Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 6521185 | Fluorescent probes based on the affinity of a polymer matrix for an analyte of interest A highly-sensitive, rapid response fluorescent probe is based on the affinity of a polymer matrix for an analyte of interest. The probe includes a polymer matrix and a dye immobilized in the matrix. The polymer matrix has an affinity for an analyte of int... | 02/18/2003 |
| 6433299 | Monolithic magnetic modules for integrated planar magnetic circuitry and process for manufacturing same Magnetic modules and a process for manufacturing magnetic modules are provided wherein magnetic material is deposited into one or more cavities patterned into a non-magnetic substrate die to form a plurality of magnetic cores. The patterned substrate boar... | 08/13/2002 |
| 6277651 | Diode laser electrochemical sensor for detecting chemical and biological analytes The present sensor allows the user of any diode laser structure to be employed to provide sensitive chemical and biological detector. A diode laser electrochemical sensor is described in U.S. Pat. No. 5,591,407 "Laser Diode Sensor". The present invention ... | 08/21/2001 |
| 6207961 | Loss compensation using digital-signal processing in fiber-optic fluorescence sensors An optical fiber fluorescence sensor system capable of compensating fiber bending loss is provided. The system uses a modulated light-emitting diode and digital-signal processing chips to enhance the measurement of fluorescence signals. A fiber-optic oxyg... | 03/27/2001 |
| 6097477 | Laser speckle strain and deformation sensor using linear array image cross-correlation method for specifically arranged triple-beam triple-camera configuration The invention provides a method of triple-beam and triple-sensor in a laser speckle strain/deformation measurement system. The triple-beam/triple-camera configuration combined with sequential timing of laser beam shutters is capable of providing indicatio... | 08/01/2000 |
| 6051437 | Optical chemical sensor based on multilayer self-assembled thin film sensors for aquaculture process control Optical chemical probes have layers of anionic and cationic polyelectrolytes and one or more dyes incorporated into these layers. The probes are placed into the medium and the dye or dyes react in the presence of the corresponding chemical. Color changes ... | 04/18/2000 |
| 5973441 | Piezoceramic vibrotactile transducer based on pre-compressed arch The vibration and electrical characterization of a piezoelectric tactor actuator is described. The actuator is a rectangular laminated flat plate with two opposite sides simply supported and two others free. Under an axial compression from the supports, t... | 10/26/1999 |
| 5850089 | Modulated-structure of PZT/PT ferroelectric thin films for non-volatile random access memories Modulated-structure polycrystalline or heteroepitaxial multilayers of PZT/PT ferroelectric thin films are deposited on a substrate, preferably by laser ablation. The laser ablation of the PZT/PT layers onto a prepared substrate occurs while maintaining th... | 12/15/1998 |
| 5798828 | Laser aligned five-axis position measurement device A laser-based multi-axis position measurement unit measures position deviations in 5 axes while traversing a 6th linear axis. The apparatus includes three components: 1) a laser-beam unit which emits two parallel laser beams; 2) a sensor unit including at... | 08/25/1998 |
| 5768137 | Laser aligned robotic machining system for use in rebuilding heavy machinery A precision positioning system is used for resurfacing and repairing rails and guideways of large, heavy machinery at users facilities. The system has new components, an entire machining system, a new alignment system, parallel platforms for tool support ... | 06/16/1998 |
| 5766956 | Diode laser-based chemical and biological sensor A-compact, diode laser-based sensor has applications in biological and chemical analysis. Unlike existing optical waveguide-based sensors, no external coupling to external optical fibers or waveguides is required to perform optical chemical, immunological... | 06/16/1998 |
| 5757013 | Fluorescence decay measurement by calculation of inner product An apparatus and its accompanying method measures fluorescence decay, fluorescence amplitude and fluorescence polarization. The instrument includes a light emitting diode or laser diode light source, an amplified photodiode detector, and electronics and s... | 05/26/1998 |
