Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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 |
| 5253591 | High speed maglev design A propulsion and stabilization system for an inductive repulsion type magnetically levitated vehicle which is propelled and suspended by a system which includes dividing the superconducting magnets into two types: a strong field magnet which is located ve... | 10/19/1993 |
| 5253592 | Magnetic levitation configuration incorporating levitation, guidance and linear synchronous motor A propulsion and suspension system for an inductive repulsion type magnetically levitated vehicle which is propelled and suspended by a system which includes propulsion windings which form a linear synchronous motor and conductive guideways, adjacent to t... | 10/19/1993 |
| 5239563 | Plasma momentum meter for momentum flux measurements Invention comprises an instrument in which momentum flux onto a biasable target plate is transferred via a suspended quartz tube onto a sensitive force transducer--a capacitance-type pressure gauge. The transducer is protected from thermal damage, arcing ... | 08/24/1993 |
| 5223207 | Expert system for online surveillance of nuclear reactor coolant pumps An expert system for online surveillance of nuclear reactor coolant pumps. This system provides a means for early detection of pump or sensor degradation. Degradation is determined through the use of a statistical analysis technique, sequential probabilit... | 06/29/1993 |
| 5218346 | Low volume flow meter The low flow monitor provides a means for determining if a fluid flow meets a minimum threshold level of flow. The low flow monitor operates with a minimum of intrusion by the flow detection device into the flow. The electrical portion of the monitor is e... | 06/08/1993 |
| 5217304 | Electrical network method for the thermal or structural characterization of a conducting material sample or structure A method for modeling a conducting material sample or structure system, as an electrical network of resistances in which each resistance of the network is representative of a specific physical region of the system. The method encompasses measuring a resis... | 06/08/1993 |
| 5153502 | Low noise charge ramp electrometer An electrometer capable of measuring small currents without the use of a feedback resistor which tends to contribute a large noise factor to the measured data. The electrometer eliminates the feedback resistor through the use of a feedback capacitor locat... | 10/06/1992 |
| 5116693 | Unique system of FE/PD for magneto-optical recording and magnetic switching devices A high density magneto-optical information storage medium utilizing the properties of an ultrathin iron film on a palladium substrate. The present invention comprises a magneto-optical medium capable of thermal and magnetic stability and capable of posses... | 05/26/1992 |
| 5117440 | Digital quadrature phase detection A system for detecting the phase of a frequency of phase modulated signal that includes digital quadrature sampling of the frequency or phase modulated signal at two times that are one quarter of a cycle of a reference signal apart, determination of the a... | 05/26/1992 |
| 5106105 | Rotary kiln seal A rotary seal used to prevent the escape of contaminates from a rotating kiln incinerator. The rotating seal combines a rotating disc plate which is attached to the rotating kiln shell and four sets of non-rotating carbon seal bars housed in a primary and... | 04/21/1992 |
| 5103161 | Stripline fast faraday cup for measuring GHz structure of ion beams The Stripline Fast Faraday Cup is a device which is used to quantitatively and qualitatively measure gigahertz time structure characteristics of ion beams with energies up to at least 30 Mev per nucleon. A stripline geometry is employed in conjunction wit... | 04/07/1992 |
| 5080693 | Tritium monitor and collection system This system measures tritium on-line and collects tritium from a flowing inert gas stream. It separates the tritium from other non-hydrogen isotope contaminating gases, whether radioactive or not. The collecting portion of the system is constructed of var... | 01/14/1992 |
| 5051996 | Built-in-test by signature inspection (bitsi) A system and method for fault detection for electronic circuits. A stimulus generator sends a signal to the input of the circuit under test. Signature inspection logic compares the resultant signal from test nodes on the circuit to an expected signal. If ... | 09/24/1991 |
| 5048969 | Piezoelectric measurement of laser power A method for measuring the energy of individual laser pulses or a series of laser pulses by reading the output of a piezoelectric (PZ) transducer which has received a known fraction of the total laser pulse beam. An apparatus is disclosed that reduces the... | 09/17/1991 |
| 5045793 | Toroids as NMR detectors in metal pressure probes and in flow systems A nuclear magnetic resonance probe to measure the properties of a sample under high pressure conditions. The apparatus employs a free standing, elongated toroidal coil as the RF transmitter and receiver.... | 09/03/1991 |
| 5025391 | Expert overseer for mass spectrometer system An expert overseer for the operation and real-time management of a mass spectrometer and associated laboratory equipment. The overseer is a computer-based expert diagnostic system implemented on a computer separate from the dedicated computer used to cont... | 06/18/1991 |
| 4995260 | Nondestructive material characterization A method and apparatus for nondestructive material characterization, such as identification of material flaws or defects, material thickness or uniformity and material properties such as acoustic velocity. The apparatus comprises a pulsed laser used to ex... | 02/26/1991 |
| 4996531 | Digital optical conversion module A digital optical conversion module used to convert an analog signal to a computer compatible digital signal including a voltage-to-frequency converter, frequency offset response circuitry, and an electrical-to-optical converter. Also used in conjunction ... | 02/26/1991 |
| 4987412 | Method and apparatus for the simultaneous display and correlation of independently generated images An apparatus and method for location by location correlation of multiple images from Non-Destructive Evaluation (NDE) and other sources. Multiple images of a material specimen are displayed on one or more monitors of an interactive graphics system. Specim... | 01/22/1991 |
