Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 4868573 | Line frequency slaved voltage-to-frequency converter system The system includes a synchronous voltage-to-frequency converter connected to receive an analog input signal voltage and to generate a train of output pulses. A counter is connected to receive and count the output pulses and a digital register is connecte... | 09/19/1989 |
| 4856319 | Thermally switchable katharometer A gas chromatography system having a chromatography column, a detector for analyzing sample components with a detection chamber connected to the column outlet, and a switching assembly for selectively alternately filling the detector chamber with carrier ... | 08/15/1989 |
| 4837441 | Ionization detectors for gas chromatography An ionization detector for gas chromatography employs as an electron source a film (66) of gold deposited on an ultra-violet lamp (64) within a cylindrical glass body (60) closed at the ends by PTFE plugs (62 and 68). A jet anode (72) receiving effluent f... | 06/06/1989 |
| 4831640 | Illumination system for x-ray lithography This invention is directed to an improvement in an x-ray lithography system having an x-ray point source of radiation, a wafer disposed in spaced relationship with respect to the source, and a mask disposed between the source and the wafer whereby radiati... | 05/16/1989 |
| 4804978 | Exposure control system for full field photolithography using pulsed sources A photolithography exposure control system tolerant of noisy pulsed light sources having a controllable variable attenuator. A detector monitors the exposure dose of a light pulse enabling a controller to trigger another light pulse, when a predetermined ... | 02/14/1989 |
| 4735505 | Assembly for adjusting an optical element An assembly having a compensator plate positional control mechanism includes an optical beamsplitter and a compensator plate which plate is pivoted to vary the pathlength of beams passing therethrough. By varying these pathlengths, the arms of an interfer... | 04/05/1988 |
| 4729124 | Diagnostic system The present invention is directed to a diagnostic system which utilizes a microprocessor within the power module to control the diagnostic function of all field replaceable modules powered thereby; additional diagnostic hardware being located on each repl... | 03/01/1988 |
| 4716525 | Peripheral controller for coupling data buses having different protocol and transfer rates A peripheral controller is provided for controlling data transfers between peripheral devices operably on one type of data bus to devices operable on a second data bus. An intermediate buffer is utilized so that data is read into one memory block from the... | 12/29/1987 |
| 4698585 | Apparatus for identifying the connection position of a wire having two modes of operation A fixture is provided for holding a cable end connector to which wires are to be attached. The fixture includes an indicating element for each of the connection elements of the connector to be wired. A separate fiber-optic cable extends from each indicati... | 10/06/1987 |
| 4697087 | Reverse dark field alignment system for scanning lithographic aligner An alignment apparatus wherein a wafer having a wafer target thereon and a reticle having a reticle target therethrough are aligned to each other. An alignment image is formed on the wafer, and the wafer and reticle are scanned relative to the alignment i... | 09/29/1987 |
| 4694194 | Power supply with battery backup A pulsed power supply having a filter output and a battery backup includes electronic apparatus to sense when the AC source is failing. When the pulsed supply output has the same pulses as that which would be produced by the battery, the supply switches t... | 09/15/1987 |
| 4693569 | Method and apparatus for optical system adjustments Described is a method and apparatus for adjustment of an image-forming optical system to correct for manufacturing and assembly defects by providing a pair of refractive elements symmetrically disposed about the image plane or conjugate image plane of the... | 09/15/1987 |
| 4653019 | High speed barrel shifter A multi-function high speed barrel shifter comprising three functional levels. The first level performs 1/4 word shifts by a selectable amount. The second level performs 1/8 word shifts on the portion of the word to be shifted and, where desired, fills th... | 03/24/1987 |
| 4644323 | Analog-to-digital converter having programmable dynamic range A programmable timer controls the duration of integration with respect to time of an unknown analog signal in accordance with a programmable time period established by a microprocessor. A switching logic successively transfers an analog signal and a volta... | 02/17/1987 |
| 4640677 | Gas control device for controlling the fuel gas and oxidizing agent supply to a burner in an atomic absorption spectrometer The present invention is directed to a gas control device for controlling the fuel gas and the oxidizing agent supplied to a burner in an atomic absorption spectrometer, which includes a first restrictor and a first pressure regulator for the fuel gas lin... | 02/03/1987 |
| 4638446 | Apparatus and method for reducing topographical effects in an auger image A system for producing an Auger image which is substantially independent of the topographical contour of the sample surface includes at least two counting means. Preferably, the two counting means are adapted to be dedicated counters, one for background i... | 01/20/1987 |
| 4625819 | Vertically stable friction-free microbalance The microbalance includes a mounting having two vertically aligned elongated flexible metal tension members, the upper and lower ends of the tension members being attached to a fixed support. The attachment of one end of each of the tension members to the... | 12/02/1986 |
| 4617681 | Bistable aligner cartridge foot The present invention is directed, in an X-ray lithographic system characterized by a plurality of work stations, a cartridge, apparatus for mounting a wafer and a mask on the cartridge, a system for moving the cartridge between stations, apparatus in eac... | 10/14/1986 |
| 4610020 | X-ray mask ring and apparatus for making same The present invention is directed to a new and improved X-ray mask ring assembly and apparatus for making same which includes a mask ring, a plurality of kinematic mounts for removably mounting the mask on an alignment cartridge, each of the kinematic mou... | 09/02/1986 |
| 4606643 | Fine alignment system The present invention is directed to method and apparatus for determining the resolution and range of the mask and wafer stages and the overall accuracy in a lithographic projection system, the system including first indicia disposed on a first member, se... | 08/19/1986 |
