Patents by Inventor Raghavendran Mahalingam

Raghavendran Mahalingam 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).

  • Publication number: 20150122457
    Abstract: A method is provided for operating a thermal management system which includes providing a set of synthetic jet actuators A={a1, . . . , an} (309, 311, 313), wherein n?3, and wherein each member of A has a diaphragm which oscillates along a principle axis. The members of set A are arranged and operated such that they have corresponding forces F1, . . . , Fn at any given time during their operation, wherein any force Fk ? {F1, . . . , Fn} has vector components along mutually orthogonal axes x, y and z of Fkx, Fky, and Fkz, wherein at least one of the sets Sx={|F1x|, . . . , |Fnx|}, Sy={|F1y|, . . . , |Fny|} and Sz={|F1z|, . . . , |Fnz|} has more than one member, and wherein the sum TF=?i=1n Fi is essentially zero.
    Type: Application
    Filed: March 1, 2014
    Publication date: May 7, 2015
    Applicant: NUVENTIX, INC.
    Inventors: John Stanley Booth, Markus Schwickert, Raghavendran Mahalingam
  • Patent number: 9016903
    Abstract: An illumination device 1701 is provided which includes a light emitting portion 1703; an LED 1715 disposed within said light emitting portion; a threaded connector module 1705 adapted to rotatingly engage said illumination device to a source of electricity; a heat sink 1759 disposed between said light emitting portion and said connector module; and a synthetic jet ejector 1709 disposed between said light emitting portion and said connector module.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: April 28, 2015
    Assignee: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Samuel Neil Heffington, Stephen P. Darbin, Daniel N. Grimm
  • Publication number: 20150030477
    Abstract: A synthetic jet ejector (201) is provided which includes a chassis (203); first (205) and second (207) opposing synthetic jet actuators mounted in the chassis; and a controller (209) which controls the first and second synthetic jet actuators and which is in electrical contact with the first and second synthetic jet actuators by way of flexible circuitry (211, 213).
    Type: Application
    Filed: September 19, 2014
    Publication date: January 29, 2015
    Applicant: NUVENTIX, INC.
    Inventors: Daniel N. Grimm, Andrew Poynot, Randall P. Williams, Stephen P. Darbin, Lee M. Jones, Raghavendran Mahalingam
  • Publication number: 20140319239
    Abstract: A device is provided which includes (a) a thermally conductive base having first and second major surfaces; (b) a die attached to said first major surface of said base; (c) a heat pipe having a first end which is attached to said second major surface of said base; (d) a plurality of heat fins attached to a second end of said heat pipe; and (e) at least one synthetic jet ejector disposed between said base and said plurality of heat fins.
    Type: Application
    Filed: February 13, 2014
    Publication date: October 30, 2014
    Applicant: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Randall P. Williams, Stephen P. Darbin, Brandon Lee Noska, Lee M. Jones
  • Patent number: 8845138
    Abstract: A light source (101) is provided which comprises (a) a housing element (107); (b) a heat sink (109); (c) a first flow channel element (111) which, alone or in combination with said housing element, creates (i) a first set of flow paths (221) for the flow of fluid in a first direction through the light source, and (ii) a second set of flow paths (223) for the flow of fluid in a second direction through the light source; (d) a set of synthetic jet actuators (143, 145) having at least one member and being in fluidic communication with said first set of flow paths; and (e) a set of LEDs (113) containing at least one member and being in thermal contact with said heat sink.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: September 30, 2014
    Assignee: Nuventix, Inc.
    Inventors: John Stanley Booth, Raghavendran Mahalingam, Lee M. Jones, Daniel N. Grimm, Paul Pergande
  • Publication number: 20140270325
    Abstract: A method for making a diaphragm is provided. The method includes providing a first ring (305) having a first diameter and a second ring (307) having a second diameter which is greater than said first diameter, wherein at least one of said first and second rings comprises a first elastomeric material; and overmolding the first and second rings with a second material (303) which is distinct from said first material, thereby forming a diaphragm (301).
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: NUVENTIX, INC.
