...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8165315 | Multichannel wireless system An audio system responsive to a source of audio programming. The audio system comprising a master amplifier connected to the source of audio programming, the master amplifier providing channelized amplified audio signals at each one of a plurality of channel output ... | 04/24/2012 |
| 8138957 | Direct digital frequency synthesizer using hybrid digital to analog converter and synthesizing method thereof A direct digital frequency synthesizer and a synthesizing method thereof. The direct digital frequency synthesizer uses a hybrid digital to analog converter, which matches output data of a phase accumulator to a sine wave amplitude using a hybrid DAC, including a no... | 03/20/2012 |
| 8104640 | Spring-loaded ammunition magazine carrier A system for dispensing ammunition magazines. The system includes a housing for holding the magazines with an open region defined in the housing; a spring-loaded follower imparting a force against the magazines to move a first magazine into a dispensing position for... | 01/31/2012 |
| 8063824 | Magnitude-squared coherence filtering in a time difference of arrival (TDOA) or group delay interferometric geolocation system In a geolocation system for determining a geolocation of a target emitter, a method for determining the geolocation. The method comprising: (a) receiving a signal transmitted from the target emitter at each one of a plurality of sensors, a frequency spectrum associa... | 11/22/2011 |
| 8018983 | Tunable diversity antenna for use with frequency hopping communications protocol A sound reproducing device. The sound reproducing device for receiving a frequency-hopping signal having an instantaneous frequency within a hopping bandwidth. The sound reproducing device comprises a first antenna having a bandwidth including the hopping bandwidth ... | 09/13/2011 |
| 8000737 | Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness A communications apparatus comprising a first antenna, a first serial configuration of a first power amplifier and a first matching network, a second serial configuration of a second power amplifier and a second matching network, a switching element for switchably s... | 08/16/2011 |
| 7978148 | Quadrifilar helical antenna A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element ... | 07/12/2011 |
| 7962348 | Apparatus, method and software for developing electronic documentation of imaging modalities, other radiological findings and physical examinations A system for guiding a user's physical examination of a patient and for generating a transcript. The system comprises: a screen requesting patient identification information, wherein the patient identification information excludes a patient name and further requesti... | 06/14/2011 |
| 7956785 | Return to zero digital to analog converter and converting method thereof The present invention relates to a digital to analog converter, to a return-to-zero digital to analog converter with improved wideband characteristics by enabling a return-to-zero output without separate clock and controller, and a converting method thereof. Since t... | 06/07/2011 |
| 7938710 | Breast shaping and lifting support garment A breast support garment. The garment comprises a right fabric panel for overlying the woman's right breast when worn, a left fabric panel for overlying the woman's left breast when worn, the right and the left panels having a relatively flat configuration when the ... | 05/10/2011 |
| 7928881 | Direct digital frequency synthesizer using variable sine wave-weighted digital to analog converter and synthesizing method thereof The present invention relates to a direct digital frequency synthesizer using a variable sine wave-weighted digital to analog converter with improved size and efficiency and a synthesizing method thereof. The direct digital frequency synthesizer and the synthesizing... | 04/19/2011 |
| 7918195 | Air-cooled engine heat extractor A heat extractor for attachment to an air-cooled engine. A cooling fan extends from the engine and is rotated by action of the engine. The heat extractor comprises a first thermally conductive surface for attachment to the engine, a plurality of flaps extending from... | 04/05/2011 |
| D633743 | Water cooler cover | 03/08/2011 |
| 7896192 | Patient controlled timed medication dispenser A medication on demand dispenser. The dispenser provides patient access to medications prescribed to be available on an as-needed basis but with a prescribed minimum time interval between doses. The dispenser permits access to a single medication dose after each min... | 03/01/2011 |
| 7869783 | Extended smart antenna system A communications device for receiving a propagating electromagnetic signal representing an information signal. The communications device comprises a first and a second radiator each comprising a plurality of structural elements; a controller for configuring one or m... | 01/11/2011 |
| D628127 | Motorcycle seat support bar and rack assembly | 11/30/2010 |
| 7834813 | Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness An antenna for a communications device having configurable elements controlled to modify an antenna impedance and/or an antenna resonant frequency to improve performance of the communications device. The antenna impedance is controlled to substantially match to an o... | 11/16/2010 |
| 7832454 | Screen enclosure privacy system One embodiment of the present invention comprises a privacy system for use with an existing screen enclosure enclosing an area where privacy is desired. The screen enclosure includes vertical members attached to upper horizontal members to form a screen enclosure fr... | 11/16/2010 |
| 7804458 | Slot antenna A communications device for sending and receiving an information signal. The communications device comprising an element having an opening defined therein for receiving an antenna, the element comprising first conductive material disposed proximate the opening and c... | 09/28/2010 |
