Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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 |
| 4354602 | Device for inspecting the external appearance of solid medicine A device for inspecting the external appearance of solid medicine having a solid medicine supplying section, a first drum-shaped conveying section for conveying solid medicines supplied by the solid medicine supplying section, at equal intervals so that o... | 10/19/1982 |
| 4302588 | Carbostyril compounds Carbostyril compounds represented by the formula (I): ##STR1## wherein R1 represents a hydrogen atom or an alkyl group; R2 represents a hydrogen atom, an alkyl group or a phenylalkyl group; R3 represents a hydrogen at... | 11/24/1981 |
| 4297195 | Electrode for use in electrolysis and process for production thereof An electrode for use in the electrolysis of an aqueous solution of a metal halide, the electrode comprising an electrically conductive substrate and, formed thereon, a coating comprising (1) 50 to 95 mole % of platinum and (2)(a) 5 to 50 mole % of tin oxide, o... | 10/27/1981 |
| 4297436 | Method for producing a multilayer printing plate A method for producing a multilayer printing plate comprising image-wise exposing and developing a light-sensitive printing plate material which comprises a support having an oleophilic surface having a hydrophilic metal layer thereon, the hydrophilic met... | 10/27/1981 |
| 4293945 | Multichannel correlation receiver for determining depolarization of signals along signal propagation paths A multichannel correlation receiver at an earth station is provided for determining the depolarization effects of atmospheric conditions on satellite communications. The receiver provides a first co-polarized signal and a second, relatively weak, cross-po... | 10/06/1981 |
| 4293951 | Method and apparatus for encoding/decoding a convolutional code to a periodic convolutional code block In a method and apparatus for convolutionally encoding a finite length digital data bit stream, the information samples arriving at the output of each encoder shift register are fed back to its input to simulate an infinite periodic data bit stream. Recir... | 10/06/1981 |
| 4293577 | Preservable baked pastry product, substantially free from sucrose and sweetened with fructose Baked pastry product is obtained with the use of crystalline fructose and consists of a wheat flour-based, cellular matrix which is soft, leavened under baking conditions, and of a moisture content of 17 to 22% by weight. The starting dough is rich in wat... | 10/06/1981 |
| 4291630 | Machine for extracting centrifuged pipe An extractor carriage is furnished on each side with an elbow bracket projecting towards its lower portion. To each of these brackets is attached the end of a cable which moves the carriage in its forward direction towards the centrifuging machine. Each c... | 09/29/1981 |
| 4291647 | Device for distributing liquid in given doses for a machine feeding as desired young suckling mammals The device comprises a syphon which connects a reservoir to a collecting recipient. The reservoir is supplied with liquid through a valve. A tube extends the reservoir upwardly and carries a detector which checks the level situated just above the syphon. ... | 09/29/1981 |
| 4292075 | Slow fade inocculant and a process for the inocculation of melted cast iron A slow fade cast iron inocculant is made up of (a) a silicon-containing matrix of iron silicon alloys and having a crystal structure, (b) compounds, present in the matrix crystal structure, of high-melting point calcium aluminum silicates, generally in the for... | 09/29/1981 |
| 4290870 | Photopolymerizable compositions A photopolymerizable composition comprising (1) an addition-polymerizable compound having at least one ethylenically unsaturated double bond and (2) a photopolymerization initiator as essential components, the improvement which comprises the photopolymeri... | 09/22/1981 |
| 4289883 | Carbostyril compounds Carbostyril compounds represented by the formula (I) ##STR1## wherein R1 represents a hydrogen atom, an alkyl group or a phenylalkyl group, R2 represents an alkenyl group, an alkoxyalkyl group, a hydroxyalkyl group, a carboxyalk... | 09/15/1981 |
| 4290132 | Focus servo device for use in an optical information read-out device In a focus servo apparatus for an optical type information read-out system having a light source, a condenser lens for focusing light from the light source on a recording surface of a recording medium and for focusing light reflected by the surface and co... | 09/15/1981 |
| 4288717 | Thermionic cathode apparatus A thermionic cathode includes an electron emitting tip, lanthanum hexaboride tip supporting heaters in close contact with both sides of the tip and supporting the tip, and elastic electroconductive members in pressure contact with outer surfaces of the ti... | 09/08/1981 |
| 4288678 | Apparatus for treating metal workpieces with laser radiation Apparatus for treating a metal workpiece includes a laser radiation generator arranged to generate and focus a laser beam onto a workpiece, and a part-spherical mirror so positioned as to refocus onto said workpiece the radiation reflected therefrom. The ... | 09/08/1981 |
| 4288664 | Neutralization signal developing device for an echo suppressor A device for developing a neutralization signal for an echo suppressor is required for the transmission of data over a telephone line having four-wire circuits. Each transmission of data is preceded by an identification signal at a given frequency. An inp... | 09/08/1981 |
| 4288532 | Color photographic materials containing cyan color-forming couplers A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, said photographic light-sensitive material containing at least one cyan color-forming coupler represented by the fol... | 09/08/1981 |
| 4288774 | Gas detector A gas detector including a gas sensitive element that provides an electrical resistance which varies with the type of gas detected and lead wires for conducting the electrical signal from the gas sensitive element. A porcelain tube supports the gas sensit... | 09/08/1981 |
| 4287551 | Elevator traction machine An elevator traction machine including a main rope, a traction sheave, a DC motor controlled by a thyristor Leonard system, a brake wheel, bearings of motor shaft and a machine beam. The motor shaft is grounded through first grounding circuit including a ... | 09/01/1981 |
| 4287413 | Automatic focus servomechanism in optical information reading device A focus servo apparatus for an optical information reading system is disclosed, which includes an optical system for a light from an information carrying surface of a recording medium composed of a condenser lens, a cylindrical lens and a light receiving ... | 09/01/1981 |
