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 |
| 4559447 | Translation/rotation positioning device This is a device that enables one to control the translation and rotation of an element relative to a light beam. The device has a rotatable member having a plurality of position-identifying circumferentially spaced openings therein as well as an aperture... | 12/17/1985 |
| 4552831 | Fabrication method for controlled via hole process A method for forming via holes having a rounded sidewall profile includes exposing a layer or organic positive photoresist to a formic gas plasma while the surface of the photoresist layer is bombarded with ions and electrons in a high voltage biased envi... | 11/12/1985 |
| 4552441 | Color display from a single light valve A color display is produced by overlaying two images from a single light valve. Filters are used to select the two primary colors used in the display. The two projection beams are folded and merged onto a dichroic mirror where they combine so that they fo... | 11/12/1985 |
| 4547044 | Beam-folding wedge tunnel An apparatus forming a wedge shaped mirror tunnel makes the intensity distribution across a light beam uniform. A light beam is directed along a predetermined path through a cylindrical lens to focus the beam to a line at a particular point P. A plane mir... | 10/15/1985 |
| 4540244 | Opto-optical light deflector/modulator An opto-optical light deflector/modulator has means for providing first and second coherent wave fronts of wavelength (λ0) to travel in a transparent optical active medium to produce an optically generated standing wave that induces a periodic... | 09/10/1985 |
| 4523847 | Frequency modulation-polarization spectroscopy method and device for detecting spectral features A method and device for detecting dichroic and/or birefringent narrow spectral features in a sample is described. The method includes the steps of providing a beam of light having an optical frequency bandwidth which is narrow compared to the width of the... | 06/18/1985 |
| 4511430 | Control of etch rate ratio of SiO2 /photoresist for quartz planarization etch back process A method of controlling the etch rate ratio of SiO2 /photoresist (PR) in a quartz planarization etch back process involves etching with a gaseous mixture containing CF4 and either CHF3 or Cx Fy with x... | 04/16/1985 |
| 4500840 | High speed, power potentiostat/galvanostat with IR compensation for use with an electrochemical cell An electrochemical instrument for use with an electrochemical cell that provides IR compensation while operating as either a galvanostat or a potentiostat. The instrument includes an electronic circuit having two output terminals, an input differential am... | 02/19/1985 |
| 4498039 | Instrument for use with an electrochemical cell An improved instrument for use with an electrochemical cell that provides a system having enhanced stability and increased bandwidth. The instrument includes a voltage to current converter which drives the cell. The current output of the voltage to curren... | 02/05/1985 |
| 4497534 | Holographic optical head A holographic optical head for imaging a laser diode for optical storage or magnetic tracking applications includes three holograms, a beam director and a quarter-wave plate. In a preferred embodiment the beam director is a fourth hologram. The holographi... | 02/05/1985 |
| 4475037 | Method of inspecting a mask using an electron beam vector scan system An electron beam fabricated mask used in the production of integrated circuits is tested by a method that includes the steps of forming a print of the mask and then inspecting the print by writing the same electron beam pattern or complement thereof on th... | 10/02/1984 |
| 4473602 | Palladium activation of 2.5% silicon iron prior to electroless nickel plating A method for electroless nickel plating of silicon-iron which has been heat treated prior to the plating operation and subjected to thermal shock after the plating operation includes the steps of cleaning the surface of the silicon-iron with a fluoride et... | 09/25/1984 |
| 4458335 | Detector structure for ion-implanted contiguous-disk bubble devices A detector structure for contiguous-disk bubble devices has a non-ionimplanted elongated bar, a hairpin conductor and a thin-film magneto-resistive element. The elongated bar is positioned in spaced relation to a large period element at the end of a propa... | 07/03/1984 |
| 4441166 | Passive annihilator for contiguous-disk bubble devices A passive annihilator for ion-implanted contiguous-disk bubble devices has a deep cusp formed by two narrow, non-implanted regions. This annihilator has a maximum bias field margin and drive field margin, and is compatible with other components which comp... | 04/03/1984 |
| 4437897 | Fabrication process for a shallow emitter/base transistor using same polycrystalline layer A method for fabricating a high performance bipolar device having a shallow emitter and a narrow intrinsic base region is described. The method uses a minimum number of process steps. The method involves providing a silicon semiconductor body having regio... | 03/20/1984 |
| 4436378 | Passive display module and system A passive display module for use in a display system having a source of illumination and a projection lens includes a liquid filled cell having a transparent top and a wall surrounding a display electrode area. A side light guide, coextensive with the dis... | 03/13/1984 |
| 4432597 | Transmissive holographic optical element on aberrating substrate An inexpensive, high quality transmissive holographic optical element and method for making same are described. The holographic optical element consists of a potentially aberrating substrate which supports a layer of holographic recording material. The ma... | 02/21/1984 |
| 4428676 | Optical system for oblique viewing An optical system for the oblique viewing of an object includes a specific embodiment for quantitatively determining the volume of solder mounds on chips and wafers without the introduction of keystone distortion and anamorphosis. The optical system inclu... | 01/31/1984 |
| 4427267 | Metal diphthalocyanine electrochromic displays and electrolytes therefor The lifetime of a metal diphthalocyanine electrochromic display can be substantially extended by employing a predominantly non-aqueous low hydroxyl ion electrolyte. A preferred electrolyte solvent is ethylene glycol and preferred conductivity salts are te... | 01/24/1984 |
| 4426643 | Electrolytic apparatus having a stable reference electrode and method of operating such apparatus Electrolytic apparatus employing a reference electrode, e.g. an electrochromic display of the type employing potentiostatic control of write or erase operations, has at least one reference electrode on which a predetermined coating thickness of electrochr... | 01/17/1984 |
