Patents by Inventor Mark A. Murdoch
Mark A. Murdoch 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).
-
Patent number: 11518541Abstract: A composite panel having a plurality of carbon plies, a perforated metallic foil comprising several apertures and being directly secured to the plurality of carbon plies, and a protective layer made from resin reinforced with fibers which is secured to the metallic foil. The perforated metallic foil is embedded in the protective layer through its apertures. A free surface of the protective layer forms a top side of the composite panel. The thickness of the protective layer between the top side of the composite panel and the perforated metallic foil is at least 15 micrometers and the perforated metallic foil has a thickness of not more than 30 micrometers. The plurality of apertures in the aggregate defines an open area of not more than 40% of the surface area and a maximum distance between two opposed points in a perimeter of an aperture is equal to or less than 3 mm.Type: GrantFiled: April 16, 2019Date of Patent: December 6, 2022Assignee: AIRBUS SASInventors: Mohammed Salim Rahamat, Mark A. Murdoch, Kenneth William Burtt, Brett Alexander Macdonald, Franck Flourens, Richard Murillo, Valentin Garcia Martinez, Pablo Perez Cabrero
-
Publication number: 20210122492Abstract: A composite panel having a plurality of carbon plies, a perforated metallic foil comprising several apertures and being secured to the plurality of carbon plies, and a protective layer made from resin secured to the metallic foil. The perforated metallic foil is embedded in the protective layer through its apertures. A free surface of the protective layer forms a top side of the composite panel. The thickness of the protective layer between the top side of the composite panel and the perforated metallic foil is at least 15 micrometers and the perforated metallic foil has a thickness of not more than 30 micrometers.Type: ApplicationFiled: April 16, 2019Publication date: April 29, 2021Inventors: Mohammed Salim RAHAMAT, Mark A. MURDOCH, Kenneth William BURTT, Brett Alexander MACDONALD, Franck FLOURENS, Richard MURILLO, Valentin GARCIA MARTINEZ, Pablo PEREZ CABRERO
-
Patent number: 10604272Abstract: A metallic foil for lightning strike protection in a composite aerospace structure having a length, a width, and a thickness of not more than 30 microns. There are a plurality of pores of a predefined geometric shape extending through the thickness of the metallic foil and being distributed across a surface area defined by the length and the width of the metallic foil. The plurality of pores in the aggregate define an open area of not more than 40% of the surface area and the metallic foil has a weight of not more than 115 g/m2. The metallic foil has a weight to conductivity ratio of not more than 0.40 gram-ohms per square.Type: GrantFiled: May 30, 2019Date of Patent: March 31, 2020Assignee: Airbus SASInventors: Mohammed Salim Rahamat, Mark A. Murdoch, Kenneth William Burtt, Jr., Brett Alexander Macdonald, Franck Flourens, Richard Murillo, Valentin García Martínez, Pablo Perez Cabrero
-
Publication number: 20190344905Abstract: A metallic foil for lightning strike protection in a composite aerospace structure having a length, a width, and a thickness of not more than 30 microns. There are a plurality of pores of a predefined geometric shape extending through the thickness of the metallic foil and being distributed across a surface area defined by the length and the width of the metallic foil. The plurality of pores in the aggregate define an open area of not more than 40% of the surface area and the metallic foil has a weight of not more than 115 g/m2. The metallic foil has a weight to conductivity ratio of not more than 0.40 gram-ohms per square.Type: ApplicationFiled: May 30, 2019Publication date: November 14, 2019Inventors: Mohammed Salim Rahamat, Mark A. Murdoch, Kenneth William Burtt, JR., Brett Alexander Macdonald, Franck Flourens, Richard Murillo, Valentin García Martínez, Pablo Perez Cabrero
-
Patent number: 10351259Abstract: A metallic foil for lightning strike protection in a composite aerospace structure having a length, a width, and a thickness of not more than 30 microns. There are a plurality of pores of a predefined geometric shape extending through the thickness of the metallic foil and being distributed across a surface area defined by the length and the width of the metallic foil. The plurality of pores in the aggregate define an open area of not more than 40% of the surface area and the metallic foil has a weight of not more than 115 g/m2. The metallic foil has a weight to conductivity ratio of not more than 0.40 gram-ohms per square.Type: GrantFiled: May 8, 2018Date of Patent: July 16, 2019Assignee: Airbus SASInventors: Mohammed Salim Rahamat, Mark A. Murdoch, Kenneth William Burtt, Brett Alexander Macdonald, Franck Flourens, Richard Murillo, Valentin Garciá Martínez, Pablo Perez Cabrero
-
Publication number: 20180257790Abstract: A metallic foil for lightning strike protection in a composite aerospace structure having a length, a width, and a thickness of not more than 30 microns. There are a plurality of pores of a predefined geometric shape extending through the thickness of the metallic foil and being distributed across a surface area defined by the length and the width of the metallic foil. The plurality of pores in the aggregate define an open area of not more than 40% of the surface area and the metallic foil has a weight of not more than 115 g/m2. The metallic foil has a weight to conductivity ratio of not more than 0.40 gram-ohms per square.Type: ApplicationFiled: May 8, 2018Publication date: September 13, 2018Inventors: Mohammed Salim Rahamat, Mark A. Murdoch, Kenneth William Burtt, Brett Alexander Macdonald
