Patents by Inventor Douglas M. Trout
Douglas M. Trout 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: 9653904Abstract: An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event.Type: GrantFiled: May 7, 2015Date of Patent: May 16, 2017Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Veselin Skendzic, Dhruba P. Das, Gary W. Scheer, James R. Kesler, Douglas M. Trout, Mark L. Zeller
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Patent number: 9515475Abstract: An electro-optical (EO) radiation collector for collecting and/or transmitting EO radiation (which may include EO radiation in the visible wavelengths) for transmission to an EO sensor. The EO radiation collector may be used with an arc flash detection device or other protective system, such as an intelligent electronic device (IED). The arc flash detection device may detect an arc flash event based upon EO radiation collected by and/or transmitted from the EO radiation collector. The EO radiation collector may receive an EO conductor cable, an end of which may be configured to receive EO radiation. A portion of the EO radiation received by the EO radiation collector may be transmitted into the EO conductor cable and transmitted to the arc flash detection device. The EO radiation collector may be adapted to receive a second EO conductor cable, which may be used to provide redundant EO transmission and/or self-test capabilities.Type: GrantFiled: August 11, 2014Date of Patent: December 6, 2016Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: James R. Kesler, Douglas M. Trout, Gary W. Scheer
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Publication number: 20150244160Abstract: An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event.Type: ApplicationFiled: May 7, 2015Publication date: August 27, 2015Inventors: Edmund O. Schweitzer, III, Veselin Skendzic, Dhruba P. Das, Gary W. Scheer, James R. Kesler, Douglas M. Trout
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Patent number: 9046391Abstract: An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event.Type: GrantFiled: August 21, 2012Date of Patent: June 2, 2015Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Veselin Skendzic, Gary W. Scheer, James R. Kesler, Douglas M. Trout, Dhruba P. Das
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Publication number: 20140346327Abstract: An electro-optical (EO) radiation collector for collecting and/or transmitting EO radiation (which may include EO radiation in the visible wavelengths) for transmission to an EO sensor. The EO radiation collector may be used with an arc flash detection device or other protective system, such as an intelligent electronic device (IED). The arc flash detection device may detect an arc flash event based upon EO radiation collected by and/or transmitted from the EO radiation collector. The EO radiation collector may receive an EO conductor cable, an end of which may be configured to receive EO radiation. A portion of the EO radiation received by the EO radiation collector may be transmitted into the EO conductor cable and transmitted to the arc flash detection device. The EO radiation collector may be adapted to receive a second EO conductor cable, which may be used to provide redundant EO transmission and/or self-test capabilities.Type: ApplicationFiled: August 11, 2014Publication date: November 27, 2014Inventors: James R. Kesler, Douglas M. Trout, Gary W. Scheer
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Patent number: 8803069Abstract: An electro-optical (EO) radiation collector for collecting and/or transmitting EO radiation (which may include EO radiation in the visible wavelengths) for transmission to an EO sensor. The EO radiation collector may be used with an arc flash detection device or other protective system, such as an intelligent electronic device (IED). The arc flash detection device may detect an arc flash event based upon EO radiation collected by and/or transmitted from the EO radiation collector. The EO radiation collector may receive an EO conductor cable, an end of which may be configured to receive EO radiation. A portion of the EO radiation received by the EO radiation collector may be transmitted into the EO conductor cable and transmitted to the arc flash detection device. The EO radiation collector may be adapted to receive a second EO conductor cable, which may be used to provide redundant EO transmission and/or self-test capabilities.Type: GrantFiled: September 18, 2009Date of Patent: August 12, 2014Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: James R. Kesler, Douglas M. Trout, Gary W. Scheer
