Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 6071276 | Cell transfection apparatus and method An apparatus and associated method provides for the application of a cell treatment agent, such as genetic material or drugs to be inserted within the cells of a patient in vivo. The apparatus may be a catheter arrangement with various embodiments for app... | 06/06/2000 |
| 6059624 | Screen and driver assembly for screen pixels The display screen (11) is made of pixels (P) connected to one edge (11a) of the screen by wires (12) separated by a given pitch (s) so as to be controlled by respective terminals (18) of integrated circuits (16) outside the screen. The terminals (18) of ... | 05/09/2000 |
| 6042497 | Variable speed transmission A mechanical assembly is operable as a variable speed transmission. The output shaft has a rotational force at speeds variable from an input applied to an input shaft. The mechanical assembly is a transmission device using a "positive traction" effect wit... | 03/28/2000 |
| 5975533 | Labyrinth-type seal for railway car journal bearing A sealed shaft bearing assembly employs a lubricant seal having a rigid seal case supporting a resilient dust seal in rubbing contact with a cylindrical surface on the shaft, and a labyrinth type primary seal between the dust seal and the interior of the ... | 11/02/1999 |
| 5942834 | Thermionic electric converters An improved thermionic electric converter uses a wire grid cathode to provide a larger surface area for electrons to boil off. Alternately or additionally, the larger electron emission surface area can be achieved by using a curved electron emission surfa... | 08/24/1999 |
| 5928476 | Nonrecovery coke oven door A coke oven door for closing the open end of an elongated coking chamber of a nonrecovery coke oven, including process air vents extending through the door at a level above a coal charge to be coked, has a structural frame on its outer surface including a... | 07/27/1999 |
| 5923694 | Wedge side pumping for fiber laser at plurality of turns A pumped fiber laser including turns of optical fiber defining a wound pack, wherein the optical fiber includes a core, a cladding around the core and a concentric layer of a porous glass matrix material, such as sol-gel, around the cladding. The fiber la... | 07/13/1999 |
| 5915291 | Reactive ballistic protection device The protection device according to the invention comprises a primary and a secondary coil facing each other. Current flow through the primary coil induces magnetic fields which repel each other, so that the two coils are jerked apart and a missile is proj... | 06/22/1999 |
| 5911074 | Process for manipulating data models used in software engineering The present invention relates to a process for manipulating data models for the transfer of models between a plurality of software engineering tools (Ta, Tb, Tc, Td, etc.) and for the application of transformation rules to a model, wherein the transformat... | 06/08/1999 |
| 5908241 | Coil impeller mixing device A mixing device for mixing flowable materials in a container employs an elongated shaft having one end adapted to be connected to a power source and the other to be inserted into the material, with a pair of elongated, generally helical open centered coil... | 06/01/1999 |
| 5895400 | Catheter with bristles A system and method removes material from the wall of a passage, such as a vein or artery, in a patient's body with a series of bristles that are rotated. The bristles are part of a sweep catheter having a proximal end and a distal end with a tip thereon.... | 04/20/1999 |
| 5889272 | Coupler for managing communication between a portable data medium and a data exchange device, and data exchange device therefor A coupler for managing communication between a portable data medium and a data exchange device. The coupler includes bistable control circuitry (25) input-activated by at least two control signals (DTR, RTS) delivered by the data exchange device in one of... | 03/30/1999 |
| 5881677 | Solid and liquid waste collection device A liquid-absorbing, rot-, chemical-, and skid-resistant mat fastened to an inner folding frame held in place within the area of use by an outer frame adapted to be secured to any surrounding wall. The inner frame is foldable and includes attachments by wh... | 03/16/1999 |
| 5836407 | Articulated tool for drilling oil, gas geothermal wells The invention relates to a tool for drilling oil, gas or geothermic wells. The tool includes two main members, a hollow shaft (1) and a blind tool body (2) more elongate than conventional tool bodies; the two main members are spherically connected to each... | 11/17/1998 |
| 5798861 | Information presentation device using a sheet of rolled material The invention relates to an information presentation device which includes a sheet of material rolled onto a drum, with the drum being contained in case. The case includes an area for housing at least one element of a pole, and the housing area also has a... | 08/25/1998 |
| 5794789 | Semi-automated integrated sort system Inter-related devices and methods to increase sort productivity, provide for the ready integration of shipment data into a central computer system, permit centralized management and control over multiple autonomous sort operations, and integrate materials... | 08/18/1998 |
| 5796860 | Method for decomposing scintigraphic images into total absorption and diffused components A method of decomposition into one component {f1 }, called the total absorption component, and one component {fk } called the diffused component of energy spectra {ti } for N image elements i of a scintigraphic image. The ... | 08/18/1998 |
| 5790675 | Cryptographic communication process A novel asymmetrical cryptographic schema which can be used for enciphering, signature and authentication. The schema is based on low degree public polynomial equations with value in a finite ring K. The mechanism is not necessarily bijective. The secret key m... | 08/04/1998 |
| 5782824 | Cardiac catheter anchoring A catheter uses a steerable outer catheter with an inner catheter rotatable and extendable with respect to the outer catheter. The outer catheter may be positioned within a patient's heart and a portion of the outer catheter may provide movement like that... | 07/21/1998 |
| 5784556 | Analyzer using control graph for system call function and lists of lock applications for all possible synchronizations of processes to analyze risks of blocking operation The invention relates to a static analyzer of the risks of blocking the operation of a system. The analyzer produces lists of lock applications associated with allocations of the resources of the system which conform to Coffman conditions. The analyzer al... | 07/21/1998 |
