Patents Assigned to Solitron Devices, Inc.
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Patent number: 4965538Abstract: A microwave attenuator is constructed on an insulative substrate which supports a resistive region, input/output electrodes and shunt electrodes. The shunt electrodes are preferably constructed using trapezoidally shaped portions on the face of the insulative substrate, on which the resistive region is formed, to increase the width of the electrodes. The shunt electrodes extend down to a ground plane on the face of the insulative substrate opposite the face on which the resistive region is formed. In one embodiment, the shunt electrodes form a wide strip on the outside of a rectangular substrate. In another embodiment, the shunt electrodes extend from the resistive region through holes positioned close to the resistive region.Type: GrantFiled: February 22, 1989Date of Patent: October 23, 1990Assignee: Solitron Devices, Inc.Inventor: Joseph J. Mickey, III
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Patent number: 4931793Abstract: A system for providing a warning when at least two vehicles, first and second vehicles, are near a common collision point. The system includes closed loop verification between a first vehicle and a common collision point. The system includes a first transmitter for transmitting a first radio frequency signal, a first receiver for receiving the first radio frequency signal at the common collision point, a second transmitter for transmitting a second radio frequency signal from the common collision point to the first vehicle and to any approaching vehicles, a second receiver in a vehicle which can receive the second radio frequency signal and indicate that the first and second vehicles are near a common collision point, and a third receiver in the first vehicle for receiving the second radio frequency signal and for providing an indication that a closed loop between the first vehicle and the common collision point is functioning properly.Type: GrantFiled: July 1, 1988Date of Patent: June 5, 1990Assignee: Solitron Devices, Inc.Inventors: Norbert Fuhrmann, Nick Friedman
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Patent number: 4613199Abstract: A direct-crimp coaxial cable connector having a captive inner pin contact includes a tubular main body which extends from the front end which serves as an outer ring contact to the rear end where the tubular main body is crimped over the cable braid of a coaxial cable. A crimp ring is provided inside the rear end of the tubular main body and secures the cable braid of the coaxial cable against a ferrule which is inserted between the cable braid and the cable dielectric prior to crimping. The ferrule captivates an insulator ring and an inner pin contact which are rear-loaded into the tubular main body of the connector prior to crimping. A cylindrical contact insulator is secured inside the front end of the tubular main body, separates the inner pin contact from the front end of the tubular main body and secures the inner pin contact in combination with the insulator ring and ferrule.Type: GrantFiled: August 20, 1984Date of Patent: September 23, 1986Assignee: Solitron Devices, Inc.Inventor: Peter G. McGeary
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Patent number: 4484213Abstract: A variable circuit configuration in which each of a plurality of series connected devices is connected to a lead frame having a parallel circuit for such connected devices that can control the by-pass or use of all, some or none of the connected devices.Type: GrantFiled: February 19, 1982Date of Patent: November 20, 1984Assignee: Solitron Devices, Inc.Inventor: Dennis M. Franklin
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Patent number: 4196394Abstract: A matching coupler in an antenna system to power transfer in matching characteristic impedance of an antenna and a transmission line using a ganged variable capacitance with a resonate coil and another variable capacitance in series with a transmission line and an antenna.Type: GrantFiled: February 14, 1977Date of Patent: April 1, 1980Assignee: Solitron Devices, Inc.Inventor: Guy E. Adams
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Patent number: 4159667Abstract: A connecting nut having a base ring supporting a torque ring in a groove in the body of the base ring and a hex ring held about the torque ring by an annular flange in another groove of the base ring to permit rotation of the hex ring relative to the base ring when the frictional contact between the torque ring and the hex ring is exceeded.Type: GrantFiled: August 8, 1977Date of Patent: July 3, 1979Assignee: Solitron Devices, Inc.Inventor: Donald B. Nordstrom
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Patent number: 4105476Abstract: Method of fabricating a high voltage (V.sub.CED = 800 volts) PNP Power Transistor by a triple diffusion technique.Type: GrantFiled: May 2, 1977Date of Patent: August 8, 1978Assignee: Solitron Devices, Inc.Inventor: Fawzi J. Hamzawi
