Patents by Inventor Daniel Cregg
Daniel Cregg 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: 9546554Abstract: A turbine rotor blade for a turbine section of an engine is provided. The rotor blade includes a platform and an airfoil extending from the platform into a mainstream gas path of the turbine section. The airfoil includes a pressure side wall, a suction side wall joined to the pressure side wall at a leading edge and a trailing edge, and a tip cap extending between the suction side wall and the pressure side wall. The rotor blade further includes an internal cooling circuit having a tip cap passage configured to deliver cooling air to the tip cap and a flow accelerator positioned within the tip cap passage of the internal cooling circuit.Type: GrantFiled: September 27, 2012Date of Patent: January 17, 2017Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Daniel Cregg Crites, Steve Halfmann, Mark C. Morris, Ardeshir Riahi
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Patent number: 9394798Abstract: An airfoil for a gas turbine engine is provided. The airfoil includes a body with a leading edge, a trailing edge, a first side wall extending between the leading edge and the trailing edge, and a second side wall extending between the leading edge and the trailing edge. The body defines an interior cavity. The airfoil includes an interior wall disposed within the interior cavity of the body and extending between the first wall and the second wall to define a supply chamber and a leading edge chamber. The interior wall defines a cooling hole with a base portion and a locally extended portion to direct cooling air from the supply chamber to the leading edge chamber such that the cooling air impinges upon the leading edge.Type: GrantFiled: April 2, 2013Date of Patent: July 19, 2016Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Daniel Cregg Crites, Mark C. Morris, Lorenzo Crosatti, Ardeshir Riahi
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Patent number: 9228440Abstract: Turbine blade airfoils, showerhead film cooling systems thereof, and methods for cooling the turbine blade airfoils using the same are provided. The airfoil has a leading edge and a trailing edge, a pressure sidewall and a suction sidewall both extending between the leading and the trailing edges, and an internal cavity for supplying cooling air. A showerhead of film cooling holes is connected to the internal cavity. Each film cooling hole has an inlet connected to the internal cavity and an outlet opening onto an external wall surface at the leading edge of the airfoil. A plurality of surface connectors is formed in the external wall surface. Each surface connector of the plurality of surface connectors interconnects the outlets of at least one selected pair of the film cooling holes.Type: GrantFiled: December 3, 2012Date of Patent: January 5, 2016Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Vighneswara Rao Kollati, Balamurugan Srinivasan, Jong Liu, Daniel Cregg Crites, Luis Tapia, Malak Fouad Malak, Rajiv Rana
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Patent number: 9200523Abstract: A turbine blade includes a blade portion, the blade portion comprising a tip outer wall and a trailing edge, an internal cooling circuit, the internal cooling circuit being configured for directing cooling air within the blade portion, and a tip trailing edge slot positioned adjacent to the tip outer wall and the trailing edge, the tip trailing edge slot being fluidly connected to the internal cooling circuit. The tip outer wall is recessed at the tip trailing edge slot such that the tip outer wall is not provided over the trailing edge slot, thereby allowing cooling air to flow from the cooling circuit, into the trailing edge slot, and radially over the tip outer wall.Type: GrantFiled: March 14, 2012Date of Patent: December 1, 2015Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Daniel Cregg Crites, Mark C. Morris, Steve Halfmann
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Patent number: 8882461Abstract: An airfoil is provided for a gas turbine engine. The airfoil includes a pressure side wall; a suction side wall; an internal cavity defined between the pressure side wall and the suction side wall for receiving cooling air; and a cooling arrangement within the internal cavity. The cooling arrangement includes a first land extending to a first downstream end aft of the pressure side trailing edge, a second land extending to a second downstream end aft of the pressure side trailing edge, the first land and second land defining a first slot, a first divider positioned radially in between the first land and the second land to define a first passageway of the first slot and a second passageway of the first slot, a first pin positioned upstream and indexed to the first passageway, and a second pin positioned upstream and indexed to the second passageway.Type: GrantFiled: September 12, 2011Date of Patent: November 11, 2014Assignee: Honeywell International Inc.Inventors: Mark C. Morris, Jon Kettinger, Yong-Qing Yang, Daniel Cregg Crites
