Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 4282814 | Dual-end warhead initiation system A detonation initiator for use in explosive warheads to cause dual-end ination of the explosive within the warhead. An initiation transfer tube positioned interiorly and centrally within the warhead explosive contains a primary ignitor attached to a plur... | 08/11/1981 |
| 4236159 | Passive direction finding system A passive direction finding system incorporating at least one set of spacapart antennas, the incoming signal at one antenna being coupled through a delay line having a multiplicity of taps thereon, a plurality of channels equal in number to the number of... | 11/25/1980 |
| 4187761 | Variable force control system for weapon ejection mechanisms A variable force control system for weapon ejection mechanisms wherein vable ejection forces are applied after measurement of inflight aerodynamic forces on the weapon and thereupon selecting power from one or more fluid power sources of equal or unequal... | 02/12/1980 |
| 4184767 | Frequency agile optical radar A frequency agile optical radar system including a frequency agile laser rce coupled with an extra-cavity dispersive element in such a manner as to radiate into space specific optical frequencies correlated with specific elevation angles measured from th... | 01/22/1980 |
| 4141274 | Weather modification automatic cartridge dispenser A weather modification cartridge dispenser for automatically igniting and spensing pyrotechnic weather modification rounds wherein the dispenser is basically a motor driven automatic spring powered gun.... | 02/27/1979 |
| 4137712 | Fluidic combustion control of a solid fuel ramjet Fluidic combustion control of a ramjet by injecting a fluid into the base recirculation region to reduce the critical injection parameter, or to shut down the ramjet without affecting the hot air flow.... | 02/06/1979 |
| 4138401 | [3,2-g] Pyranoquinoline derivatives 2-Keto-6,7,8,9-tetrahydro-2H-pyrano(3,2-g)-quinoline and 2-keto-9-methyl-,8,9-tetrahydro-2H-pyrano(3,2-g)-quinoline, compounds useful as laser dyes, are prepared from 7-hydroxy-1,2,3,4-tetrahydroquinoline.... | 02/06/1979 |
| 4133173 | Ducted rockets The overall efficiency of a reaction engine having primary and secondary combustion chambers is greatly improved by reducing the primary exhaust velocity to subsonic speed. This is accomplished in a preferred embodiment by using an exhaust tube downstream... | 01/09/1979 |
| 4129252 | Method and apparatus for production of seeding materials A method and apparatus is provided for production of ice nuclei by generation of homogenous nuclei in nozzle or orifice expansions. The homogeneous nuclei are formed in the rapid cooling of vapors by rapid expansion through a supersonic nozzle or an orifi... | 12/12/1978 |
| 4128774 | N cycle gated periodic waveform generator A gated waveform generator programmable to produce an output having a preermined number of cycles. A triggering pulse and the output from a zero-crossing detector are connected to different inputs of a bistable multivibrator. The triggering pulse causes ... | 12/05/1978 |
| 4125728 | Method for preparing 2,3,7,8-tetraazaspiro[4,4]nona-2,7-diene Synthetic routes to 2,3,7,8-tetraazaspiro[4,4]nonane, its bispicrate salt, 2,3,7,8-tetraazaspiro [4,4]nona-2,7-diene, and 3,8-dicarbomethoxy:2,3,7,8-tetraazaspiro[4,4]nona-1,6-diene. Thecompounds are useful as high density fuels.... | 11/14/1978 |
| 4124976 | Method for reducing the critical injection parameter in a solid fuel ramjet A method and system for reducing the critical injection parameter (h/D.su) in a solid fuel ramjet (SFRJ) by using a low h/Dp fuel within the recirculation region of the grain and a higher h/Dp fuel for the majority of the grain to r... | 11/14/1978 |
| 4124297 | Ultrafast scanning spectrophotometer A scanning spectrophotometer employes fixed optics to produce a dispersion f optical energy. The dispersed optical energy is scanned by a fixed position surface acoustic wave photoelectric transducer. The scan rate of the surface acoustic wave photoelectri... | 11/07/1978 |
| 4124657 | Room temperature cured elastomer Hydroxy terminated polybutadiene is reacted with naphthyl-potassium and 1omo-2,4-pentadiene in successive steps to form a bis(1,3-pentadienyl ether) derivative. Then the bismaleimide of dimer diamine is added to the polybutadiene derivative whereby a roo... | 11/07/1978 |
| 4123939 | Thermal standard The invention disclosed is a device capable of sensing and recording the al thermal energy received by an object in a given location. The device can sense the energy received from any direction by any source of thermal energy. The sensors are attached to... | 11/07/1978 |
| 4123728 | Electrogenerated chemiluminescent (ECL) laser A laser using electrogenerated chemiluminescence wherein an organic dye lasing solution is made to flow through or over alternately charged electrodes to charge the dye molecules which are then hydrodynamically diffused to maximize the production of excit... | 10/31/1978 |
| 4122754 | Dependent sway bracing weapon restraints Automatic sway brace mechanism for restraining stores mounted on an aircraft. Cam actuated paired sets of sway braces terminating in store engaging pads are arranged to provide a positive self-centering force equalization arrangement wherein said sway bra... | 10/31/1978 |
| 4122412 | Magneto-optically tuned lasers Stripe-domain light deflectors are used within a lasing cavity. Magnetic trol of the deflectors permits tuning of the laser light to any wavelength in the range of light present.... | 10/24/1978 |
| 4121496 | Gun pod stationary blast diffuser A stationary blast diffuser for a Gatling type gun incorporating a ball bing gas seal at the front of the barrel cluster, resulting in a reduced dispersion pattern, the ball bearing gas seal being configured to allow the barrel cluster to rotate and reci... | 10/24/1978 |
| 4118930 | Filter-cooler A filter-cooler is provided for use with a rocket motor to cool and filter ighly aluminized hot gases from around 5800° F. to around 2000° F. The cooled and filtered gases are then usable, for example, in thrust vector control or other mechanisms associa... | 10/10/1978 |
