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Johnston, VA
Chris Johnston, Chesterfield, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20100129196 | COOLED GAS TURBINE VANE ASSEMBLY - A gas turbine vane to improve vane performance by addressing known failure mechanisms. A cooling circuit to the trailing edge of a vane airfoil is fed from the outer diameter platform, which prevents failure due to an oxidized and eroded airfoil trailing edge. The gas turbine includes an outer diameter platform, a hollow airfoil and an inner diameter platform with a plurality of cooling tubes extending radially through the airfoil. The cooling tubes are open at the outer diameter end and closed with covers at the inner diameter end. The inner diameter platform is also cooled and includes a meterplate for a portion of the cooling passageway and includes an undercut to improve thermal deflections of the inner diameter platform. | 05-27-2010 |
David Johnston, Poquoson, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20080202331 | ELECTROSTATIC PRECIPITATOR HAVING A SPARK CURRENT LIMITING RESISTORS AND METHOD FOR LIMITING SPARKING - An electrostatic precipitator including: a collecting electrode in a gas passage; a discharge electrode in the gas passage and separated by a gap from the collecting electrode; a power supply applying a voltage to the discharge electrode, wherein the voltage establishes an electric field between the discharge electrode and the collecting electrode to ionize gas flow in the gap, and a resistor in series with the discharge electrode and having an effective resistance in series with the discharge electrode of at least 50 Ohms. | 08-28-2008 |
| 20080307974 | METHOD AND SYSTEMS TO FACILITATE IMPROVING ELECTROSTATIC PRECIPITATOR PERFORMANCE - A method to facilitate improving electrostatic precipitator performance is provided. The method includes providing an electrostatic precipitator including an inlet, a collector chamber and an outlet, where the collector chamber includes a plurality of discharge electrodes and a plurality of collector electrodes. The method also includes defining a respective discharge electrode V-I performance for each of the plurality of discharge electrodes, identifying a particle removal characteristic for each respective discharge electrode based on the respective discharge electrode V-I performance for each of the plurality of discharge electrodes and positioning each of the plurality of discharge electrodes in the electrostatic precipitator according to the particle removal characteristic for each respective discharge electrode. | 12-18-2008 |
| 20110005388 | Electrostatic Precipitator Having a Spark Current Limiting Resistors and Method for Limiting Sparking - An electrostatic precipitator including: a collecting electrode in a gas passage; a discharge electrode in the gas passage and separated by a gap from the collecting electrode; a power supply applying a voltage to the discharge electrode, wherein the voltage establishes an electric field between the discharge electrode and the collecting electrode to ionize gas flow in the gap, and a resistor in series with the discharge electrode and having an effective resistance in series with the discharge electrode of at least 50 Ohms. | 01-13-2011 |
David F. Johnston, Poquoson, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20100057269 | SYSTEMS AND METHODS FOR MONITORING A RAPPING PROCESS - A method for monitoring operation of a rapper in an electrostatic precipitator using a rapper control system is described. The method includes determining model electrical characteristics of the rapper. The model electrical characteristics of the rapper correspond to model mechanical operating characteristics of the rapper. The method also includes storing data corresponding to the model electrical characteristics and the model mechanical operating characteristics of the rapper, determining actual electrical characteristics of the rapper, and comparing the actual electrical characteristics of the rapper to the stored model electrical characteristics to determine actual mechanical operating characteristics of the rapper. | 03-04-2010 |
David Fulton Johnston, Poquoson, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20090139406 | DISCHARGE ELECTRODE AND METHOD FOR ENHANCEMENT OF AN ELECTROSTATIC PRECIPITATOR - A method for designing a discharge electrode of an electrostatic precipitator, includes: | 06-04-2009 |
| 20110043999 | APPARATUS AND ARRANGEMENT FOR HOUSING VOLTAGE CONDITIONING AND FILTERING CIRCUITRY COMPONENTS FOR AN ELECTROSTATIC PRECIPITATOR - A unitary-enclosure housing apparatus and arrangement for protecting and cooling the high voltage electronic conditioning and filtering circuitry components used for providing a high-voltage waveform to an electrostatic precipitator device includes a hermetically sealed dielectric liquid coolant filled tank/housing having one or more side-mounted hollow-panel type radiator structures for dissipating heat from the coolant. The disclosed unitary-enclosure housing apparatus and the particular arrangement of the internal electronic components results in a relatively external small footprint while containing both the transformer-rectifier (TR) set and high-voltage resistor-capacitor (R-C) filter components associated with a high-voltage electrostatic precipitator device in a single unitary package. The housing apparatus is outfitted with a removable top cover plate and access panel for providing easy access to the TR set and R-C filter components. A coolant drain spigot is also provided on the housing for simplifying the draining and replacement of coolant liquid. | 02-24-2011 |
Gene Johnston, Radford, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20080245252 | NON-TOXIC PERCUSSION PRIMERS AND METHODS OF PREPARING THE SAME - A percussion primer composition including at least one explosive, at least fuel particle having a particle size of about 1500 nm or less, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same. | 10-09-2008 |
