Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 5068205 | Header mounted chemically sensitive ISFET and method of manufacture This invention provides a method for producing header mounted sensors, such as a chemically sensitive ISFET structures, which comprises steps which include providing a plurality of electrochemically sensitive ISFET sites on a semiconductor substrate with ... | 11/26/1991 |
| 5063392 | Color change system for multicolor strip chart recorders An improvement is provided for printer such as the dot matrix or thermal type, in which the printhead is stepped across the paper over a multicolor ribbon supplied from a pivotally mounted cartridge and transported through a plane between the line of trav... | 11/05/1991 |
| 4851104 | Instrument for potentiometric electrochemical measurements There is provided a system for measuring a selected ion in a solution so as to avoid noise pickup from AC parasitic currents and measurement offset from DC parasitic currents, such as are frequently found in pH measurements on low conductivity grounded so... | 07/25/1989 |
| 4831325 | Capacitance measuring circuit A variable capacitor, which may be a humidity sensitive capacitor, and a fixed reference capacitor are connected at a node. The node is clamped at a reference potential during a first phase of a two phase measuring cycle as the variable capacitor is charg... | 05/16/1989 |
| 4762571 | Expendable immersion device for combining an expendable immersion sensor and molten metal sampler There is provided an expendable device for use with a standard immersion sensor for a molten metal bath to simultaneously hold a standard immersion sampler in juxtaposition to the sensor when the sensor is in its protective sleeve at the end of a lance re... | 08/09/1988 |
| 4689736 | Distributed process control system A method and apparatus for carrying out the control of a process using a distributed process controller wherein each controller receives during consecutive time slots of a scan cycle inputs from the process representing measured values of process variable... | 08/25/1987 |
| 4683374 | Method and means for multiplexing optical sensors Apparatus for optically multiplexing the signals of several optical sensors when those sensors are of the type which utilize a single light input optical fiber for each sensor to send light to the sensor from a central monitoring station and a single sign... | 07/28/1987 |
| 4648274 | Photoelastic measuring transducer and accelerometer based thereon A photoelastic transducer is constructed with a photoelastic element receiving a 45° polarized light beam with a wave plate providing a 90° phase displacement in its orthogonal components. The element has reflective surface coatings to produce multiple ... | 03/10/1987 |
| 4642019 | Hydraulic control system and valve therefor A hydraulic control system is provided, including first and second bidirectional fluid actuated motors adapted to travel a predetermined amount in each direction. A directional control valve is placed in fluid communication with a supply of high pressure,... | 02/10/1987 |
| 4635503 | Bicycle sprocket drive assembly A bicycle sprocket drive which utilizes a crank having a number of splines and a sprocket having mating indentations or slots in its face. The splines and the mating radial slots have tapered driving faces. By forming the tapered slots into the front face... | 01/13/1987 |
| 4633421 | Method for transposing time measurements from one time frame to another A method for transposing the time of an event as read at a remote station with one clock to the time frame of another clock at a master station when the clocks are not synchronized and are of insufficient accuracy to provide measurements to within a few m... | 12/30/1986 |
| 4582951 | Holder assembly for molten metal immersion devices A device for immersion in a molten metal to determine a parameter of the molten metal including a parameter determining element and a first elongate section. The first elongate section is a replaceable section including a paper tube having a refractory co... | 04/15/1986 |
| 4581676 | Electrical contact coating for silicon pressure transducers An electrostatically bonded capacitive pressure measuring transducer constructed with a silicon diaphragm member sandwitched between a top silicon support plate and a bottom silicon support plate each of which has a via hole extending therethrough, a thin... | 04/08/1986 |
| 4572718 | Anti-rotation locking assembly An anti-rotation locking assembly is provided for preventing rotation of a surface such as in a housing member with respect to a threaded shaft as on a body to which the housing member is threadably mounted. There are provided two opposing flats or relief... | 02/25/1986 |
| 4569060 | FSK Coding method and apparatus involving multiples and submultiples of a given frequency A method for coding a data signal for transmission and reception which includes the steps of generating a prefix signal which is a train of pulses at a multiple or submultiple of a selected baseband frequency, then generating a data stream following said ... | 02/04/1986 |
| 4564882 | Humidity sensing element The structure consists of a substrate, a set of interdigitated electrodes deposited on the substrate surface. The electrode fingers have a period less than the substrate thickness. A first water permeable polymer film is deposited over the electrodes and ... | 01/14/1986 |
| 4542435 | Pressure transducer and mounting A capacitive pressure transducer whose diaphragm is formed of single crystal, highly doped silicon by etching in opposite sides the recesses which define the deflecting region of the diaphragm. This deflecting region serves as one electrode of the transdu... | 09/17/1985 |
| 4536820 | Electrical feedthrough means for pressure transducer A bulkhead feedthrough for capacitive pressure transducers including a feedthrough body portion welded in a cylindrical opening in a pressure receiving body in which the transducer is mounted. The feedthrough body provides a pressure seal for the transduc... | 08/20/1985 |
