Patents Represented by Attorney, Agent or Law Firm Frederick A. Wein
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Patent number: 4897624Abstract: Apparatus for adjusting capacitance between an electronic component and external circuitry. The electronic component is unitarily provided with a plurality of conductive leads for connection to external circuitry with at least one of the leads being configured to provide integral means for adjustment of capacitance. The configured lead is bent for a turnabout of about 180 degree change of direction such that when the component is mounted on a printed circuit board the portion of the lead distal of the component extends above the board and is positionally adjustable providing adjustable capactive coupling to other circuit components.Type: GrantFiled: February 23, 1989Date of Patent: January 30, 1990Assignee: Thomson Consumer Electronics, Inc.Inventors: Leroy S. Wignot, Robert P. Parker
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Patent number: 4880296Abstract: The present invention relates to an optical beam deflector, beam modulator and beam shaper using a Raman-Nath diffraction methodology generated by a plurality of writing laser beams focused onto a bulk optical material having anisotropic optical characteristics for deflection, modulation, and shaping of a beam of light incident to the diffraction grating. The writing laser beams are split from a turnable laser source and the choice of the desired operational characteristic, i.e. deflector, modulator, and shaper are chosen by selective manipulation of the source beam and the derived split beams.Type: GrantFiled: June 4, 1987Date of Patent: November 14, 1989Assignee: The United States of America as represented by the Secretary of the NavyInventor: L. Samuel Ditman, Jr.
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Patent number: 4866780Abstract: A frame for a loudspeaker unit used, for example, in a television receiver, has provisions for optionally fastening one type of loudspeaker to the frame by a positively-locking fastening arrangement or another type of loudspeaker by screw fastening. Specifically, the frame includes both a positively-locking click-stop arrangement for snap-in fastening, and also clip elements for holding the loudspeaker during a screwing operation.Type: GrantFiled: September 27, 1988Date of Patent: September 12, 1989Assignee: Electronic-Werke Deutschland GmbHInventors: Pascal Mertz, Karl-Heinz A. A. O. Thiele, Werner Stehn
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Patent number: 4860107Abstract: A video signal is coupled from the output of a display driver amplifier to an image display device via a coupling network including cascaded emitter follower transistors of opposite conductivity type. First and second diodes are respectively connected across the base-emitter junctions of each transistor and are poled for forward current conduction in a direction opposite to that of the associated base-emitter junction. The coupling network significantly reduces the value of capacitance of the display device as presented to the output of the driver amplifier, thereby improving positive and negative video signal transient response.Type: GrantFiled: March 28, 1988Date of Patent: August 22, 1989Assignee: Thomson Consumer Electronics, Inc.Inventor: John H. Furrey
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Patent number: 4858015Abstract: A video signal from a low impendance output of an amplifier device is conveyed to an image display device via a coupling path including first and second series connected resistors and a high frequency bypass capacitor coupled across the first resistor. The coupling path limits the signal drive to the display device particularly in the presence of a large magnitude video drive signal, and also compensates for high frequency attenuation of the video drive signal by an input capacitance of the display device.Type: GrantFiled: March 28, 1988Date of Patent: August 15, 1989Assignee: Thomson Consumer Electronics, Inc.Inventor: John H. Furrey
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Means for protecting electroexplosive devices which are subject to a wide variety of radio frequency
Patent number: 4848233Abstract: An RF attenuator for attenuating RF signals in a lead particularly for prcting against unintentional detonation of electrically initiated ammunition is presented. A firing lead is embedded in a body of ferrite material. The firing lead is formed in a planar spiral configuration with reversals of direction.Type: GrantFiled: October 1, 1985Date of Patent: July 18, 1989Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert L. Dow, Paul W. Proctor -
Patent number: 4845508Abstract: An electric wave operating device for efficiently coupling electromagnetic energy from a waveguide into a dielectric element or vice versa. A waveguide horn portion is chosen for radiating in the primary HE.sub.11 mode and designed to have a predetermined HE.sub.11 mode farfield radiation pattern. A dielectric member is securely disposed with one end in the plane of the aperture of the waveguide horn with the dielectric member having a predetermined HE.sub.11 mode farfield radiation pattern substantially equal to the farfield radiation pattern of the horn.Type: GrantFiled: May 1, 1986Date of Patent: July 4, 1989Assignee: The United States of America as represented by the Secretary of the NavyInventors: Albert D. Krall, James P. Coughlin