    Inventors: Andrew Poynot, Raghavendran Mahalingam, Stephen P. Darbin, Lee M. Jones, Markus Schwickert, Danny J. Allred, Bouraoui Ben Makhlouf
  • Publication number: 20140268545
    Abstract: A synthetic jet ejector (501) is provided which includes a diaphragm (503) and a chassis (505). The chassis has first and second major surfaces which are equipped with a set of interlocking features (509) such that a first instance of the synthetic jet ejector releasably attaches to a second instance of the synthetic jet ejector by way of the interlocking features.
    Type: Application
    Filed: February 20, 2014
    Publication date: September 18, 2014
    Applicant: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Andrew Poynot, Stephen P. Darbin
  • Publication number: 20140252119
    Abstract: A synthetic jet ejector (201) is provided which includes a housing (203). A blade (205) is disposed in the housing which has a first fixed end (207) and a second movable end (209), and which is driven by an actuator to trace out a first volume as its free end moves between a first apex and a second apex. The housing has a first portion which is spaced apart from, and complimentary in shape to, at least a portion of the first volume. The spacing (217) between this volume and the first portion is sufficiently small to form a viscous seal around the periphery of the actuator.
    Type: Application
    Filed: February 28, 2014
    Publication date: September 11, 2014
    Applicant: Nuventix, Inc.
    Inventors: Jim Balthazar, Raghavendran Mahalingam
  • Publication number: 20140252120
    Abstract: A synthetic jet ejector (201) is provided which includes a housing assembly (239, 241) which is equipped with a first plurality of openings (203, 207) and a second plurality of openings (205, 209), and a diaphragm assembly disposed within the housing assembly. The diaphragm assembly includes first (229) and second (243) armatures, a coil (235) disposed between the first and second armatures, first (221) and second (255) end caps, a first diaphragm (223) disposed between the first end cap and the first armature, and a second diaphragm (249) disposed between the second end cap and the second armature. The first and second diaphragms contain a first set of keying features (273) which keys them to the housing assembly. The synthetic jet ejector emits a first plurality of synthetic jets out of the first plurality of openings, and emits a second plurality of synthetic jets out of the second plurality of openings.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 11, 2014
    Applicant: NUVENTIX, INC.
    Inventors: Timothy S. Lucas, Stephen P. Darbin, Raghavendran Mahalingam, Andrew Poynot, Daniel N. Grimm, Randall P. Williams
  • Patent number: 8777456
    Abstract: An illumination device (b1-01) is provided which comprises a housing (b1-03) equipped with an aperture (b1-37), first (b1-33) and second (b1-35) diaphragms disposed in said housing and in fluidic communication with said aperture, and an LED (b1-15) disposed between said first and second diaphragms.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: July 15, 2014
    Assignee: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Samuel N. Heffington, Stephen P. Darbin, Daniel N. Grimm, Brandon Lee Noska
  • Patent number: 8770765
    Abstract: A thermal management device (401) is provided which comprises a synthetic jet actuator (403) and a heat sink (405) comprising a fin (407). The fin has at least one interior channel (409) defined therein which has first and second openings that are in fluidic communication with each other. The synthetic jet actuator is adapted to direct a synthetic jet into said channel.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: July 8, 2014
    Assignee: Nuventix, Inc.
    Inventors: Lee M. Jones, Samuel N. Heffington, Raghavendran Mahalingam
  • Patent number: 8672648
    Abstract: A synthetic jet ejector (101) is provided herein which comprises a diaphragm (119), a first voice coil (121) disposed on a first side of the diaphragm, and a second voice coil (123) disposed on a second side of the diaphragm.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: March 18, 2014
    Assignee: Nuventix, Inc.
    Inventors: Ari Glezer, Robert G. Diamond, Raghavendran Mahalingam, Samuel Neil Heffington, Daniel N. Grimm, Markus Schwickert
  • Publication number: 20140029272
    Abstract: An illumination device 1701 is provided which includes a light emitting portion 1703; an LED 1715 disposed within said light emitting portion; a threaded connector module 1705 adapted to rotatingly engage said illumination device to a source of electricity; a heat sink 1759 disposed between said light emitting portion and said connector module; and a synthetic jet ejector 1709 disposed between said light emitting portion and said connector module.
