Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 6567411 | Method and apparatus for continuous narrowcast of individualized information over a data network A method and apparatus which narrowcasts individualized information to system users with access to a data network which carries information such as broadband video data, voice data, or other types of equivalent data such as the Worldwide Web. Connected to... | 05/20/2003 |
| 6559096 | Desiccant composition A desiccant composition and a method for making the desiccant composition. The dessicant composition includes an absorbent such as calcium chloride or lithium chloride which is impregnated onto a highly porous support such as activated carbon that has wel... | 05/06/2003 |
| 6558785 | Insulated reentry heat shield The present invention discloses an insulated reentry heat shield for minimizing heat transfer to a spacecraft structure or the like during atmospheric reentry. The heat shield (10) comprises an outer heat resistant layer (12) including an ablative first m... | 05/06/2003 |
| 6557475 | Separation system for a booster payload fairing The invention is a separation system for releasably securing first and second structural members together along mating edges thereof. For example, the segments of a launch vehicle faring used to protect the payload until orbit is reached. In detail, the i... | 05/06/2003 |
| 6560470 | Electrical lockout photoplethysmographic measurement system A photoplethysmographic measurement system includes an electrical lockout to effectively prevent users, such as patients and medical personnel, from being exposed to high levels of light energy illuminating from light emitters (18) housed within a main in... | 05/06/2003 |
| 6555022 | Oxygen-containing phosphor powders, methods for making phosphor powders and devices incorporating same Phosphor powders and a method for making phosphor powders. The powders are oxygen-containing, such as metal oxides, silicates, borates or titanates and have a small particle size, narrow particle size distribution and are substantially spherical. The meth... | 04/29/2003 |
| 6554228 | Aerodynamic fairing An aerodynamic fairing which is mountable on a strap on solid rocket motor (SRM) is configured such that in flight aero-acoustic effects are significantly reduced with regard to the launch vehicle to which the SRM is mounted and other external apparatus. ... | 04/29/2003 |
| 6553788 | Glass substrate for magnetic disk and method for manufacturing A method of manufacturing a glass substrate for a magnetic disk. The method includes the step of scrub-etching the glass substrate using a pad in the presence of an acid treatment solution. As the acid treatment solution, hydrofluoric acid is used in a ra... | 04/29/2003 |
| 6554845 | Suturing apparatus and method In one embodiment of a suturing apparatus a needle member is provided with a suture material having a pre-tied knot disposed about a distal end of the needle member. The suturing apparatus further includes a first member, wherein the first member and need... | 04/29/2003 |
| 6549708 | Dual-side waveguide-based wavelength demultiplexer A demultiplexer is disclosed. The demultiplexer incorporates a reflective grating that is associated with a first waveguide through which a multiplexed optical signal may be transmitted. Individual wavelengths of light that have been reflected by the refl... | 04/15/2003 |
| 6547671 | Launch and aim angle determination for an object The launch angle of an object in flight after being launched from a initial position, such as a golf ball struck by a golf club, is determined by measuring the velocity of the object using a sensor, such as a Doppler Radar transceiver, positioned, for exa... | 04/15/2003 |
| 6547476 | Universal spacecraft separation node An integrated separation system and interface structure is disclosed for a variety of deployment applications. In one embodiment, a Universal Spacecraft Separation Node (100) includes a separation nut assembly (102), a separation spring assembly (104) an ... | 04/15/2003 |
| 6549175 | Simultaneous mode matching feedline The present invention provides a matched mode antenna feedline desiged to achieve simultaneous modal impedance matching with a multiple mode N-fold symmetric or N-fold polygonal antenna such as, for example, spiral antennas, sinuous antennas, modulated ar... | 04/15/2003 |
| 6546259 | Method and system for autonomous two-way radio frequency communication A method and system for autonomous two-way RF communication between a launch vehicle and at least one receiving or tracking station. Detection circuitry continuously determines the identity of the optimum receiving or tracking station (ground, sea, airbor... | 04/08/2003 |
| 6543724 | Miniature satellite design The invention is a micro-satellite assembly. In detail, the invention includes first and second flat structural members containing the satellite payload. First and second tubular elements connect first and second structural members such that they are in a... | 04/08/2003 |
| 6540688 | Method and system for assessing collateral blood flow to a tissue region of interest The present invention is directed to a method and system for use in assessing collateral blood flow to a tissue region of interest (ROI). The method includes the steps of obtaining a first pulsatility measurement and a second pulsatility measurement, wher... | 04/01/2003 |
| 6536729 | Bracket assembly including a reservoir A bracket attachable to a surface while maintaining the impermeability of the surface to fluids. The apparatus includes a base having a cavity or channel on a bottom side. Holes through the base for receiving fasteners intersect the cavity or channel. The... | 03/25/2003 |
| 6536473 | Choke valve The downstream end of the flow trim cage is formed to provide an inwardly protruding lip. The lip deflects flow inwardly as it leaves the bore of the cage. As a result, erosion of the body, immediately downstream of the flow trim, is reduced.... | 03/25/2003 |
| 6537201 | Implantable hearing aid with improved sealing An improved implantable hearing aid apparatus and related method of manufacture are disclosed. The inventive apparatus and method utilize electrodeposition techniques to yield enhanced sealing of implanted componentry. In one embodiment an inventive appar... | 03/25/2003 |
| 6535590 | Telephony system A telephony system and method provide for the establishment of telephonic communications through use of a television and a set top box. The set top box is connected both to the television and a telephone network. Incorporated into a set top box is a micro... | 03/18/2003 |