| 4606718 | Method and apparatus for shutting down the burner of a flame atomic absorption The flame in a flame atomic absorption spectrophotometer is shut down while using nitrous oxide as the oxidant, without shifting to a different oxidant such as air, by flooding the burner with a substantial excess of nitrous oxide to blow out the flame.... | 08/19/1986 |
| 4606640 | Method and apparatus for optically testing cylindrical surfaces Disclosed is a method and apparatus for optically testing cylindrical surfaces in which a collimated beam of monochromatic light is directed to a variably spaced linear grating which produces two first order cylindrical wavefronts: one, a converging beam ... | 08/19/1986 |
| 4601211 | Multi-port valve in a gas collection system and method of using same A multi-port valve uses a flexible sample tube to selectively intercept gases flowing from inlet ports into a common manifold space. The manifold space is placed under sufficient vacuum to insure that gas samples will be selectively received by the sample... | 07/22/1986 |
| 4587172 | Mirror substrate of atomically substituted Na Zr2 PO12 low expansion ceramic material A low expansion ceramic material has a composition represented by the molecular formula i (Na) j (Zr2-z Na4z) k (P3-x Nax Six)O12 in which the molar proportions i, j and k are each within t... | 05/06/1986 |
| 4586787 | Lens assembly The present invention is directed to a lens assembly which includes a lens element having a front face and a back face and a peripheral edge; a lens cell having an axial bore and a radially inwardly extending lens seat, the lens seat having a radially sea... | 05/06/1986 |
| 4579663 | Apparatus and method for optimizing separation of an unknown sample by liquid chromatography An apparatus and method are disclosed to optimize resolution of unknown samples by liquid chromatography. A plurality of resolution experiments are performed where the solvents in the liquid chromatograph column are changed from one experiment to the next... | 04/01/1986 |
| 4547446 | Motion measurement and alignment method and apparatus The present invention is directed to motion measurement and alignment method and apparatus for use, interalia, in association with optical lithographic systems and more particularly in one form thereof to a method of making a wafer-tool for testing the ma... | 10/15/1985 |
| 4542564 | Method of making electrical connections to thin film coatings Disclosed is a method of making electrical connections to thin film coatings and the electrical connector formed thereby especially useful in a fluid flowmeter. The film with its conductive coating is pressed against a rigid, relatively long, connector ba... | 09/24/1985 |
| 4513905 | Integrated circuit metallization technique A process in the manufacture of integrated circuits in which a barrier layer of Cr or Ti is deposited in a partial atmosphere of N2 in an Ar sputtering gas on a layer of Si so that the N2 is incorporated in the Cr or Ti, after which ... | 04/30/1985 |
| 4509372 | Acoustical wave flowmeter with increased density capability In a flowmeter system having a transducer assembly defining a path for confining the flow of fluid medium there through and with first and second acoustic transducer elements disposed along said flow path for generating and receiving acoustic compression ... | 04/09/1985 |
| 4498010 | Virtual addressing for E-beam lithography A technique performed in a fixed address particle beam lithographic system where the writing is performed in the normal manner for writing a pattern, for example, a stripe on a resist having a selected feature width except that an additional row of altern... | 02/05/1985 |
| 4492669 | Method and means for making a beryllium mirror A uniform reticulated intrastructure (56) is placed in a container (58) and surrounded by beryllium powder (72). After closing the container (58) and applying heat and pressure, a hardened form is taken out of the container. The intrastructure (56) is the... | 01/08/1985 |
| 4473777 | Electron emitter assembly Disclosed herein is an electron emitter assembly for an electron gun which includes a first emitter ring, a second emitter ring, a power supply, connectors for connecting the power supply to the two electron emitter rings so that heating current flows fro... | 09/25/1984 |
| 4469414 | Restrictive off-axis field optical system This invention is directed to a restricted off-axis field optical system having a broad spectral range, which first and second nearly concentric optical subsystems, said subsystems being constructed and arranged with respect to each other so that variatio... | 09/04/1984 |
| 4465759 | Method of fabricating a pellicle cover for projection printing system The invention is directed to a method of fabricating a pellicle cover assembly for use in a projection printing system for forming an image on a radiation sensitive wafer, the method comprising the steps of applying a gold film onto the surface of a wafer... | 08/14/1984 |
| 4433245 | Fraunhofer line discriminator An apparatus for the detection of fluorescence. An airborne optical system carried in an aircraft or spaceship scans a sunlit swath of terrain over a field of view defined by a selected one of the fringe rings of a Fabry-Perot etalon designed to pass a se... | 02/21/1984 |
| 4432468 | Intravenous delivery system An intravenous delivery system for automatically controlling rate of flow of fluid to a recipient. Desired rate of flow is compared with actual rate of flow to produce error signals which are utilized to cause actual rate of flow to equal the desired rate... | 02/21/1984 |
| 4344676 | Single element spherical surfaced optics insensitive to wavelength and temperature These thick elements are all corrected for third order spherical aberration and they are also corrected for spherochromatism (i.e. chromatic variation of spherical aberration) or longitudinal color or both. Most are preferably made of materials of low ind... | 08/17/1982 |
| 4328298 | Process for manufacturing lithography masks A method for manufacturing X-ray lithography masks containing features smaller than 1 micron in size and having conductive or non-conductive substrates. The method involves the initial deposition, as by evaporation, of a very thin coating of a strong X-ra... | 05/04/1982 |
| 4255057 | Method for determining quality of U.S. currency An apparatus for detecting quality of currency or the like. Signals representative of the transmissivity and reflectivity of a bill are subtracted from a signal representative of unity. The resulting signal, which is representative of absorptivity of ligh... | 03/10/1981 |