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Publication number: 20140154096Abstract: Turbine blade airfoils, showerhead film cooling systems thereof, and methods for cooling the turbine blade airfoils using the same are provided. The airfoil has a leading edge and a trailing edge, a pressure sidewall and a suction sidewall both extending between the leading and the trailing edges, and an internal cavity for supplying cooling air. A showerhead of film cooling holes is connected to the internal cavity. Each film cooling hole has an inlet connected to the internal cavity and an outlet opening onto an external wall surface at the leading edge of the airfoil. A plurality of surface connectors is formed in the external wall surface. Each surface connector of the plurality of surface connectors interconnects the outlets of at least one selected pair of the film cooling holes.Type: ApplicationFiled: December 3, 2012Publication date: June 5, 2014Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Vighneswara Rao Kollati, Balamurugan Srinivasan, Jong Liu, Daniel Cregg Crites, Luis Tapia, Malak Fouad Malak, Rajiv Rana
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Publication number: 20140083116Abstract: A turbine rotor blade for a turbine section of an engine is provided. The rotor blade includes a platform and an airfoil extending from the platform into a mainstream gas path of the turbine section. The airfoil includes a pressure side wall, a suction side wall joined to the pressure side wall at a leading edge and a trailing edge, and a tip cap extending between the suction side wall and the pressure side wall. The rotor blade further includes an internal cooling circuit having a tip cap passage configured to deliver cooling air to the tip cap and a flow accelerator positioned within the tip cap passage of the internal cooling circuit.Type: ApplicationFiled: September 27, 2012Publication date: March 27, 2014Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Daniel Cregg Crites, Steve Halfmann, Mark C. Morris, Ardeshir Riahi
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Patent number: 8628293Abstract: An engine component includes a body having an interior surface and an exterior surface; a cooling hole formed in the body and extending from the interior surface to the exterior surface; and a concave trench extending from the cooling hole at the exterior surface of the body in a downstream direction.Type: GrantFiled: June 17, 2010Date of Patent: January 14, 2014Assignee: Honeywell International Inc.Inventors: Dhinagaran Ramachandran, Gopal Samy Muthiah, Jyothishkumar Venkataramanan, Balamurugan Srinivasan, Jong Liu, Luis Tapia, Daniel Cregg Crites, Malak Fouad Malak
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Publication number: 20130315710Abstract: An engine component includes a body having an interior surface and an exterior surface; a cooling hole formed in the body and extending from the interior surface; and a nonconcave trench extending from the cooling hole to the exterior surface of the body in a downstream direction such that cooling air flow from within the body flow through the cooling hole, through the trench, and onto the exterior surface.Type: ApplicationFiled: May 22, 2012Publication date: November 28, 2013Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Vighneswara Rao Kollati, Balamurugan Srinivasan, Jyothishkumar Venkataramanan, Sujatha Guntu, Jong Liu, Daniel Cregg Crites, Luis Tapia, Malak Fouad Malak
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Publication number: 20130243606Abstract: A turbine blade includes a blade portion, the blade portion comprising a tip outer wall and a trailing edge, an internal cooling circuit, the internal cooling circuit being configured for directing cooling air within the blade portion, and a tip trailing edge slot positioned adjacent to the tip outer wall and the trailing edge, the tip trailing edge slot being fluidly connected to the internal cooling circuit. The tip outer wall is recessed at the tip trailing edge slot such that the tip outer wall is not provided over the trailing edge slot, thereby allowing cooling air to flow from the cooling circuit, into the trailing edge slot, and radially over the tip outer wall.Type: ApplicationFiled: March 14, 2012Publication date: September 19, 2013Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Daniel Cregg Crites, Mark C. Morris, Steve Halfmann
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Publication number: 20130064639Abstract: An airfoil is provided for a gas turbine engine. The airfoil includes a pressure side wall; a suction side wall; an internal cavity defined between the pressure side wall and the suction side wall for receiving cooling air; and a cooling arrangement within the internal cavity. The cooling arrangement includes a first land extending to a first downstream end aft of the pressure side trailing edge, a second land extending to a second downstream end aft of the pressure side trailing edge, the first land and second land defining a first slot, a first divider positioned radially in between the first land and the second land to define a first passageway of the first slot and a second passageway of the first slot, a first pin positioned upstream and indexed to the first passageway, and a second pin positioned upstream and indexed to the second passageway.Type: ApplicationFiled: September 12, 2011Publication date: March 14, 2013Applicant: Honeywell International Inc.Inventors: Mark C. Morris, Jon Kettinger, Yong-Qing Yang, Daniel Cregg Crites
