Patents by Inventor Mark A. Stevens
Mark A. Stevens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10370807Abstract: A barrier system includes a plurality of barriers that can be used to form a barrier wall. Each barrier includes a first panel at least partially bounding a cavity and a first leg assembly supporting the first panel in an elevated position. A plurality of spikes are removably disposed on the first panel. A flexible snare is disposed within the cavity of the first panel, the snare being secured to the plurality of spikes so that when the spikes are removed from the first panel, the snare is drawn away from the first panel by the spikes.Type: GrantFiled: November 16, 2017Date of Patent: August 6, 2019Assignee: Off The Wall Products, LLCInventors: Eric M. Stevens, Leo F. Stanko, Mark A. Stevens, Nevin J. Zimmerly, Dennis Kovach
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Publication number: 20180135262Abstract: A barrier system includes a plurality of barriers that can be used to form a barrier wall. Each barrier includes a first panel at least partially bounding a cavity and a first leg assembly supporting the first panel in an elevated position. A plurality of spikes are removably disposed on the first panel. A flexible snare is disposed within the cavity of the first panel, the snare being secured to the plurality of spikes so that when the spikes are removed from the first panel, the snare is drawn away from the first panel by the spikes.Type: ApplicationFiled: November 16, 2017Publication date: May 17, 2018Inventors: Eric M. Stevens, Leo F. Stanko, Mark A. Stevens, Nevin J. Zimmerly, Dennis Kovach
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Patent number: 8668613Abstract: A two-speed transmission having an input shaft and an output shaft, the transmission being capable of transitioning between fixed ratios, the high-range ratio being direct 1:1 and the low-range ratio being about 2:1. The transmission is a simple lightweight, yet robust, configuration utilizing only two gear meshes, being comprised of an input gear, a cluster gear, and an output gear. The transmission is controlled with a clutch and a sprag and with the input and output shafts turning in the same direction.Type: GrantFiled: January 10, 2012Date of Patent: March 11, 2014Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space AdministrationInventors: Mark A Stevens, Robert F Handschuh, David G Lewicki
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Patent number: 8481976Abstract: A method of detecting changes in a scene comprising placing a fluorescent and/or phosphorescent compound in the scene and monitoring for elimination or change in position of the phosphorescent compound.Type: GrantFiled: September 2, 2010Date of Patent: July 9, 2013Assignee: Lockheed Martin CorporationInventors: Mark A. Stevens, Leslie D. Kramer, Randy Pike
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Patent number: 8253115Abstract: A method of detecting changes in a scene comprising placing a fluorescent and/or phosphorescent compound in the scene and monitoring for elimination or change in position of the phosphorescent compound. Also a liquid fluorescent and/or phosphorescent material comprising one or more compounds that are fluorescent and/or phosphorescent in infrared frequencies and substantially not fluorescent and/or phosphorescent in visible light frequencies and a carrier.Type: GrantFiled: November 20, 2006Date of Patent: August 28, 2012Assignee: Lockheed Martin CorporationInventors: Mark A. Stevens, Leslie D. Kramer, Randy Pike
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Patent number: 8091445Abstract: A two-speed transmission having an input shaft and an output shaft, the transmission being capable of transitioning between fixed ratios, the high-range ratio being direct 1:1 and the low-range ratio being about 2:1. The transmission is a simple lightweight, yet robust, configuration utilizing only two gear meshes, being comprised of an input gear, a cluster gear, and an output gear. The transmission is controlled with a clutch and a sprag and with the input and output shafts turning in the same direction.Type: GrantFiled: April 28, 2009Date of Patent: January 10, 2012Assignee: The United States of America as represented by the Administrator of National Aeronautics and Space AdministrationInventors: Mark A. Stevens, Robert F. Handschuh, David G. Lewicki
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Patent number: 7645972Abstract: An apparatus rapidly reads out wavefront errors of an input wavefront and includes a holographic optical element (HOE), a position readout detector and a readout device. The HOE receives the input wavefront and includes a hologram of a particular wavefront recorded with reference waves, each defining a particular aberration coefficient. The position readout detector includes a plurality of position sensing devices (PSDs) receiving an optical output of the HOE, each PSD sensing the occurrence and magnitude in the input wavefront of any of the particular aberrations defined by the reference waves recorded to the holographic optical element with the particular wavefront. The readout device provides a readout value of each PSD upon application of the input wavefront to the holograph optical element, each readout value representing in the input wavefront the presence and magnitude of any of the particular aberrations defined by the reference waves.Type: GrantFiled: December 13, 2006Date of Patent: January 12, 2010Assignee: Lockheed Martin CorporationInventors: Mark A. Stevens, Allen C. Layton
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Publication number: 20080144018Abstract: An apparatus rapidly reads out wavefront errors of an input wavefront and includes a holographic optical element (HOE), a position readout detector and a readout device. The HOE receives the input wavefront and includes a hologram of a particular wavefront recorded with reference waves, each defining a particular aberration coefficient. The position readout detector includes a plurality of position sensing devices (PSDs) receiving an optical output of the HOE, each PSD sensing the occurrence and magnitude in the input wavefront of any of the particular aberrations defined by the reference waves recorded to the holographic optical element with the particular wavefront. The readout device provides a readout value of each PSD upon application of the input wavefront to the holograph optical element, each readout value representing in the input wavefront the presence and magnitude of any of the particular aberrations defined by the reference waves.Type: ApplicationFiled: December 13, 2006Publication date: June 19, 2008Inventors: Mark A. Stevens, Allen C. Layton
