Patents by Inventor David M. Wells
David M. Wells 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: 8484976Abstract: A fluidic effector provides enhanced plume mixing for an aircraft engine. Air jet injectors are located on both the external and internal cowl surfaces and angled in opposite directions to induce large scale vortices in the exhaust plume. The vortices mix actuation air with the exhaust plume to produce ejector action. The plume mixes out quickly, thereby lowering jet noise and jet exhaust temperature. The injectors have orientations and injection rates that are adjustable to allow variable mixing rates for use at different flight and engine conditions.Type: GrantFiled: June 12, 2008Date of Patent: July 16, 2013Assignee: Lockheed Martin CorporationInventors: Bradley C. Leland, David M. Wells
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Patent number: 8453457Abstract: Dielectric barrier discharge plasma actuators are used to manipulate exhaust flow within and behind a jet engine nozzle. The dielectric barrier discharge plasma actuators may be used to direct cooling airflow near the surface of the nozzle to reduce heating of the nozzle, create thrust vectoring, and reduce noise associated with the exhaust flow exiting the nozzle.Type: GrantFiled: August 26, 2009Date of Patent: June 4, 2013Assignee: Lockheed Martin CorporationInventors: Kerry B. Ginn, Stewart A. Jenkins, David M. Wells, Brent N. McCallum
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Patent number: 8371104Abstract: A vectoring nozzle with external actuation generates thrust vectoring by applying mechanical or fluidic actuation, or both, on the nozzle deck, external sidewalls, and/or air vehicle aft body to produce changes in the aft body flowfield and/or exhaust plume. An external mechanical sidewall may be integrated into a nozzle deck or side walls without the need for engine bleed to supply fluid injectors. An external fluidic vectoring system uses injectors or plasma devices located aft of the nozzle exit to vector the exhaust plume with no external moving parts. Elements of both mechanical and fluidic systems may be combined for a given application.Type: GrantFiled: October 10, 2008Date of Patent: February 12, 2013Assignee: Lockheed Martin CorporationInventors: David M. Wells, Brent N. McCallum, Kerry B. Ginn, Stewart A. Jenkins
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Patent number: 8353482Abstract: Systems to provide distributed flow control actuation to manage the behavior of a global flow field, are provided. An example of a system can include an aerodynamic structure having an outer surface, and an array of a plurality of nano-scale effectors connected to the outer surface of the aerodynamic structure to be in fluid contact with a flowing fluid when operationally flowing, to induce controlled, globally distributed disturbances at a viscous wall sublayer of a turbulent boundary layer of the flowing fluid when operationally flowing and to manipulate fluid behavior of the flowing fluid to thereby substantially reduce pressure loss associated with incipient separation of the fluid flow from portions of the aerodynamic structure.Type: GrantFiled: May 10, 2012Date of Patent: January 15, 2013Assignee: Lockheed Martin CorporationInventors: Daniel N. Miller, Brent N. McCallum, Stewart A. Jenkins, David M. Wells
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Publication number: 20120222768Abstract: Systems to provide distributed flow control actuation to manage the behavior of a global flow field, are provided. An example of a system can include an aerodynamic structure having an outer surface, and an array of a plurality of nano-scale effectors connected to the outer surface of the aerodynamic structure to be in fluid contact with a flowing fluid when operationally flowing, to induce controlled, globally distributed disturbances at a viscous wall sublayer of a turbulent boundary layer of the flowing fluid when operationally flowing and to manipulate fluid behavior of the flowing fluid to thereby substantially reduce pressure loss associated with incipient separation of the fluid flow from portions of the aerodynamic structure.Type: ApplicationFiled: May 10, 2012Publication date: September 6, 2012Applicant: LOCKHEED MARTIN CORPORATIONInventors: Daniel N. Miller, Brent N. McCallum, Stewart A. Jenkins, David M. Wells
