Celebrity Inventors
Actress Jamie Lee Curtis is a patented inventor - she created a diaper equipped with a premoistened baby wipe. And that's no act!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4864507 | Method and apparatus for process manufacture control A digital data processing apparatus for manufacturing process control includes input elements for inputting digital signals representative resource elements consumed in a manufacturing process, resource elements produced by the manufacturing process and m... | 09/05/1989 |
| 4815342 | Method for modeling and building drill bits A method for modeling and building drill bits. An array of spatial coordinates representative of selected surface points on a drill bit body and on cutters mounted thereon is created. The array is used to calculate the position of each cutting surface rel... | 03/28/1989 |
| 4796194 | Real world modeling and control process A modeling and control process for distributed factories having fabrication sequences starts with a definition of how the factory actually operates, rather than a mathematical theory which ultimately leads to a definition of the plant operation. The proce... | 01/03/1989 |
| 4791548 | Discrete time control apparatus Under a transient condition, a control variable is detected at each sampling interval, and operation on a controlled system is effected in a binary switching mode at each sampling interval. Parameters of a model for the controlled system are estimated on ... | 12/13/1988 |
| 4773021 | Adaptive model-based pressure control and method of resin cure Composites such as graphite reinforced PMR-15 resin are cured in a heated press by following a temperature schedule and changing from low to high pressure after the start of resin cross linking. A pressure control and method to time application of high pr... | 09/20/1988 |
| 4770843 | Controlling fuel assembly stability in a boiling water reactor A method and apparatus for controlling the stability of a boiling water reactor using a digital computer to calculate on-line, from distributed steady state values of only power, flow, enthalpy and pressure; a stability index for selected fuel assemblies ... | 09/13/1988 |
| 4769766 | Robust model reference controller A robust model reference controller which supplies manipulated variables for controlling a multi-input multi-output process of the type which may not be modelled perfectly consists of a pre-compensator, a diagonal filter, and a post-compensator. The input... | 09/06/1988 |
| 4758943 | Method and an apparatus for automatically tuning a process regulator Method for adjusting the setting of a digital process regulator on the basis of the result obtained from a simple relay feedback experiment. When an adjustment of the regulator setting is to be made, the relay feedback is connected in the control feedback... | 07/19/1988 |
| 4751443 | Servo simulator A servo system simulator utilizing an electronic equivalent of the servomotor to drive a programmable electronic load which mimics the actual load encountered by the servo system simulated.... | 06/14/1988 |
| 4740885 | Method for monitoring the track generated by the control of the drives of computer controlled machine tool or an industrial robot In a computer controlled machine tool, the actual tracks obtained from the reference values are simulated by means of system models of the drive circuits for reducing contour errors, and an excessive deviation between the reference and the actual track is... | 04/26/1988 |
| 4736316 | Minimum time, optimizing and stabilizing multivariable control method and system using a constraint associated control code In accordance with the present invention, a constraint dependent control method and system for a large scale refinery, chemical process or the like, is provided that allows on-line optimization of one and preferably two plant inputs without need for optim... | 04/05/1988 |
| 4707780 | Method and apparatus for reducing track errors in computer controlled machine tools or industrial robots In a computer-controlled machine tool, an auxiliary filter is inserted into the reference value channel of the drive control circuit, which filter has a transfer function approximately the inverse of that of the corresponding drive control circuit.... | 11/17/1987 |
| 4674029 | Open-loop control system and method utilizing control function based on equivalent closed-loop linear control system An open-loop system for controlling a plant, including a sampling circuit for providing an actuating signal as a series of impulse signals, and a computer for providing a control signal to operate the plant in response to the actuating signal in accordanc... | 06/16/1987 |
| 4663703 | Predictive model reference adaptive controller Apparatus and method for controlling the output of a dynamic system which is susceptible to changing dynamic characteristics. The desired present and future outputs of the system are applied to a predictor which determines the inputs to a model reference ... | 05/05/1987 |
| 4641235 | Process control apparatus with process dependent switching between process control modes The process control apparatus according to the present invention is adapted to control the process automatically in compliance with the state of the process characteristics. In the process control apparatus, when the process characteristics are found to b... | 02/03/1987 |
| 4639853 | Time-discrete adaptive switching on-off controller The present invention relates to an arrangement for the discrete-time adaptive on-off switching control of a continuous-time process with a binary switching actuator, which uses for the determination of the on-off actuating signal a prediction of a proces... | 01/27/1987 |
| 4628462 | Multiplane optimization method and apparatus for cogeneration of steam and power In a steam and power cogeneration system optimization results for steam flow and power are calculated off-line recurrently based on actual demand and control is effected on a multiplane basis upon selection of a new plane of control defined by a new statu... | 12/09/1986 |
| 4527231 | Method for identifying the model of a thermal enclosure and application to regulation of thermal enclosure From a measurement of the response of a thermal enclosure to an action, a set of coefficients representative of the pulsed response of the enclosure as a function of the operating temperature is elaborated by means of an algorithm, each pulsed response is... | 07/02/1985 |
