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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 4795718 | Self-aligned contact for MOS processing A process for manufacturing an insulated gate field effect semiconductor device having self-aligned contact regions. The process avoids the need for a masking step for the application of interconnecting contacts by providing a dielectric material having a... | 01/03/1989 |
| 4066342 | Mirror mount with beveled aperture for optical systems A tubular shaped aperture extends through a mounting base and includes two aligned sections of different sizes so that the junction of the two sections provides an abutment. A mirror is positioned within the larger section with the reflective side facing ... | 01/03/1978 |
| 4065701 | Electrodeless light source with reduced heat losses Improved efficacy is obtained in an electrodeless light source of the type having a high frequency electrodeless lamp disposed at the ends of inner and outer conductors of a termination fixture by evacuating the region between the lamp envelope and the ou... | 12/27/1977 |
| 4063132 | DC powered microwave discharge in an electrodeless light source A half wavelength resonant cavity having inner and outer coaxial conductors is coupled at one end to a dc power source, and a gas discharge electrodeless lamp is disposed in the region between the conductors at the other end of the cavity. Repetitive burs... | 12/13/1977 |
| 4053905 | Optical scanning apparatus for photolithography of a color cathode ray tube having an aperture mask In an optical scanning apparatus for photolithographic processing of faceplates intended for color cathode ray tubes, a light beam from a source is first deflected through an angle related to a predetermined angle of incidence that an electron beam in an ... | 10/11/1977 |
| 4053814 | Continuous automatic starting assist UV circuit for microwave powered electrodeless lamps A starting assist control circuit for an electrodeless light source in which a UV source for assisting in starting an electrodeless lamp is coupled in series with the DC supply for a microwave power source for the lamp so that a reduced DC voltage is supp... | 10/11/1977 |
| 4041352 | Automatic starting system for solid state powered electrodeless lamps A starting assist control circuit for an electrodeless light source in which a UV source for assisting in starting an electrodeless lamp is coupled in series with the dc supply for a microwave power source for the lamp so that a reduced dc voltage is supp... | 08/09/1977 |
| 4041447 | Bonded magnetic bubble memory A bonded bubble memory device includes a non-magnetic first substrate, a thin film layer of magnetic material located on a planar surface of the first substrate, the layer being adapted to sustain cylindrical wall magnetic domains, a second substrate made... | 08/09/1977 |
| 4040090 | Bias gate for noise suppression circuit In a gain controlled television receiver the level for detecting noise in a composite video signal is increased during the synchronization pulse intervals of the signal over that during the other intervals of the signal. This level increase is controlled ... | 08/02/1977 |
| 4032973 | Positive feedback high gain AGC amplifier An automatic gain control circuit provides a high gain signal representative of the difference in amplitude between the synchronizing pulses of a composite video signal and a predetermined reference level. A common emitter transistor provides high gain am... | 06/28/1977 |
| 4027312 | Optical scanning apparatus and method for manufacturing cathode ray tubes An optical scanning apparatus for manufacturing cathode ray tubes having a faceplate with an inner surface layer of photosensitive material and an adjacent apertured mask wherein a light beam from a light source is applied to a deflection device controlle... | 05/31/1977 |
| 4023050 | Logic level converter A logic level converter converts an input signal having first and second voltage levels to an output signal having first and third voltage levels in which the voltage excursion of the output signal is greater than that of the input signal. The converter c... | 05/10/1977 |
| 4019806 | Eccentric optical fiber coupler An improved optical fiber coupler for use with eccentrically mounted optical fibers is disclosed in which a V-groove coupler block is utilized for receiving and locating the mating pair of connectors. The connectors are circularly cylindrical and each lie... | 04/26/1977 |
| 4019069 | Baseband video switch The signal path between the input and output of a baseband video switch has a control point to which a signal representative of a switch control signal and a switchable constant current source are coupled. A pair of diodes and a switchable, high impedance... | 04/19/1977 |
| 4016556 | Optically encoded acoustic to digital transducer A transducer converts an acoustic signal into a digital pulse code signal through optical encoding techniques. A pulsed light source emits a beam of light along a predetermined path. A digital optical encoder is located in the path and emits a digitally e... | 04/05/1977 |
| 4006298 | Bistable matrix television display system A television display system is described in which a full resolution, interlaced scanned display of real-time images is provided on a bistable matrix display panel. The display system has a gray scale with 64 discrete levels of brightness. The brightness l... | 02/01/1977 |
| 4004178 | White light source A white light source is described in which a trivalent metallic ultraphosphate is irradiated with a low voltage electron beam. The metallic ions are generally restricted to the lanthanide rare earth ions and yttrium. The material so irradiated emits light... | 01/18/1977 |
| 4002944 | Internal match starter for termination fixture lamps In a light source excited with power at a high frequency, an electrodeless lamp is located in a termination fixture comprising an inner and outer conductor, the lamp being located at the end of the inner conductor. An internal tuning element is located wi... | 01/11/1977 |
| 4002943 | Tunable microwave cavity A tunable microwave cavity permits adjustment of the penetration of a power coupling probe into the main cavity by adjusting a grounded element of the cavity. A pair of conductive tubes are in telescoping relationship and have mutually engaging threads so... | 01/11/1977 |
| 4001631 | Adjustable length center conductor for termination fixtures for electrodeless lamps A light source includes a source of high frequency power, an electrodelsss lamp and a termination fixture for coupling power to the lamp, the fixture having an outer conductor and an inner conductor whose length is adjustable for providing dynamic matchin... | 01/04/1977 |