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Patent number: 8240616Abstract: Systems and methods to provide distributed flow control actuation to manage the behavior of a global flow field, are provided. An example of a system can include an aerodynamic structure having an outer surface, and an array of a plurality of effectors connected to the outer surface of the aerodynamic structure to be in fluid contact with a flowing fluid when operationally flowing, to induce controlled, globally distributed disturbances at a viscous wall sublayer of a turbulent boundary layer of the flowing fluid when operationally flowing and to manipulate fluid behavior of the flowing fluid to thereby substantially reduce pressure loss associated with incipient separation of the fluid flow from portions of the aerodynamic structure.Type: GrantFiled: April 22, 2009Date of Patent: August 14, 2012Inventors: Daniel N. Miller, Brent N. McCallum, Stewart A. Jenkins, David M. Wells
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Publication number: 20110048025Abstract: Dielectric barrier discharge plasma actuators are used to manipulate exhaust flow within and behind a jet engine nozzle. The dielectric barrier discharge plasma actuators may be used to direct cooling airflow near the surface of the nozzle to reduce heating of the nozzle, create thrust vectoring, and reduce noise associated with the exhaust flow exiting the nozzle.Type: ApplicationFiled: August 26, 2009Publication date: March 3, 2011Applicant: Lockheed Martin CorporationInventors: Kerry B. Ginn, Stewart A. Jenkins, David M. Wells, Brent N. McCallum
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Publication number: 20100270433Abstract: Systems and methods to provide distributed flow control actuation to manage the behavior of a global flow field, are provided. An example of a system can include an aerodynamic structure having an outer surface, and an array of a plurality of effectors connected to the outer surface of the aerodynamic structure to be in fluid contact with a flowing fluid when operationally flowing, to induce controlled, globally distributed disturbances at a viscous wall sublayer of a turbulent boundary layer of the flowing fluid when operationally flowing and to manipulate fluid behavior of the flowing fluid to thereby substantially reduce pressure loss associated with incipient separation of the fluid flow from portions of the aerodynamic structure.Type: ApplicationFiled: April 22, 2009Publication date: October 28, 2010Applicant: Lockheed Martin CorporationInventors: Daniel N. Miller, Brent N. McCallum, Stewart A. Jenkins, David M. Wells
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Publication number: 20100089031Abstract: A vectoring nozzle with external actuation generates thrust vectoring by applying mechanical or fluidic actuation, or both, on the nozzle deck, external sidewalls, and/or air vehicle aft body to produce changes in the aft body flowfield and/or exhaust plume. An external mechanical sidewall may be integrated into a nozzle deck or side walls without the need for engine bleed to supply fluid injectors. An external fluidic vectoring system uses injectors or plasma devices located aft of the nozzle exit to vector the exhaust plume with no external moving parts. Elements of both mechanical and fluidic systems may be combined for a given application.Type: ApplicationFiled: October 10, 2008Publication date: April 15, 2010Applicant: LOCKHEED MARTIN CORPORATIONInventors: David M. Wells, Brent N. McCallum, Kerry B. Ginn, Stewart A. Jenkins
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Patent number: 7674656Abstract: A method that locates a plurality of die for forming a plurality of packaged integrated circuits. A frame is placed over the support structure, wherein the frame includes a plurality of openings therein and each opening of the plurality of openings has at least two walls. Each die of a plurality of die is placed over the support structure, wherein each die has at least two adjacent edges. The relative placing of the frame and the die results in each die being in an opening of the plurality of openings. Encapsulant is applied to the plurality of die. Either or both of the plurality of die and frame are moved in relation to the other in a manner that causes the two adjacent edges of each die of the plurality of die to substantially abut to and align with the two walls of an opening of the plurality of openings.Type: GrantFiled: December 6, 2006Date of Patent: March 9, 2010Assignee: Freescale Semiconductor, Inc.Inventors: Robert J. Wenzel, Matthew A. Ruston, David M. Wells
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Publication number: 20090314885Abstract: A fluidic effector provides enhanced plume mixing for an aircraft engine. Air jet injectors are located on both the external and internal cowl surfaces and angled in opposite directions to induce large scale vortices in the exhaust plume. The vortices mix actuation air with the exhaust plume to produce ejector action. The plume mixes out quickly, thereby lowering jet noise and jet exhaust temperature. The injectors have orientations and injection rates that are adjustable to allow variable mixing rates for use at different flight and engine conditions.Type: ApplicationFiled: June 12, 2008Publication date: December 24, 2009Applicant: LOCKHEED MARTIN CORPORATIONInventors: Bradley C. Leland, David M. Wells
