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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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Class 318/7 - Plural, diverse or diversely controlled motors


Subclass of Class 318 - Electricity: motive power systems
Definition: Subject matter in which two or more motors are controlled
No. of patents: 153
Last issue date: 12/27/2011


1        
NumberTitleIssue Date
8084966Electromotive furniture drive for displacing parts of an item of furniture in relation to one another
An electromotive furniture drive (2) for displacing parts of an item of furniture in relation to one another comprises a base body (16) on which a first drive unit (4) and a second drive unit (6) are held. When the furniture drive (2
12/27/2011
7287301Utility vacuum
A utility vacuum that may be configured to employ a disposable bag or removable and reusable container for the collection of dirt and debris that are drawn into the utility vacuum. The utility vacuum may employ one or more movable legs that are movable between an ex...
10/30/2007
7213987Synchronization method and apparatus in a value metering system having a digital print head
A manually activated, value-metering system having a method and an apparatus for achieving synchronization, wherein the value metering system uses a digital print head to print a plurality of printed lines, one printed line at a time, on a substrate, which is advanc...
05/08/2007
7197268Current measurement circuit for transformer with high frequency output
A printer apparatus includes a photoreceptor, a magnetic roll, an electrode, a current source coupled to the electrode, the current source having a signal generator coupled to an input winding of a transformer that exhibits a parasitic capacitance; and a current mea...
03/27/2007
7187148Controller
Disclosed is a controller for restraining vibration of a driven element driven by a servomotor. The driven element driven by the servomotor is provided with acceleration detecting means. A correction value is obtained by multiplying a detected acceleration value det...
03/06/2007
7145300Multi-axis AC servo control system and method
A multiple axis servo control implements a multi-tasking PWM control unit to provide PWM signals for multiple axes in a single unit. A time slice mechanism provides axis selection signals based on a system clock signal to permit control parameters of the selected ax...
12/05/2006
7099101Apparatus, system, and method for determining contact with a magnetic head in a tape drive
An apparatus, system, and method are disclosed for determining brush contact with a magnetic head. A digitally generated signal is provided in a system and a first gain constant is adjusted without the brush in contact with the magnetic head until the signal achieve...
08/29/2006
7026780Method for stabilizing the movement of an articulated chain of a chain block, especially to prevent the formation of a resonance oscillation of the chain, and a chain block apparatus
The invention concerns a method for stabilizing the motion of an articulated chain of a chain block, especially to prevent the formation of resonance oscillation of the chain, in which an articulated chain is led across a polygonal chain wheel with non-uniform pitch...
04/11/2006
6934109Apparatus and method to monitor the relative position of a tape medium disposed in a tape drive
A method to monitor the relative position of a magnetic tape disposed in a tape drive, where that tape drive includes a first tape reel motor and a second tape reel motor. The method provides a magnetic tape disposed on a first tape reel, and releaseably attaches th...
08/23/2005
6856850Controlling web tension, and accumulating lengths of web, using a festoon
This invention pertains to processing continuous webs such as paper, film, composites, and the like, in dynamic continuous processing operations. More particularly, it relates to accumulating limited lengths of such continuous webs and to controlling tension in such...
02/15/2005
6841953Control for two or more dc motors, in particular actuators for adjustment of furniture
A control for DC motors, in particular actuators driven by a DC motor for adjustment of furniture, such as tables, beds, chairs, etc. includes a pseudomotor which is capable of supplying a voltage that corresponds to the motor speed on the basis of the current and v...
01/11/2005
6819065Dynamic braking of a tape motor
An apparatus and method for the controlled dynamic braking of a DC motor in a tape transport device are provided. A PWM state device includes a plurality of state transition paths, each path having an initial state, representative of a tape profile, including a pred...
11/16/2004
6680589Relay contact monitoring device
A device for monitoring the state of relay contacts is especially useful for controlling motor windings in air conditioning systems. When a first relay switch, which is operative to supply power to a first motor winding does not open as desired, a switch ...
01/20/2004
6583590String drawing device for a racquet
A string drawing electrical device for a racquet has a casing, a string holder, an actuating device and a control unit. The string holder is rotatably attached to a panel of the casing. The actuating device is mounted in the casing and provides two functi...
06/24/2003
6473669Controlling web tension, and accumulating lengths of web, by actively controlling velocity and acceleration of a festoon
This invention pertains to processing continuous webs such as paper, film, composites, and the like, in dynamic continuous processing operations. More particularly, it relates to accumulating limited lengths of such continuous webs and to controlling tens...
10/29/2002
6314333Method and apparatus for controlling web tension by actively controlling velocity and acceleration of a dancer roll
This invention pertains to processing continuous webs such as paper, film, composites, and the like, in dynamic continuous processing operations. More particularly, it relates to controlling tension in such continuous webs during the processing operation....
11/06/2001
6300732Dual power unit for movement of a back and footrest in armchairs and the like
The dual power unit includes an elongate housing having mounted therein adjacent opposite ends thereof two power units, one of which is drivingly connected to the movable back of an armchair, and the other unit is connected to a movable footrest of an arm...
10/09/2001
6208096Optimized winding drive
In a tape transport for recording and/or reproducing signals by means of a recording medium using separate winding motors for driving the winding plates, the drive of the winding motors servo units is constructed as open-loop control devices and/or closed...
03/27/2001
6191542Method and apparatus for cleaning a DC motor commutator-brush interface
Commutators on a direct current motor run at low speed for an extended period of time get covered with a coating that makes the interface between the commutator and the brushes unreliable especially with the low speed, low current operation. This is espec...
