Patents by Inventor Michael J. O'Brien
Michael J. O'Brien 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: 8269685Abstract: Methods, antennas and other embodiments associated with impedance matching an antenna feed slot. A slot antenna includes a planar metal sheet. A feed slot opening is formed in the metal sheet. The feed slot has a first end and a second end. A tapered opening is formed in the metal sheet. Adjacent sides of the tapered opening touch the first end of the feed slot. An impedance matching star shaped opening is formed in the metal. The impedance matching star shaped opening touches the second end of the feed slot.Type: GrantFiled: May 7, 2010Date of Patent: September 18, 2012Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventors: Matthew M. McQuaid, Michael J. O'Brien, Nicolas S. Peterson, Basil W. Thompson, Duane A. Beaulieu, Kari M. Karwedsky
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Patent number: 8246303Abstract: A system for actively controlling the span-wise rotational twist of a hollow beam along its longitudinal axis, including a hollow beam structure having a leading edge and a trailing edge region, the beam being split along its length, an actuator arranged between split surfaces of the beam, the actuator adapted to move the split surfaces in a longitudinal direction relative to each other, inducing a twist in the beam. In one embodiment, the actuator is a plurality of thermal expansion material blocks alternating with mechanical compression blocks, the thermal expansion material blocks being heated to cause expansion in the spanwise longitudinal direction. Other alternative actuators include a rotary actuators such as a threaded screw, piezoelectric or magnetostrictive blocks, a hydraulic actuator, or a pneumatic actuator. In an embodiment, the beam is an airfoil shape.Type: GrantFiled: September 18, 2008Date of Patent: August 21, 2012Assignee: The United States of America as represented by the Secretary of the NavyInventors: James P Thomas, Michael J O'Brien, William R Pogue, III
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Patent number: 8092722Abstract: A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition comprises a functionalized poly(phenylene ether), an unsaturated polyester, and/or a vinylester resin. The varnish composition further comprises a reactive liquid monomer and a block copolymer comprising a poly(olefin) block, or a poly(diolefin) block, and at least one terminal poly(alkenyl aromatic) block comprising repeat units derived from an alkenyl aromatic monomer. When cured, the polymers and reactive liquid monomer forms an electrically insulative thermoset that provides superior crack resistance.Type: GrantFiled: September 30, 2008Date of Patent: January 10, 2012Assignee: Sabic Innovative Plastics IP B.V.Inventors: Michael J. O'Brien, Patricia Chapman Irwin, Qiwei Lu
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Publication number: 20110290620Abstract: A gravity conveyor assembly includes a first track member downwardly pitched from a first end toward a second end with respect to a first reference plane oriented parallel to a ground surface. A second track member positioned directly above the first track member is downwardly pitched from a first end toward an opposite second end with respect to a second reference plane oriented parallel to the ground surface. A curved track member connects the second track member second end to the first track member first end and defines a vertically downward oriented arc. A wheeled cart is moveable from the second track member first end to the first track member second end by gravity. A cart travel direction reverses from a first travel direction on the second track member to an opposite second travel direction on the first track member as the cart downwardly traverses the curved track member.Type: ApplicationFiled: June 1, 2010Publication date: December 1, 2011Applicant: BLEICHERT FOERDERANLAGEN GMBHInventor: Michael J. O'Brien
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Publication number: 20110294966Abstract: A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition includes a functionalized poly(phenylene ether) having at least one aliphatic unsaturated group and exhibiting an intrinsic viscosity in the range of about 0.06 to about 0.25 deciliter per gram, measured in chloroform at 25° C. The varnish composition further includes an unsaturated polyester resin or vinyl ester resin, a reactive liquid monomer, and a compatibilizing agent. When cured, the polymers and reactive liquid monomer form an electrically insulative thermoset.Type: ApplicationFiled: August 8, 2011Publication date: December 1, 2011Inventors: Michael J. O'Brien, Patricia Chapman Irwin, Qiwei Lu
