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 |
| 6155784 | Variable pitch aircraft propeller A propeller for aircraft has a tip-to-tip flex-beam spar and torsionally stiff hollow blades bonded to the spar throughout an outer portion of the blades. The spar has two end caps which are separated from each other at the hub and converge in the outer p... | 12/05/2000 |
| 6142247 | Biased nozzle arrangement for rolling cone rock bits An earth boring bit having a cone rotatably secured to a cantilevered bearing shaft and a nozzle that discharges a jet stream of fluid having a high velocity core and a lower velocity skirt. The high velocity core is fully contained in a space bounded by ... | 11/07/2000 |
| 6126225 | Tonneau cover A pick-up truck having a bed with a front wall, two side walls, and a tailgate, has a tonneau cover installed over the bed. The tonneau cover comprises a pair of outer channels, a pair of inner channels, and several panels. Each of the channels has a C-sh... | 10/03/2000 |
| 6109820 | Anchor base for flexible marker A flexible marker assembly and base for traffic control markers or other purposes. The flexible marker assembly includes a substantially vertical flat marker mounted in a receptacle in a base. A first and second longitudinal arcuate surface is provided on... | 08/29/2000 |
| 6101929 | Fryer There is provided a fryer, which can restrain an acceleration of oxidation of an oil layer, prevent deterioration of the oil layer caused by fry sediment and carbide and generation of oil smoke, and which is used easily and safely by even a person who is ... | 08/15/2000 |
| 6098730 | Earth-boring bit with super-hard cutting elements An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and includes a plurality of cutting elements. At least one of the cut... | 08/08/2000 |
| 6082938 | Integral frame and method of manufacture A unitary frame structure is disclosed as well as a method of manufacturing the same. The unitary frame structure typically includes a first beam, a second beam adjoining the first beam, and a cross member adjoining the first beam and the second beam. Sig... | 07/04/2000 |
| 6079966 | Compressor housing A variable capacity, vane-type compressor has a cylinder block with an oval rotor chamber. A plurality of vanes mounted in slots on a rotor rotate inside the rotor chamber on a shaft that is concentric with the minor diameter of the rotor chamber. Valves ... | 06/27/2000 |
| 6077041 | Reduction drive and torque-limiting clutch for autogyro aircraft A rotary wing aircraft has an engine, an engine-driven shaft and a main rotor. A rotor drive shaft is mounted to the main rotor and extends substantially 90 degrees to the engine-driven shaft. A drive pulley is mounted to the engine-driven shaft. A driven... | 06/20/2000 |
| 6076605 | Horizontal tree block for subsea wellhead and completion method A subsea wellhead assembly has a tubular housing having a sidewall, an axial bore, and a housing lateral passage extending from the bore through the sidewall. A blocking sleeve fits around the housing to block the housing lateral passage while drilling th... | 06/20/2000 |
| 6070669 | Adjustable wellhead connector An adjustable wellhead connector is secured to the lower end of a BOP and riser assembly and has a housing which surrounds a groove profile on the upper outer surface of a first wellhead housing. The housing has a window on its inner surface which contain... | 06/06/2000 |
| 6067020 | Apparatus for retarding drowsiness A device for retarding drowsiness has a housing adapted to be worn on a user's head. The device uses a metal pendulum housed within the housing that comes into contact with electrical contacts to complete an electrical circuit to produce an audible alarm ... | 05/23/2000 |
| 6065552 | Cutting elements with binderless carbide layer An earth-boring bit has cutting elements inserted within holes in the cutter support. The cutting element has a body of a fracture-tough material, preferably tungsten carbide which contains a binder of a soft metal. A layer of a composite carbide which is... | 05/23/2000 |
| 6062314 | Tubing hanger and tree with horizontal flow and annulus ports A well production assembly includes a production tree which has a lateral production passage extending laterally from a vertical bore of the tree. A tubing hanger, also having a lateral production passage, lands in the tree, with the lateral passages regi... | 05/16/2000 |
| 6059768 | Coded intravenous tubing Tubing for use with intravenous delivery of fluids to a patient is provided. The tubing is preferably see-through and includes a tubing wall defining an exterior surface and an interior surface. The interior and exterior wall surfaces define a channel for... | 05/09/2000 |
| 6053263 | Cutting element tip configuration for an earth-boring bit An earth-boring bit has a bit body which connects to a drill string. Three cutters are rotatably secured to a bearing shaft of the bit and a large number of chisel-like cutting elements are secured to each cutter. Each cutting element has a cylindrical ba... | 04/25/2000 |
| 6047702 | Disposable manual fingernail filing apparatus A fingernail file has a cylindrical dowel and a filing implement on each end. The filing implements may be shaped in many different configurations including parabolic, conical or oval, but are symmetrical. Each filing implement has inner and outer layers ... | 04/11/2000 |
| 6039135 | Machine for transport of passengers and cargo An electrically powered vehicle transportation system utilizes a guideway with parallel enclosed rails. Each enclosed rail has an electrical bus bar for supplying power to vehicles on the guideway. The guideway will accommodate dual-mode vehicles that are... | 03/21/2000 |
| 6026917 | Earth-boring bit with improved bearing seal An earth-boring bit has a bit body and at least one bearing shaft depending inwardly and downwardly from the bit body. The bearing shaft has a base where it joins the bit body. At least one cutter is mounted for rotation on the bearing shaft and has radia... | 02/22/2000 |
| 6024325 | Rotor for rotary wing aircraft A rotor for rotary wing aircraft has a tip to tip flex-beam spar and torsionally stiff hollow blades bonded to the spar throughout the tip-most portion of the blades. The spar spaced-apart spar caps which have a dual beam cross section in the region not b... | 02/15/2000 |
| 6024135 | Flexible high pressure pipe A high pressure subsea pipe, particularly for underwater use, has the ability to flex while being transported and installed. The pipe has a friction reinforcement structure made of overlapping layers increasing substantially the capacity of the pipe in lo... | 02/15/2000 |
| 6019186 | Disposable stethoscope assembly A thin, disposable shield serves as a sanitary cover as well as a diaphragm for a stethoscope. The shield has a circular line of perforations, resulting in a central disk portion and an outer ring portion. The shield is releasably secured to the rim, pref... | 02/01/2000 |
| 6006866 | Elevator door restrictor An elevator is provided with a car and inner and outer doors. The inner door registers with one of the outer doors when the car is disposed within a floor zone. A solenoid on the car has a plunger for blocking the inner door from opening. Power will only ... | 12/28/1999 |
| 6003439 | Microflake glitter fabrication A metallic flake manufacturing device uses a bearing to form the flakes. The bearing is located within a container which receives a fluid having suspended metallic particles. The bearing has an outer race, an inner race, and a plurality of bearings dispos... | 12/21/1999 |