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Publication number: 20080138938Abstract: A method that locates a plurality of die for forming a plurality of packaged integrated circuits. A frame is placed over the support structure, wherein the frame includes a plurality of openings therein and each opening of the plurality of openings has at least two walls. Each die of a plurality of die is placed over the support structure, wherein each die has at least two adjacent edges. The relative placing of the frame and the die results in each die being in an opening of the plurality of openings. Encapsulant is applied to the plurality of die. Either or both of the plurality of die and frame are moved in relation to the other in a manner that causes the two adjacent edges of each die of the plurality of die to substantially abut to and align with the two walls of an opening of the plurality of openings.Type: ApplicationFiled: December 6, 2006Publication date: June 12, 2008Inventors: Robert J. Wenzel, Matthew A. Ruston, David M. Wells
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Patent number: 6776210Abstract: A reinforcing post assembly for use with a sectional upward acting door to reinforce the door against high windloads includes an elongated C-channel shaped post reinforced with spaced apart gusset plates, and including retractable anchor pin members at its lower end. Elongated anchor links are mounted on the post upper end for engagement with a wall bracket which includes retainer pins and bosses formed thereon for retaining the links in a working position of the post. Spaced apart flexible cables are mounted on the post and may be connected at opposed eyes to retaining anchor pins mounted on the door sections and extending therebetween at spaced apart points on the door.Type: GrantFiled: January 15, 2003Date of Patent: August 17, 2004Assignee: Overhead Door CorporationInventor: David M. Wells
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Publication number: 20040134629Abstract: A reinforcing post assembly for use with a sectional upward acting door to reinforce the door against high windloads includes an elongated C-channel shaped post reinforced with spaced apart gusset plates, and including retractable anchor pin members at its lower end. Elongated anchor links are mounted on the post upper end for engagement with a wall bracket which includes retainer pins and bosses formed thereon for retaining the links in a working position of the post. Spaced apart flexible cables are mounted on the post and may be connected at opposed eyes to retaining anchor pins mounted on the door sections and extending therebetween at spaced apart points on the door.Type: ApplicationFiled: January 15, 2003Publication date: July 15, 2004Applicant: OVERHEAD DOOR CORPORATIONInventor: David M. Wells
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Patent number: 6745814Abstract: Guide track assemblies for upward acting doors include identical vertical and horizontal linear track sections and a curvilinear transition track section. The linear track sections include spaced-apart elongated slots formed at acute angles with respect to the longitudinal extent of the track sections for cooperation with retainer members mounted on angle-shaped jamb brackets. A header bracket also includes one or more retainer members thereon for disposition in similar elongated slots formed in the curvilinear track section. The linear track sections fit in telescoping relationship within enlarged end portions of the curvilinear track section. The configurations of the header brackets, jamb brackets and track sections facilitate quick assembly and easy positional adjustment of the track sections with respect to a door opening covered by a door guided by the track assemblies.Type: GrantFiled: November 4, 2002Date of Patent: June 8, 2004Assignee: Overhead Door CorporationInventors: Richard K. Hoofard, Celestino Duran, David M. Wells
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Patent number: 6729380Abstract: Track guided doors, such as upward acting multipanel garage doors are provided with roller guide member support brackets on opposite side edges of the panels for supporting guide rollers disposed in the opposed guide tracks. The support brackets include bearing bores formed by bore walls of the support brackets for supporting elongated stem or shaft portions of the roller guide members. The roller guide members may include leaf springs mounted in grooves on the guide member shaft portions or the support bracket may include elastically deflectable clips mounted thereon, the leaf springs and clips providing resilient members for engagement with the stem parts, respectively, to bias them into engagement with the bore walls of the support brackets to minimize noise generated by the guide members during movement of the door.Type: GrantFiled: June 3, 2002Date of Patent: May 4, 2004Assignee: Overhead Door CorporationInventors: L. Blake Whitley, David M. Wells
