Drew A.
Drew A. Bittenbender, Royersford, PA US
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20110010081 | Method of creating a virtual traffic network - A computer-implemented method of creating a virtual traffic network includes inputting map data representing a road system, inputting flow data related to traffic flow on the road system and integrating the map data and the flow data to produce a virtual traffic network representing traffic conditions on the road system. | 01-13-2011 |
Drew A. Davidock, Lake Jackson, TX US
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20100139374 | METHODS FOR RHEOLOGICAL TESTING OF MULTIPLE SAMPLES AND SYSTEMS THEREFOR - The viscosity or relative viscosity of samples can be measured in parallel by dispensing or aspirating the samples at a set condition and then measuring a property of the sample such as mass dispensed or aspirated. | 06-10-2010 |
20100168343 | FUNCTIONALIZED POLYMERS, ARTICLES PREPARED THEREFROM, AND METHODS FOR MAKING THE SAME - The invention provides compositions comprising at least one propylene-based polymer, at least one peroxide and at least one coagent. In a preferred example, a composition comprising at least one propylene-based polymer, at least one peroxide, at least one grafting agent, and at least one coagent, and wherein the at least one coagent has a substituted carbon-carbon double bond structure selected from the group consisting of structures (I), (II), (III), (IV) and (V) as follows, including cis and trans isomers wherein D1, D2, D3 and D4 are each, independently, one of the following: (a) a hydrocarbon substituent containing a heteroatom with a nonbonding pair of electrons, and where the heteroatom with the nonbonding pair is directly attached to the carbon-carbon double bond, or (b) a hydrocarbon substituent containing a carbon-carbon pi bonding pair, and where the first carbon of the carbon-carbon pi bonding pair is directly bonded to the carbon-carbon double bond; and wherein the R1, R2 and R3 are each, independently, H, a hydrocarbon substituent, or a substituted hydrocarbon substituent; and wherein R1, R2 and R3, each, independently, does not have the same chemical structure as D1, D2, D3 or D4; and wherein the molar ratio of the “coagent(s)” to “free radicals formed from the peroxide(s)” is from 0.5:1 to 5:1; and wherein the coagent selected from structures (I)-(V) does not contain only one phenyl group, or does not contain only one furyl group. | 07-01-2010 |
20110031645 | POLYPROPYLENE FOR USE IN BOPP APPLICATIONS - The present invention relates to polypropylene compositions having a broad molecular weight distribution with a relatively high amount of xylene soluble material. The compositions have an Mw/Mn of five or greater, but preferably greater than 5.5 and more preferably greater than 6.0. The compositions have xylene solubles from 5.0 to 8.0 percent by weight, preferably from 5.5 to 8.0 percent by weight, and more preferably 6.0 to 7.5 percent by weight. The polymers of the present invention are particularly well suited for biaxially oriented polypropylene applications. | 02-10-2011 |
Drew A. Davidock, Randolph, NJ US
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20110052930 | High Gloss Thermoformed Article and Process for Producing Same - The present disclosure is directed to a thermoforming process and thermoformed articles produced therefrom. The thermoforming process includes heating a structure with a gloss layer composed of a propylene-based polymer having a melt flow rate from about 0.1 g/10 min to about 1.5 g/10 min, and producing a thermoformed article wherein the gloss layer has a post-thermoformed Gardner gloss value within 25% of the pre-thermoformed Gardner gloss value for the gloss layer. The thermoformed article may have a gloss layer with a post-thermoformed Gardner gloss value greater than or equal to about 60. | 03-03-2011 |
Drew A. Demangone, Latrobe, PA US
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20150182721 | HUMIDIFIER WITH BACK-FLOW PREVENTION VALVE - A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier. | 07-02-2015 |
Drew A. Hall, La Jolla, CA US
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20160054397 | Correlated double sampling for noise reduction in magnetoresistive sensors and sensor arrays - Correlated double sampling (CDS) for magnetoresistive (MR) sensors is provided. Here the MR sensor output is sampled at two closely spaced times. The first sample is MR signal+baseline+noise and is sampled when the modulated magnetic field is non-zero. The second sample is baseline+noise only because it is sampled when the modulated magnetic field is zero. The difference between the first and second samples will have significantly reduced low frequency noise and baseline cancellation. Modulation of the electrical bias provided to the MR sensor can be used to provide a baseline signal for temperature compensation. In a second aspect, we provide MR sensor arrays having input and output multiplexing and demultiplexing for row and column line selection, in combination with a per-sensor switch to prevent noise accumulation and bandwidth reduction from idle MR sensors. | 02-25-2016 |