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Patent number: 7326027Abstract: Centrifugal compressor flow stabilizing devices and methods of operation thereof are disclosed that act upon the flow field discharging from the impeller of a centrifugal compressor and modify the flow field ahead of the diffuser vanes such that flow conditions contributing to rotating stall and surge are reduced or even eliminated. In some embodiments, shaped rods and methods of operation thereof are disclosed, whereas in other embodiments reverse-tangent air injection devices and methods are disclosed.Type: GrantFiled: May 25, 2004Date of Patent: February 5, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Gary J. Skoch, Mark A. Stevens, Thomas A. Jett
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Patent number: 6547078Abstract: An apparatus for the automated processing of bulk mail in a continuous and automatic procedure includes an operative combination of processing stations including an input station for receiving incoming mail in bulk fashion and for separating the pieces of mail for individual delivery to the remainder of the apparatus a station for detecting irregularities in the contents of the envelopes, such as metal items, folded contents, or oversized items; a station for outsorting envelopes rejected in accordance with determinations made at the detection station; a station for opening the envelopes, preferably along multiple edges; a station for removing the contents from the opened envelopes, for subsequent processing of the contents; and a series of stations for handling and orienting the contents for subsequent delivery to a plurality of output stackers.Type: GrantFiled: August 23, 1999Date of Patent: April 15, 2003Assignee: Opex CorporationInventors: William R. Lile, Albert F. Stevens, Mark A. Stevens, Robert R. Dewitt, Michael E. York, Roy E. Patterson
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Publication number: 20020143823Abstract: A translator, system, and method of translation is provided for translating a source file in a source format to a target file in a target format. A feature identifier determines a feature set of the source file, and a feature writer writes the feature set into the target file in the target format. Optionally, the feature identifier may include a front-end lookup table to map code fragments of the source file to a list of features. The feature writer may include a back-end lookup table to map the feature set to code fragments of the target file format.Type: ApplicationFiled: January 19, 2001Publication date: October 3, 2002Inventor: Mark A. Stevens
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Method and apparatus for detecting credit/debit cards in connection with the processing of bulk mail
Patent number: 6445808Abstract: Envelopes with unspecified contents are inspected by a “magnetic imaging” device which operates to identify magnetic indicia associated with the contents of the envelopes in order to identify the orientation of contents within the envelopes and/or to identify magnetic indicia indicative of the magnetic stripe of a credit/debit card or its remnants, in addition to a second detection device (e.g., a thickness measuring device or a metal detecting device) which can then verify whether the indicia indicative of a magnetic stripe signify the presence of a credit/debit card or some other stimulus such as a paper clip or the like. Similar assurances can be provided by employing a thickness measuring device and a metal detecting device, in operative combination (with or without the addition of a magnetic imaging device).Type: GrantFiled: June 7, 1996Date of Patent: September 3, 2002Assignee: Opex CorporationInventors: William R. Lile, Mark A. Stevens, George L. Hayduchok -
Patent number: 6064023Abstract: An apparatus for the automated processing of bulk mail in a continuous and automatic procedure includes an operative combination of processing stations including an input station for receiving incoming mail in bulk fashion and for separating the pieces of mail for individual delivery to the remainder of the apparatus; a station for detecting irregularities in the contents of the envelopes, such as metal items, folded contents, or oversized items; a station for out-sorting envelopes rejected in accordance with determinations made at the detection station; a station for opening the envelopes, preferably along multiple edges; a station for removing the contents from the opened envelopes, for subsequent processing of the contents; and a series of stations for handling and orienting the contents for subsequent delivery to a plurality of output stackers.Type: GrantFiled: May 29, 1997Date of Patent: May 16, 2000Assignee: Opex CorporationInventors: William R. Lile, Albert F. Stevens, Mark A. Stevens, Robert R. Dewitt, Michael E. York, Roy E. Patterson
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Patent number: 5842577Abstract: An apparatus is provided for sorting a group of documents contained with an envelope into selected batches of documents. An envelope feeder feeds a group of envelopes containing documents onto a document transport. A document extractor positioned along the path of movement extracts the documents from the envelopes. A system controller identifies the documents extracted from each respective envelope as a single transaction along the path of movement. An orientation detector including a magnetic image reader and an optical image reader determines the orientation of selected documents along the path of movement. A document orientor changes the orientation of documents along the path of movement into a desired orientation. A document feeder is positioned downstream from the envelope feeder to selectively feed batch identification pieces into the path of movement.Type: GrantFiled: July 26, 1996Date of Patent: December 1, 1998Assignee: Opex CorporationInventors: Albert F. Stevens, Mark A. Stevens, Robert R. DeWitt, George L. Hayduchok, Edward Cohen
