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| Number | Title | Issue Date |
| 6137565 | Bragg grating temperature/strain fiber sensor having combination interferometer/spectrometer output arrangement An arrangement for simultaneous optical determination of temperature and strain fluctuations in an optical fiber for precisely determining the changes in environmental influences and/or fiber loads is disclosed. The arrangement performs two different meas... | 10/24/2000 |
| 6118569 | Ultra compact scanning system for a wide range of speeds, angles and field depth A non-contact light beam scan system small enough to fit into a hand holdable wand, pen or calculator size terminal incorporates a novel scan element which can scan at rates of ten to hundreds of scans per second in one or two dimensions. The device is im... | 09/12/2000 |
| 6089375 | Composite food and condiment container A composite food and condiment container is provided. The container includes an upper compartment that retains a food product and a lower compartment positioned directly below the upper compartment. The lower compartment holds a condiment. The container f... | 07/18/2000 |
| 6051016 | System and method of controlling pressure in a surgical tourniquet A system and method of controlling the pressure within a surgical tourniquet so as selectively to occlude blood flow within a portion of a limb of a patient, wherein the pressure within an inflatable cuff surrounding a portion of a limb of a patient is ch... | 04/18/2000 |
| 6042508 | Adjustable hand-held exercise weight with pulse detection and remote infrared control An adjustable hand-held exercise weight with pulse detection and remote infrared control is disclosed, including a handle contoured for grasping by a user and having a plurality of buttons thereon, a printed circuit board mounted within the handle, a sens... | 03/28/2000 |
| 6023683 | Electronic sourcing system and method An electronic sourcing system includes a computer that maintains a catalog database of data including product information (such as product identification and descriptive information) relating to catalog items available from vendor product catalogs, and a ... | 02/08/2000 |
| 5987994 | Ultrasonic method for material monitoring An ultrasonic measurement method in an ultrasonic measurement system having an ultrasonic transducer includes emitting an ultrasonic pulse from the ultrasonic transducer. An ultrasonic pulse is received in accordance with a pulse travel time wherein the a... | 11/23/1999 |
| 5978881 | Scalable switcher with detachably securable frame adapter cards for routing audio and video signals A switcher for selectively routing a plurality of input signals to a plurality of output signal ports. The switcher includes a motherboard disposed in a housing, and a switch card for routing ones of the input signals to an output card, wherein the output... | 11/02/1999 |
| 5973318 | Proximity switch system for electronic equipment An externally operable electronic switch which is entirely located within a housing but which is in no way mechanically or physically attached to the inside or the outside of the housing, has no moving parts, nothing to wear out, requires no holes or spec... | 10/26/1999 |
| 5946221 | Method and system for maintaining a desired air flow through a fume hood The present invention pertains to a system for controlling a fume hood with a face. The system comprises a device for controlling air flow through the fume hood based on air flow face velocity. The controlling device has a device for measuring pressure at... | 08/31/1999 |
| 5936715 | On-line method and apparatus for determining the condition of circulating fluids A method and apparatus for determining a condition of a fluid which circulates within a fluid circuit in which the optical characteristics of the fluid change dynamically due to the presence of physical contaminates in the fluid. An optical source is prov... | 08/10/1999 |
| 5932860 | Light beam scanning pen, scan module for the device and method of utilization A high speed non-contact beam scanning device sized and shaped to provide the ergonomic benefits of a pen or wand, yet can scan a wide angle moving beam across an information-bearing target in one or two dimensional scan patterns such as lines, rasters or... | 08/03/1999 |
| 5913763 | Method for controlling the operational modes of a door in conjunction with a mechanical door control mechanism A method for selective alteration and control of door movement modes utilizing an apparatus that is primarily non-hydraulic and incorporated with a known mechanism which is functional independently from the apparatus in one mode of operation and which inc... | 06/22/1999 |
| 5900718 | Battery charger and method of charging batteries A battery charger and method of charging a rechargeable battery which comprises charging the battery with an initial charging current and measuring and comparing the charging temperature to an initial temperature to identify a temperature factor which eit... | 05/04/1999 |
| 5886061 | Polymers capable of reversibly complexing acid gases and foamed polymers produced therefrom Polymers capable of reversibly complexing carbon dioxide and other acid gases and a method of producing such polymers are disclosed. In a preferred embodiment, the present polymers incorporate amine groups capable of reversibly complexing carbon dioxide t... | 03/23/1999 |
| 5884624 | Respiratory mask facial seal An improved flexible respiratory mask facial seal, as well a respiratory mask incorporating such seal. The facial seal comprises an annular member including a peripheral sidewall bounded by an inner end and an outer end generally opposite the inner end. T... | 03/23/1999 |
| 5878743 | Pressure sensitive flow control valve A pressure sensitive valve for a positive pressure airway system which allows bi-directional flow with low resistance. When positive pressure from the air generator of the positive pressure airway system is lost, a spring actuated disc moves away from its... | 03/09/1999 |
| 5871674 | Tower packing element A tower packing element for randomly dumped beds includes a straight leg portion attached at one end to an arcuate portion. The length of the straight leg portion is substantially equal to the length of a cord that extends between the ends of the arcuate ... | 02/16/1999 |
| 5868296 | Electronically controlled high speed press feed capable of being driven in synchronization with a press The present invention provides for a press feed apparatus for use in feeding stock material to a high speed automatic press. The feed roller is driven by a servo motor integral with the shaft of the roller, the feed roller release mechanism is infinitely ... | 02/09/1999 |
| 5864128 | Lens with variable focal length A system and method for scanning a bar code target by continuously varying the focal range of a bar code scanning system. A light source is provided for generating light rays, and a lens is provided for focusing the light rays. The lens has a variable foc... | 01/26/1999 |
