Patents by Inventor Paul E. Liggett
Paul E. Liggett 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: 8524621Abstract: A laminate material for lighter-than-air vehicles includes at least one monofilament yarn layer, a polymeric film layer adjacent to the at least one monofilament layer, and a metallized coating adjacent to said polymeric film layer. A clear film cover layer may be adhered to the metallized coating, and one or more fluorescent dyes may be incorporated into the clear film layer.Type: GrantFiled: September 20, 2006Date of Patent: September 3, 2013Assignee: Lockheed Martin CorporationInventors: Paul E. Liggett, Dennis L. Carter, Anthony L. Dunne, Dhiraj H. Darjee, Gerald W. Placko, James I. Mascolino, Lowell J. McEowen
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Patent number: 8256086Abstract: A method for producing a missile nose cone is disclosed. The method consists of manufacturing a first missile nose cone from a first lot of polymeric material and determining a first rupture value. The method further consists of manufacturing a second missile nose cone from a second lot of polymeric material and determining a second rupture value of the second missile nose cone. Both first and second lots of material are mixed into a test batch with one another based on their associated rupture values. An evaluation missile nose cone is then manufactured from the test batch and a determination is made as to whether the evaluation missile nose cone has a desired rupture value. If a desired rupture value is not obtained, then the mixing and evaluation steps are repeated.Type: GrantFiled: June 25, 2009Date of Patent: September 4, 2012Assignee: Lockheed Martin CorporationInventors: Robert A. Shutler, Margaret Rose Manning, Paul A. Leitch, Paul E. Liggett
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Patent number: 8168283Abstract: The present invention is generally directed to tapes or laminates designed for use in conjunction with lighter-than-air vehicles, platforms or other inflated structures. In one embodiment, the present invention is directed to tapes or laminates designed for use in logos and/or identification numbers that can be, for example, used on a lighter-than-air vehicle, platform or other inflated structure. In another embodiment, the present invention is directed to tapes or laminates that include, among other layers, at least one dichroic layer designed to produce a logo, letter and/or number that can be, for example, used on a lighter-than-air vehicle, platform or other inflated.Type: GrantFiled: February 29, 2008Date of Patent: May 1, 2012Assignee: Lockheed Martin CorporationInventor: Paul E. Liggett
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Patent number: 8158236Abstract: The present invention is generally directed to tapes designed for use in conjunction with lighter-than-air vehicles, platforms or other inflated structures. In one embodiment, the present invention is directed to conductive seam cover tape that can be, for example, used to protect and/or cover one or more seams in a lighter-than-air vehicle, platform or other inflated structure. In another embodiment, the present invention is directed to a conductive seam cover tape that can be, for example, used to protect and/or cover fabric panels or sections that are used to form lighter-than-air vehicles, platforms or other inflated structures that are in, one instance, designed for deployment at high altitudes.Type: GrantFiled: February 29, 2008Date of Patent: April 17, 2012Assignee: Lockheed Martin CorporationInventors: Paul E. Liggett, Steven L. Sinsabaugh, James I. Mascolino
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Patent number: 8152093Abstract: Various laminate structures and methods of making laminate structures are provided. In one embodiment, a laminate structure includes a base layer, a metallized layer comprising an electronic/embedded device which is adhered to the base layer. A coating layer which is adhered to the conductive layer, and a non-metallic dichroic layer adhered to the coating layer. In another embodiment, the non-metallic dichroic layer directly contacts the electronic/embedded devices of the conductive layer. The laminate structures herein can be used in the hull of the air vehicles to communicate with satellites and ground based receiving stations, for example. The electronic/embedded devices of the laminate structures provide a low weight solution to transmitting and receiving data within an air vehicle.Type: GrantFiled: April 18, 2008Date of Patent: April 10, 2012Assignee: Lockheed Martin CorporationInventors: Paul E. Liggett, Thomas M. Whiteleather
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Patent number: 8061214Abstract: The subject invention relates to an apparatus and process for testing various parameters and properties of high strength flexible, fabric laminates. In particular, the apparatus comprises a machine using individually controlled loads to test various material parameters.Type: GrantFiled: May 8, 2008Date of Patent: November 22, 2011Assignee: Lockheed Martin CorporationInventors: Paul E. Liggett, Dennis L. Carter, Nicholas L. Barnes, James I. Mascolino, Anthony L. Dunne, Aaron C. Graham
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Patent number: 8003185Abstract: A splice seam for joining various sections of fabric together is disclosed, wherein the fabric sections are initially delaminated into their constituent plies. The plies associated with each fabric section are then fully interleaved with each other, and bonded together. The amount of surface area between each interleaved plies can be adjusted as so as to achieve a desired level of load carrying strength between the fabric sections.Type: GrantFiled: November 13, 2009Date of Patent: August 23, 2011Assignee: Lockheed Martin CorporationInventor: Paul E. Liggett