| 4531905 | Optimizing combustion air flow A method for optimizing combustion air flow to a furnace. As the air/fuel ratio changes or is periodically perturbated, the corresponding change in heat loss to the stack due to the change in the amount of combustibles in the flue gases is maintained equa... | 07/30/1985 |
| 4375333 | Microprocessor directed optical pyrometer A portable automatic disappearing filament optical pyrometer having low power demand incorporating a solid state line scanner as a sensing element is controlled by a microprocessor to perform a balance between the radiation from a target and a lamp filame... | 03/01/1983 |
| 4337434 | Compensator for slowly responding sensors A signal compensating network for use with a sensing element having different rates of response for increasing or decreasing sensed quantities includes a differentiating amplifier having different time constants for increasing and decreasing input signals... | 06/29/1982 |
| 4333352 | Injection-molded Doppler flowmeter transducer assembly A transducer housing assembly for an ultrasonic flowmeter made by an injection molding having a pair of pedestals for supporting the transducers at a specific angle while acoustically isolating the transducers from each other and providing an air backing ... | 06/08/1982 |
| 4280365 | Ultrasonic Doppler flowmeter with correction for vibratory signals at zero-flow conditions An ultrasonic Doppler flowmeter for measuring flowing fluid by reflection of sonic waves from particles in the fluid is provided with a discriminating circuit including a comparator amplifier connected to the received signal that produces a zero-flow outp... | 07/28/1981 |
| 4274284 | Expandable phase change detector device An expendable phase change detector device is provided with an initial coating on the twisted wire forming the thermocouple junction which is, in turn, covered by a refractory coating during the manufacture of the device. The initial coating responds to a... | 06/23/1981 |
| 4245914 | Sample cell window cleaning device Apparatus for wiping the optical window of a sample cell in a turbidimeter or other particle measuring instrument for analyzing a liquid sample. The wiping apparatus is operated by the pressure of the source of supply of the liquid sample and avoids the n... | 01/20/1981 |
| 4229230 | Expendable immersion thermocouple An expendable immersion thermocouple having a cup-shaped body member for supporting the thermocouple and providing a cavity into which a refractory cement is poured to secure the thermocouple in place. The refractory cement is nonhomogeneous and has a sur... | 10/21/1980 |
| 4208908 | Speed of sound compensation for Doppler flowmeter An ultrasonic Doppler flowmeter in which the transmitting and receiving transducers are located in a head that is secured to the outer surface of a pipe through which the fluid to be measured flows. The head includes a thermistor responding to the tempera... | 06/24/1980 |
| 4193063 | Differential capacitance measuring circuit The displacement of the diaphragm in a differential pressure sensor of the differential capacitor type produces an output signal substantially linearly related to the displacement. The capacitors are charged in parallel from a constant current source for ... | 03/11/1980 |
| 4183245 | Synchronous frequency-to-voltage converter for doppler apparatus An ultrasonic Doppler flowmeter is provided with a frequency-to-voltage converter comprising a pair of interconnected filp-flops triggered by the Doppler frequency and a submultiple of the transmission frequency which produces a series of output pulses ha... | 01/15/1980 |
| 4179309 | Means for assembling expendable immersion thermocouples An expendable immersion thermocouple having a ceramic body member and a plastic tailpiece for supporting the thermocouple and producing a cavity into which a refractory cement is poured to secure the thermocouple in place. The tailpiece is provided with a... | 12/18/1979 |
| 4163903 | Flame monitoring apparatus The apparatus includes a radiation gathering device having a narrow acceptance angle and mounted in a multiburner boiler to sight substantially across the discharge end of the burner nozzle. Radiation collected by the gathering device is transmitted by a ... | 08/07/1979 |
| 4111717 | Small-size high-performance radiation thermopile A thermopile type radiation detector for use in radiation pyrometry having small size and high performance in which the thermopiles are formed by evaporating the thermocouple leads onto a thin substrate together with a pattern distribution of thermocouple... | 09/05/1978 |
| 4099114 | Servo stop system A servo system is disclosed which produces a mechanical position varying in accordance with variations in an electrical input signal. The input signal is applied by an amplifying channel to one input of an error amplifier. The input signal amplifying chan... | 07/04/1978 |
| 4055723 | Heater support element for electric furnace A supporting means for a flexible graphite cloth heating element comprised of a conductive bar having a dovetail shaped slot and a mandrel shaped to fit within the slot and to hold a loop of the graphite cloth heating element therein.... | 10/25/1977 |
| 4050065 | Dual slope analog to digital converter with delay compensation An improved bi-polar dual slope analog to digital converter having an automatic zero offset correction circuit using a high gain D.C. amplifier inserted between the output of the integrating amplifier and the input of the comparator amplifier, having both... | 09/20/1977 |
| 4034610 | Differential pressure measuring device A differential pressure measuring device of the three diaphragm type is disclosed in which the measuring in diaphragm is isolated from the substance being measured by a pair of sealing diaphragms. The measuring diaphragm is included in a cell assembly tha... | 07/12/1977 |
