Electricity: Motive Power Systems Patents (Class 318)
- Adaptive or optimizing systems including "bang-bang" servos (Class 318/561)
- Time-sharing or multiplexing systems (Class 318/562)
- With protective or reliability increasing features (e.g., "fail-safe" systems) (Class 318/563)
- Program- or pattern-controlled systems (Class 318/567)
- Vehicular guidance systems with single axis control (Class 318/580)
- Multiple mode systems (Class 318/590)
- Pulse-width modulated power input to motor (e.g., "duty cycle" systems) (Class 318/599)
- Digital or numerical systems (Class 318/600)
- Frequency- or phase-modulated systems (Class 318/606)
- "Reset" systems (P.I.) (Class 318/609)
- With stabilizing features (e.g., anti-hunting, damping) (Class 318/611)
- Plural servomotors (Class 318/625)
- Limit or end-stop control (Class 318/626)
- "Feelback" systems (Class 318/628)
- Unwanted harmonic or voltage component elimination quadrature rejection systems (Class 318/629)
- Antibacklash systems (e.g., with unidirectional approach to balance) (Class 318/630)
- Antistatic friction features (e.g., "dither" voltage) (Class 318/631)
- With compensating features (Class 318/632)
- With signal-, voltage-, or current-limiting (Class 318/635)
- "Sampling" systems including miscellaneous "sampled data" control systems (Class 318/636)
- Analog computation (Class 318/637)
- With particular "error-detecting" means (Class 318/638)
- With particular motor control system responsive to the "actuating signal" (Class 318/671)
- Motors with diverse motions (e.g., reciprocating and rotary motors) (Class 318/35)
- Plural reciprocating or oscillating motors (Class 318/37)
- Plural linear-movement motors (Class 318/38)
- Work and feed motors (e.g., indexing) (Class 318/39)
- Motor biased against rotation (Class 318/40)
- Having electrical synchronizing interconnections (Class 318/41)
- Mechanically coupled in fixed ratio of movement (Class 318/45)
- Motors electrically connected in cascade or tandem (Class 318/49)
- Plural, diverse motor controls for different motors (Class 318/51)
- Slipping and/or racing control for electric motors (Class 318/52)
- Plural, diverse motor controls (Class 318/53)
- Motor-reversing (Class 318/65)
- Running-speed control (Class 318/66)
- Synchronizing or phasing control (Class 318/85)
- Braking (Class 318/86)
- Acceleration control (Class 318/90)
- Load control (Class 318/98)
- Starting and/or stopping (Class 318/101)
- Plural, diverse or diversely controlled sources of armature (or primary) supply (Class 318/105)
- Series-parallel connected motors (Class 318/111)
- Parallel connected motors (Class 318/112)
- Series connected motors (Class 318/113)
- Stopping after predetermined number of reciprocations or cycles (including single cycle) (Class 318/120)
- Having means to produce a progressing or traveling motor field flux (Class 318/121)
- Plural, diverse or diversely controlled motor windings (Class 318/122)
- Energizing winding circuit control (Class 318/126)
- Automatic generator control and/or with time-delay means (Class 318/141)
- Alternating-current-motor system (Class 318/148)
- With plural, diverse or diversely controlled generators (Class 318/149)
- With flywheel on generator or on motor (Class 318/150)
- Control of both the generator and the circuit to the motor (Class 318/151)
- Control of both the generator and the motor (Class 318/153)
- Plural, diverse or diversely actuated, generator control means (Class 318/156)
- Generator speed control (Class 318/157)
- Generator field circuit control (Class 318/158)
- Brushless motor closed-loop control (Class 318/400.01)
- Brushless motor open-loop control (Class 318/400.42)
- Hysteresis or reluctance motor systems (Class 318/701)
- Antihunting or damping (Class 318/702)
- Braking (Class 318/703)
- Pole changing motor winding circuits (Class 318/704)
- Synchronization systems (Class 318/705)
- Field winding circuits (Class 318/716)
- Armature winding circuits (Class 318/720)
- Repulsion start (Class 318/728)
- Power-factor control (Class 318/729)
- With plural separately movable rotors (Class 318/730)
- With voltage source connected to motor secondary (Class 318/731)
- Self-cascaded motor windings (Class 318/737)
- With commutated winding (Class 318/738)
- Reversing (Class 318/739)
- Braking (Class 318/757)
- Primary and secondary circuits (Class 318/766)
- Primary circuit control (Class 318/767)
- Secondary circuit control (Class 318/818)
- With relatively movable cooperating motor parts to control energized motor (Class 318/830)
- "Spotting" or adjustment of braking controller during coasting (Class 318/363)
- Automatic and/or with time-delay means (Class 318/364)
- Plural, diverse or diversely controlled braking means (Class 318/370)
- Friction braking (Class 318/372)
- "Plugging" or application of reverse power to motor (Class 318/373)
- Dynamic braking (Class 318/375)
- By auxiliary electric generator or by magnetic attraction or repulsion devices (Class 318/382)
- With nonautomatic control means (e.g., manual) (Class 318/446)
- Nonresponsive or less responsive for limited periods (Class 318/447)
- Anti-hunting (Class 318/448)
- With respect to a fixed standard, master or reference device (Class 318/449)
- Plural, diverse conditions or with time-delay means (Class 318/452)
- Rate-of-change of a condition (Class 318/456)
- Terminal voltage or counter-electromotive force of controlled motor (Class 318/459)
- Sound, supersonic vibration or mechanical vibration (Class 318/460)
- Speed or rate-of-movement (Class 318/461)
- Movement, position, or limit-of-travel (Class 318/466)
- Responsive to thermal conditions (Class 318/471)
- Motor load, armature or primary or secondary circuit current (Class 318/474)
- Electrical conditions in circuit other than controlled motor circuit (Class 318/478)
- Radiant energy (Class 318/480)
- Pressure in a fluid or granular material (Class 318/481)
- Level of fluid or granular material (Class 318/482)
- Moisture content or wetness (Class 318/483)
- Time or with time-delay means (Class 318/484)
- Responsive to stress in body or material (Class 318/488)
- Responsive to direction, inclination or angular position of bodies (Class 318/489)
- Plural, diverse or diversely controlled, armature or primary windings (Class 318/495)
- Plural sources of voltage (including counter e.m.f. cells) (Class 318/500)
- By shunting armature or primary winding (Class 318/501)
- Variable length or tapped armature winding (Class 318/502)
- Frequency or pulsation control (Class 318/503)
- Voltage control (Class 318/504)
- By means to space-discharge devices (Class 318/505)
- Impedance-controlled (Class 318/508)
- By armature or primary circuit-making and/or breaking (Class 318/519)
- Plural, diverse or diversely connected or controlled field windings (Class 318/523)
- Plural, diverse or diversely connected or controlled sources of field circuit voltage (Class 318/530)
- Variable length or tapped field winding (Class 318/531)
- By means of space-discharge device in field circuit (Class 318/532)
- Impedance-controlled (Class 318/533)
- By field circuit making and/or breaking (Class 318/536)
- With other motor control device (Class 318/544)
- Plural, diverse or diversely controlled controllers (Class 318/546)
- Plural control stations (Class 318/548)
- Return to "off", "starting" or "neutral" positions (Class 318/549)
- Knee- or foot-operated controllers (Class 318/551)
- Power-actuated controllers (Class 318/552)