| 5863422 | Apparatus for carbon dioxide pretreatment and accelerated limestone dissolution for treatment of acidified water The method of reducing the acidity in effluent discharges comprises charging the effluent with carbon dioxide, intermittently fluidizing and expanding at least one pulsed limestone bed with the charged effluent, treating the charged effluent with the lime... | 01/26/1999 |
| 5851929 | Controlling semiconductor structural warpage in rapid thermal processing by selective and dynamic control of a heating source A method for correcting the shape of a semiconductor structure. According to the method the shape of a semiconductor structure is initially determined to discern the presence, location and magnitude of structural deformities including warp and bow. Inform... | 12/22/1998 |
| 5831282 | Method of producing an HSG structure using an amorphous silicon disorder layer as a substrate A method is provided for forming a hemispherical grain silicon structure on an integrated circuit semiconductor substrate in a processing reactor. The method includes the steps of forming a doped silicon layer upon the semiconductor substrate and forming ... | 11/03/1998 |
| 5823670 | Chemical delivery and on-site blending system for producing multiple products A chemical delivery and on-site blending system for producing multiple products is provided. Generally, chemical subcomponents are fed to a chemical blending system for making a multitude of products at the facility where the products are to be used. Also... | 10/20/1998 |
| 5823114 | Utility distribution system incorporating magnetic levitation vehicle guideways A utility transmission and distribution system includes a guideway for a magnetic levitation transportation system, and supports for supporting the guideway above the ground. The guideway includes a base connected to a structure defining an enclosed chann... | 10/20/1998 |
| 5804506 | Acceleration of etch selectivity for self-aligned contact A method of fabricating an integrated circuit on a semiconductor substrate is provided including the steps of forming a tungsten silicide conductor structure having a nitride encapsulating layer on the substrate and disposing a doped nonconducting layer o... | 09/08/1998 |
| 5794615 | Method and apparatus for providing proportional positive airway pressure to treat congestive heart failure A system including methods and apparatus for treatment of Congestive Heart Failure. The system involves applying separate and independent gains to flow rates of pressurized gas delivered to a patient during inspiratory and expiratory phases of a respirato... | 08/18/1998 |
| 5790636 | Telephone travel card system under the control of its customers A telephone system for travel card users where the users may program a switch processor so that it completes, re-routes, or refuses to complete calls as predetermined by the customer. Data is captured as it is transferred from the switching module to an i... | 08/04/1998 |
| 5778133 | Nonimaging light collector A compact beam scanning information readout device and method for reading bar code or other information requires little or no orientation of the information to be scanned by virtue of its raster or omni directional scan capabilities. Only a single mirror ... | 07/07/1998 |
| 5768906 | Electrochemical heat exchanger An electrochemical heat exchanger including a housing, at least one electrochemical cell within the housing with a first electrode and a hydrogen electrode at least partially immersed in a liquid electrolyte, and positive and negative terminals of the ele... | 06/23/1998 |
| 5764823 | Optical switch for isolating multiple fiber optic strands An apparatus and method for selectively blocking optical light signals provided from a plurality of input fiber optical strands with an optical switch. An input fiber termination port is provided for coupling the plurality of input fiber optical strands t... | 06/09/1998 |
| 5756404 | Two-step nitride deposition A method is provided for fabricating a nitride layer of the semiconductor integrated circuit on a semiconductor substrate in a processing chamber. Source gases are applied to the processing chamber and a first nitride layer is deposited over the semicondu... | 05/26/1998 |
| 5755370 | Press feed with infinitely variable stock material engagement spacing A press feed capable of being driven in synchronization with a press. The press feed includes a sensor for sensing a selected phase of a press cycle of the press, structure for engaging stock material adapted to be fed by the press feed to the press, and ... | 05/26/1998 |
| 5740737 | Handstamping apparatus A handstamping apparatus comprises a first housing member and a second housing member. The first and the second housing members are moveable relative to each other from a first position to a second position. The first position is a ready position and the ... | 04/21/1998 |
| 5742816 | Method and apparatus for identifying textual documents and multi-mediafiles corresponding to a search topic A method and apparatus for identifying textual documents and multi-media files corresponding to a search topic. A plurality of document records, each of which is representative of at least one textual document, are stored, and a plurality of multi-media r... | 04/21/1998 |
| 5739058 | Method to control threshold voltage by modifying implant dosage using variable aperture dopant implants A semiconductor fabrication method is provided for forming transistors upon a semiconductor substrate wherein the semiconductor substrate has first, second and third substrate regions. A single mask layer is formed over the semiconductor substrate. The si... | 04/14/1998 |
| 5738909 | Method of forming high-integrity ultrathin oxides A method of forming a layer of oxide on a surface of a wafer is disclosed, in which the wafer surface is heated at a first temperature and a first pressure during a first period of time in a first ambient gas comprising nitrogen and oxygen species at a fi... | 04/14/1998 |
| 5737734 | Query word relevance adjustment in a search of an information retrieval system A method for performing a search of a database in an information retrieval system in response to a query having at least one query word with a query word weight and for applying the query word to the database and selecting information from the information... | 04/07/1998 |
| 5729116 | Shunt recognition in lithium batteries An apparatus and method of recognizing a shunt caused by formation of dendrites in a rechargeable lithium battery which comprises charging the battery with a charging current, sampling the charging current voltage of the battery at pre-determined time int... | 03/17/1998 |
| 5721902 | Restricted expansion of query terms using part of speech tagging A method for searching a database of an information retrieval system in response to a query having at least one query word with a part of speech, for applying the query word to the database and selecting information from the database according to the quer... | 02/24/1998 |