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Patent number: 4767998Abstract: A high frequency active filter is presented having an amplifier having an en loop gain between one and three which is provided with appropriate electrical components of appropriate values for generating the desired filter configuration of pole-zero pairs with no intentional connection between the negative input terminal of the amplifier and the output terminal of the amplifier.Type: GrantFiled: February 19, 1987Date of Patent: August 30, 1988Assignee: The United States of America as represented by the Secretary of the NavyInventor: Arthur D. Delagrange
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Patent number: 4725733Abstract: An apparatus and method for remotely detecting the presence of chemical ware nerve agents in a suspect thermal cloud. Infrared radiation emitted by a suspect thermal cloud is analyzed by means of a forward looking infrared thermal imager equipped with a spectral filter wheel having four passband filters; three of the spectral filter elements are spectrally optimized to respond to infrared radiation emissions characteristic of chemical warfare nerve agents. The variations in image contrasts of the thermograms generated by selectively filtering the infrared radiation emitted by the suspect thermal cloud are compared to determine the presence or absence of chemical warfare nerve agents in the suspect thermal cloud.Type: GrantFiled: July 18, 1983Date of Patent: February 16, 1988Assignee: The United States of America as represented by the Secretary of the NavyInventors: Roger Horman, Joseph Overman, Stuart Herndon
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Patent number: 4710478Abstract: The present invention relates to complementary logic field effect transistors having high electron and hole mobility and above to maintain transistor action at cryogenic temperatures. In one embodiment germanium material is deposited upon a gallium arsenide substrate and high hole concentration areas and high electron concentration areas are created in the germanium layer. In another embodiment a germanium substrate is provided and a gallium arsenide layer is grown upon the germanium substrate with appropriate high hole concentration areas and high electron concentration areas being created within the gallium arsenide.Type: GrantFiled: May 20, 1985Date of Patent: December 1, 1987Assignee: United States of America as represented by the Secretary of the NavyInventors: Max N. Yoder, George B. Wright
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Patent number: 4702884Abstract: A method of producing a glass-lined metal pipe in which an unconsolidated tal or metal alloy powder is loaded into a sealable glass mold comprising a graphite core, a glass sleeve slipped over the graphite core with a sliding fit, a sealable outer glass envelope surrounding the graphite core and glass sleeve forming with them a sealable chamber for the metal or metal alloy powder, wherein the glass is a type which becomes plastic when heated. The air in the mold is removed under vacuum and the mold is sealed and placed into a free flowing refractory powder in a crucible and consolidated by sintering under atmospheric pressure (CAP.RTM. process). Removal of the glass envelope and the graphite core produces a glass-lined pipe in which the glass liner is slightly fused into and is under compressive force from the surrounding metal pipe.Type: GrantFiled: July 3, 1986Date of Patent: October 27, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventor: David Goldstein
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Patent number: 4671845Abstract: The present invention relates to the production of a stable insulator of a germanium and a device produced thereby. A germanium substrate is provided with a layer of silicon nitride deposited on one of the outer surfaces. Ionized nitrogen is implanted by an ion beam into the silicon nitride layer. An electric field is applied across the substrate and layer. In one embodiment the substrate and layer are annealed while maintaining the electric field, the electric field is removed, and a second annealing step grows the germanium nitride insulator layer subcutaneously. In another embodiment the subcutaneous germanium nitride insulator layer is grown during a single annealing step by continued application of the electric field to the substrate and the layer.Type: GrantFiled: March 22, 1985Date of Patent: June 9, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventor: Max N. Yoder
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Millimeter wavelength dielectric waveguide having increased power output and a method of making same
Patent number: 4665660Abstract: A millimeter wavelength solid dielectric waveguide having either an undulng or roughened outer surface is disclosed. As configured, and properly designed, for the wavelength of interest, the non-cylindrical surface will not have any deleterious effects on the electromagnetic properties of the dielectric waveguide. Moreover, the novel surface treatment will greatly increase the amount of heat energy that can be dissipated by radiation and convection from the dielectric waveguide thereby increasing its power handling capability.Type: GrantFiled: June 19, 1985Date of Patent: May 19, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventors: Daniel G. Jablonski, Albert D. Krall -