| 5773843 | Metal electrode for superconducting current path formed of oxide superconductor material and superconducting device utilizing thereof A metal electrode disposed on a surface of an oxide superconductor and forming electric contact with the oxide superconductor wherein at least a portion of the metal electrode is in contact with a side surface of the oxide superconductor which is perpendi... | 06/30/1998 |
| 5769843 | Percutaneous endomyocardial revascularization A system and method for percutaneous myocardial revascularization uses laser energy emitted from the distal end of a catheter. A technique for controlling beam direction allows the creation of channels in a patient's heart tissue with the channels having ... | 06/23/1998 |
| 5740283 | Digital video compression utilizing mixed vector and scalar outputs Interframe compression of moving image data is achieved by a combination of vector coding and scalar coding of transform coefficient differences formed by the subtraction of previous image transform coefficients from corresponding present image transform ... | 04/14/1998 |
| 5734248 | Current modulation motor controller An apparatus for controlling the speed of an induction motor includes a first winding and a second winding. The first winding and second winding are adapted to be coupled to an AC source for supplying an AC input signal. A first switching device is couple... | 03/31/1998 |
| 5729609 | Method for producing a common key in two devices, in order to implement a common cryptographic procedure, and associated apparatus The invention relates to a method and an apparatus for producing a key that is common to two devices that belong to different sets and are intended to implement a common cryptographic procedure. Each device is assigned a mother key (KC, KP) and a daughter... | 03/17/1998 |
| 5721196 | Stacked tunneling and stepped grain boundary Josephson junction A Josephson junction device comprises a single crystalline substrate including a principal surface, an oxide layer formed on the principal surface of the substrate having a step on its surface and an oxide superconductor thin film formed on the surface of... | 02/24/1998 |
| 5719971 | Strain based optical fiber systems Optical systems use tuning of in-fiber gratings to provide an optical crossbar switch matrix of switch elements. The switch elements have a drop tap and an insert tap. A combination of the switch matrices provides a flexible way of connecting any of a plu... | 02/17/1998 |
| 5713663 | Method and apparatus for mixing concrete in a concrete mixing device to a specified slump A method and apparatus for mixing concrete in a concrete delivery mixing truck is provided which can yield a mix with an approximate required slump. This is achieved by monitoring the torque loading on hydraulic drive which rotates a mixing barrel and not... | 02/03/1998 |
| 5701149 | Method to optimize the operation of an ink-jet printer, and a printer using such a method Disclosed is a method to optimize the operation of an ink-jet printer provided with a circuit to collect the ink not used for the printing, comprising a gutter connected to an imperviously sealed ink tank by a conduit placed in a state of depression by a ... | 12/23/1997 |
| 5687949 | Gas flow regulator valve An improved fluid control valve assembly employing a needle valve integrally formed on a non-rotating valve stem includes a metering orifice for engaging and forming a fluid seal with the valve needle, and a generally radially extending end face on the va... | 11/18/1997 |
| 5686394 | Process for manufacturing a superconducting composite A continuous method for manufacturing an elongated superconducting campsite composed of a superconductor consisting of compound oxided and a metal sheath surrounding the superconductor, including the steps of kneading a material powder of superconducting ... | 11/11/1997 |
| 5682445 | Strain based optical fiber devices Optical fiber devices include optical fibers having grating portions with in-fiber gratings having optical characteristics which are changed by the use of strain inducing members. The strain inducing members are connected to optical fibers in such a way t... | 10/28/1997 |
| 5677535 | Gamma camera with approach and safety planes Disclosed is a gamma camera having a base movable on a frame and at least one arm that is movable with respect to said frame and is provided, at one free end, with a plane detector. This camera further comprises two approach planes that are substantially ... | 10/14/1997 |
| 5657570 | Device for maintaining the inner surface of gun barrels and method for producing same A device to clean inner surfaces of gun barrels includes a movable member. The member has an elongate body with two ends. The body has an essentially uniform cross section such that the body can be loosely fitted within a barrel of a given inside diameter... | 08/19/1997 |
| 5651786 | Mapping catheter and method A catheter uses a steerable outer catheter with an inner catheter rotatable and extendable with respect to the outer catheter. The outer catheter may be positioned within a patient's heart and a portion of the outer catheter may provide movement like that... | 07/29/1997 |
| 5651785 | Optical fiber catheter and method A catheter uses a steerable outer catheter with an inner catheter rotatable and extendable with respect to the outer catheter. The outer catheter may be positioned within a patient's heart and a portion of the outer catheter may provide movement like that... | 07/29/1997 |
| 5643951 | Compositions comprising carbonate/bicarbonate buffered dichloroacetic acid and methods for treatment of metabolic and cardiovascular disorders Methods for the treatment of metabolic and/or cardiovascular disorders comprising administering to a human in need thereof a therapeutically effective amount of a composition comprising dichloroacetic acid or a pharmaceutically acceptable salt or derivati... | 07/01/1997 |
| 5630642 | Convenience table for furniture A table assembly includes a table top and support arm which are stored within an arm rest of a recliner when the table is not in use. When the table is to be used, the support arm pivots up and the table top is connected to the support arm. The table top ... | 05/20/1997 |
| 5621793 | TV set top box using GPS An integrated receiver decoder (IRD), commonly called a set-top box, has a global positioning system (GPS) receiver. The GPS receiver checks to see if the IRD is at an authorized location and allows descrambling of video signals only if the location is au... | 04/15/1997 |
| 5620439 | Catheter and technique for endovascular myocardial revascularization A laser treatment device provides an output operating laser beam having a single wavelength which is highly absorbed by tissue of a patient and which beam is non-diverging. The laser treatment device may be a catheter which is inserted into a patient for ... | 04/15/1997 |
