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Ballistic resistant body covering
A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.
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| Number | Title | Issue Date |
| 4176289 | Driving circuit for integrated circuit semiconductor memory An improved driving circuit is provided especially for use in an integrated circuit semiconductor memory which operates on low power supply voltage, such as 5 volts, the drive circuit employing field effect transistors coupled with bootstrap capacitor dev... | 11/27/1979 |
| 4161791 | Automatic refresh memory cell A simple, three element, charge pumped, automatic refresh dynamic storage RAM cell is disclosed. Information is represented by the charge of the capacitance coupling to the substrate. The storage junction gates a transistor enabling the application of a r... | 07/17/1979 |
| 4156117 | Speaker system A stereo speaker system removably mountable on the back of a seat includes two speaker assembly enclosures pivotally mounted on a spacer bar to maintain the speakers at a desired separation and orientation and a strap for securing the enclosures and space... | 05/22/1979 |
| 4140384 | Film conveyor In a film conveyor for use in developing films comprising a first and a second belt racks consisting of a plurality of narrow belts and pressure rollers, and a roller rack consisting of a plurality of squeegee rollers and spray tubes arranged between said... | 02/20/1979 |
| 4134151 | Single sense line memory cell A static memory cell is provided which can be written into or read from using only a single sense line, as contrasted to all previous systems which use two sense lines.... | 01/09/1979 |
| 4130845 | Disc cabinet recirculating air flow system An axially symmetrical, self-pressured air system has a substantially sealed enclosure for high speed rotating discs. Air admission to the enclosure is located such that pressures throughout the enclosure minimize the entrance of contaminants. A tangentia... | 12/19/1978 |
| 4127188 | Frangible door container A longitudinal sheet of paperboard has longitudinally aligned spacing elements for holding and containing substantially flat, frangible items resiliently spaced from each other. The sheet is adapted for wrapping the edges of the flat, frangible items for ... | 11/28/1978 |
| 4127765 | Anti-condensation system for refrigerator doors A system is described which permits the electrically heated door of a refrigerated display cabinet to be operated selectively at a plurality of power settings, providing respectively higher and lower levels of electrical heating. A switching means is used... | 11/28/1978 |
| 4109168 | Current-to-frequency converter A current-to-frequency converter in which a succession of small charge feedback pulses is selectively generated to null the input current. The feedback pulses are generated by applying voltage pulses of precisely controlled magnitude to a precision capaci... | 08/22/1978 |
| 4106744 | Mandrel for formation of mass spectrometer filter A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mand... | 08/15/1978 |
| 4106094 | Strap-down attitude and heading reference system Estimators of a vehicle's position and attitude with respect to the earth are generated continuously by integrating the outputs of translational and rotational accelerometers that are attached to the vehicle. These estimators are corrected by comparing th... | 08/08/1978 |
| 4093847 | Temperature control system for electric fluid heater An electric fluid heater of the type in which the fluid is heated by passing electricity through it includes an electronic temperature control system responsive to a temperature sensor in the fluid for controlling the flow of electric current to the heati... | 06/06/1978 |
| 4092733 | Electrically alterable interconnection An electrically alterable, non-volatile interconnect selectively connects and disconnects microcircuit elements formed on a wafer. The interconnect is formed on the same wafer as the microcircuit elements during the circuit fabrication process to permit e... | 05/30/1978 |
| 4090229 | Capacitive key for keyboard In a capacitive key for use in a keyboard, an operator depresses a plunger which alters the separation between the plates of a capacitor, thereby altering its capacitance. It is desirable to provide plunger overtravel which permits further depression of t... | 05/16/1978 |
| 4087139 | Guide for fastener A guide to assist in inserting a fastener into a first hole in a first surface which is accessible through a second hole in a wall facing the first surface, comprises a plastic tube press-fitted through the second hole, extending to and surrounding the fi... | 05/02/1978 |
| 4082049 | Sailing cradle A sailing frame is disclosed which, in the preferred embodiment, is adapted to mount on an inflatable boat. The frame can be disassembled and/or folded into a small package for storage, compatible with the deflated boat. The frame assembles into a rigid c... | 04/04/1978 |
| 4081158 | Monocoque arched kite The aerodynamic surface of the kite consists of a single sheet of stiff material arched about a longitudinal axis, being more highly arched at the front end than at the rear and having an aperture located predominantly on the rearward half. In a preferred... | 03/28/1978 |
| 4080756 | Insulated refrigerator door frame A channel-like structural member for use as a refrigerator door frame, having a generally U-shaped cross section including a first flange, a second flange, and an intermediate control portion wherein the improvement comprises a thermally insulative therma... | 03/28/1978 |
| 4079254 | Mass spectrometer filter A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mand... | 03/14/1978 |
| 4071698 | Telephone system for audio demonstration and marketing of goods or services A system is disclosed for marketing merchandise or services by telephone using brief prerecorded audio demonstrations stored in an audio program repeater and connected to a customer's telephone line by a switching system under control of a data processor ... | 01/31/1978 |