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Patent number: 5842693Abstract: In a method for the automated processing of bulk mail, envelopes are transferred to a receiving apparatus in bulk fashion (from incoming mail trays or the like) for the extraction of documents contained by the envelopes, and the extracted documents are delivered to a remittance processing device, preferably both automatically and without the need for human intervention. Subsequent processing of the extracted documents within the remittance processing device then proceeds in usual fashion, completing the acquisition of information which is necessary to ready such documents for deposit into the banking system. Also disclosed are various presorting functions so that only envelopes containing documents of a specified type will be fully processed, other sorting functions such as the identification of specific types of documents (invoices or checks) for separate processing, and the use of a single extraction device to deliver extracted documents to either one, or a series of remittance processing devices.Type: GrantFiled: November 13, 1997Date of Patent: December 1, 1998Assignee: Opex CorporationInventors: Albert F. Stevens, Mark A. Stevens, Robert R. Dewitt, William R. Lile, Michael E. York, Jeffrey L. Chodack, Roy E. Patterson
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Patent number: 5649628Abstract: To identify the orientation of specified documents, such as checks bearing magnetic ink markings, steps are taken to magnetize ink markings associated with the document, and to then detect magnetized ink markings on the document to develop electrical signals which can then be subjected to processing for identifying the orientation of the document based upon certain preestablished criteria. The result is a stand-alone device adapted to operate upon documents which are contained within envelopes to be subjected to an extraction procedure, prior to extraction from the envelopes, achieving a pre-processing of envelopes to identify those which contain the specified documents, and the orientation of the identified documents. The device is similarly adapted to operate upon the extracted documents, to identify those requiring special handling, and their orientation.Type: GrantFiled: July 25, 1996Date of Patent: July 22, 1997Assignee: Opex CorporationInventors: Mark A. Stevens, William R. Lile
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Patent number: 5540338Abstract: To identify the orientation of specified documents, such as checks bearing magnetic ink markings, steps are taken to magnetize ink markings associated with the document, and to then detect magnetized ink markings on the document to develop electrical signals which can then be subjected to processing for identifying the orientation of the document based upon certain preestablished criteria. The result is a stand-alone device adapted to operate upon documents which are contained within envelopes to be subjected to an extraction procedure, prior to extraction from the envelopes, achieving a pre-processing of envelopes to identify those which contain the specified documents, and the orientation of the identified documents. The device is similarly adapted to operate upon the extracted documents, to identify those requiring special handling, and their orientation.Type: GrantFiled: February 2, 1995Date of Patent: July 30, 1996Assignee: Opex CorporationInventors: Mark A. Stevens, William R. Lile
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Patent number: 5518121Abstract: In a method for the automated processing of bulk mail, envelopes are transferred to a receiving apparatus in bulk fashion (from incoming mail trays or the like) for the extraction of documents contained by the envelopes, and the extracted documents are delivered to a remittance processing device, preferably both automatically and without the need for human intervention. Subsequent processing of the extracted documents within the remittance processing device then proceeds in usual fashion, completing the acquisition of information which is necessary to ready such documents for deposit into the banking system. Also disclosed are various presorting functions so that only envelopes containing documents of a specified type will be fully processed, other sorting functions such as the identification of specific types of documents (invoices or checks) for separate processing, and the use of a single extraction device to deliver extracted documents to either one, or a series of remittance processing devices.Type: GrantFiled: April 28, 1994Date of Patent: May 21, 1996Assignee: Opex CorporationInventors: Albert F. Stevens, Mark A. Stevens, Robert R. DeWitt, William R. Lile, Michael E. York, Jeffrey L. Chodack, Roy E. Patterson
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Patent number: 5397003Abstract: To identify the orientation of specified documents, such as checks bearing magnetic ink markings, steps are taken to magnetize ink markings associated with the document, and to then detect magnetized ink markings on the document to develop electrical signals which can then be subjected to processing for identifying the orientation of the document based upon certain preestablished criteria. The result is a stand-alone device adapted to operate upon documents which are contained within envelopes to be subjected to an extraction procedure, prior to extraction from the envelopes, achieving a pre-processing of envelopes to identify those which contain the specified documents, and the orientation of the identified documents. The device is similarly adapted to operate upon the extracted documents, to identify those requiring special handling, and their orientation.Type: GrantFiled: August 30, 1993Date of Patent: March 14, 1995Assignee: Opex CorporationInventors: Mark A. Stevens, William R. Lile
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Patent number: 5310062Abstract: An apparatus for the automated processing of bulk mail, wherein envelopes are transferred to the apparatus in bulk fashion (from incoming mail trays or the like) for the extraction of documents contained by the envelopes, communicates with a remittance processing device, preferably both automatically and without the need for human intervention. Subsequent processing of the extracted documents within the remittance processing device then proceeds in usual fashion, completing the acquisition of information which is necessary to ready such documents for deposit into the banking system.Type: GrantFiled: May 22, 1992Date of Patent: May 10, 1994Assignee: Opex CorporationInventors: Albert F. Stevens, Mark A. Stevens, Robert R. DeWitt, William R. Lile, Michael E. York, Jeffrey L. Chodack, Roy E. Patterson