Patents by Inventor David A. Fowler
David A. Fowler 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: 9584625Abstract: In a system and method for a web based system using events and pushed web content to interact with remote users for notifications and data collections operations may be performed including receiving, from a computing device, event data concerning a job being performed by a piece of agricultural equipment wherein the event data includes an identifier associated with the agricultural equipment. A database may be queried to determine a subscriber associated with the identifier. The event data may be transmitted to a network address associated with the subscriber. A response message may be received from the subscriber and forwarded to the computing device. The computing device may connect with the subscriber via a web application address included in the response message.Type: GrantFiled: July 9, 2012Date of Patent: February 28, 2017Assignee: Raven Industries, Inc.Inventors: David A. Fowler, Mark Ingalls, Kelby R. Kleinsasser
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Publication number: 20140263709Abstract: This document discusses, among other things, apparatus and methods for a multi-section applicator having variable-rate sections. In an example, an apparatus can include at least one distribution manifold, a user interface, and an applicator controller. The at least one distribution manifold distributes a substance and can include an inlet port configured to receive the substance, a plurality of outlet ports, one or more sensors located at an outlet port, a controllable valve that supplies the substance to the inlet port. The applicator controller measures a value of the distribution parameter using the sensor signal produced by the at least one sensor of an outlet port, detects when the measured value differs from a specified target value by more than a specified error threshold value, and presents an indication, using the user interface, that the measured value differs from the target value according to the detection.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Raven Industries, Inc.Inventors: Jared E. Kocer, Josh Grabow, Warren L. Thompson, Steve S. Jensen, Patrick Hansen, Nick Michael, Scott Porter, Clarence Walt Fowler, David A. Fowler
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Publication number: 20130179493Abstract: In a system and method for a web based system using events and pushed web content to interact with remote users for notifications and data collections operations may be performed including receiving, from a computing device, event data concerning a job being performed by a piece of agricultural equipment wherein the event data includes an identifier associated with the agricultural equipment. A database may be queried to determine a subscriber associated with the identifier. The event data may be transmitted to a network address associated with the subscriber. A response message may be received from the subscriber and forwarded to the computing device. The computing device may connect with the subscriber via a web application address included in the response message.Type: ApplicationFiled: July 9, 2012Publication date: July 11, 2013Inventors: David A. Fowler, Mark Ingalls, Kelby R. Kleinsasser
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Patent number: 6512992Abstract: A means of accurately determining the position of a selected location such as at the end of a center-pivot irrigation system by using two Global Positioning System (GPS) receivers. The first GPS receiver is located at a fixed, known position such as at the center of the pivoting irrigation system while the second GPS receiver is located on a moving portion of the irrigation system. The first GPS receiver compares the GPS receiver reported position against the actual position and reports by wire or radio link the position differences to the second GPS, where the differences are used to remove errors from the second receiver's measured position.Type: GrantFiled: March 5, 1999Date of Patent: January 28, 2003Assignee: Raven Industries, Inc.Inventors: Clarence W. Fowler, Gerald D. Powell, David A. Fowler
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Patent number: 6363321Abstract: An integrated guidance system for use in swath guidance applications combines the display of swath navigation information with swath guidance system information. A processor receives information from an external positioning system such as a Global Positioning System receiver and generates course correction data derived from swath parameters selected by the user from a displayed menu of options using a control interface that is integrated with the display and processor or is located externally. The swath navigation information is displayed graphically and numerically. The entire apparatus is compact and mountable within the operative view of the user as he operates the equipment to be guided, thereby reducing hazard and navigational error.Type: GrantFiled: January 31, 2000Date of Patent: March 26, 2002Assignee: Starlink, Inc.Inventors: David A. Fowler, David L. Hirsch, Clarence W. Fowler, David L. Hindman, Charles L. Ladwig, IV, Gerald D. Powell
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Patent number: 6160858Abstract: A method and apparatus for demodulating and decoding an MSK signal utilizing synchronous accumulation and simultaneous synchronization of reference carrier and MSK data clocks enables a GPS correlator channel in a multi-channel GPS receiver to be used for processing MSK signals. The PRN code epochs are synchronized with the MSK data clocks and the process of de-spreading with a PRN code is disabled in order to obtain coherent MSK demodulation without corrupting the MSK signal with a PRN code within the channel.Type: GrantFiled: August 4, 1997Date of Patent: December 12, 2000Assignee: Starlink, Inc.Inventors: David L. Hindman, Clarence W. Fowler, Gerald D. Powell, David A. Fowler, David L. Hirsch, Charles L. Ladwig, IV
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Patent number: 6104979Abstract: An integrated guidance system for use in swath guidance applications combines the display of swath navigation information with swath guidance system information. A processor receives information from an external positioning system such as a Global Positioning System receiver and generates course correction data derived from swath parameters selected by the user from a displayed menu of options using a control interface that is integrated with the display and processor or is located externally. The swath navigation information is displayed graphically and numerically. The entire apparatus is compact and mountable within the operative view of the user as he operates the equipment to be guided, thereby reducing hazard and navigational error.Type: GrantFiled: June 11, 1997Date of Patent: August 15, 2000Assignee: Starlink, Inc.Inventors: David A. Fowler, David L. Hirsch, Clarence W. Fowler, David L. Hindman, Charles L. Ladwig, IV, Gerald D. Powell
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Patent number: 5999795Abstract: An apparatus for extending the practical lengths over which coaxial cables can be used to transfer signal information from a Global Positioning System (GPS) antenna to a GPS receiver. The apparatus converts the GPS signal frequency of 1.57542 GHz to a frequency low enough to be transferred long distances over coaxial cables without significant signal attenuation and then converts the signal back to the original frequency without the introduction of frequency errors. The invention is not restricted from being used at other frequencies where system design parameters makes it practical.Type: GrantFiled: September 10, 1997Date of Patent: December 7, 1999Assignee: Starlink Inc.Inventors: Clarence W. Fowler, Louis J. Vaccaro, Jr., David L. Hindman, Gerald D. Powell, David A. Fowler, David L. Hirsch, Charles L. Ladwig, IV
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Patent number: 5235755Abstract: An angle finding device particularly in the form of a hammer having a circular or part circular spirit level vial (8) provided with a graduated scale mounted in the hammer head (3). A straight spirit level vial (10, 11) may be positioned across a diameter of the circular vial (8) such that its axis lies at an angle .alpha. to the axis (A) of the shaft. This combination enables the hammer to be used as an angle finding device and a general levelling device when the striking face (6) of the hammer and the end (5) of the shaft are placed against a work surface (W) to be level tested.Type: GrantFiled: December 2, 1991Date of Patent: August 17, 1993Inventor: David A. Fowler