02/20/2001
6065883Franking apparatus and printing means thereof
A method and apparatus is disclosed for controlling energization of a take-up motor driving a take-up spool of used ink ribbon in thermal printing apparatus. Prior to a printing cycle, the take-up motor is energized to rotate the take-up spool until terns...
05/23/2000
5866877Oven for heating elongate cord
An oven for continuously heating a cord, which oven has a housing defining an internal space for treatment of a cord. The housing has an inlet and an outlet communicating with the internal housing space and between which a cord being heated passes in a pr...
02/02/1999
5804934Power output apparatus and method of controlling the same
A power output apparatus (20) of the present invention includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). The clutch motor (30) includes an outer rotor (32) linked wit...
09/08/1998
5767633Electric motor drive system
An electrodynamic motor drive system, for generating enhanced rotational output, is comprised of a pair of flywheel mechanisms that are integrally connected to an output shaft. Each flywheel mechanism is energized by its own motor and is operable to tempo...
06/16/1998
5729100Method and apparatus for controlling backlash in motor drive systems
An anti-backlash gearing system which includes first and second drive gears hich mesh with a driven gear to provide torque and rotational motion to the driven gear. The drive gears are each driven by a motor, while the driven gear drives a load. The anti-b...
03/17/1998
5712539Digital acoustic noise reduction in electric motors driven by switching power amplifiers
A system and method is provided for controlling a brushless DC motor (100), the motor being of the type having a plurality of coils (25, 26, 27) and a switching amplifier coil driving circuit (25A, 26A, 27A) including a plurality of transistors (21, 22, 2...
01/27/1998
5691610Process for reducing the friction between a rotating head drum and recording medium in tape form during winding operation
A process for reducing the friction between a rotating head drum and a tape-shaped recording medium which surrounds the head drum for recording and/or playing back information. In order to shorten access time to information stored on the tape-shaped recor...
11/25/1997
5485066Variable speed centrifugal drive control for sugar refining machines and the like
A drive control system for a centrifugal used in, for example, a sugar refining operation, optimizes the deceleration and plow-out phases of its operation based on the torque characteristics of its particular drive motor. This is achieved by providing a c...
01/16/1996
5410224Tape position-dependent, standstill tape tension control system
A magnetic tape transport having a pair of reel motors for bidirectionally driving a tape between a pair of reels within a cassette housing, and a pair of tension control transistors for controllably varying supply voltages across the respective reel moto...
04/25/1995
5357178Web tensioning control system
A motor control system for controlling a plurality of drive motors in a web tensioning system includes individual motor control circuits for each motor in the system. The web tensioning system includes a main exit drive motor and a plurality of helper dri...
10/18/1994
5352961Control method and apparatus for a servo-mechanism
A servo-mechanism control system calculates an operation value to be applied to a control object from a desired value of a control output and a detected control output of the control object, and drives the control object based on the calculated operation ...
10/04/1994
5350981Method and apparatus for winding a cord continuously in dip treating apparatus
This invention discloses a method and an apparatus for winding a cord continuously. A rotation of a winding bobbin around which a cord to be a tension member of a belt, is detected directly or indirectly. A cord is forwarded in an axial direction of a win...
09/27/1994
5341073Device for controlling reel driving motor
A device for running a tape-like medium between a pair of reels in accordance with one of a plurality of tape-running modes having different tape running speeds has the following constituents, a reel driving apparatus for rotating the reels; a circuit for...
08/23/1994
5320266Strip storage arrangement with independent tension control of synchronously operated support carriages
A strip storage arrangement with a strip storage unit in strip treatment plants. The strip storage unit is divided into two or more storage sections. Each strip storage section has its own tension drive. Speed-controlled intermediate strip drives are arra...
06/14/1994
5289087Surface winder drive and method
A batcher has a brake (E) connected to the packing roll (B) for slowing the packing roll as during an unwinding phase to vary the packing ratio between the packing roll (B) and the drive roll (A). A drive mechanism (D) utilizes a single drive clutch for i...
02/22/1994
5282586Apparatus for controlling tape tension in a magnetic tape device by controlling a reverse torque motor
A tension control apparatus for a tape player comprising a motor for driving a reel table on which a tape reel is installed, a tension detector which is pressed by a biasing force of a spring to contact with a tape extending from the tape reel, a sensor f...
02/01/1994
5277378Numerically controlled tape takeup system having device for automatic calibration of conversion formula
A tape takeup system includes a tensiometer which outputs a numerical value which changes in proportion to the tension applied to the tape. The numerical value is converted into a value of tension according to a predetermined formula. The rotational torqu...
01/11/1994
5256944Motor speed control method and apparatus with drooping compensation independent of acceleration or deceleration current and time constant of motor
A speed control method and apparatus for a motor driven by output of a power conversion unit, wherein a first current command value is inputted to derive a drooping variable, a deviation between a detected speed value of the motor and a speed command valu...
10/26/1993
5248112Tape transport control system with a feedforward capstan drive to the reel motors
A feedforward circuit applies a capstan drive current, or its equivalent, to the reel tension servo circuits whose associated reels are transporting the tape. The additional drive current to the reel drive motors increases the rotational velocity of the r...
09/28/1993
5222684Tape driving apparatus for tape medium record reproducing apparatus
A tape driving apparatus includes both supply and takeup reel diameter detectors so as to compute the inertia of both the reels, wherein the acceleration/deceleration torque information spent in the acceleration/deceleration of the take-up reel is detecte...
06/29/1993
5221879Method and apparatus for winding a cord continuously in dip treating apparatus
The invention discloses a method and an apparatus for winding a cord continuously. A rotation of a winding bobbin around which a cord to be a tension member of a belt, is wound and detected directly or indirectly. A cord is forwarded in an axial direction...
06/22/1993
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