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Patent number: 8058359Abstract: A process for preparing a redistributed poly(phenylene ether), comprising reacting a poly(phenylene ether) in a reactive diluent monomer with a polyhydric phenol in the presence of a redistribution catalyst to form a composition comprising a redistributed poly(phenylene ether) in the reactive monomer diluent. The redistributed poly(phenylene ether) exhibits an intrinsic viscosity in the range of about 0.06 deciliters per gram to about 0.25 deciliters per gram, measured in chloroform at 25° C. The redistributed poly(phenylene ether) can be functionalized and admixed with unsaturated resin such as an unsaturated polyester resin or vinyl ester resin to obtain a varnish composition that, when cured, can form an electrically insulative thermoset.Type: GrantFiled: November 10, 2008Date of Patent: November 15, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Patricia Chapman Irwin, Qiwei Lu, Michael J. O'Brien
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Publication number: 20110273349Abstract: Methods, antennas and other embodiments associated with impedance matching an antenna feed slot are based on a fractal shape. A slot antenna includes a planar metal sheet. A feed slot opening is formed in the metal sheet. The feed slot has a first end and a second end. A tapered opening is formed in the metal sheet. Adjacent sides of the tapered opening touch the first end of the feed slot. An impedance matching fractal shaped opening is formed in the metal. The impedance matching fractal shaped opening touches the second end of the feed slot.Type: ApplicationFiled: May 7, 2010Publication date: November 10, 2011Applicant: BAE Systems Information And Electronic Systems Integration Inc.Inventors: Matthew M. McQuaid, Michael J. O'Brien
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Publication number: 20110273350Abstract: Methods, antennas and other embodiments associated with impedance matching an antenna feed slot. A slot antenna includes a planar metal sheet. A feed slot opening is formed in the metal sheet. The feed slot has a first end and a second end. A tapered opening is formed in the metal sheet. Adjacent sides of the tapered opening touch the first end of the feed slot. An impedance matching star shaped opening is formed in the metal. The impedance matching star shaped opening touches the second end of the feed slot.Type: ApplicationFiled: May 7, 2010Publication date: November 10, 2011Applicant: BAE Systems Information And Electronic Systems Integration Inc.Inventors: Matthew M. McQuaid, Michael J. O'Brien, Nicolas S. Peterson, Basil W. Thompson, Duane A. Beaulieu, Kari M. Karwedsky
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Patent number: 8025926Abstract: A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition includes a functionalized poly(phenylene ether) having at least one aliphatic unsaturated group and exhibiting an intrinsic viscosity in the range of about 0.06 to about 0.25 deciliter per gram, measured in chloroform at 25° C. The varnish composition further includes an unsaturated polyester resin or vinyl ester resin, a reactive liquid monomer, and a compatibilizing agent. When cured, the polymers and reactive liquid monomer form an electrically insulative thermoset.Type: GrantFiled: September 30, 2008Date of Patent: September 27, 2011Assignee: Sabic Innovative Plastics IP B.V.Inventors: Michael J. O'Brien, Patricia Chapman Irwin, Qiwei Lu
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Publication number: 20110070562Abstract: A dental prosthesis is made by first forming a model of a patient's dentition. A three dimensional digital data corresponding to the surfaces of the model is then created. Based on this data, a three dimensional digital data file is then created substantially corresponding to the dental prosthesis to be manufactured. The three dimensional digital data of the dental prosthesis to be manufactured is next transmitted to automated prototyping equipment, and using the automated prototyping equipment, a wax pattern of the dental prosthesis is manufactured based upon this three dimensional digital data of the dental prosthesis. Finally, using this wax pattern in the lost wax investment casting process, the dental prosthesis is made. Prior to investment casting, marginal edges of the wax pattern are adjusted manually.Type: ApplicationFiled: November 30, 2010Publication date: March 24, 2011Applicant: GeoDigm CorporationInventors: Michael J. O'BRIEN, Derrick G. Luksch
