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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 5624623 | Method of making an inwardly directed projection on a plastic container A thin-walled, cup shaped container molded of polypropylene, or other suitable material, is formed with a tamper-evident band initially positioned outside the lip at the top of the container wall. The lower edge of the band is connected to the container b... | 04/29/1997 |
| 5578007 | Endocardial mapping and ablation system utilizing a separately controlled ablation catheter and method Endocardial mapping and ablation system for introduction into a chamber of a heart formed by a wall and having a passage leading thereto. The system is comprised of a catheter probe having a distal extremity. A plurality of electrodes are carried by the d... | 11/26/1996 |
| 5337404 | Process and system for making computer-aided drawings using a contour inclusion tree associated planar map data structure Process for making computer-aided drawings for applications such as computer-aided engineering (CAE) and computer-aided design (CAD). A drawing is made in the form of a planar map in all steps of its implementation, and the process proceeds iteratively wi... | 08/09/1994 |
| 5224236 | Machine for cleaning paved surfaces Machine for removing residues such as oil, grease and diesel fuel spills from streets, parking lots and other paved surfaces. The machine comprises a mobile supporting vehicle having water supply and recovery tanks forming an integral part thereof. A stea... | 07/06/1993 |
| 5091803 | Magnifying attachment for flashlight with dark field illumination A magnifying attachment for a flashlight body includes an eyepiece viewing portion which when rotated to a 90° open position provides for dark field illumination of a gem specimen. The attachment includes a split resilient band which may be easily slippe... | 02/25/1992 |
| 4980519 | Three dimensional baton and gesture sensor An electronic drum has two or more batons, each baton having a transmitter which transmits a distinct radio frequency signal at a position in space. The electronic drum determines the current X, Y, and Z coordinates of each baton transmitter. To determine... | 12/25/1990 |
| 4967753 | Apparatus, system and method for measuring spatial average velocity and/or volumetric flow of blood in a vessel System for measuring a characteristic of flow of liquid in a vessel of a patient comprising a transducer positioned in a vessel in a patient for supplying ultrasonic energy. The transducer produces a substantially uniform beam which encompasses the vessel... | 11/06/1990 |
| 4906150 | Locking fastener Locking fastener comprising a threaded part such as a bolt or nut and a lock plate which fits over the bolt or nut and is prevented from rotation by engagement with a stationary object such as a protrusion on the part to be secured. The lock plate has an ... | 03/06/1990 |
| 4724333 | Method and means for damping supersynchronous oscillations in an ac power system Damping of supersynchronous oscillations in an ac power system is accomplished by a damping circuit connected between a power line and a system neutral potential. The damping means includes a tuned circuit having a resonant frequency above the system oper... | 02/09/1988 |
| 4718974 | Photoresist stripping apparatus using microwave pumped ultraviolet lamp Apparatus and method for removing organic polymers, such as photoresist, from the surface of an object, such as a semiconductor wafer. The apparatus comprises a microwave energy source and a reaction chamber housing an ultraviolet lamp and a platform for ... | 01/12/1988 |
| 4708162 | Sprinkler control system Self-contained, automated flow control system for use in a water distribution system such as a sprinkler system. The system has a master valve which controls communication between a supply line and a manifold, and a plurality of control valves which contr... | 11/24/1987 |
| 4680816 | Multiple-ring toilet seat assembly and mounting means A toilet seat assembly arranged to be readily and simply decoupled from a toilet bowl for cleaning includes an improved pivotable mounting assembly whereby forces will not be applied to any significant degree to the pivot pins. Further, the mounting arran... | 07/21/1987 |
| 4672191 | Shadow solar tracking device and system A solar tracking device (10) has a shadow plate (12) mounted above support (14). A first pair of photoresponsive sensors (18) is mounted beneath the shadow plate (12). A second pair of photoresponsive sensors (20) is also mounted beneath the shadow plate ... | 06/09/1987 |
| 4614989 | Helical band drive for disc storage apparatus A disc drive includes a stepper drive motor for moving a carriage to any desired position relative to a disc. The drive motor rotates a shaft coupled to the carriage through parallel bands which are helically wound on the motor drive shaft. One band is wo... | 09/30/1986 |
| 4455657 | Stable single axial mode Q switched laser oscillator with injection locking A stable high gain laser includes a Q switched multiple axial mode high gain oscillator, an oscillator for generating a stable optical wave at a first frequency, the first frequency being within the band of the multiple modes of operation, and a coupler f... | 06/19/1984 |
| 4354821 | Multiple stage catalytic combustion process and system A process and system for combusting a nitrogen-containing fuel to produce low NOx levels in the exhaust emissions. A stream of the fuel mixed with air is combusted in two or more fuel-rich zones having catalytic beds. The stoichiometry of the m... | 10/19/1982 |
| 4312590 | Optical scanner and system for laser beam exposure of photo surfaces Optical scanning apparatus including a rotating pyramidal mirror scanning wheel with reflector segments for deflecting a laser beam into and away from a doublet mirror roof reflector associated with said scanning wheel. The scanning wheel introduces compo... | 01/26/1982 |
| 4240029 | Apparatus for counting particles in a liquid suspension Apparatus for counting platelets and red blood cells in a whole blood sample includes an aperture type transducer. Alarm techniques are provided for indicating defects in the counting procedure due to excessive noise or red cell fragments, small (microcyt... | 12/16/1980 |
| 4176892 | Method for producing laser plasma tube and product A method and resulting laser tube apparatus constructed from a plurality of components adapted to be arranged in axial alignment and self supporting with respect to each other. The elements are adapted to withstand high baking temperatures and are provide... | 12/04/1979 |
| 4134357 | Pneumatic tire inflation level indicator Pneumatic tire having an integral inflation indicator in the form of interdigitized groups of raised mesas affixed to the sidewall of the casing on opposite sides of the centerline of the sidewall. The two groups pivot apart by flexing of the sidewall und... | 01/16/1979 |
| 4127437 | Process for etching SiO2 utilizing HF vapor and an organic catalyst Process for etching SiO2 with hydrogen fluoride gas, utilizing an organic material such as negative photoresist as a catalyst. In one embodiment, the negative photoresist is applied directly to the portions of the SiO2 to be removed,... | 11/28/1978 |
| 3984133 | Connector assembly A connector assembly is disclosed for rapidly forming a secure fluid-tight connection in a fluid circuit. The proximal ends of the fittings are adapted for connection with tubing, hose or other fittings of the circuit. An annular connector cap is formed a... | 10/05/1976 |
| 3947704 | Low resistance microcurrent regulated current source A low resistance closed feedback loop regulated current source for supplying a load, the source being of the type including a transistor having input and output electrodes respectively connected between voltage input and current output terminals, and said... | 03/30/1976 |
| 3943554 | Threshold switching integrated circuit and method for forming the same A high speed threshold switching integrated circuit including a transistor and an integrally formed tunnel diode connected in parallel between the base and emitter of the transistor. The heavy doping necessary for the tunnel diode is achieved through the ... | 03/09/1976 |
| 3935412 | Induction heated vapor source Induction heated vapor source particularly suitable for vacuum deposition of thin films utililzing a flat wound work coil fabricated of a solid conductor enclosed in a hermetically sealed chamber. A cooling medium is circulated through the chamber about t... | 01/27/1976 |