Jeffrey W. Johnston, Charlottesville, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20080281583 | CONTEXT-DEPENDENT PREDICTION AND LEARNING WITH A UNIVERSAL RE-ENTRANT PREDICTIVE TEXT INPUT SOFTWARE COMPONENT - A system and method for supporting predictive text entry in software applications by sharing a common, predictive, software text-entry widget within a consumer device across multiple software applications and input contexts. The method comprises: a software application invoking an instance of a text-entry widget in a particular input context, the application optionally providing the widget a description of allowed symbols and a dictionary of expected symbol strings associated with the current context, the widget modifying a virtual keyboard display and predictive algorithm data according to the allowed symbols and dictionary, the user entering text via the widget, the widget returning the entered text to the application, and the application optionally including information derived from entered text in the associated dictionary to enhance the predictive capability of the widget on future invocations. | 11-13-2008 |
| 20080281974 | PROVIDING PERSONALIZED RESOURCES ON-DEMAND OVER A BROADBAND NETWORK TO CONSUMER DEVICE APPLICATIONS - A method and system for providing personalized information to applications executing on consumer devices by: building a consumer preferences profile on a consumer device using predefined associations between consumer preference attributes and application events (including user input); summarizing the consumer preferences profile into a profile summary when applications require a new personalized data resource; requesting a personalized data resource from a centralized database of data resources over the broadband network by including application context information along with the profile summary in the request; analyzing data resource groups in the centralized database to find a candidate set of data resources according to resource rules in the resource groups; selecting a personalized data resource from the candidate set of data resources that matches the profile summary and context information; and delivering the selected personalized data resource to the requesting application over the broadband network. Personalized data resources may include resource selection information, graphic images, text content, formatting information, video clip data, click-to-call data, and scripts and procedures. | 11-13-2008 |
| 20100306812 | SYSTEM FOR AND METHOD OF TARGETING BROADCAST MESSAGES - A system for and method of targeting a broadcast message to a subset of potential electronic receivers in a broadcast network is presented. The system and method may comprise collecting identifying information associated with designated electronic receivers of a targeted broadcast message, generating, using a computer processor, a data set structure using the identifying information, associating the data set structure with the targeted broadcast message, and broadcasting the targeted broadcast message and the data set structure to a plurality of electronic receivers, wherein the data set structure provides information allowing at least one of the plurality of electronic receivers to determine whether the targeted broadcast message is targeted to the at least one electronic receiver. | 12-02-2010 |
| 20110067003 | SYSTEM AND METHOD OF SUBSTITUTING PARAMETER SETS IN SELF-CONTAINED MINI-APPLICATIONS - Disclosed are systems and methods of building a default set of parameters into a software application by defining a widget template having associated parameter schema and then instantiating a widget by substituting a new set of application parameters for the built-in defaults such that the new parameters meet the same constraints defined for the default parameters. Aspects of the invention also include testing the original application containing the default parameters, along with the parameter substitution process itself, using a Statistical Software Testing Methodology (SSTM) to ensure the application meets a pre-determined level of quality. | 03-17-2011 |
J. Mark Johnston, Mclean, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20110078276 | Method of Scalable Web Financing By Micropayments - A method is disclosed of scalable web financing by micropayments that 1) equitably and automatically allocates costs among web site users that may have varying usage patterns; 2) lowers the risk in providing niche websites to smaller groups of users; 3) provides a funding source directly related to web site usage by particular users; 4) allows the web site to scale with demand; and 5) provides incentives for provision of content to a web site that is timely and useful. A microcost is determined for each element of web site content. A micropayment is transferred from a user's web site account to a web site operator account in an amount equivalent to the determined microcost when the user accesses the web site content. Various methods of calculating the microcost are disclosed, as well as methods of compensating content-providers with micropayments or credits, as a means to provide incentives for provision of content. | 03-31-2011 |
Scott Johnston, Potomac Falls, VA US
| Patent application number | Description | Published |
|---|---|---|
| 20080208651 | LEAD DISBURSEMENT SYSTEM AND METHOD - A method includes associating a lead with a subset of participants from a plurality of participants. The associating is performed based on a criteria list. A priority is determined for each participant from the subset of participants. A capacity coefficient is determined for each participant from the subset of participants. The lead is exclusively assigned to a participant from the subset of participants based on the priority for the participant and the capacity coefficient for the participant. | 08-28-2008 |