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Publication number: 20110174056Abstract: The subject invention relates to an apparatus and process for testing various parameters and properties of high strength flexible, fabric laminates. In particular, the apparatus comprises a machine using individually controlled loads to test various material parameters.Type: ApplicationFiled: May 8, 2008Publication date: July 21, 2011Applicant: LOCKHEED MARTIN CORPORATIONInventors: Paul E. LIGGETT, Dennis L. CARTER, Nicholas L. BARNES, James I. MASCOLINO, Anthony L. Dunne, Aaron C. GRAHAM
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Patent number: 7878453Abstract: A power-generating laminate for an airship comprises a base fabric layer, a barrier layer disposed upon the fabric layer, an inner metal film layer disposed upon the barrier layer, a piezoelectric/pyroelectric layer disposed upon the inner metal layer, an outer metal layer disposed upon the piezoelectric/pyroelectric layer, and a cover layer disposed upon the outer metal layer. The power-generating laminate forms a gas-impervious envelope to maintain lifting gas and air therein, and is configured such that when the envelope is subjected to structural strain or experiences changes in temperature, power is generated, which is used to supply power to the various electrical systems aboard the airship.Type: GrantFiled: January 28, 2008Date of Patent: February 1, 2011Assignee: Lockheed Martin CorporationInventor: Paul E. Liggett
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Patent number: 7875795Abstract: An energy generating device for lighter-than-air vehicles having a gas impervious outer flexible fabric including a flexible photovoltaic array located on the outer layer of the gas impervious fabric; a thermocouple array located between the photovoltaic cells and the gas impervious fabric; a thermally conductive layer or heat spreader between the thermocouple array and the photovoltaic array and between the thermocouple array and the gas impervious flexible fabric; an electrically conductive means connected to said thermocouple array for drawing electrical power away from said thermocouple array; and an electrical load, such as an electrical storage device or a device that consumes electricity, for drawing electricity from the thermocouple array.Type: GrantFiled: February 29, 2008Date of Patent: January 25, 2011Assignee: Lockheed Martin CorporationInventor: Paul E. Liggett
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Publication number: 20100326182Abstract: A method for producing a missile nose cone is disclosed. The method consists of manufacturing a first missile nose cone from a first lot of polymeric material and determining a first rupture value. The method further consists of manufacturing a second missile nose cone from a second lot of polymeric material and determining a second rupture value of the second missile nose cone. Both first and second lots of material are mixed into a test batch with one another based on their associated rupture values. An evaluation missile nose cone is then manufactured from the test batch and a determination is made as to whether the evaluation missile nose cone has a desired rupture value. If a desired rupture value is not obtained, then the mixing and evaluation steps are repeated.Type: ApplicationFiled: June 25, 2009Publication date: December 30, 2010Inventors: Robert A. Shulter, Margaret Rose Manning, Paul A. Leitch, Paul E. Liggett
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Publication number: 20100227984Abstract: Rigid-rod polymer fiber filaments, such as poly (p-phenylenebenzobisoxazole) (PBO), having improved retention of physical properties are prepared by preparing a polymer solution and extruding that solution to form a filament, and then treating that filament with water, base solution, and water. The treated filament may be further heat-treated, or further treated with water. The treated filaments are less susceptible to the degradation caused by heat, humidity, and UV radiation.Type: ApplicationFiled: March 5, 2009Publication date: September 9, 2010Inventors: Thuy DANG, Paul E. Liggett, Dhiraj H. Darjee, Daniel H. Jones, James I. Mascolino
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Patent number: 7790261Abstract: A splice seam for joining various sections of fabric together is disclosed, wherein the fabric sections are initially delaminated into their constituent plies. The plies associated with each fabric section are then interleaved with each other, and bonded together. The amount of surface area between each interleaved plies can be adjusted as so as to achieve a desired level of load carrying strength between the fabric sections. Additionally, the splice seam may utilize an external and/or internal seam tape to increase the strength of the resultant seam.Type: GrantFiled: February 12, 2010Date of Patent: September 7, 2010Assignee: Lockheed Martin CorporationInventor: Paul E. Liggett
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Publication number: 20100143635Abstract: A splice seam for joining various sections of fabric together is disclosed, wherein the fabric sections are initially delaminated into their constituent plies. The plies associated with each fabric section are then interleaved with each other, and bonded together. The amount of surface area between each interleaved plies can be adjusted as so as to achieve a desired level of load carrying strength between the fabric sections. Additionally, the splice seam may utilize an external and/or internal seam tape to increase the strength of the resultant seam.Type: ApplicationFiled: February 12, 2010Publication date: June 10, 2010Inventor: Paul E. Liggett