    Type: Application
    Filed: August 19, 2013
    Publication date: January 30, 2014
    Applicant: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Samuel N. Heffington, Stephen P. Darbin, Daniel N. Grimm
  • Patent number: 8579476
    Abstract: An illumination device (b1-01) is provided which comprises a housing (b1-03) equipped with an aperture (b1-37), first (b1-33) and second (b1-35) diaphragms disposed in said housing and in fluidic communication with said aperture, and an LED (b1-15) disposed between said first and second diaphragms.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: November 12, 2013
    Assignee: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Samuel N. Heffington, Stephen P. Darbin, Daniel N. Grimm
  • Publication number: 20130243030
    Abstract: A computing device is provided which comprises (a) a chassis having an array of printed circuit boards (PCBs) disposed therein, wherein said chassis has a first wall with a first opening therein, and a second wall with a second opening therein, wherein each PCB is equipped with a microprocessor and a heat sink, and wherein each heat sink comprises a plurality of heat fins that define a plurality of longitudinal channels; (b) a fan which creates a fluidic flow that enters through said first opening and exits through said second opening, said fluidic flow being essentially parallel the longitudinal axes of said plurality of longitudinal channels; and (c) a synthetic jet ejector which directs at least one synthetic jet through at least one of said plurality of channels.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 19, 2013
    Applicant: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Lee M. Jones, Samuel N. Heffington, Stephen P. Darbin, Markus Schwickert
  • Publication number: 20130239589
    Abstract: A device (301) is provided which includes a Peltier device (303); a heat sink (305) in thermal contact with the Peltier device; and a synthetic jet ejector (307, 309) which directs a synthetic jet (319, 321) onto or adjacent to a surface of the heat sink.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 19, 2013
    Applicant: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Brandon Lee Noska
  • Patent number: 8430644
    Abstract: A method for constructing a thermal management system is provided herein. In accordance with the method, a fan (405) is provided which is adapted to provide a global flow of fluid through the device. A synthetic jet ejector (409) is also provided which is adapted to augment the global flow of fluid over the surfaces of a heat sink (403). The ratio of the flow per unit time of the synthetic jet ejector to the flow per unit time of the fan is selected so as to achieve a desired level of heat dissipation.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: April 30, 2013
    Assignee: Nuventix, Inc.
    Inventors: Raghavendran Mahalingam, Samuel N. Heffington, Ari Glezer, Ronald Lutz
  • Publication number: 20130083520
    Abstract: A light source (101) is provided which comprises (a) a housing element (107); (b) a heat sink (109); (c) a first flow channel element (111) which, alone or in combination with said housing element, creates (i) a first set of flow paths (221) for the flow of fluid in a first direction through the light source, and (ii) a second set of flow paths (223) for the flow of fluid in a second direction through the light source; (d) a set of synthetic jet actuators (143, 145) having at least one member and being in fluidic communication with said first set of flow paths; and (e) a set of LEDs (113) containing at least one member and being in thermal contact with said heat sink.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 4, 2013
    Inventors: John Stanley Booth, Raghavendran Mahalingam, Lee M. Jones, Daniel N. Grimm, Paul Pergande
  • Publication number: 20130068427
    Abstract: A thermal management system is provided which comprises (a) a synthetic jet actuator; and (b) a frame having at least one element therein which pressingly engages said synthetic jet actuator.
    Type: Application
    Filed: May 17, 2012
    Publication date: March 21, 2013
    Inventors: Randall P. Williams, Lee M. Jones, Andrew Poynot, John Stanley Booth, Brandon Lee Noska, Raghavendran Mahalingam, Markus Schwickert, Robert G. Diamond, Stephen P. Darbin, Daniel N. Grimm, Donald G. Doss, Elise Hime, Samuel N. Heffington, Robert T. Reichenbach, James Kelly, Matthew B. Ernst, Rick Ball
  • Patent number: 8388142
    Abstract: A thermal management device (401) is provided which comprises a synthetic jet actuator (403) and a heat sink (405) comprising a fin (407). The fin has at least one interior channel (409) defined therein which has first and second openings that are in fluidic communication with each other. The synthetic jet actuator is adapted to direct a synthetic jet into said channel.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: March 5, 2013
    Assignee: Nuventix, Inc.
    Inventors: Lee M. Jones, Samuel N. Heffington, Raghavendran Mahalingam