor... | 11/19/1985 |
| 4553074 | Method of and apparatus for the autosynchronization of an electromagnetic hammer An electromagnet hammer of the type described in U.S. Pat. No. 4,215,297 is autosynchronized by triggering the discharge thyristor in response to the detection of the position of the armature by a proximity detector, or by direct detection of the zero pas... | 11/12/1985 |
| 4547712 | Subharmonic controller for electromagnetic exciter A subharmonic controller for a dual coil electromagnetic vibrator, which derives both power and timing from a conventional a.c. line, having a zero crossing detector providing pulses at twice line frequency to a phase control. The phase control provides a... | 10/15/1985 |
| 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 |
| 4535760 | Vibratory massage apparatus A vibratory massage apparatus comprises a treatment portion elastically carried on a support, a vibration generator including an electric motor for providing vibrations to the treatment portion, and a control circuit connected to the motor for causing vib... | 08/20/1985 |
| 4517500 | Controller for electromagnetic exciter using power line subharmonic A synchronized subharmonic controller for a dual coil electromagnetic vibrator, which derives both power and timing from a single phase AC line, having a trigger circuit which operates the coils at one-third the power line frequency. A timing circuit is o... | 05/14/1985 |
| 4490654 | Control circuit for vibratory devices A vibratory amplitude controller for vibratory mechanisms such as a vibratory feeder having in addition to a parts container, an electromagnetic drive unit operated from an A.C. current source for imparting oscillatory motion to the parts container. The c... | 12/25/1984 |
| 4487556 | Low cost electromagnetic fluid pump A low cost electromagnetic fluid pump having molded structural plastic housing components, a biased reciprocating hollow piston, and a pair of plastic flapper valves providing for a unidirectional fluid flow is disclosed. An integrated circuit timer perio... | 12/11/1984 |
| 4474537 | Oscillating compressor The invention relates to an electrically driven oscillating compressor, in particular for use as refrigerating machine, comprising a piston compressor, an electric oscillating drive for directly driving the piston compressor and a pulse shaper for supplyi... | 10/02/1984 |
| 4468594 | Electromagnetic percussion implement A two-directional percussion implement selectively adaptable both for driving in and for extracting, e.g. piles, from the ground, includes two coaxial electromagnetic coils whose movable armatures are represented by extremities of a reciprocable ram. Oppo... | 08/28/1984 |
| 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 |
| 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 |
| 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 |
| 4371815 | Waterbed vibrator A vibrator mechanism, including a transducer and driving circuit, particularly adapted to vibrating a waterbed, includes two independently controlled vibration sources, each of which can generate vibration of varying amplitude and frequency. These two sou... | 02/01/1983 |
| 4370602 | Waterbed vibrator A vibrator mechanism, including a transducer and driving circuit, particularly adapted to vibrating a waterbed, includes two independently controlled vibration sources, each of which can generate vibration of varying amplitude and frequency. These two sou... | 01/25/1983 |