| 6532730 | Slip joint duct system for a rocket fuel duct Various joints within a duct assembly to allow relative movement between portions of a fluid system which are interconnected by this duct assembly are disclosed. This duct assembly is particularly suited for interconnecting a rocket fuel tank and rocket e... | 03/18/2003 |
| 6532235 | Method and tool for calculating impact of voice traffic on fast packet networks An analysis method provides a bandwidth calculation for employing voice communications over fast packet (FP) networks such as frame relay or ATM. Many companies currently have internal phone systems such as private branch exchange (PBX), which provide for... | 03/11/2003 |
| 6530213 | Method and apparatus for ignition detection The present invention is directed to methods and apparatus of detecting engine ignition. The invention generally includes a camera assembly to detect electromagnetic spectra, and a control assembly operatively interconnected with the camera assembly to mo... | 03/11/2003 |
| 6530718 | Connector assembly The invention is a separable connector that includes nut and bolt assemblies for joining two structural elements together. The thread geometry is selected such when the nut and bolt assemblies are threadably joined and a tension load applied therebetween,... | 03/11/2003 |
| 6525709 | Miniature display apparatus and method A display system includes a spatial light modulator having an array of individually controlled pixels switchable between a first and a second state for producing modulated light having gray scale during a given period of time. The system generates a refer... | 02/25/2003 |
| 6523028 | Method and system for universal querying of distributed databases A method and system for accessing information or data from distributed databases is disclosed. Generally, the method includes the steps of receiving an unstructured query from a user, generalizing the query to expand the query, receiving from the user sel... | 02/18/2003 |
| 6522518 | Reconfigurable multichip module stack interface A system and apparatus provide for the packaging of electronic components as well as a monitoring system to periodically check and adjust connections between the various electronic components. A multichip module (MCM) may be employed with an interposer an... | 02/18/2003 |
| 6519616 | Web site quality assurance system and method A system and method for use in assuring the quality of a web site are disclosed. The system and method are particularly directed to the quality assurance of a telephone directory web site that, in response to queries submitted by visitors to the web site,... | 02/11/2003 |
| 6517476 | Connector for implantable hearing aid The present invention is directed to implantable hearing aid systems and provides for selective interconnection between two or more implantable components of a system. The inventive apparatus comprises a first connector interconnected to a first implantab... | 02/11/2003 |
| 6510606 | Multichip module Low temperature co-fired ceramic (LTCC) multichip modules are used to provide high density interconnects between electronic elements. A ceramic carrier includes a number of cavities which are sized to receive a variety of submodules. The submodules are co... | 01/28/2003 |
| 6510329 | Detection of sensor off conditions in a pulse oximeter A system for detecting sensor off conditions in a pulse oximeter is disclosed. In one implementation, a detector off condition is identified based a volatility of a signal quality of a filtered detector signal. The detector signal is first filtered, for e... | 01/21/2003 |
| 6507330 | DC-balanced and non-DC-balanced drive schemes for liquid crystal devices A method of operating a liquid crystal cell includes DC-balancing by displaying an inverse image with electric fields of increased magnitude relative to the image producing electric fields. While the inverse image is displayed the image is prevented from ... | 01/14/2003 |
| 6505061 | Pulse oximetry sensor with improved appendage cushion The invention is directed to reusable, clip-type oximetry sensors that comprise opposing top and bottom members. In one aspect, the sensor includes a resilient spring member interposed between the top and bottom members to provide a closing force, wherein... | 01/07/2003 |
| 6505060 | Method and apparatus for determining pulse oximetry differential values Differential values, for use in blood oxygenation calculations, are determined based on multiple sample values for each channel of an oximetry system, each such value constituting a data point. In one implementation, each of these data points is defined b... | 01/07/2003 |
| 6505133 | Simultaneous signal attenuation measurements utilizing code division multiplexing A pulse oximeter (100) includes two or more light sources (102) for transmitting optical signals through an appendage (103) of patient. The sources (102) are operated to transmit code division multiplexed (CDM) signals. That is, the sources (102) are driv... | 01/07/2003 |
| 6501974 | Compensation of human variability in pulse oximetry The invention relates to the calibration of a pulse oximeter intended for non-invasively determining the amount of at least two light absorbing substances in the blood of a subject. In order to take human variability into account, the calibration is based... | 12/31/2002 |
| 6500231 | Recovery of precious metals from thiosulfate solutions In one aspect, the present invention provides a method for recovering precious metal, and particularly gold, from a particulate substrate loaded with a precious metal-containing coating, in which a portion, but less than substantially all, of the particul... | 12/31/2002 |
| 6499696 | Rocket engine with reduced thrust and stagable venting system A rocket having a rocket engine vent system for a rocket engine is disclosed. The rocket engine vent system includes at least one rocket engine vent system conduit having a pair of vent apertures that are disposed on opposite sides of this conduit (i.e., ... | 12/31/2002 |
| 6501753 | Architecture and method for using an advanced intelligent network (AIN) to reduce voice switch and trunk loading Architecture and a method for reducing voice switch and trunk loading is disclosed. In one embodiment, a system for handling a voice frequency data call to a first termination telephone number associated with a service provider includes a first processor ... | 12/31/2002 |
| 6498704 | Disk drive with viscoelastic damper disposed between adjacent load beams A disk drive with load beam damping is disclosed. Multiple disks are provided on a spindle for storage of information thereon. A rigid actuator arm block is disposed radially beyond a perimeter of these disks. Flexible load beams with read/write heads the... | 12/24/2002 |
