Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 5500580 | Integrated compliance servovalve An integrated compliance electrohydraulic servovalve system connected to a load such as a simulated living being to provide more realistic movement thereto. The system includes a pressure transducer for sensing the pressure appearing at the output of the ... | 03/19/1996 |
| 4555757 | Interface system for hybrid control loops A system for interfacing a digital computer with an analog gimbal control loop rate integrating gyro for controlling the movement of inner and outer gimbaled elements is disclosed. The purpose of the interface system is to permit an increase in the agilit... | 11/26/1985 |
| 4387624 | Device for increasing the tracking accuracy of an aiming system The invention relates to a device for increasing the tracking accuracy of an aiming system for a gun or the like which includes a gun servo. The gun servo comprises a special stabilizing and accuracy-increasing network (20) which comprises one or a plural... | 06/14/1983 |
| 4325013 | Electrical tracer control system utilizing sine wave resolution A control for a profiling machining tool, and a method for controlling such a tool. The machine tool includes a sensing head which moves along a template or pattern to produce a signal that causes motors relatively to shift a cutting tool and a workpiece ... | 04/13/1982 |
| 4298833 | Apparatus for damping operator induced oscillations of a controlled system Apparatus for damping operator induced oscillations of a controlled system responding to an operator controlled signal (DEP) utilizing a lag-lead filter (14) for frequency and amplitude estimation of the control input, and a rectification and smoothing fi... | 11/03/1981 |
| 4283665 | Method and apparatus for eliminating ripple component from motor control loop In a motor control circuit, a rotational speed detection signal containing a ripple component superimposed on a d.c. component is applied to both a low pass filter/phase lagging circuit and to a phase leading circuit, the output signals of which have a ph... | 08/11/1981 |
| 4221995 | Linear motor drive system for continuous-path closed-loop position control of an object A precision numerical controlled servo-positioning system is provided for continuous closed-loop position control of a machine slide or platform driven by a linear-induction motor. The system utilizes filtered velocity feedback to provide system stability... | 09/09/1980 |
| 4184109 | Position servo loop for robot or automatic machine A nonlinear servo compensator for insertion in the position servo loop of a robot or automatic machine comprising a direct path with an operational amplifier and a second amplifier for summing the direct signal and its derivative; and a shunt path with an... | 01/15/1980 |
| 4128795 | Device for damping the critical frequencies of a rotor suspended by a radial electromagnetic bearing A device is disclosed for damping the critical frequencies of a rotor suspended by a radial electromagnetic bearing which has means associated therewith for detecting the radial position of the rotor, comprising a servo-circuit for connection between the ... | 12/05/1978 |
