| Patent Number |
Title Of Patent |
Date Issued |
| 6234081 |
Shaped bridge slapper |
May 22, 2001 |
| A shaped bridge slapper having a pair of spaced conductive lands on a substrate; a bridge member between the spaced conductive lands, the bridge member having a curved shape and a cavity herein, and a flyer layer extending over the bridge member. |
| 6181084 |
Ballast circuit for high intensity discharge lamps |
January 30, 2001 |
| A ballast circuit for a high intensity discharge lamp includes a boost converter, responsive to a dc input voltage, for providing a boosted dc output voltage; a boost controller, responsive to the boosted dc output voltage, for driving the boost converter to maintain the boosted output |
| 5198816 |
General purpose system for digitizing an analog signal |
March 30, 1993 |
| A general purpose programmable optical analyzer employs a nonlinear gain at the input stage of an analog to digital converter in order to limit the number of bits used to resolve shot noise. |
| 5164066 |
Electrophoresis cassette system with apparatus and method for filling same |
November 17, 1992 |
| Apparatus for filling an electrophoresis cassette of the type having a gel layer between two glass plates. The filling system includes a filling manifold which is brought into abutment with the bottom edges of the glass plates. A rubber gasket provides a seal between the manifold and the |
| 5155666 |
Light beacon for marking tall obstructions |
October 13, 1992 |
| A light beacon for marking tall obstructions which may present a navigational hazard to air traffic comprises a transparent cover and a plurality of linear light sources, each having a central axis. The linear light sources are positioned within the transparent cover in a substantial |
| 4939482 |
Remote optical sensing device and method |
July 3, 1990 |
| A remote sensing system including a control module coupled to a remote device module via an optical fiber is disclosed. The device module includes circuitry for detecting changes in physical parameters and for transmitting data relating thereto back to the control module in serial fo |
| 4929329 |
Electrophoresis cassette system with apparatus and method for filling same |
May 29, 1990 |
| An electrophoresis cassette system which when used with a detector can automatically perform an analysis of radio-labelled molecules. The cassette system is easily assembled and may be reused. The cassette includes a new type of side spacer which incorporates nylon monofilament and w |
| 4919784 |
Electrophorresis cassette spacer |
April 24, 1990 |
| A spacer for an electrophoresis cassette of the type having front and rear plates, such as glass, with a gel material in the space between the plates in which electrophoresis separation is performed. The cassette includes a spacer between the plates in the form of a thin disk whose thick |
| 4845337 |
Ovenized oscillator assembly |
July 4, 1989 |
| An ovenized oscillator having a temperature sensitive section of an oscillator and a heater supported in a chamber within an enclosure having an insulating gas surrounding the oscillator section and heater. Insulating walls may be added within the chamber to reduce convective heat lo |
| 4823951 |
Retainer for holding a printed circuit card between spaced surfaces |
April 25, 1989 |
| A retainer is provided for holding a printed circuit card between spaced surfaces which comprises a plurality of wedge-shaped members mounted end-to-end on a rod, with at least select ones of those members being each urged in a corresponding transverse direction relating to the adjacent |
| 4721890 |
Power supply circuit for an alkali vapor spectral lamp |
January 26, 1988 |
| The output of an alkali vapor lamp for use in an optical pumping system is stabilized by use of a feedback circuit which regulates current flow from a power supply to an electronic power oscillator used to excite the alkali vapor lamp. Starting of the alkali vapor lamp is facilitated by |
| 4712722 |
Concurrent ultrasonic weld evaluation system |
December 15, 1987 |
| A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a sh |
| 4629333 |
Chilled mirror hygrometer with performance monitoring |
December 16, 1986 |
| A radiation source directs light at a mirror which reflects to a first photosensor. As a dew point is reached, scattered light is reflected to a second photosensor to indicate dew point. Rather than periodically interrupting operation to test reflectivity of the mirror or to perform a |
| 4494085 |
Miniaturized atomic frequency standard having both filter cell and absorption cell in resonator |
January 15, 1985 |
| An optical-physics package used in an atomic frequency standard is miniaturized and the performance thereof improved. The optical-physics package includes a microwave cavity in which is positioned a filter cell and an absorption cell, preferably located in close physical proximity to |
| 4492963 |
Method and apparatus for determining lane count error in a radio navigational system |
January 8, 1985 |
| A method and apparatus for determining lane count error in a conventional navigational system which gives the position of a vessel in an integer and fractional lane count format but has an inherent integer lane count ambiguity. A second navigational system capable of determining the |
| 4485333 |
Vapor discharge lamp assembly |
November 27, 1984 |
| A miniaturized vapor discharge lamp assembly that includes a light transmissive bulb containing a buffer gas and a vaporizable light radiating substance such as rubidium. Lamp excitation is provided by the use of a capacitor in the lamp assembly in conjunction with an RF oscillator. |
| 4476445 |
Methods and apparatus for rapid and accurate frequency syntonization of an atomic clock |
October 9, 1984 |
| Methods and apparatus for rapidly and automatically syntonizing the frequency of a passive atomic resonator of an atomic clock with a reference frequency which corresponds to the frequency of an external reference signal. Any difference between the hyperfine transition frequency of t |
| 4445186 |
Underwater mapping apparatus and method |
April 24, 1984 |
| A method and apparatus for producing a linear plan view display of a seabed, employing a side scan sonar signal system, have circuitry for repeatedly determining the height of the transmitting source relative to the seabed, circuitry for sampling the returning sonar signals, and circ |
| 4345455 |
Dew point hygrometer with continuous balancing system |
August 24, 1982 |
| A dew point hygrometer wherein separate reflective surfaces reflect light from separate light sources to a single light sensor. One surface is cooled to develop a coating of condensation. The other surface provides a standard to detect contamination build-up on both surfaces, and to dete |
| 4335597 |
Dew point hygrometer with two cooled reflective surfaces |
June 22, 1982 |
| A dew point hygrometer which employs two cooled reflective surfaces with one surface being held at a lower temperature than the other. The lower temperature surface provides a wet mirror to detect dew formation and the dry mirror provides a standard which may be used to compensate for |
| 4232380 |
Underwater mapping apparatus and method |
November 4, 1980 |
| A method and apparatus for producing a linear plan view display of a seabed, employing a side scan sonar signal system, have circuitry for repeatedly determining the height of the transmitting source relative to the seabed, circuitry for sampling the returning sonar signals, and circ |
| 4020379 |
Bulb-shaped flashtube with metal envelope |
April 26, 1977 |
| A bulb-shaped flashtube is provided with a metal envelope to increase its strength and enhance its reliability and operating characteristics. The metal envelope comprises a hollow cylindrical container including an open bottom end and an inwardly extending annular flange at its top end w |
| 3991267 |
Method for producing a compressed digital representation of a visible image |
November 9, 1976 |
| Lines on an image are optically scanned in sequence for image density at spaced intervals. Binary line scan functions are produced to represent the densities of the samples. These functions are translated into equivalent binary line codes of substantially reduced redundancy and length. |
| 3977685 |
Rotating bellows seal |
August 31, 1976 |
| An improved rotating bellows seal is disclosed which includes a bellows core having an annular mounting plate at one end adapted to drivingly and sealingly engage a shaft and a bellows seal ring on the other end to sealingly engage a mating seal ring. The mating and bellows seal rings ar |
