Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 6765541 | Capacitatively shunted quadrifilar helix antenna A quadrifilar helix antenna is provided having a feedpoint for the antenna connecting to individual helical antenna elements. A capacitive network, distributed along the length of the antenna, constitutes a variable frequency shunting network. At each position a fir... | 07/20/2004 |
| 6732410 | Precision hinge mounting stops To accurately and reproducibly set the angle of a hinge, especially a very small hinge, a precision hinge and angled mounting stops are provided. The device comprises a hinge joint having a fastener, such as a screw, connecting two bodies. A flat C-shaped mounting s... | 05/11/2004 |
| 6645020 | Submarine countermeasure propeller protector A propeller protector for a countermeasure vehicle having a propeller shaft, a propeller fixed to the shaft, radial fins fixed on the vehicle and extending outwardly from the shaft, and a shield fixed to the fins and surrounding the propeller. The propell... | 11/11/2003 |
| 4869149 | At-sea recovery handling system A stabilizing system for use in conjunction with a crane/boom in which an ject is held fast to a foam cushion within the system. A hook that forms part of the system grasps a sling holding the object and secures the object against the foam cushion. The ob... | 09/26/1989 |
| 4864567 | High throughput data communication system A multiline modem system provides to a computer connection a plurality of lephone lines for transmitting and receiving digital computer data at throughput rates that exceed those of single line modem systems. The system determines the number of available ... | 09/05/1989 |
| 4862456 | High speed modem A multiline modem system provides to a computer connection a plurality of lephone lines for transmitting and receiving digital computer data at throughput rates that exceed those of single line modem systems. The system determines the number of available ... | 08/29/1989 |
| 4860013 | Automatic thresholding multichannel digital radar early warning system An RF multiplexer divides an incoming signal from an RF antenna into disce frequency bands. Each frequency band has its own separate circuit on separate lines to operate on the frequency band and determine if a radar signal is present or if only noise is... | 08/22/1989 |
| 4854174 | Colinear fluctuating wall shear stress and fluctuating pressure transducer A unique combination of two transducers. A hot film shear stress gauge and a piezoelectric pressure transducer are coaxially located along the longitudinal centerline of a cylindrical metal shell. The hot film shear stress gauge is exposed to the fluid wh... | 08/08/1989 |
| 4848146 | Underwater electromagnetic tubulent velocimeter A velocimeter, comprising a controlled magnetic field source and electric field sensors, the device being flush mounted in a vessel hull. The magnetic source comprises a drive coil which may be energized with either a DC current or an AC current at varous... | 07/18/1989 |
| 4848210 | Elastomeric impulse energy storage and transfer system A device for storing potential energy in the form of a distended elastome bladder and rapidly converting that stored energy into kinetic energy of a working fluid for quietly ejecting a projectile from the device into the surrounding fluid medium.... | 07/18/1989 |
| 4847628 | Frequency independent constant beamwidth directional lens antenna for very wideband and multi-channel electromagnetic communications A frequency independent constant beamwidth lens antenna concept is descri utilizing a point source to point focus nonspherical lens. The essential feature is that a twisted planar or hyperbolic paraboloidal phase or wave front is formed by the antenna wh... | 07/11/1989 |
| 4838797 | Underwater connect and disconnect plug and receptacle A plug and receptacle combination is transformer coupled. There are no exed contacts to the environment at any time, whether the plug and receptacle combination are mated or separated from each other. By encapsulating the primary winding and secondary wi... | 06/13/1989 |
| 4833271 | Structurally defined oligomers and preparation thereof for the protection of oxidative phosphorylation and which exhibit ionophoretic activity Structurally-defined, low molecular weight oligomers and preparation thereof which are active in the protection of oxidative physphorylation of mitochondria and exhibit ionophoretic activity. Said structurally defined low molecular weight oligomers are sy... | 05/23/1989 |