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Patent number: 7687129Abstract: A splice seam for joining various sections of fabric together is disclosed, wherein the fabric sections are initially delaminated into their constituent plies. The plies associated with each fabric section are then interleaved with each other, and bonded together. The amount of surface area between each interleaved plies can be adjusted as so as to achieve a desired level of load carrying strength between the fabric sections. Additionally, the splice seam may utilize an external and/or internal seam tape to increase the strength of the resultant seam.Type: GrantFiled: January 8, 2007Date of Patent: March 30, 2010Assignee: Lockheed Martin CorporationInventor: Paul E. Liggett
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Publication number: 20100055372Abstract: A splice seam for joining various sections of fabric together is disclosed, wherein the fabric sections are initially delaminated into their constituent plies. The plies associated with each fabric section are then fully interleaved with each other, and bonded together. The amount of surface area between each interleaved plies can be adjusted as so as to achieve a desired level of load carrying strength between the fabric sections.Type: ApplicationFiled: November 13, 2009Publication date: March 4, 2010Inventor: Paul E. LIGGETT
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Publication number: 20090263633Abstract: Various laminate structures and methods of making laminate structures are provided. In one embodiment, a laminate structure includes a base layer, a metallized layer comprising an electronic/embedded device which is adhered to the base layer. A coating layer which is adhered to the conductive layer, and a non-metallic dichroic layer adhered to the coating layer. In another embodiment, the non-metallic dichroic layer directly contacts the electronic/embedded devices of the conductive layer. The laminate structures herein can be used in the hull of the air vehicles to communicate with satellites and ground based receiving stations, for example. The electronic/embedded devices of the laminate structures provide a low weight solution to transmitting and receiving data within an air vehicle.Type: ApplicationFiled: April 18, 2008Publication date: October 22, 2009Applicant: LOCKHEED MARTIN CORPORATIONInventors: Paul E. LIGGETT, Thomas M. WHITELEATHER
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Publication number: 20090220740Abstract: The present invention is generally directed to tapes or laminates designed for use in conjunction with lighter-than-air vehicles, platforms or other inflated structures. In one embodiment, the present invention is directed to tapes or laminates designed for use in logos and/or identification numbers that can be, for example, used on a lighter-than-air vehicle, platform or other inflated structure. In another embodiment, the present invention is directed to tapes or laminates that include, among other layers, at least one dichroic layer designed to produce a logo, letter and/or number that can be, for example, used on a lighter-than-air vehicle, platform or other inflated.Type: ApplicationFiled: February 29, 2008Publication date: September 3, 2009Applicant: LOCKHEED MARTIN CORPORATIONInventor: Paul E. LIGGETT
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Publication number: 20090217962Abstract: An energy generating device for lighter-than-air vehicles having a gas impervious outer flexible fabric including a flexible photovoltaic array located on the outer layer of the gas impervious fabric; a thermocouple array located between the photovoltaic cells and the gas impervious fabric; a thermally conductive layer or heat spreader between the thermocouple array and the photovoltaic array and between the thermocouple array and the gas impervious flexible fabric; an electrically conductive means connected to said thermocouple array for drawing electrical power away from said thermocouple array; and an electrical load, such as an electrical storage device or a device that consumes electricity, for drawing electricity from the thermocouple array.Type: ApplicationFiled: February 29, 2008Publication date: September 3, 2009Applicant: LOCKHEED MARTIN CORPORATIONInventor: Paul E. Liggett
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Publication number: 20090220726Abstract: The present invention is generally directed to tapes designed for use in conjunction with lighter-than-air vehicles, platforms or other inflated structures. In one embodiment, the present invention is directed to conductive seam cover tape that can be, for example, used to protect and/or cover one or more seams in a lighter-than-air vehicle, platform or other inflated structure. In another embodiment, the present invention is directed to a conductive seam cover tape that can be, for example, used to protect and/or cover fabric panels or sections that are used to form lighter-than-air vehicles, platforms or other inflated structures that are in, one instance, designed for deployment at high altitudes.Type: ApplicationFiled: February 29, 2008Publication date: September 3, 2009Applicant: LOCKHEED MARTIN CORPORATIONInventors: Paul E. Liggett, Steven L. Sinsabaugh, James I. Mascolino