Drew A. Hall, Stanford, CA US
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20100231203 | Temperature and drift compensation in magnetoresistive sensors - Double modulation of a magnetoresistive sensor entails modulating both an excitation (e.g., voltage or current) applied to the sensor and a tickling magnetic field applied to the sensor. The excitation and magnetic field are modulated at different frequencies f | 09-16-2010 |
Drew A. Karnick, Blaine, MN US
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20100139373 | MEMS SENSOR PACKAGE - Methods and apparatus for a MEMS sensor package are provided. In one embodiment, a MEMS sensor package comprises a MEMS sensor; a sensor body permeable to gas leakage at a first leak rate; a backfill gas that pressurizes the sensor body to a backfill pressure; wherein the backfill pressure provides a dampening of the MEMS sensor; and wherein the backfill pressure is set such than any increase in pressure within the sensor body due to gas leakage will not cause a deviation in a Q value of the MEMS sensor beyond a predefined range for at least a specified design service life for the MEMS sensor package. | 06-10-2010 |
20100299003 | REAL-TIME COMPENSATION OF INERTIAL SENSOR BIAS ERRORS UNDER HIGH SPIN RATE CONDITIONS - A method of estimating bias errors for an air vehicle in flight under high spin conditions is provided. The method comprises collecting a first set of data samples at a first time and collecting a second set of data samples at a second time. The first time and the second time occur after deployment of the air vehicle and before canard shock. The first and second sets of data samples comprise roll rate data from at least a first gyroscope and acceleration data from at least a first accelerometer. At least a first estimated accelerometer bias from the first and second sets of data samples is calculated. | 11-25-2010 |
20130041618 | ESTIMATION OF AN INITIAL CONDITION INERTIAL REFERENCE FRAME - In one embodiment, an inertial device for determining an initial condition reference frame for a body is provided. The inertial device comprises at least one inertial measurement unit, one or more processing devices, and one or more memory devices. The inertial measurement unit provides rotation information along at least one axis to the one or more processing devices. The one or more processing devices uses the rotation information to estimate the current attitude of the body, based on estimates of a total rotation angle from experienced by the body from the beginning of body motion to when the inertial measurement unit initialized. | 02-14-2013 |
20150033849 | MEMS DEVICE MECHANISM ENHANCEMENT FOR ROBUST OPERATION THROUGH SEVERE SHOCK AND ACCELERATION - A micro-electro-mechanical systems (MEMS) device comprises at least one proof mass configured to have a first voltage and a motor motion in a first horizontal direction. At least one sense plate is separated from the proof mass by a sense gap, with the sense plate having an inner surface facing the proof mass and a second voltage different than the first voltage. A set of stop structures are on the inner surface of the sense plate and are electrically isolated from the sense plate. The stop structures are configured to prevent contact of the inner surface of the sense plate with the proof mass in a vertical direction. The stop structures have substantially the same voltage as that of the proof mass, and are dimensioned to minimize energy exchange upon contact with the proof mass during a shock or acceleration event. | 02-05-2015 |
Drew A. Podges, Cupertino, CA US
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20150271961 | DISASSEMBLY FIXTURE, APPARATUS, AND METHOD FOR AN ELECTRONIC DEVICE - Apparatuses, fixtures, methods, and computer program products for disassembling devices are provided. A disassembly apparatus may include first and second disassembly fixtures and an actuator configured to provide a separation force therebetween. Suction may be employed to respectively engage first and second separable portions of a device with the first and second fixtures. Channels defined in an engagement member and surrounded by a sealing member may facilitate such engagement. Further heaters may be employed to loosen a pressure sensitive adhesive or other bonding material. | 09-24-2015 |
Drew A. Roberdeaux, Villa Hills, KY US
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20150305310 | PET LEASH ACCESSORY ASSEMBLY - A pet leash accessory assembly may be utilized with a variety of off-the-shelf accessories including, but not limited to, flashlights, pet waste bags and personal attack deterrents. The pet leash accessory assembly allows an off-the-shelf accessory to be attached at different locations on the lease, for example attached to the leash handle or strap, and to be attached to many different types of leashes, for example, flat, thin leashes and round, rope-like leashes. | 10-29-2015 |