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Publication number: 20030221802Abstract: Track guided doors, such as upward acting multipanel garage doors are provided with roller guide member support brackets on opposite side edges of the panels for supporting guide rollers disposed in the opposed guide tracks. The support brackets include bearing bores formed by bore walls of the support brackets for supporting elongated stem or shaft portions of the roller guide members. The roller guide members may include leaf springs mounted in grooves on the guide member shaft portions or the support bracket may include elastically deflectable clips mounted thereon, the leaf springs and clips providing resilient members for engagement with the stem parts, respectively, to bias them into engagement with the bore walls of the support brackets to minimize noise generated by the guide members during movement of the door.Type: ApplicationFiled: June 3, 2002Publication date: December 4, 2003Applicant: OVERHEAD DOOR CORPORATIONInventors: L. Blake Whitley, David M. Wells
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Publication number: 20030070771Abstract: Guide track assemblies for upward acting doors include identical vertical and horizontal linear track sections and a curvilinear transition track section. The linear track sections include spaced-apart elongated slots formed at acute angles with respect to the longitudinal extent of the track sections for cooperation with retainer members mounted on angle-shaped jamb brackets. A header bracket also includes one or more retainer members thereon for disposition in similar elongated slots formed in the curvilinear track section. The linear track sections fit in telescoping relationship within enlarged end portions of the curvilinear track section. The configurations of the header brackets, jamb brackets and track sections facilitate quick assembly and easy positional adjustment of the track sections with respect to a door opening covered by a door guided by the track assemblies.Type: ApplicationFiled: November 4, 2002Publication date: April 17, 2003Applicant: OVERHEAD DOOR CORPORATIONInventors: Richard K. Hoofard, Celestino Duran, David M. Wells
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Patent number: 6527035Abstract: Guide track assemblies for upward acting doors include identical vertical and horizontal linear track sections and a curvilinear transition track section. The linear track sections include spaced-apart elongated slots formed at acute angles with respect to the longitudinal extent of the track sections for cooperation with retainer members mounted on angle-shaped jamb brackets. A header bracket also includes one or more retainer members thereon for disposition in similar elongated slots formed in the curvilinear track section. The linear track sections fit in telescoping relationship within enlarged end portions of the curvilinear track section. The configurations of the header brackets, jamb brackets and track sections facilitate quick assembly and easy positional adjustment of the track sections with respect to a door opening covered by a door guided by the track assemblies.Type: GrantFiled: May 30, 2001Date of Patent: March 4, 2003Assignee: Overhead Door CorporationInventors: Richard K. Hoofard, Celestino Duran, David M. Wells
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Publication number: 20020003031Abstract: Guide track assemblies for upward acting doors include identical vertical and horizontal linear track sections and a curvilinear transition track section. The linear track sections include spaced-apart elongated slots formed at acute angles with respect to the longitudinal extent of the track sections for cooperation with retainer members mounted on angle-shaped jamb brackets. A header bracket also includes one or more retainer members thereon for disposition in similar elongated slots formed in the curvilinear track section. The linear track sections fit in telescoping relationship within enlarged end portions of the curvilinear track section. The configurations of the header brackets, jamb brackets and track sections facilitate quick assembly and easy positional adjustment of the track sections with respect to a door opening covered by a door guided by the track assemblies.Type: ApplicationFiled: May 30, 2001Publication date: January 10, 2002Applicant: OVERHEAD DOOR CORPORATIONInventors: Richard K. Hoofard, Celestino Duran, David M. Wells