| 4001632 | High frequency excited electrodeless light source A light source includes an electrodeless lamp having an envelope for enclosing a volatile fill material which emits light upon vaporization and excitation, a source of power at a high frequency and a termination fixture coupled to the source. The fixture ... | 01/04/1977 |
| 3999084 | Limiting amplifier with adjustable limits A limiting amplifier includes an operational amplifier with three feedback loops. One loop controls the gain of the amplifier when the output signal is between the upper and lower limit. Each of the other two feedback loops comprises the high gain summing... | 12/21/1976 |
| 3997816 | Starting assist device for an electrodeless light source An electrodeless lamp is excited by high frequency power in a termination fixture having an inner and an outer conductor, the lamp being located in the high field region at the end of the conductors. A source of ultraviolet radiation is located near the l... | 12/14/1976 |
| 3996418 | Scrambler and decoder for secure television system A scrambler for a television system alternately inverts the phase of the carrier which is modulated by the television signal. A binary coding signal controls the manner of the carrier-phase inversion. Phase inversion is obtained by combining the modulated... | 12/07/1976 |
| 3995195 | Eccentric termination fixture for an electrodeless light In a light source in which an electrodeless lamp is excited by high frequency power coupled into a lamp termination fixture having an inner and outer conductor, the fixture has a dynamically variable characteristic impedance, thereby facilitating dynamic ... | 11/30/1976 |
| 3994355 | Wheel assembly An improved wheel assembly includes a pair of contact bearings which are displaced from the vertical center line of the wheel for reducing frictional forces and the required torque in rotating the wheel. The bearings contact the inner surface of a drum ha... | 11/30/1976 |
| 3993927 | Electrodeless light source A termination fixture for an electrodeless lamp has dimensions which match the output impedance of a coupled high frequency power source to the real impedance of the lamp when in a discharge condition. The fixture may consist of a pair of coaxial conducto... | 11/23/1976 |
| 3990780 | Optical switch An optical switch is described which has particular utility in communication systems utilizing light as a modulated carrier. The switch is susceptible to construction as an integrated optical device and may be formed with a planar substrate and an optical... | 11/09/1976 |
| 3989887 | Swept frequency trap jammer for secure television system A jamming circuit for making unusable the television signal of a preselected channel includes a bridged T-trap filter having a pair of high Q circuits adapted to be tuned to the carrier frequency of the preselected channel, and a device for cyclically swe... | 11/02/1976 |
| 3984679 | Coating thickness monitor for multiple layers An apparatus for measuring the plating thickness of a thin gold coating on a substrate such as a sheet or thin wire is described. The gold plating thickness, which may range from one to about one hundred and fifty microinches, is measured with an X-ray an... | 10/05/1976 |
| 3983493 | Digital symmetric waveform synthesizer A waveform synthesizer for generating analog waveforms is provided utilizing all MOSFET integrated circuit logic. The synthesizer includes an n stage clocked shift register in which the input to the first shift register stage is the inverted output of the... | 09/28/1976 |
| 3980377 | Printed circuit connector A printed circuit board connector includes a plurality of contact members each of which is formed of one or more pieces of spring biased material. A contact member includes a cam portion and a contact portion which are generally rotatable about an interme... | 09/14/1976 |
| 3979738 | Compound detector for magnetic domain memory devices In a magnetic domain memory, a domain detector system includes a passive domain splitter in a domain propagation track, a first detector in the propagation track for detecting one of the domains from the splitter, and a second detector in an auxiliary pro... | 09/07/1976 |
| 3973545 | Contactless ignition system utilizing a saturable core transformer A contactless ignition system includes a free running oscillator which generates an output timing pulse to a pulse generator and an ignition coil whenever the oscillations of a saturable core transformer and a series resonant circuit which is driven by th... | 08/10/1976 |
| 3971126 | Method of fabricating magnetic field drive coils for field accessed cylindrical domain memories A magnetic field drive coil arrangement includes a hollow rectangular coil form having a pair of rectangular openings at opposite lengthwise ends of the form, a first coil wound around the coil form such that the turns of the coil in the central region of... | 07/27/1976 |
| 3971005 | Dual access magnetic domain memory A magnetic domain memory system includes a domain propagation track, having a plurality of minor loops of equal domain capacity, first and second major loops of equal domain capacity and first and second groups of transfer switches which couple each minor... | 07/20/1976 |
| 3967152 | Simultaneous electrostatic focusing and deflection system A cylindrical electrode for use in focusing and deflecting an electron beam is provided about its central section with eight mutually separated electrode segments arranged in a diametrical fashion for deflecting the beam, and with first and second cylindr... | 06/29/1976 |
| 3956848 | Insect population serializer A device which is useful in determining the efficacy of various insect attractants and repellants. In particular, the device is useful for determining any time relationships which occur during the use of those attractants and repellants. The device has a ... | 05/18/1976 |
| 3955534 | Laboratory animal activity game The motion of a caged laboratory animal is recorded by providing in the floor of the cage a platform which tilts slightly into one of four quadrants in response to the location of the animal within the cage. The tilting of the platform activates a switch ... | 05/11/1976 |
| 3954508 | High temperature thermocouple probe A thermocouple probe for use in measuring high temperatures includes a ceramic rod having a pair of channels extending throughout the length of the tube, a pair of conductors of different material extending through the channels and being interconnected at... | 05/04/1976 |
