Matches 51 - 100 out of 126 < 1 2 3 >


Match Document Document Title
3995243 Fault detection indicator  
A fault detection indicator comprises an electromagnetic core and coil assembly, a repulsion permanent magnet and two trip-latch permanent magnets. In addition, an indicator button may be employed...
3983520 Solenoid electromagnet having a wide, controlled stroke  
A solenoid electromagnet includes a movable core spaced from a fixed core, a spring urging the movable core away from the fixed core, an operation rod having a plurality of detent projections, a...
3970980 Rotary actuator having stationary armature and rotary field  
A rotary actuator provides rotation of its rotor over predetermined angles. The rotor is a cylindrical housing in which are cylindrically curved permanently magnetized poles spaced apart at their...
3895331 Latching solenoid  
A latching type magnetically operated solenoid is provided for controlling a valve, or other instrumentality, which does not require continuous current flow through the energizing coils to hold...
3895330 Bi-level solenoid holding device  
A solenoid device which is capable of suspending or supporting load devices at a first load level established mechanically and a second load level established electrically comprises a...
3889219 Solenoid actuator with magnetic latching  
It is known to use a radially-magnetised annular permanent magnet for magnetic latching in a moving armature electromagnetic actuator of the pulse-operated type. I provide a composite annular...
3855560 MULTI POSITION ROTARY DETENT DEVICE  
A multi position rotary detent device in which a plurality of detent positions are available with each position determined by discrete magnetic fields established between rotor pole pieces and...
3808571 SELF LOCKING SOLENOID  
A self locking solenoid is provided by this invention. The solenoid has a magnetizable member which is responsive to a magnetic field to provide translation action of the magnetizable member. A...
3799203 FLOATING DETENT FOR SPOOL VALVES  
A solenoid operated valve having a free floating sliding spool is provided with an improved detent device loosely caged in the body of the valve and slidably engaging the sliding spool to...
3775716 MAGNETIC ASSEMBLY HAVING LATCHING MEANS STORING ENERGY TO PRODUCE USEFUL WORK  
A magnetic device includes a means for producing a magnetic field associated with a first armature and a second armature each of which is associated with a corresponding helix volute spring that...
3772623 ELECTROMAGNETIC ACTUATOR ASSEMBLY  
A rotary solenoid has a movably mounted pole member which is positioned adjacent to the path of a rotatably mounted armature of the solenoid. The pole member is normally spring biased away from...
3761851 SECTOR MOTOR, DIRECT MOTION ROTARY ACTUATOR  
A two-pole armature located between two field poles provides a direct motion rotary actuator with high starting torque and angular rotation over substantially any angle angle than...
3735296 SEQUENCE RELAY  
A sequence relay includes a coil mounted on a frame. Current through the coil will drive an armature from a first position to a second position. Attached to the frame is a biased lifter which may...
3681727 MAGNETICALLY OPERABLE BLOCKING AND CONTROL DEVICE  
A magnetically operable blocking and control device, in which at least one of two permanent magnet means arranged in a housing has at least a portion movable selectively toward and away from the...
3671899 PERMANENT MAGNET DETENT MEANS FOR A ROTARY SOLENOID  
An electromagnetic rotary solenoid having a permanent magnet rotor and a plurality of selectable coils utilizes the combination of a permanent magnet and a coil for the no signal or detent...
3629754 MAGNETICALLY ACTUATED COUPLING  
A magnetically actuated coupling for transmitting linear forces and composed of a pair of coupling elements arranged in a magnetic field, which is preferably produced by an electromagnet having a...
3608586 FRICTION PADS FOR NO-SPRING MODEL DIRECTIONAL VALVES  
A solenoid-operated valve having a free-floating, sliding spool is provided with frictional detent pins radially urged inwardly by a C-shaped spring. The pins are mounted in a cartridge member...
3460079 POLARIZED ELECTROMAGNET  
3448420 SAFETY LOCK FOR ELECTRICALLY OPERATED RELAYS  
3421125 SOLENOID ACTUATED DEVICE  
3419739 Electromechanical actuator  
3401367 Magnetically latching type relay containing a flux limiting construction  
3387188 Magnetically latchable relay  
3376480 Analog storage device  
3358254 Electrically actuated release mechanism  
3346827 Solenoid with detent means  
3307131 Electromagnetic actuator with detent means  
3293580 Latching means for solenoid devices  
3289133 Latching assembly for a rotary electromagnetic device  
3281739 Sensitive latching relay  
3265941 Electromagnetic operator  
3260870 Magnetic detent mechanism  
3254660 Closure operator for valves  
3249822 Electromagnetic relays  
3244836 Latching relay  
3231791 Locking means for electromagnetic relays  
3213333 Time delay control device  
3213409 Condition selector apparatus  
3213334 Latching mechanism for circuit breakers  
3206656 Safety solenoid having a permanent magnet latching means  
3200707 Bomb arming solenoid  
3194356 Latch devices for electromagnetic brake mechanism  
3193736 Electromagnetic circuit for circuit breakers  
3185979 Electrical indicator device  
3168621 Remote dictation apparatus  
3164404 Automatic hold-open release  
3160796 Magnetic stick type relay having saturable core member  
3158796 Electromechanical actuators  
3156463 Card-advancing mechanism  
3153712 Overcurrent relay having contacts mounted independently of its armature  

Matches 51 - 100 out of 126 < 1 2 3 >