| 4825441 | Free electron laser using a relativistic beam with spiralling electron A free electron laser (FEL) is described which is used for generating high ower radiation in a region of increasing guiding magnetic field before injection into an undulating low magnetic field. It includes an electron beam propagating along a guiding magn... | 04/25/1989 |
| 4819503 | Low frequency structureborne vibration isolation mount A low frequency structureborne vibration isolation mount includes an annu disk pad of vibration damping material which is sandwiched and bonded between two similar light but rugged annular disks. The annular disk pad and the two annular disks have equal ... | 04/11/1989 |
| 4819216 | Integrated hydrophone preamplifier telemetry assembly For a simplified towed array configuration an integrated hydrophone, preamplifier and telemetry hybrid unit suitable for connecting with a single coaxial cable was developed. The preamplifier and FM hydrophone telemetry assembly comprises an air backed ce... | 04/04/1989 |
| 4812050 | Method for calibrating a heat flux gauge Double-sided, high-frequency response heat flux gauge for use on metal tune blading consists of a metal film (1500A) resistance thermometer sputtered on both sides of a thin (25 μm) polyimide sheet. The temperature difference across the polyimide is a d... | 03/14/1989 |
| 4811233 | Cost-optimal state feedback controller for all-attitude gimbal system An improved cost-optimal state feedback control system for stabilizing the nertial reference platform in all-attitude inertial guidance systems which uses the "region" control concept. It reduces the computational requirements of cost-minimizing state feed... | 03/07/1989 |
| 4799202 | Complementary interferometric hydrophone A cylindrical interferometric hydrophone having an axial hollow free-flooded volume includes an outer fiber wrap for a sensor leg and an inner fiber wrap for a reference leg. Both inner and outer fiber wraps are wound on elastomers and exposed to seawater... | 01/17/1989 |
| 4774519 | Towable buoyant cable antenna system with in-line broadband amplifier A towable broadband submarine antenna system for deployment in the ocean ing operation comprises an antenna element including a metallic termination tip and a length of single conductor buoyant cable. A broadband amplifier connects to the antenna element... | 09/27/1988 |
| 4766441 | Spokewheel convertible antenna for BCA systems aboard submarines A spokewheel convertible buoyant cable antenna is comprised of a multipliy of machined metal and molded or extruded plastic components. These parts are designed to be quickly assembled in such a way as to be watertight at all practical depths. They have ... | 08/23/1988 |
| 4764739 | Light-induced unidirectional light switch A light induced unidirectional light switch is described wherein a unidirectionally emitting medium is obtained using the method of Doppler compensation by light-induced velocity-dependent light shifts. The emission in the emitting medium can be switched ... | 08/16/1988 |
| 4764731 | Light-induced unidirectional light amplifier A unidirectional light amplifier is described wherein laser light is utilized to create an anisotropic medium in which light is fully amplified in only one direction and fully absorbed in the opposite direction. It is analogous to the way in which a junct... | 08/16/1988 |
| 4760348 | Broadband in-line amplifier for submarine antennas A towable broadband submarine antenna system for deployment in the ocean ing operation comprises an antenna element including a metallic termination tip and a length of single conductor buoyant cable. A broadband amplifier connects to the antenna element... | 07/26/1988 |
| 4759973 | Semi-foamed polyethylene molding tape A semi-foamed polyethylene tape for use in the molding of foamed jacket pethylene cables. After tumble mixing low density foaming polyethylene, ethylene vinyl acetate co-polymer and polyethylene color concentrate, the tape is extruded on a thermoplastic ... | 07/26/1988 |
| 4749420 | Method of making cable assembly for use in an antenna element assembly A semi-foamed polyethylene tape for use in the molding of foamed jacket pethylene cables. After tumble mixing low density foaming polyethylene, ethylene vinyl acetate co-polymer and polyethylene color concentrate, the tape is extruded on a thermoplastic ... | 06/07/1988 |
| 4725136 | Method for measuring particle velocity using differential photodiode arrays A method for measuring the velocity of a scatterer in a moving fluid by examining the spatial structure of the optical field on the detector of a Laser Doppler Velocimeter (LDV). The optical field after scattering from the laser beam is a traveling wave o... | 02/16/1988 |