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Patent number: 4096852Abstract: A circuit for an indicator having a constant current temperature measuring circuit that can be balanced so as to provide a norm on an indicator so that any excursion thereof therefrom would provide indication of the need for emollients or astringents in proper care of the skin.Type: GrantFiled: December 22, 1976Date of Patent: June 27, 1978Assignee: Solitron Devices, Inc.Inventor: Guy Adams
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Patent number: 4064474Abstract: A compact arrangement having concentric loading element and coupling element with the latter forming a bearing support for a revolvable member mounting the former.Type: GrantFiled: November 9, 1976Date of Patent: December 20, 1977Assignee: Solitron Devices, Inc.Inventors: Guy Emery Adams, Donald Alexander MacPhedran
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Patent number: 4048541Abstract: A power supply circuit having a crystal controlled solid state oscillator induction coupled to a dual transistor circuit so as to eliminate second harmonics in a coil connected thereto and to a power supply in completing the circuit, and coil further having a resonance circuit therearound. Such power supply being suitable for driving a plasma gas envelope.Type: GrantFiled: June 14, 1976Date of Patent: September 13, 1977Assignee: Solitron Devices, Inc.Inventors: Guy Adams, Scott D. Goldman
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Patent number: 4047513Abstract: A circuit for use in an ignition system for an internal combustion engine which includes an electronic switch for control of the charging and discharging of an ignition coil with a capacitive controlled gas discharge tube circuit to provide protection for the electronic switch and permit increased dwell time for the coil.Type: GrantFiled: November 17, 1975Date of Patent: September 13, 1977Assignee: Solitron Devices, Inc.Inventors: Guy Emery Adams, Anna J. Pellegrin
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Patent number: 4046052Abstract: A torque limiting RF connector having a base ring for supporting RF connector means about which is operatively related to a torque ring joining a hex ring thereto such that torque is transmitted from the hex ring through the torque ring to the base ring in affixing an RF connection by threading the base ring to a part with which it will mate the connector means such that there is a limit of the applied torque which will not be exceeded.Type: GrantFiled: October 14, 1976Date of Patent: September 6, 1977Assignee: Solitron Devices, Inc.Inventor: Donald B. Nordstrom
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Patent number: 4034741Abstract: An analgesic noise generator employs a circuit that can be switched to provide a variable waveform from an active noise source out of an integrated circuit amplifier.Type: GrantFiled: February 17, 1976Date of Patent: July 12, 1977Assignee: Solitron Devices, Inc.Inventors: Guy Emery Adams, Jesse Carden, Jr.
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Patent number: 4032795Abstract: A circuit of complementary field effect devices whose logical input threshold voltage can be varied between levels suitable for TTL logic or CMOS or PMOS or other logic under control of an electrical signal in real time.Type: GrantFiled: April 14, 1976Date of Patent: June 28, 1977Assignee: Solitron Devices, Inc.Inventor: Robert R. Hale
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Patent number: 3993043Abstract: An analgesic noise generator employs a transistor operated to provide a zener action that is broadcast as the active noise source in an integrated circuit amplifier packaged as a portable unit with means to control tone and volume and enhance life of the power source.Type: GrantFiled: August 21, 1975Date of Patent: November 23, 1976Assignee: Solitron Devices, Inc.Inventors: Guy Adams, Scott D. Goldman
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Patent number: 3971870Abstract: This patent discloses a method for making junction-type semiconductor devices in which dopant is introduced into a wafer from a prefabricated source film.Type: GrantFiled: January 24, 1974Date of Patent: July 27, 1976Assignees: Semi-Elements, Inc., Solitron Devices, Inc.Inventors: Ralph W. Christensen, Everett C. Smith, George Tibol
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Patent number: 3967187Abstract: A current limiting circuit for a diode noise source improving noise output stability with changes in ambient operating temperature and variations in supply voltage.Type: GrantFiled: August 9, 1974Date of Patent: June 29, 1976Assignee: Solitron Devices, Inc.Inventor: Lon E. Edwards
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Patent number: 3967186Abstract: A solid state voltage regulator for an alternator charging system having a zener diode controlled transistor operatively connected to a integrated Darlington chip.Type: GrantFiled: February 3, 1975Date of Patent: June 29, 1976Assignee: Solitron Devices, Inc.Inventor: Guy Adams