Patents for G05B 9 - Safety arrangements (6,168)
02/1980
02/07/1980WO1980000198A1 Self-monitored control system of a process
01/1980
01/23/1980EP0007270A1 Self-supervising process control system
01/01/1980US4181849 Vital relay driver having controlled response time
11/1979
11/14/1979EP0005426A1 Simulated parameter control for gas turbine engine
07/1979
07/24/1979US4162526 Failsafe primary power control apparatus for systems using computer controlled power sequencing
07/24/1979US4162438 Dual servo automatic pilot with improved failure monitoring
07/24/1979US4161918 Rollover and wipe projective circuit for an electrical switching array
06/1979
06/26/1979US4159444 Fail operational dual electromechanical servo actuator for aircraft with model monitoring
05/1979
05/29/1979US4156397 Power limiting arrangement in a sewing machine
05/15/1979US4155116 Digital control system including built in test equipment
05/15/1979US4154395 Redundant signal circuit
05/08/1979US4153865 Dynamically compensated servo monitor
05/08/1979US4153198 Electro-hydraulic governor employing duplex digital controller system
04/1979
04/24/1979CA1053350A1 Process controller
04/10/1979US4149069 Safety circuit for a data processing system producing binary signals
04/03/1979CA1051995A1 Intrinsic safety barrier
03/1979
03/06/1979US4143415 Multiple control circuit with floating setpoint
03/06/1979US4143353 Apparatus for the supervision or correction of electrical signals
03/06/1979US4143329 Signal sampling circuit
02/1979
02/20/1979US4141066 Process control system with backup process controller
02/20/1979US4141065 Electric controller system with bumpless transfer
02/13/1979US4139872 Video signal reproducing apparatus with a track searching arrangement
01/1979
01/02/1979US4133027 Process control system with backup process controller
12/1978
12/19/1978US4130763 Machine guard installations
12/19/1978CA1044785A1 Automatic control system using error signal and integral and derivative thereof
11/1978
11/21/1978US4126061 Signal failure circuit for automatic transmissions
10/1978
10/17/1978US4120469 In-line actuator monitoring and control apparatus
09/1978
09/26/1978CA1039379A1 Apparatus for monitoring a redundant multi-channel analog system
09/19/1978US4115860 Plural load power controller with time-shared processor
08/1978
08/15/1978US4107654 Numerical control system having a position processing unit operated upon a power failure
08/15/1978US4107542 Time delayed relay sequencer and alarm reset for a gas turbine local maintenance controller
08/08/1978US4105900 Signal selection apparatus for redundant signal sources
08/08/1978US4105496 Method and device for electronic control with positive safety
06/1978
06/27/1978US4096989 Monitoring apparatus for redundant control systems
06/13/1978US4095123 Switch controller
06/06/1978US4093162 Train operation control apparatus
05/1978
05/30/1978US4092578 Elimination of voter caused deadzone
05/16/1978US4090065 System and method for operating a steam turbine with protection provisions for a valve positioning contingency
03/1978
03/28/1978US4081733 Automatic control system with integrator offset
03/14/1978US4078750 Speed-variable limits in fail-safe actuators
01/1978
01/31/1978US4071897 Power plant speed channel selection system
01/24/1978US4070609 Automatic control system
12/1977
12/13/1977US4063181 Positive safety control device
10/1977
10/18/1977US4054486 Nuclear reactor fail-safe unit having the function of control relay and current regulation
09/1977
09/27/1977US4051427 Supervisory system for detecting torsional oscillation in the shaft of a rotating electro-mechanical system
09/13/1977US4048483 Data handling systems
08/1977
08/30/1977US4045660 Method and apparatus for automatically realigning a machine element to a predetermined position after power interruption
07/1977
07/12/1977US4035787 Food temperature responsive control apparatus
06/1977
06/28/1977US4032757 Control apparatus
05/1977
05/31/1977US4027208 Interfacing circuit
05/24/1977US4025762 Reference signal circuit
04/1977
04/26/1977US4020488 Or control apparatus
04/12/1977US4017765 Short circuit protected electronic control system
04/05/1977US4015548 Distributed programmable control system
01/1977
01/11/1977US4003030 Electronic cash register
11/1976
11/16/1976US3992698 Fail-safe speed command signal decoder
10/1976
10/19/1976US3987351 System for arranging the operations and connections between a computer linked to a process and a control station connected to the computer
10/19/1976US3986372 Appliance programmer including a safety circuit
10/05/1976US3984665 Process controller
09/1976
09/28/1976US3983471 Voltage regulating system
09/07/1976US3979720 Apparatus for monitoring a redundant multi-channel analog system
08/1976
08/03/1976US3973170 Intrinsic safety barrier
07/1976
07/20/1976US3970864 Control arrangement fail-safe timing circuit
07/06/1976US3968489 Apparatus for monitoring the operation of heater controllers
06/1976
06/01/1976US3961270 Apparatus comprising a plurality of separate parts, and control apparatus for producing synchronizing control signals for said separate parts
05/1976
05/11/1976US3955359 Bearing temperature system failure detection apparatus suitable for use in power plants and like apparatus
03/1976
03/02/1976US3941031 Pneumatic controller for controlling the operation of an automatic machine
01/1976
01/13/1976US3932213 Actuation
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