Patent number: 4657822Abstract: Alloy powder is packed into a mold which comprises a complex-shaped solid aphite inner core and a similarly complex-shaped thin glass outer wall. The mold is evacuated, sealed, and then heated to the alloy sintering temperature, the glass softens and applies an isostatic pressure on the alloy as the alloy particles consolidate. After the consolidation step, the mold and its contents are cooled and the glass and graphite materials are removed from the alloy object. This method is particularly useful for preparing complex fittings of Nitinol shape memory alloys.Type: GrantFiled: July 2, 1986Date of Patent: April 14, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventor: David Goldstein
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Patent number: 4648041Abstract: An eddy current magnetic field effects measurement apparatus employs, a reference sensor located so that it measures an applied field and any environmental fields but does not measure eddy current effects. Then an estimate(s) of the applied field at the locus of a plurality of measurement sensors is constructed and stored. Next, a conductive object or material to be measured is placed in the applied field in the vicinity of the plurality of measurement sensors away from the reference sensor and measurements are made of the applied field, any environmental fields and any fields due to the effects of eddy currents induced into the conductive object or material. Finally, the aforementioned stored estimate(s) are used to compensate the applied field at the locus of the plurality of measurement sensors so that the eddy current magnetic field effects due to the placement of the conductive object or material can be observed on a keyboard/display or printed via a printer/plotter.Type: GrantFiled: June 24, 1985Date of Patent: March 3, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventor: Paulo B. Tarr
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Patent number: H260Abstract: A superior hermetic seal for ceramic modules is presented. The case base ber is provided with metallization around the periphery of the cavity. The case cover is provided with metallization not only to mate with the metallization of the base, but the cover metallization extends onto the thickness edge. The dimensions of the cover are less than the corresponding metallization dimensions of the base member. In this manner the solder bead formed about the periphery will wet the exposed metallization surfaces and form a visually inspectable bead.Type: GrantFiled: July 1, 1986Date of Patent: April 7, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventors: Hayden Morris, Henry W. Rhodes, Margaret C. Marlow
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Patent number: H281Abstract: There is disclosed a safe and arming device for ordnance fuzes including an nterrupter. The interrupter includes a cylindrical body adapted for rotational or axial movement in a housing when subjected to acceleration or other mechanical force in a bomb, missile, or other projectile for which designed. The cylindrical body is provided with a plurality of radially extending orthogonal openings containing detonators, whereby, upon movement of the cylindrical body, the detonators are brought into facing explosive communication with explosive leads for arming the fuze.Type: GrantFiled: October 24, 1986Date of Patent: June 2, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventor: Arnold S. Munach
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Patent number: H511Abstract: A data collection system is configured using, inter alia, a master proces and a plurality of slave processors one for each data source to be collected. The slave processors depend upon the master processor for system timing and interpretation of operator commands via a display/keyboard. Each slave processor is a dedicated independent microcomputer whose software is customized for the data collection required. Overhead software for the slave processor is minimized by the use of a simple command structure between the master processor and the plurality of slave processors.Type: GrantFiled: July 9, 1984Date of Patent: August 2, 1988Assignee: The United States of America as represented by the Secretary of the NavyInventor: Samuel L. Stello
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Patent number: H585Abstract: The present invention is an apparatus and method for the non-destructive ting of the anisotropic magnetoresistance parameters of a film. A plurality of contacts points are securely disposed in a generally planar support means and engagable with a surface of the film for measuring the anisotropic magnetoresistance parameters of the film in accord with a predetermined equation.Type: GrantFiled: January 20, 1988Date of Patent: February 7, 1989Assignee: The United States of America as represented by the Secretary of the NavyInventor: John M. Cavallo
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Patent number: H368Abstract: A method of improving field-effect transistors, and the product thereof, wherein the resistivity of the upper layer of the source-gate channel region of a GaAs field-effect transistor (FET) may be selectively raised is disclosed. Impurity ions are implanted in the source-gate channel region followed by a much shallower implantation of boron in the same region. The boron ion concentration should exceed the N+ impurity ion concentration by a factor of 2 or more.Type: GrantFiled: September 16, 1980Date of Patent: November 3, 1987Assignee: The United States of America as represented by the Secretary of the NavyInventor: Max N. Yoder