| 4722609 | High frequency response multilayer heat flux gauge configuration Double-sided, high-frequency response heat flux gauge for use on metal turbine blading consists of a metal film (1500A) resistance thermometer sputtered on both sides of a thin (25 μm) polyimide sheet. The temperature difference across the polyimide is a... | 02/02/1988 |
| 4711424 | Combination energy absorbing foundation An energy-absorbing foundation provides both large and small scale absorpn of mechanical energy over a broad frequency band using a combination of linear and non-linear energy-absorbing means positioned between a region where the energy arises and anothe... | 12/08/1987 |
| 4693957 | Transition and inner transition metal chelate polymers for high energy resist lithography New transition and inner transition metal chelate polymers and method for nthesizing thereof. Such polymers are used as positive or negative resists of high sensitivity for lithographic purposes in integrated circuit chip fabrication requiring submicron r... | 09/15/1987 |
| 4694299 | Portable radar simulator with adjustable side lobe generator A scan oscillator and a Pulse Repetition Frequency (PRF) oscillator with associated analog and digital circuits provide drive signals for two different RF PIN diode attenuators. When driven by a portable Gunn Diode Oscillator or other microwave source RF ... | 09/15/1987 |
| 4682486 | Amorphous alloy toroids The soft magnetic properties of amorphous alloy toroids is improved by turning under tension an amorphous alloy ribbon onto itself to form a winding having a preselected number of turns such that the radially acting compressive stress is minimized. In one... | 07/28/1987 |
| 4680584 | Acoustic prelaunch weapon communication system The transmission of prelaunch weapon communication in a submarine is accoished without the use of an umbilical cord. Acoustic transducers transmit and receive acoustic data through water in place of the umbilical cord. The data transmitted through the wa... | 07/14/1987 |
| 4669085 | Electro-optical modulator for an electro-optically modulated laser The present invention provides a jitter stable electro-optical modulator for modulating a high power, repetitively pulsed laser having an optical risetime (10% to 90%) of the order of nanoseconds. The electro-optical modulator includes a birefringent elec... | 05/26/1987 |
| 4668828 | Conversion of prostaglandin analogs into a bicarbonate insoluble oligomeric mixture A method for oligomerization of a group of prostaglandin analogs such as Ethyl Analog 3-(trans-3-keto-1-pentenyl)-2-ethyl-2-cyclopentenone into a biologically active exhibiting protection of oxidative phosphorylation of degenerated mitochondria and sodi... | 05/26/1987 |
| 4663486 | Conversion of prostaglandin analogs into a bicarbonate insoluble oligomeric mixture A method for oligomerization of a group of prostaglandin analogs such as Ethyl Analog 3-(trans-3-keto-1-pentenyl)-2-ethyl-2-cyclopentenone into a biologically active exhibiting protection of oxidative phosphorylation of degenerated mitochondria and sodi... | 05/05/1987 |
| 4663503 | MHD pinch interrupting switch for high currents Switching apparatus for very high currents utilizes the magneto hydrodyna pinch effect to interrupt a liquid metal column that occupies the gap between a pair of spaced conductors maintained apart by an insulating sleeve. The on/off condition of the swit... | 05/05/1987 |
| 4659548 | Fabrication of metal matrix composite mirror Fabrication of a high precision mirror using a discontinuous metal matrix mposite is described. A metal matrix composite (MMC) is obtained by using one of the three methods described herein or any other method. The MMC material so obtained is machined to ... | 04/21/1987 |
| 4653034 | Remote monitor unit A remote monitor unit comprising a battery pack, a regulated power supply, program control board, a receiver AD board, a plurality of memory boards and a transducer, all housed in a water tight enclosure. External control or data communication links are u... | 03/24/1987 |
| 4634201 | Connector/nitinol Ɗ contact force device An electrical connector employs a pin and socket mechanism enclosed by a tact force device. The contact force device has a uniqueness so that after insertion of the pin in the socket with the device at a very low temperature is completed, the device is a... | 01/06/1987 |