| 4119917 | Sequentially triggering two or more hydrogen thyratrons with precision timing Two or more hydrogen thyratrons sequentially triggered with precision timing. The first tube is triggered and provides a long, low power, slowly rising pulse to a load. Approximately midway in said pulse the second tube is made to conduct, providing a sho... | 10/10/1978 |
| 4118675 | Laser tuning with an acousto-optic lens A pulsed laser having a laser gain medium of broadband output is tuned to essentially monochromatic output. An acousto-optic cell is driven with an acoustic wave which varies linearly in frequency, causing the laser beam to be resolved into a number of es... | 10/03/1978 |
| 4117271 | Inductive communication system An apparatus providing multiple conversations over limited range. Pseudo-se modulations and specific address coding permit multiple conversations between a base station and several vehicles or between the vehicles. A variable power source gives even grea... | 09/26/1978 |
| 4115999 | Use of high energy propellant in gas generators Thin pieces of high energy propellant are potted in a potting material such s isocyanates cured hydroxy terminated polybutadiene, hydroxy terminated polybutadiene, polyurethane, polyester or polysulfide so that they will primarily end burn. The result is a... | 09/26/1978 |
| 4115167 | Castable binder for cast plastic-bonded explosives A castable binder for plastic bonded explosives is disclosed. The binder is ade up of 42 parts by weight of one unsaturated polyester resin, 30 parts by weight of another unsaturated polyester resin and 28 parts by weight of styrene.... | 09/19/1978 |
| 4110977 | Pyrogen igniter ramjet ignition system An ignition system for initiating combustion in a ramjet engine characterd by a replaceable propellant grain type igniter set into the wall of a ram air tube supplying air and fuel to the engine combustion chamber. The igniter is fitted into a small avai... | 09/05/1978 |
| 4111728 | Gas generator propellants A smokeless gas generator composition with an oxygenated binder such as a polyester or a polyether allows higher binder content with less solid oxidizer additives such as guanidine nitrate or ammonium nitrate and allows the composition to be cast.... | 09/05/1978 |
| 4109998 | Optical sliprings Optical slip rings are disclosed which permit signals to be transferred from a rotating body to a non-rotating body without any physical contact. Fiber optic bundles are utilized to conduct light signals on one body to separate fiber optic bundles on the ... | 08/29/1978 |
| 4109997 | Optical sliprings Optical slip rings which permit signals to be transferred from a rotating dy to a non-rotating body without any physical contact. Fiber optic bundles are utilized to conduct light signals on one body to separate fiber optic bundles on the other body. Ligh... | 08/29/1978 |
| 4109216 | Microwave generator An active radar transmitter is disclosed having both long pulse and short lse operational modes. The transmitter is configured to switch between the operational modes with a minimum of circuitry to permit a single radar system to be used for long-range se... | 08/22/1978 |
| 4108025 | Aircraft head-up display unit mount adjustment tool An alignment tool for adjusting the position of a first body relative to a econd body in a severely limited working space. The tool rigidly attaches to the first body and operates through a fork against a pin which is rigidly fixed to the second body. The ... | 08/22/1978 |
| 4108604 | Analytical method for TNT in water A method for analyzing water for -trinitrotoluene comprising the ss of allowing the water to flow over an ion exchange resin which contains a quaternary ammonium group and observing to determine whether or not a chemical reaction takes place.... | 08/22/1978 |
| 4106906 | Method for suppressing water evaporation using a polybutadiene film A continuous polymer film formed by air-activated cross-linking of polyfuional prepolymers is applied to the surface of a body of water for suppressing evaporation.... | 08/15/1978 |
| 4105258 | Servo type switching for remote automatic braking system A remote autobrake system. A linear accelerometer measures the acceleration f a vehicle to determine if it is having thrust applied to it. If the engine of the vehicle is applying thrust, a servo switch is used to prevent engagement of the brakes. This sys... | 08/08/1978 |
| 4104970 | Electronic ignition system for liquid explosive An electronic ignition system for liquid explosive such as liquid propell ammunition. An SCR is used to provide a long life trigger with high reliability. An inductor is used to limit peak current and lengthen the spark.... | 08/08/1978 |
| 4105953 | Chirped acousto-optic Q switch An improved acousto-optic laser Q-switch utilizing a chirped fm pulse in the acousto-optic cell to diffract and focus the input beam into a resonating high-Q mode. When the rf acoustic pulse is not wholly within the cell the beam is diverted to the output... | 08/08/1978 |
| 4104533 | Wideband optical isolator A linear voltage controlled current sink is used to power a linear LED with fast optical rise time. The signal is transmitted through a small aperture in a grounded shield plate. The receiver is a PIN photodiode with fast optical rise time.... | 08/01/1978 |
| 4103849 | Catapult restraint/release system Apparatus for restraining an aircraft against the combined forces of a cault launching shuttle and aircraft takeoff power during a catapult assisted takeoff until a predetermined combined force level has been reached. Release of the aircraft is triggered... | 08/01/1978 |
| 4101099 | Repeatable release holdback bar A holdback bar for restraining an aircraft temporarily prior to catapult isted launch which utilizes a ball and piston unloader valve to insure rapid, positive release of a pressurized hydraulic fluid. Compensator chambers each having a resilient piston ... | 07/18/1978 |
| 4101098 | Strain actuated hydraulic holdback bar A holdback bar for temporarily restraining an aircraft against the combined orces of engine thrust and catapult force prior to a catapult assisted launch of the aircraft which utilizes strain of a mechanical component to measure the level of combined force... | 07/18/1978 |