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Publication number: 20110064579Abstract: A system for actively controlling the span-wise rotational twist of a hollow beam along its longitudinal axis, including a hollow beam structure having a leading edge and a trailing edge region, the beam being split along its length, an actuator arranged between split surfaces of the beam, the actuator adapted to move the split surfaces in a longitudinal direction relative to each other, inducing a twist in the beam. In one embodiment, the actuator is a plurality of thermal expansion material blocks alternating with mechanical compression blocks, the thermal expansion material blocks being heated to cause expansion in the spanwise longitudinal direction. Other alternative actuators include a rotary actuators such as a threaded screw, piezoelectric or magnetostrictive blocks, a hydraulic actuator, or a pneumatic actuator. In an embodiment, the beam is an airfoil shape.Type: ApplicationFiled: September 18, 2008Publication date: March 17, 2011Inventors: James P. Thomas, Michael J. O'Brien, William R. Pogue, III
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Patent number: 7877160Abstract: A dental prosthesis is made by first forming a model of a patient's dentition. A three dimensional digital data corresponding to the surfaces of the model is then created. Based on this data, a three dimensional digital data file is then created substantially corresponding to the dental prosthesis to be manufactured. The three dimensional digital data of the dental prosthesis to be manufactured is next transmitted to automated prototyping equipment, and using the automated prototyping equipment, a wax pattern of the dental prosthesis is manufactured based upon this three dimensional digital data of the dental prosthesis. Finally, using this wax pattern in the lost wax investment casting process, the dental prosthesis is made. Prior to investment casting, marginal edges of the wax pattern are adjusted manually.Type: GrantFiled: October 31, 2008Date of Patent: January 25, 2011Assignee: GeoDigm CorporationInventors: Michael J. O'Brien, Derrick G. Luksch
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Publication number: 20100300841Abstract: A gravity conveyor assembly includes first and second track assemblies positioned parallel to each other. Each of the track assemblies includes a body, having a slot in a first surface. A track member includes a frictional engagement portion received and frictionally engaged within the slot. A track extending portion freely extends above the first surface of the body. The track extending portion is oriented at an angle with respect to an axis oriented transverse to a ground surface such that the track extending portion has a continuous slope with respect to the ground surface. A cassette supported on the first and second track members is adapted for gravity induced rolling motion by the continuous slope. Wheels mounted to opposing sides of the cassette each have a concave perimeter surface aligned for rolling contact with the track extending portion of the track assemblies.Type: ApplicationFiled: June 1, 2010Publication date: December 2, 2010Applicant: BLEICHERT FOERDERANLAGEN GMBHInventor: Michael J. O'Brien
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Publication number: 20100300840Abstract: A gravity conveyor assembly includes first and second track assemblies positioned parallel to each other. Each of the track assemblies includes a body, having a slot in a first surface. A track member includes a frictional engagement portion received and frictionally engaged within the slot. A track extending portion freely extends above the first surface of the body. The track extending portion is oriented at an angle with respect to an axis oriented transverse to a ground surface such that the track extending portion has a continuous slope with respect to the ground surface. A cassette supported on the first and second track members is adapted for gravity induced rolling motion by the continuous slope. Wheels mounted to opposed sides of the cassette each have a concave perimeter surface aligned for rolling contact with the track extending portion of the track assemblies.Type: ApplicationFiled: May 27, 2009Publication date: December 2, 2010Applicant: Bleichert, Inc.Inventor: Michael J. O'Brien