| 4417943 | Method for controlling the oxygen level of silicon rods pulled according to the Czochralski technique A method for controlling the oxygen concentration profile of a rod of crystalline material such as silicon being pulled from a melt in a crucible includes varying the crucible rotation speed during the pulling process. In a preferred embodiment, the avera... | 11/29/1983 |
| 4415987 | Magnetic bubble passive replicator A passive replicator for bubble devices receives a bubble from an input channel and splits that bubble into two bubbles which go into two separate output channels when a rotating magnetic field is applied. The bubble replicator is a single element which h... | 11/15/1983 |
| 4414647 | Bubble domain replicator for contiguous-disk devices A bubble domain replicator for ion-implanted contiguous disk devices has a cusp portion and a tip portion extending substantially away from the cusp portion so that the cusp forms part of a super track and the tip forms part of a bad track. A hairpin cond... | 11/08/1983 |
| 4414649 | Gap tolerant merge element for contiguous-disk bubble devices A gap tolerant merge element insensitive to crystallographic orientation has a first input track with an end portion substantially facing the end portion of a second input track to form a merge region. The straight edge region in the end portion of the fi... | 11/08/1983 |
| 4406997 | Method and means for minimizing the effect of short circuits in flat panel displays A flat panel display device comprising a matrix of X and Y drive lines and a plurality of selecting field effect transistors (FETs) is described. Each FET is selectively operable by applying a potential across a unique pair of X and Y drive lines for cont... | 09/27/1983 |
| 4404652 | Side feed expander A side feed expander for magnetic bubble devices is disclosed. The side feed expander includes a row of expander elements and an input propagation element associated with one of the sides of an expander element in the row of expander elements. In a prefer... | 09/13/1983 |
| 4403305 | Non-data reversing bubble transfer switch for contiguous disks An improved non-data reversing one-way bubble transfer switch for contiguous disks is disclosed. The switch has a conductor arrangement in which one edge of the conductor is substantially concentric with and overlapping with the major loop which is in the... | 09/06/1983 |
| 4402060 | Gap tolerant merge element for contiguous-disk bubble devices A gap tolerant merge element for contiguous-disk bubble devices is disclosed. The merge element includes one input track with a tip portion substantially facing the cusp portion of a second input track to form a merge region. An output track is associated... | 08/30/1983 |
| 4390571 | Boatless point source evaporation method A vapor deposition method of coating substrates with a material involves evaporating the end of a wire or rod made of that same material. The end of the wire is inductively or radiantly heated to form a molten convex miniscus thereon which serves as the c... | 06/28/1983 |
| 4389294 | Method for avoiding residue on a vertical walled mesa A method for eliminating deposited residues, for example polysilicon residue, on vertical silicon dioxide sidewalls that have been reactive ion etched includes reshaping the sidewalls to have a slope of at least +30° relative to the vertical direction of... | 06/21/1983 |
| 4386418 | Conductorless swap gate for ion-implanted contiguous-disk bubble devices A conductorless swap gate for ion-implanted contiguous-disk bubble devices using a folded minor loop and means for reversing the rotation of the rotating magnetic field is disclosed. The bubble device has a major loop, a folded minor loop, a swap gate con... | 05/31/1983 |
| 4386417 | High performance bubble chip architecture A major/minor loop bubble memory system architecture includes a passive replicator in the major loop read channel which is connected by a first path to a mode switch-annihilator and a merge point in the major loop write channel and by a second path to an ... | 05/31/1983 |
| 4376569 | Electrolyte for an electrochromic display An electrolyte for an electrochromic display of the kind in which a persistent colored species of an electrochromic substance in solution is deposited onto a display electrode upon the passage of current therethrough is disclosed. The electrolyte comprise... | 03/15/1983 |
| 4361781 | Multiple electron beam cathode ray tube A multiple electron beam cathode ray tube has a plurality of cathodes in a plane to form an array. Grids on the same substrate are positioned in spaced relation about the cathodes so that a plurality of individually controlled electron beams are formed wh... | 11/30/1982 |
| 4352066 | Method for adjusting the magic angle in NMR experiments A method for adjusting the orientation of the rotation axis for a sample in a nuclear magnetic resonance (NMR) experiment includes using a field gradient in a specific direction with respect to the external magnetic field of the NMR experiment to establis... | 09/28/1982 |
| 4350116 | Holder for liquid phase epitaxial growth A holder for liquid phase epitaxial (LPE) growth which eliminates mesas on the surface of the film is described. The holder has two legs to which a ring is connected. The ring has holding means so that it can hold one wafer or two wafers back-to-back. One... | 09/21/1982 |
| 4350578 | Cathode for etching A cathode for reactive ion etching is provided which improves the etch rate and the uniformity of etching on the object etched. The cathode has a quartz plate with a series of recesses having disks therein of the same material as the object to be etched a... | 09/21/1982 |
| 4347583 | Neel wall segment detection in cross-tie memory systems A method and device for detecting Neel wall segments in a cross-tie memory system involves applying a magnetic field to the Neel wall segments of a given polarity so that these Neel wall segments expand into a transverse domain. The transverse domain is t... | 08/31/1982 |
| 4346457 | Dovetail propagation structure for contiguous disk bubble devices A propagation track for use in contiguous disk bubble devices consists of a plurality of spaced dovetail shaped elements which are connected at one end thereof by a track portion which faces in the direction of and is substantially perpendicular to the (1... | 08/24/1982 |
| 4342098 | Asymmetric sawtooth contiguous disk propagation pattern A propagation pattern for contiguous disk bubble devices consists of a plurality of parallel propagation tracks in which each propagation track is asymmetric. Adjacent propagation tracks are positioned so that the cusps that face each other are aligned th... | 07/27/1982 |