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Publication number: 20120148406Abstract: A turbine rotor disk is provided. The turbine rotor disk includes a hub, a ring attached to the hub, the ring including a plurality of posts extending radially outwardly and disposed around a circumference of the ring, each post including a first radially-extending face, a second radially-extending face, and a blade attachment surface extending axially between the first and second radially-extending faces, a main cooling air feed channel formed in each post and extending from the first radially-extending face toward the second radially-extending face, and a plurality of ancillary jet openings formed in each post and extending from the main cooling air feed channel to the blade attachment surface.Type: ApplicationFiled: December 13, 2010Publication date: June 14, 2012Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Steve Halfmann, Daniel Cregg Crites, Malak Fouad Malak, Mark C. Morris, Ardeshir Riahi, Brandan Wakefield
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Publication number: 20110311369Abstract: An engine component includes a body having an interior surface and an exterior surface; a cooling hole formed in the body and extending from the interior surface to the exterior surface; and a concave trench extending from the cooling hole at the exterior surface of the body in a downstream direction.Type: ApplicationFiled: June 17, 2010Publication date: December 22, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Dhinagaran Ramachandran, Gopal Samy Muthiah, Jyothishkumar Venkataramanan, Balamurugan Srinivasan, Jong Liu, Luis Tapia, Daniel Cregg Crites, Malak Fouad Malak
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Patent number: 8081649Abstract: Low-cost intelligent control and communication devices are arranged to communicate with one another over one or more shared physical media, such as a powerline or a radio frequency band. No network controller is needed, because any device can act as a master, slave, or repeater. Adding more devices makes the system more robust, by virtue of a simple protocol for communication retransmissions and retries.Type: GrantFiled: January 29, 2008Date of Patent: December 20, 2011Inventors: Daniel Cregg, Marcus Escobosa, Ronald Walter, Donald Bartley
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Patent number: 7345998Abstract: Low-cost intelligent control and communication devices are arranged to communicate with one another over one or more shared physical media, such as a powerline or a radio frequency band. No network controller is needed, because any device can act as a master, slave, or repeater. Adding more devices makes the system more robust, by virtue of a simple protocol for communication retransmissions and retries.Type: GrantFiled: December 15, 2004Date of Patent: March 18, 2008Assignee: Smart Labs, Inc.Inventors: Daniel Cregg, Marcus Escobosa, Ronald Walter, Donald Bartley
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Publication number: 20060210278Abstract: Tokenized commands originating in an infrared (IR) remote control are sent over a home automation network using low-cost radio-frequency (RF) and/or powerline (PL) communications to enables operation of distant IR-controllable devices not within view of the IR beam from the remote control, as well as operation of other devices that are not IR-controllable. Using IR or RF, the remote control sends only a few bytes of tokenized information designating the specific function to be controlled. An IR or RF receiver optionally retransmits the tokens over another network, such as the powerline. “IR Blaster” devices receive the tokens via RF or another network, and apply them to an IR engine that generates an IR pulse stream identical to that of the original remote control. Non-IR devices receive the tokens via RF or another network and interpret them as specific control commands.Type: ApplicationFiled: March 21, 2005Publication date: September 21, 2006Inventors: Daniel Cregg, Paul Darbee
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Publication number: 20060126617Abstract: Low-cost intelligent control and communication devices are arranged to communicate with one another over one or more shared physical media, such as a powerline or a radio frequency band. No network controller is needed, because any device can act as a master, slave, or repeater. Adding more devices makes the system more robust, by virtue of a simple protocol for communication retransmissions and retries.Type: ApplicationFiled: December 15, 2004Publication date: June 15, 2006Inventors: Daniel Cregg, Marcus Escobosa, Ronald Walter, Donald Bartley