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Patent number: 8735798Abstract: An electro-optical (EO) radiation collector for collecting and/or transmitting EO radiation (which may include EO radiation in the visible wavelengths) for transmission to an EO sensor. The EO radiation collector may be used with an arc flash detection device or other protective system, such as an intelligent electronic device (IED). The arc flash detection device may detect an arc flash event based upon EO radiation collected by and/or transmitted from the EO radiation collector. The EO radiation collector may receive an EO conductor cable, an end of which may be configured to receive EO radiation. A portion of the EO radiation received by the EO radiation collector may be transmitted into the EO conductor cable and transmitted to the arc flash detection device. The EO radiation collector may be adapted to receive a second EO conductor cable, which may be used to provide redundant EO transmission and/or self-test capabilities.Type: GrantFiled: August 21, 2012Date of Patent: May 27, 2014Assignee: Schweitzer Engineering Laboratories IncInventors: James R. Kesler, Douglas M. Trout, Gary W. Scheer
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Publication number: 20120312971Abstract: An electro-optical (EO) radiation collector for collecting and/or transmitting EO radiation (which may include EO radiation in the visible wavelengths) for transmission to an EO sensor. The EO radiation collector may be used with an arc flash detection device or other protective system, such as an intelligent electronic device (IED). The arc flash detection device may detect an arc flash event based upon EO radiation collected by and/or transmitted from the EO radiation collector. The EO radiation collector may receive an EO conductor cable, an end of which may be configured to receive EO radiation. A portion of the EO radiation received by the EO radiation collector may be transmitted into the EO conductor cable and transmitted to the arc flash detection device. The EO radiation collector may be adapted to receive a second EO conductor cable, which may be used to provide redundant EO transmission and/or self-test capabilities.Type: ApplicationFiled: August 21, 2012Publication date: December 13, 2012Applicant: SCHWEITZER ENGINEERING LABORATORIES, INC.Inventors: James R. Kesler, Douglas M. Trout, Gary W. Scheer
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Publication number: 20120312977Abstract: An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event.Type: ApplicationFiled: August 21, 2012Publication date: December 13, 2012Applicant: SCHWEITZER ENGINEERING LABORATORIES, INC.Inventors: Edmund O. Schweitzer, III, Veselin Skendzic, Gary W. Scheer, James R. Kesler, Douglas M. Trout, Dhruba P. Das
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Patent number: 8319173Abstract: An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event.Type: GrantFiled: September 18, 2009Date of Patent: November 27, 2012Assignee: Schweitzer Engineering Laboratories IncInventors: Edmund O. Schweitzer, III, Veselin Skendzic, Gary W. Scheer, James R. Kesler, Douglas M. Trout, Dhruba P. Das
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Publication number: 20100072355Abstract: An method for automatically testing an arc flash detection system by periodically or continually transmitting electro-optical (EO) radiation through one or more transmission cables electro-optically coupled to respective EO radiation collectors. A test EO signal may pass through the EO radiation collector to be received by an EO sensor. An attenuation of the EO signal may be determined by comparing the intensity of the transmitted EO signal to an intensity of the received EO signal. A self-test failure may be detected if the attenuation exceeds a threshold. EO signals may be transmitted according to a particular pattern (e.g., a coded signal) to allow an arc flash detection system to distinguish the test EO radiation from EO radiation indicative of an arc flash event.Type: ApplicationFiled: September 18, 2009Publication date: March 25, 2010Inventors: Edmund O. Schweitzer, III, Veselin Skendzic, Gary W. Scheer, James R. Kesler, Douglas M. Trout, Dhruba P. Das
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Publication number: 20100072352Abstract: An electro-optical (EO) radiation collector for collecting and/or transmitting EO radiation (which may include EO radiation in the visible wavelengths) for transmission to an EO sensor. The EO radiation collector may be used with an arc flash detection device or other protective system, such as an intelligent electronic device (IED). The arc flash detection device may detect an arc flash event based upon EO radiation collected by and/or transmitted from the EO radiation collector. The EO radiation collector may receive an EO conductor cable, an end of which may be configured to receive EO radiation. A portion of the EO radiation received by the EO radiation collector may be transmitted into the EO conductor cable and transmitted to the arc flash detection device. The EO radiation collector may be adapted to receive a second EO conductor cable, which may be used to provide redundant EO transmission and/or self-test capabilities.Type: ApplicationFiled: September 18, 2009Publication date: March 25, 2010Inventors: James R. Kesler, Douglas M. Trout, Gary W. Scheer
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Patent number: D619480Type: GrantFiled: September 18, 2009Date of Patent: July 13, 2010Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: James R. Kesler, Douglas M. Trout