| 4068197 | Apparatus for stabilizing beam for exposure An apparatus for stabilizing a laser beam to be used for exposure in an image-reproducing apparatus wherein said beam is suitably controlled by image signals obtained from the scanning of the original beam as modulated. A laser beam, after being suitably ... | 01/10/1978 |
| 4065657 | Curling iron with stepped barrel A curling iron, having a single stepped barrel having a different diameter at each step, to enable a hairdresser to perform lift operations for providing body and gentle curvature to the hair, and curl operations for curling the ends of the hair, without ... | 12/27/1977 |
| 4065788 | Realtime image processor An image formed on an array of photosensitive elements is scanned and stored. A defocussed image is scanned and subtracted from the stored signals. The frame-to-frame subtractive algorithm permits simultaneous image enhancement and elimination of sensor i... | 12/27/1977 |
| 4061877 | Speaker system A stereo speaker system removably mountable on the back of a seat includes two speaker assembly enclosures pivotally mounted on a spacer bar to maintain the speakers at a desired separation and orientation and a strap for securing the enclosures and space... | 12/06/1977 |
| 4057119 | Powered hand truck for climbing steps A hand truck powered by pressurized gas for transporting a load up one or more steps, having a unique mechanical design permitting it to execute a smooth climbing motion up nosed or unnosed steps, and further having a power control system implementing sev... | 11/08/1977 |
| 4035783 | Analog delay circuit Solid state digital circuitry is used in an apparatus which receives standard, continuously variable 4 to 20 milliampere analog signal information, continuously stores this information in a digital format and, after a preselected time interval measured in... | 07/12/1977 |
| 4035608 | Multi-pane window structure In a multi-pane window structure for use between a cold region and a warmer region, where the first pane adjoining the warmer region is electrically heated to prevent condensation or frost, the improvement comprising an infrared-reflective coating transpa... | 07/12/1977 |
| 4033541 | Torque rejection soft mounted platform A system for stabilizing sensitive apparatus from translational and rotational vibrations of the structure on which the apparatus is mounted uses a conventional bearing or a flexure pivot to achieve angular isolation in series with a compliant isolator fo... | 07/05/1977 |
| 4032975 | Detector array gain compensation In an electronic system employing an array of detectors which have been compensated for any fixed pattern noise present, further compensation is provided for any deviation in sensitivity (gain) of each detector from a standard by measuring the output of e... | 06/28/1977 |
| 4029405 | Sprocketed film transport A motion picture film and sound editing-projecting system which utilizes a single sprocket wheel to advance the film and which includes record and reproduce heads within the sprocket wheel. The sprocket wheel is directly connected to the armature shaft of... | 06/14/1977 |
| 4022345 | Drum with handling rings A plastic drum having a cylindrical mid-section and tapered shoulders terminating in generally planar end walls is adapted to receive and retain at its upper and lower shoulders, ring-shaped attachments encircling the circumference of the drum to facilita... | 05/10/1977 |
| 4020284 | Speaker system A stereo speaker system for portable use having two loud speakers mounted side by side in a common housing which may be divided. The housing substantially surrounds the speakers and the speakers substantially occupy the chamber defined by the housing. The... | 04/26/1977 |
| 4018408 | Concave parabolic arch kite A kite having separate forward and aft sails, each arched about a common longitudinal kite axis and each sail disposed concave downward in flight. The concave shape of the sail funnels the wind through the kite. Lift is derived from the central portions o... | 04/19/1977 |
| 4013832 | Solid state image modulator For use with a one- or two-dimensional charge-coupled photodiode array, apparatus for modulating an optical image formed on the photosensor portion of the array with a predetermined pattern of density variations and for causing the pattern to move in a pr... | 03/22/1977 |
| 4008414 | Circuit for powering fluorescent lamps A circuit employing an oscillator having a feedback loop for supplying operating current at a frequency in the range 20-25 kilohertz to a pair of fluorescent lamps connected in series. The heater filament of the first lamp is made a series element in the ... | 02/15/1977 |
| 4006294 | Transducer head assembly with fluid bearing and head height control system A transducer head assembly supported above a surface has the spacing of its transducer head from the surface maintained at a predetermined value by a pressure-sensitive regulator which responds to changes in fluid flow pressure resulting from spacing chan... | 02/01/1977 |
| 4004370 | Insulated door mounting frame structure In a refrigerator door mounting frame, the use of a thermal barrier between the cold portion and the warm portion of the frame in combination with a divided thermal conduction path extending from an intermediate portion into the cold portion. The divided ... | 01/25/1977 |
| 4004705 | Capsule or seal carrying a certificate stamp or the like therein A capsule made from a heat-shrinkable film by overlapping and bonding ends of said film to form a cylindrical body such that a non-bonded overlapping portion provided between the bonded ends of the film, then inserting a certificate stamp or the like into... | 01/25/1977 |
| 4003728 | Method and apparatus for controlling the storage condition of perishable commodities in long-distance transport vehicles A method and apparatus for transporting perishable commodities provides recirculation of moisture saturated air at a predetermined optimum storage temperature through the cargo from bottom to top of individual van containers. Temperature sensors are provi... | 01/18/1977 |
| 4001682 | Ambiguity free digital averaging phase meter The inherent phase ambiguity that results from the measurement of the phase difference between a reference signal and a data signal having a zero phase relationship is eliminated by adding 360° to phase differences between 0° and 180°. Phase difference... | 01/04/1977 |