| 7804377 | Apparatus and method for producing an SBPSK-type modulated signal using piecewise linear phase transition shaping An apparatus and method for generating piecewise linear phase transitions during a phase transition interval of a first signal to control controlling the phase/frequency of a second signal. The initiation point, duration and shaping parameters of the piecewise linea... | 09/28/2010 |
| 7743923 | Patient controlled timed medication dispenser The medication delivery device provides patient access to medications prescribed to be available on an as-needed basis, but with a minimum time intervals between doses. The device permits access to a single dose of the medication after each minimum time interval has... | 06/29/2010 |
| 7667659 | Antenna system for receiving digital video broadcast signals An antenna system operative with a communications device for receiving a radio frequency signal, wherein the communications device produces a first control signal representing a frequency of a received signal. The antenna system comprises an antenna structure for re... | 02/23/2010 |
| 7663555 | Method and apparatus for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness An antenna for a communications device having configurable elements controlled to modify an antenna impedance and/or an antenna resonant frequency to improve performance of the communications device. The antenna impedance is controlled to substantially match to an o... | 02/16/2010 |
| 7661532 | Tray insert for medication on demand device In one embodiment, the invention comprises a tray insert for a medication dispenser, the dispenser permitting access to a medication dose after a minimum dosing interval has elapsed since presentation of an immediately previous dose. The dispenser comprises a dispen... | 02/16/2010 |
| 7658730 | Adult male disposable incontinence system for disposable underwear An external male urine collection device is inserted into a front opening of a disposable nonwoven diaper or brief. The device comprises a resilient ring for receiving and restraining the penis in a funnel-shaped collection assembly bag extending from the diaper or ... | 02/09/2010 |
| 7650428 | Mobile cellular network selection from wireless LAN Methods are provided to enable a roaming Wireless Local Access Network (WLAN) customer to select from multiple PLMNs using a single standard SSID. The methods include addition of a Mobile Country Code (MCC) to the SSID; addition of an MCC and a series of Mobile Netw... | 01/19/2010 |
| 7637481 | Adjustable fence clip A fence clip for holding a fence wire. The fence wire is carried by two spaced-apart lower legs of the fence clip. In an at-rest configuration no external forces are exerted on the fence clip; a spring-like tension force between a body and two spaced-apart upper leg... | 12/29/2009 |
| D604835 | Patient controlled timed medication dispenser | 11/24/2009 |
| 7616163 | Multiband tunable antenna One embodiment of the invention relates to an antenna providing a tunable resonant frequency within a low frequency band and further providing a high resonant frequency, the antenna comprises a first radiating structure of a first effective electrical length, a seco... | 11/10/2009 |
| 7522884 | Apparatus and method for analyzing drive test data for communications system A data check tool useful for processing drive test data for assessing performance of a communications system. After (or during) test data collection, the data check tool processes the test data to determine whether the collected test data meets the requirements of a... | 04/21/2009 |
| 7489281 | Quadrifilar helical antenna A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element ... | 02/10/2009 |
| D579800 | Food temperature collection, storage and retrieval system | 11/04/2008 |
| 7436360 | Ultra-wide band monopole antenna A wide band antenna. The antenna comprises a radiating element in a corner region of a substrate, spaced apart from a ground plane occupying a substantial portion of a remaining area of the substrate. Series and shunt impedance matching elements are connected to the... | 10/14/2008 |
| 7358809 | Method for forming elements with reduced variation The performance of precision analog integrated electronic circuits is directly related to the degree of matching between electrical circuit elements. Any residual mismatch of circuit elements after manufacturing must be calibrated out using numerous techniques such ... | 04/15/2008 |
| D563095 | Medication container | 03/04/2008 |
| 7263647 | Signal error detection in railroad communication system A communication system for a distributed locomotive power/brake control system for a railroad train having a lead locomotive and one or more remote locomotives. Command and status signals are communicated over the system between the lead and remote locomotives. Each... | 08/28/2007 |
| 7253779 | Multiple antenna diversity for wireless LAN applications An antenna system comprising a plurality of antennas designed and oriented to provide one or more of radiation pattern, signal polarization and spatial diversity. The various diversity operational characteristics are achieved by using similar antennas physically ori... | 08/07/2007 |
| 7209817 | Diagnosis and repair system and method A diagnosis and repair recommendation system for a railroad locomotive is disclosed. The system uses generalized repair recommendations and instantiates them to a specific repair process for a unique road number locomotive. In addition to repair steps to be executed... | 04/24/2007 |
| 7193565 | Meanderline coupled quadband antenna for wireless handsets An antenna operative in a plurality of frequency bands. The antenna comprises first and second high band resonators, a resonating meanderline and a counterpoise. A ground return conductively couples one or more regions of the counterpoise to the meanderline. One or ... | 03/20/2007 |
| 7182411 | Pneumatic-based communications system An apparatus for communicating information over a pressurized fluid-carrying pipe connecting a plurality of serial nodes. A sounder node (i.e., transmitter) creates variable pressure patterns within the fluid-carrying pipe, which pressure patterns are identified and... | 02/27/2007 |