| 4494207 | Dual turbine controller Primary and secondary controllers both receive independent digital representations of shaft speed. Only one of the outputs of the two controllers is used. In order to detect a fault and isolate it to one of the two controllers, comparison is performed on ... | 01/15/1985 |
| 4494208 | Bumpless switching of valve drive in a turbine control system Outputs of two independent controllers are available to control a valve actuator in a turbine control system. One of these valve drive signals is applied to the valve actuator while the other is applied to a termination. When a fault is detected in the ac... | 01/15/1985 |
| 4488148 | Combination switching and display electronic modular control unit This invention relates to a modular electronic unit which provides a combined switching and display function for controlling equipment of all kinds. The unit may be used alone to control equipment as desired, or several such units may be combined to contr... | 12/11/1984 |
| 4472770 | Self-optimizing method and machine The invention discloses method for self-optimizing, dynamically and in real time, a machine relative to a specific performance characteristic in response to variations on a prescribed number m of variables. This method comprises statistically designing a ... | 09/18/1984 |
| 4448736 | Continuous in-line melt flow rate control system The continuous in-line melt flow rate control system (40; 100) is coupled to a mixer/extruder system (10; 97) including a polymer, stabilizer and degradent feeding system (12, 16, 18; 102) supplying mixed materials to the inlet end of an extruder (24; 108... | 05/15/1984 |
| 4423594 | Adaptive self-correcting control system A control system for regulating a controlled device or process, such as a turbofan engine, produces independent multiple estimates of one or more controlled variables of the device or process by combining the signals from a plurality of feedback sensors, ... | 01/03/1984 |
| 4407013 | Self tuning of P-I-D controller by conversion of discrete time model identification parameters A P-I-D controller in a process control system is self tuned in response to discrete time model identification parameters which are converted to P-I-D form. Additionally, the P-I-D parameters are limited to prevent them from exceeding the controller's spe... | 09/27/1983 |
| 4407017 | Method and apparatus for controlling drilling process A method for controlling drilling process based on the use of an adaptive model of drilling process comprises two control modes of which one is a multicycle rock formation trial mode and the other mode is a drilling mode proper. During the first cycle of ... | 09/27/1983 |
| 4387421 | Optimal and adaptive control of variable speed AC motor drives A microprocessor based pulse-width modulated variable speed drive control system providing optimal switching angles based on minimizing r.m.s. current ripple. In addition, a closed loop double deadband control interacts with the optimal switching angles t... | 06/07/1983 |
| 4368509 | Self-optimizing machine and method The invention discloses method for self-optiming, in real time, a machine relative to a specific performance characteristic in response to variations on a prescribed number m of variables. This method comprises selecting a statistical design; repeatedly a... | 01/11/1983 |
| 4349869 | Dynamic matrix control method A method for controlling and optimizing the operation of a series of interdependent processes in a plant environment. Manipulation of one or more constrained process input variables is used to achieve feedforward/feedback control of one or more process ou... | 09/14/1982 |
| 4346433 | Process control A process control system is provided in which a process variable is compared to a set point for the process variable by a process controller with the results of the comparison being utilized to control the process in such a manner that the process variabl... | 08/24/1982 |
| 4257105 | Control of a cracking furnace The flow rate of a diluent fluid, such as steam, hydrogen or methane, to a cracking furnace is controlled so as to maintain a desired outlet velocity for the effluent flowing from the cracking furnace or to maintain a desired residence time for the feed s... | 03/17/1981 |
| 4236220 | Method for controlling the operation of nuclear electric generating plant An operation limit, a target value of the operation and an optimum rate of changing the operation state of a machine or apparatus of the plant are determined and stored in the memory device of an electronic computer. The computer processes the operation l... | 11/25/1980 |
| 4212135 | Method of adaptive control of a recessing cycle on a grinding machine and apparatus therefor Method of adaptive control of a recessing cycle on a grinding machine where the roughing is terminated, if the allowance drops to a value determined from the characteristic value derived from the preceeding grinding cycle and from the allowance at the beg... | 07/15/1980 |
| 4187548 | Simulation of catalytic cracking process The specific disclosure is directed to a catalytic cracking model wherein the reactant and product species are lumped according to molecular type and boiling range. The specific invariant lumping scheme includes paraffins, naphthenes, aromatic rings, and ... | 02/05/1980 |
| 4156835 | Servo-controlled mobility device A servo system includes a servo loop incorporating an articulated mechanical arm or other controllable element, resolved motion rate control apparatus or other coordinate transformation apparatus, and an accommodation branch. The transfer characteristics ... | 05/29/1979 |
| 4087568 | Method and apparatus for controlling a material treater at maximum throughput with air velocity control An improved process and apparatus are disclosed wherein the resin treatment of a web on a material treater is conducted at maximum throughput in response to especially impinging air velocity control in the dryer.... | 05/02/1978 |
| 3989937 | Interactive roll gap-reverse roll speed control of the applicator of a material treater An improved process and apparatus are disclosed wherein the resin solution treatment of a web on a material treater is conducted by interactively adjusting the roll gaps of a reverse roll applicator in conjunction with applicator roll speed changes.... | 11/02/1976 |
| 3940998 | Hog processing method A method and means for optimizing value obtainable from hog carcasses by utilizing particular hog measurements and current market values to determine cutting parameters. Ham and loin primal cuts from each carcass half are optimally produced in accordance ... | 03/02/1976 |