| 4287390 | Power amplifier apparatus having over-current protection function A power amplifier having first and second amplifiers each including an output stage consisting of series connections of collector-emitter paths of first and second output transistors connected between power supply terminals is disclosed. Each first and se... | 09/01/1981 |
| 4287577 | Interleaved TDMA terrestrial interface buffer A common memory is used for asynchronous interleaved read and write operations. TDMA data compression and expansion is performed without ping-pong memories and elastic buffering is also possible. A buffer reset method is used to automatically slip a fixed... | 09/01/1981 |
| 4286327 | Apparatus for near infrared quantitative analysis An apparatus for near infrared quantitative analysis with an infrared emitting diode (IRED) source utilizes narrow bandpass filters and silicon detectors to provide highly accurate and inexpensive measurement. A narrow bandpass filter in the light path of... | 08/25/1981 |
| 4286301 | H.V. current cut-out circuit The invention relates to a current cut-out circuit for a high-voltage electric installation, a current source being located on an input side and an earth fault possibly occurring on its output side. The circuit is characterized in that between the input a... | 08/25/1981 |
| 4286299 | Magnetic head assembly for recording or reproducing vertically magnetized records A magnetic head assembly for recording and playing back information on a recording medium in a vertically magnetized mode. Main and auxiliary heads are provided opposite one another with the recording medium passing therebetween. The main head includes a ... | 08/25/1981 |
| 4286284 | Color television signal decoding device Color decoding device for signals emitted by an NTSC source for the purpose of coding in any system, characterized by the use of a shifter operating at a reference frequency receiving signals in series and transmitting 4 parallel bits to a carrier which s... | 08/25/1981 |
| 4286281 | Video format signal recording and reproducing device A video format signal recording and reproducing device in which an identification signal is inserted into each frame of the video format signal for identifying whether the corresponding data is video or audio data. The identification signal may further be... | 08/25/1981 |
| 4286115 | System for recognizing words continuously spoken according to a format A continuous speech recognition system utilizes a format memory (14) which specifies a sequence of word sets and a plurality of words, or reference patterns, which may be included in each word set. The input pattern sequence is divided into all possible p... | 08/25/1981 |
| 4286219 | High resolution frequency synthesizer A programmable frequency source is used to synthesize a wide range of frequencies in small increments. A master oscillator and a single programmable divider are used. Each selected frequency possesses a phase jitter, predictable and a function of the mast... | 08/25/1981 |
| 4286147 | In-focus detecting device A focus lens protecting and in-focus detecting device has light receiving circuit and a comparator for comparing the output of said light receiving elements with a reference potential. A switch network is controlled by the output of the comparator to supp... | 08/25/1981 |
| 4285062 | Digital multi-level multi-phase modulation communication system A digital multi-level multi-phase modulation system utilizes quaternary differential encoding and decoding of only the first two of N digital signal trains. A decision circuit is used to examine the frame pulses in one of the first two signal trains and i... | 08/18/1981 |
| 4285044 | Digital generator for producing a sinewave A digital sinewave generator can be used in digital equipment, e.g. instead of a local oscillator for modulation/demodulation of signals. If there is no simple relationship between sampling rate and the frequency of the sinewave, successive sample values ... | 08/18/1981 |
| 4285012 | Light beam scanner A light beam scanner having an optical deflector which can repeatedly scan one surface to be scanned in a predetermined direction with a light beam and can start each scan at a desired time instant. A drive mechanism moves the surface to be scanned, in a ... | 08/18/1981 |
| 4284965 | Tone control device A tone control device for an audio equipment comprises a first mixer amplifier, at least one second mixer, a third mixer and at least one band rejection filter, which are operatively engaged with each other such that a center frequency, Q value and gain t... | 08/18/1981 |
| 4284892 | Method and device for the automatic reading of the irradiation dose of a portable dosimeter A method for the automatic reading of the radiation dose of a portable dosimeter with an ionization chamber provided with a capacitor C1, and a device for carrying out said method, said device comprising means for measuring the value of the ion... | 08/18/1981 |
| 4284717 | Silver halide photographic emulsion A silver halide photographic emulsion containing silver halide grains formed in the presence of a silver halide solvent of the formula (I): ##STR1## wherein R1, R2, R3 and R4 are each a subtituted or unsubs... | 08/18/1981 |
| 4284039 | Pressure regulator for injection systems for internal combustion engines The pressure regulator keeping a constant difference between the fuel pressure supplied to the injectors and the fuel pressure in the intake manifold of an internal combustion engine, comprises a pressure sensitive diaphragm associated with closure means ... | 08/18/1981 |
| 4283830 | Method and apparatus of monitoring the screwing home of a threaded element by a power tool In order to determine whether the screwing home of a threaded element, such as a screw, by a power tool has been acceptably executed, the number of revolutions undergone by the threaded element during the screwing operation is measured as a function of ti... | 08/18/1981 |
| 4284968 | Adjustable electromagnetic tripping mechanism for a circuit-breaker An adjustable electromagnetic tripping mechanism for a circuit-breaker, includes in each pole, a fixed magnetic circuit excited by the current passing through the said pole. A movable magnetic member is held by the force of a return spring against a stop ... | 08/18/1981 |
| 4283793 | Muting signal generation circuit for an FM receiver An improved muting signal generation circuit of an FM receiver of the type in which the deviation of an FM detection signal relative to a predetermined level is detected. When the deviation of the FM detected signal is above or below a predetermined value... | 08/11/1981 |