-
Publication number: 20070287111Abstract: A variable demand radiant heating system applies variable burner control technology to singular or multi-burner radiant heating systems. A radiant heater consists of a burner connected to an elongated heat exchanger tube. The combustion air is supplied to the burner via blower or draft inducer. Fuel is supplied to the burner via fuel regulator. Fuel and air are mixed in burner and communicated to the inlet end of the heat exchanger tube. Spent products of combustion are expelled from the heat exchanger at the outlet end. The burner controls continuously vary gas supply pressure (volume), via a modulating gas regulator, and combustion air pressure (volume), via a variable speed blower, communicated to the burner mixing chamber, which in turn, varies the burner input on a continuous curve (not stepped or staged) within a pre-determined input range as heat demand varies.Type: ApplicationFiled: March 26, 2007Publication date: December 13, 2007Inventors: Patrick Stone, Mark Murdoch
-
Publication number: 20060169275Abstract: A variable demand radiant heating system applies multi stage burner control technology to singular or multi-burner radiant heating systems. A radiant heater consists of a burner connected to an elongated heat exchanger tube. The combustion air is supplied to the burner via blower or draft inducer. Fuel is supplied to the burner via fuel regulator. Fuel and air are mixed in burner and communicated to the inlet end of the heat exchanger tube. Spent products of combustion are expelled from the heat exchanger at the outlet end. The burner controls provide gas supply pressure (volume), via a multi-stage or modulating gas regulator, and combustion air pressure (volume), via a combustion air blower with a plurality of operating speeds, communicated to the burner mixing chamber, which in turn, varies the burner input between two or more inputs that are stepped or staged within a pre-determined input range as heat demand varies.Type: ApplicationFiled: February 2, 2005Publication date: August 3, 2006Inventor: Mark Murdoch
-
Publication number: 20050266362Abstract: A variable demand radiant heating system applies variable burner control technology to singular or mulit-burner radiant heating systems. A radiant heater consists of a burner connected to an elongated heat exchanger tube. The combustion air is supplied to the burner via blower or draft inducer. Fuel is supplied to the burner via fuel regulator. Fuel and air are mixed in burner and communicated to the inlet end of the heat exchanger tube. Spent products of combustion are expelled from the heat exchanger at the outlet end. The burner controls continuously vary gas supply pressure (volume), via a modulating gas regulator, and combustion air pressure (volume), via a variable speed blower, communicated to the burner mixing chamber, which in turn, varies the burner input on a continuous curve (not stepped or staged) within a pre-determined input range as heat demand varies.Type: ApplicationFiled: June 1, 2004Publication date: December 1, 2005Inventors: Patrick Stone, Mark Murdoch
-
Patent number: 6481434Abstract: A gas fired infrared radiant heating system of improved thermal output. The present invention solves problems associated with prior art designs by providing a single gas delivery system for delivering combustible gas to two or more burner assemblies. The invention consists of a burner housing (10) with two or more burner assemblies (18), each of which can be connected to a typical radiant tube heat exchanger assembly (12). The burner housing contains a single gas delivery system including a valve (14), a single control circuit module (30), a single blower proving switch (50), and a single manifold (16) which will distribute the gas to the multiple radiant tube heat exchanger assemblies (12). In addition, in positive pressure configurations, the burner housing will also have a single air fan (38), whereas in negative pressure configurations of the heating system one or more exhaust fans may be utilized.Type: GrantFiled: February 5, 2002Date of Patent: November 19, 2002Assignee: Roberts-Gordon LLCInventor: Mark Murdoch
-
Publication number: 20020083942Abstract: A gas fired infrared radiant heating system of improved thermal output. The present invention solves problems associated with prior art designs by providing a single gas delivery system for delivering combustible gas to two or more burner assemblies. The invention consists of a burner housing (10) with two or more burner assemblies (18), each of which can be connected to a typical radiant tube heat exchanger assembly (12). The burner housing contains a single gas delivery system including a valve (14), a single control circuit module (30), a single blower proving switch (50), and a single manifold (16) which will distribute the gas to the multiple radiant tube heat exchanger assemblies (12). In addition, in positive pressure configurations, the burner housing will also have a single air fan (38), whereas in negative pressure configurations of the heating system one or more exhaust fans may be utilized.Type: ApplicationFiled: February 5, 2002Publication date: July 4, 2002Applicant: Roberts-Gordon LLC, a corporation of the state of DelawareInventor: Mark Murdoch