| Patent No. | Patent Title: |
| 4401926 | Pulse controllers |
| 4271383 | DC Motor control circuit |
| 4247806 | Garage door opener |
| 4234833 | Door operator system using counter circuit for determining limit ... |
| 4224558 | Selectable servo ratio and dual speed control system for large ... |
| 4211931 | Electronic speed error signal processing circuit |
| 4196378 | Circuit for detecting a positive phase or an opposite phase in th... |
| 4195255 | Electronic brake for AC motors |
| 4189668 | D.C. motor snubbing |
| 4188569 | Control circuit for an electric vehicle traction motor |
| 4186333 | Circuit for the energy-conserving braking of a direct-current ... |
| 4182979 | D-C. electric torquing system |
| 4179646 | Control circuit for circuit breaker DC motor operator |
| 4177412 | Closed loop rotational speed control system having means for gene... |
| 4171505 | Fault detecting system for a control system |
| 4171506 | Control apparatus for an electric car |
| 4169242 | Resistor grid protector |
| 4168456 | Apparatus for controlling an electric motor for driving a cooling... |
| 4168455 | Motor speed control system |
| 4166240 | Control circuit for circuit breaker AC motor operator |
| 4165468 | Wind driven, high altitude power apparatus |
| 4164695 | Servo controlled tape indicating device |
| 4163182 | Actuating circuit for D.C. motor |
| 4162437 | Motor acceleration and starting torque control |
| 4162436 | Motor speed controller |
| 4158780 | Power generation systems in buoyant structures |
| 4156168 | Electric motor |
| 4155033 | Synchronous capstan drive system |
| 4152632 | D.C. motor speed control apparatus having both armature current r... |
| 4151450 | Protective means for feeder of machinery with DC-motor |
| 4150301 | Wind turbine |
| 4149116 | Motor speed control system |
| 4144482 | Dynamic brake circuit for motor |
| 4140954 | Curvature control |
| 4138631 | Drop wire circuit tester |
| 4136305 | Power converter control apparatus |
| 4135122 | Method and apparatus for heating electrical motors and like devic... |
| 4135121 | Variable-speed drive system with hydrostatic transmission and ele... |
| 4134024 | Method and apparatus for generating electricity from the flow of ... |
| 4134023 | Apparatus for use in the extraction of energy from waves on water |
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