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Document Title |
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7765978 |
Differential pressure sensor for fuel delivery systems
A differential pressure sensor apparatus for use in a fuel delivery system measures the differential pressure of the fuel between a point immediately upstream and a point immediately downstream of...
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6917171 |
Control device and method of stopping spindle motor of an optical disc system
A control device and a method of stopping the spindle motor or an optical disc system. The control device primarily includes an optical disc control chip, a motor driving circuit and a spindle...
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5412298 |
Motor control circuit having series or compound excitation during starting and shunt excitation during normal running
A motor control circuit provides series or compound excitation during starting and shunt excitation during normal running. A switch responsive to the motor speed, the armature current, the armature...
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4413215 |
Marine trim and tilt positioning system
A reversible motor is coupled to the stern leg of a watercraft for angulating the leg up and down through a trim and tilt range. A manually settable device provides a voltage signal corresponding...
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4406979 |
Fail-safe system for pulse-controlled three-terminal d.c. motor
A pulse control circuit for a d.c. series motor having an armature and two oppositely-wound field windings, comprises a contactor in series with the motor, two main thyristors each connected in...
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4386303 |
D.C. Motor system for a gatling gun
A feature of this invention is the provision of a reversible, D.C. shunt field motor having an armature and two separate field windings, each field winding being capable of producing rated field...
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4384240 |
Regenerative braking system for three-terminal d.c. motor
A pulse control circuit for a three-terminal d.c. series motor having an armature and two oppositely-wound field windings comprises a respective main thyristor in series with each field winding,...
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4371821 |
Electromagnetic motor rotatable in either direction
An electromagnetic stepping motor has a stator with an armature having the shape of an isosceles trapezoid the base of which is interrupted by a central gap and which is provided with three pole...
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4196375 |
A.C. tape reel servo
A linear servo circuit for A.C. motors is disclosed. The servo circuitry is used in a magnetic tape transport to control the motor which operates a tape reel on which the magnetic tape is stored....
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4146826 |
GTO bi-directional motor control circuit
Gate-turn-off silicon controlled rectifiers (GTO's) are selectively rendered conductive to control the direction of rotation of a bi-directional motor. To this end a digital logic network is...
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4044286 |
Control circuit for hospital bed
Beds, such as hospital beds, in which at least some portion of the bed is movably actuated by an electric motor (or motors) are provided with a control circuit to determine proper energization of...
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3896355 |
Self-powered thyristor trigger circuit
A power control circuit includes first and second triacs each having a pair of load terminals connected across a pair of alternating current supply terminals in series with an individually...
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3727118 |
CONTACTLESS REVERSIBLE DEVICE IN AN ELECTRIC CAR
A contactless reversible device in an electric car in which an armature of a direct current electric motor is connected to two series field coils wound in opposite directions. A blocking diode is...
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3667020 |
SPEED CONTROL APPARATUS FOR MOTORCAR ENGINE
An internal combustion engine of a vehicle is controlled in its speed of operation by an electric motor which is coupled to the throttle valve of the engine via an electromagnetic clutch. Speed...
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3644811 |
POWER WINDOW PULLDOWN CIRCUIT
Power window apparatus for opening and closing a window in accordance with the setting of a selectively operable switch. Upon placement of the switch in a window opening setting a window drive...
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3624473 |
CONTROL CIRCUIT FOR POWER WINDOW REGULATOR
Apparatus for opening and closing a window in accordance with a manually operated switch. A reversible electric motor having first and second field windings and an armature drivably connected to...
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3586943 |
TORCH OSCILLATING SYSTEM
A solid-state torch oscillating system for controllably reciprocating the torch about an adjustable reference position in a direction transverse to the direction of welding. The system includes a...
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3581174 |
AUTOMATIC REVERSING CIRCUIT FOR A WINDOW REGULATOR MOTOR CONTROL SYSTEM
A window regulator motor control system for a drive motor operative to open and close a window includes an automatic reversing circuit incorporating an overload current relay and a reversing relay...
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3533383 |
VEHICLE SPEED CONTROL SYSTEM
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3519907 |
REVERSIBLE DRIVE SYSTEM
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3488568 |
MULTIPOSITION CONTROL MOTOR
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3553546 |
PULSE CONTROL NEUTRALIZATION SYSTEM
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3474318 |
DIRECT CURRENT MOTOR
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3457485 |
POWER AMPLIFIER CONTROL SYSTEM
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3439246 |
BI-DIRECTIONAL PROPORTIONAL SERVO MOTOR CONTROL SYSTEM
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3405402 |
Synchronized incremental drive for magnetic tape recorder-reproducer
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3391320 |
Automatic throttle control system employing a logic gate circuit
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3302090 |
D. c. motor drive circuit
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3262038 |
Windshield wiper mechanism
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3253203 |
Motor braking circuit
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3231806 |
Electric motor control
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3230436 |
Motor speed reducer
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3191113 |
Systems for supplying direct-current pulses to a load particularly a seriesmotor
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3179865 |
Self-balancing servo system with super-imposed alternating current for reducing static friction
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3175145 |
Motive means for electrically controlling distance between a body and object
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3167701 |
Washing machine provided with motor reversing means
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3083327 |
Regulated control system
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3080727 |
Refrigeration defrosting
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3080514 |
Remote control switching system
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3078399 |
Voltage regulating servomechanism
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3045626 |
Depth steering synchro assembly
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3040851 |
Multiple unit motor control circuit
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3021474 |
Magnetic amplifier control apparatus
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2995101 |
Steering apparatus for torpedoes
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2937327 |
Pulsing methods and apparatus for the control of movable members
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2923872 |
Three wire reversible field shunt motor
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2922100 |
Wave energy translating system
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2913651 |
Control system for a reversible motor
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2910637 |
Control devices having a phase discriminator
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2908852 |
Multiple unit hump control
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