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Publication number: 20100119716Abstract: A process for preparing a redistributed poly(phenylene ether), comprising reacting a poly(phenylene ether) in a reactive diluent monomer with a polyhydric phenol in the presence of a redistribution catalyst to form a composition comprising a redistributed poly(phenylene ether) in the reactive monomer diluent. The redistributed poly(phenylene ether) exhibits an intrinsic viscosity in the range of about 0.06 deciliters per gram to about 0.25 deciliters per gram, measured in chloroform at 25° C. The redistributed poly(phenylene ether) can be functionalized and admixed with unsaturated resin such as an unsaturated polyester resin or vinyl ester resin to obtain a varnish composition that, when cured, can form an electrically insulative thermoset.Type: ApplicationFiled: November 10, 2008Publication date: May 13, 2010Inventors: Patricia Chapman Irwin, Qiwei Lu, Michael J. O'Brien
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Publication number: 20100083915Abstract: An electromechanical actuator includes a cylinder and piston for driving a load and defining a chamber in which is disposed a buffer gas, such as nitrogen, and a solid or water-based electrolyte, and electrodes for generating hydrogen and oxygen by electrolysis that mixes with the buffer gas serving to control the combustion pressure profile, and into which chamber, above the electrolyte, is inserted an igniter for combusting the hydrogen and oxygen for creating high pressures in the chamber to move the piston and create efficient mechanical work.Type: ApplicationFiled: October 8, 2008Publication date: April 8, 2010Inventors: Gary F. Hawkins, Thomas J. Curtiss, Eric W. Fournier, Michael J. O'Brien
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Publication number: 20100080892Abstract: A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition comprises a functionalized poly(phenylene ether), an unsaturated polyester, and/or a vinylester resin. The varnish composition further comprises a reactive liquid monomer and a block copolymer comprising a poly(olefin) block, or a poly(diolefin) block, and at least one terminal poly(alkenyl aromatic) block comprising repeat units derived from an alkenyl aromatic monomer. When cured, the polymers and reactive liquid monomer forms an electrically insulative thermoset that provides superior crack resistance.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Inventors: Michael J. O'Brien, Patricia Chapman Irwin, Qiwei Lu
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Publication number: 20090269488Abstract: A varnish composition for producing an electrically insulative thermoset coating is disclosed. The varnish composition includes a functionalized poly(phenylene ether) having at least one aliphatic unsaturated group and exhibiting an intrinsic viscosity in the range of about 0.06 to about 0.25 deciliter per gram, measured in chloroform at 25° C. The varnish composition further includes an unsaturated polyester resin or vinyl ester resin, a reactive liquid monomer, and a compatibilizing agent. When cured, the polymers and reactive liquid monomer form an electrically insulative thermoset.Type: ApplicationFiled: September 30, 2008Publication date: October 29, 2009Inventors: Michael J. O'Brien, Patricia Chapman Irwin, Qiwei Lu
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Patent number: 7565950Abstract: A sound suppression method includes using a passive noise suppression technology to destructively interfere with a sound wave propagating through a structure at portions of the structure that are positioned apart less than half of a wavelength of the sound wave.Type: GrantFiled: January 26, 2005Date of Patent: July 28, 2009Assignee: The Aerospace CorporationInventors: Gary F. Hawkins, Michael J. O'Brien
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Publication number: 20090087818Abstract: A dental prosthesis is made by first forming a model of a patient's dentition. A three dimensional digital data corresponding to the surfaces of the model is then created. Based on this data, a three dimensional digital data file is then created substantially corresponding to the dental prosthesis to be manufactured. The three dimensional digital data of the dental prosthesis to be manufactured is next transmitted to automated prototyping equipment, and using the automated prototyping equipment, a wax pattern of the dental prosthesis is manufactured based upon this three dimensional digital data of the dental prosthesis. Finally, using this wax pattern in the lost wax investment casting process, the dental prosthesis is made. Prior to investment casting, marginal edges of the wax pattern are adjusted manually.Type: ApplicationFiled: October 31, 2008Publication date: April 2, 2009Applicant: GeoDigm CorporationInventors: Michael J. O'BRIEN, Derrick G. Luksch