| 5745231 | Method of fluorescence analysis comprising evanescent wave excitation and out-of-plane photodetection Fluorescence measuring methods and apparatus use planar optical waveguides to excite fluorescence in the evanescent field of the waveguides and photodetectors to sense the fluorescence produced. Chemically sensitive fluorophores are bound to the evanescen... | 04/28/1998 |
| 5685721 | Refreshable braille-cell display implemented with shape memory alloys A refreshable braille cell display uses a single moving part per tactile element. Tactile elements, formed from stainless steel tubing, are assembled in densely arranged modules. Lower ends of the tactile elements extend beneath the modules and are in con... | 11/11/1997 |
| 5626670 | Method for producing low thermal budget ferroelectric thin films for integrated device structures using laser-crystallization of spin-on sol-gel films A method for developing large area highly oriented polycrystalline ferroelectric thin films using spin-on sol-gel deposition and laser crystallization techniques that allow for precise control of temperature distribution. The present invention improves qu... | 05/06/1997 |
| 5606633 | Chemical detector employing surface plasmon resonance excited using an optical waveguide configured as an asymmetric waveguide coupler A highly sensitive surface plasmon waveguide sensor monitors the refractive index and thickness of thin adsorbed films. The sensor includes an optical waveguide formed by ion-exchange in a glass substrate, by selective densification of substrate material ... | 02/25/1997 |
| 5591407 | Laser diode sensor A chemical sensor uses a semiconductor diode laser having a surface active region. A laser structure, including an active layer, a cladding layer, a barrier layer and a grating layer, is constructed on a substrate. A contact layer is deposited on a surfac... | 01/07/1997 |
| 5577137 | Optical chemical sensor and method using same employing a multiplicity of fluorophores contained in the free volume of a polymeric optical waveguide or in pores of a ceramic waveguide A fluorescent sensor for chemical analysis has a light source, an optical waveguide, and a detector. Fluorophores are associated with the optical waveguide. When an impervious waveguide is used, a fluorophore-containing layer is applied to a surface of th... | 11/19/1996 |
| 5534071 | Integrated laser ablation deposition system A laser ablation deposition system includes a movable platform for supporting ferroelectric target material and a support structure for supporting a thermally sensitive semiconductor substrate within a chamber mounted on a moveable cabinet, and a laser fo... | 07/09/1996 |
| 5514337 | Chemical sensor using eddy current or resonant electromagnetic circuit detection An instrument is applied to the measurement of chemical species and concentration through the use of a chemically-sensitive coating on the eddy current coil or in the vicinity of the eddy current coil which produces a change in impedance of the probe thro... | 05/07/1996 |
| 5427823 | Laser densification of glass ceramic coatings on carbon-carbon composite materials Alumino-silicate glass-ceramic coated carbon-carbon composite and graphitic substrates having resistance to oxidation and thermal cycling. The coatings are fabricated from plasma-sprayed powders of beta-spodumene, cordierite, beta-eucryptite or beta-quart... | 06/27/1995 |
| 5415943 | Wood composite materials and methods for their manufacture Wood composite materials containing veneer layers interposed with a thermoplastic adhesive containing a polyester such as polyethylene terephthalate and other thermoplastic polymer show increased impact resistance. The composite material may be manufactur... | 05/16/1995 |
| 5407119 | Laser brazing for ceramic-to-metal joining The laser brazing of the present invention offers the unique advantage of producing a high temperature hermetic bond while limiting the heat affected zone to the region of the joint. Laser brazing joins infrared (IR) and radio frequency (RF) ceramic mater... | 04/18/1995 |
| 5150175 | Optical imaging system for fabric seam detection A non-contacting optical imaging system for seam or other periodic pattern detection for a web of material such as a strip of fabric is disclosed in which a line scan camera is used to capture a seam or other periodic pattern image and the electrical outp... | 09/22/1992 |
| 5055784 | Bridgeless system for directly measuring complex impedance of an eddy current probe An all digital eddy current measurement system is described and illustrated in which an eddy current probe is driven by a driving signal and voltage signals representing the current through and voltage across the probe coil are used to calculate the magni... | 10/08/1991 |
