Patents by Inventor Nathan G. Woodard

Nathan G. Woodard 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: 8243375
    Abstract: An optical assembly includes a light path and at least one optic to be positioned in the path. A support arrangement supports the optic having a foot arrangement including at least one foot that receives a direct manipulation with the foot slidingly engaged against a support surface to move the optic relative to the light path. Movement of the foot may move the optic along a predetermined path. The foot defines a footprint for engaging the support surface and receives the direct manipulation in a way which changes the footprint on the support surface to move the optic responsive to changes in the footprint. A movement arrangement may selectively bias the foot against the support surface during a movement mode, intended to permit movement of the foot against the support surface, and in a locked mode, intended to lock the foot against the support surface.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: August 14, 2012
    Assignee: Emcore Corporation
    Inventors: Nathan G. Woodard, Eric C. Johnson, Jon F. Nielsen, Joseph R. Demers, Chien-Chung Chen
  • Publication number: 20100118421
    Abstract: An optical assembly includes a light path and at least one optic to be positioned in the path. A support arrangement supports the optic having a foot arrangement including at least one foot that receives a direct manipulation with the foot slidingly engaged against a support surface to move the optic relative to the light path. Movement of the foot may move the optic along a predetermined path. The foot defines a footprint for engaging the support surface and receives the direct manipulation in a way which changes the footprint on the support surface to move the optic responsive to changes in the footprint. A movement arrangement may selectively bias the foot against the support surface during a movement mode, intended to permit movement of the foot against the support surface, and in a locked mode, intended to lock the foot against the support surface.
    Type: Application
    Filed: January 18, 2010
    Publication date: May 13, 2010
    Applicant: EMCORE CORPORATION
    Inventors: Nathan G. Woodard, Eric C. Johnson, Jon F. Nielsen, Joseph R. Demers, Chien-Chung Chen
  • Patent number: 7672068
    Abstract: An optical assembly includes a light path and at least one optic to be positioned in the path. A support arrangement supports the optic having a foot arrangement including at least one foot that receives a direct manipulation with the foot slidingly engaged against a support surface to move the optic relative to the light path. Movement of the foot may move the optic along a predetermined path. The foot defines a footprint for engaging the support surface and receives the direct manipulation in a way which changes the footprint on the support surface to move the optic responsive to changes in the footprint. A movement arrangement may selectively bias the foot against the support surface during a movement mode, intended to permit movement of the foot against the support surface, and in a locked mode, intended to lock the foot against the support surface.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: March 2, 2010
    Assignee: Emcore Corporation
    Inventors: Nathan G. Woodard, Eric C. Johnson, Jon F. Nielsen, Joseph R. Demers, Chien-Chung Chen
  • Publication number: 20090002851
    Abstract: An optical assembly includes a light path and at least one optic to be positioned in the path. A support arrangement supports the optic having a foot arrangement including at least one foot that receives a direct manipulation with the foot slidingly engaged against a support surface to move the optic relative to the light path. Movement of the foot may move the optic along a predetermined path. The foot defines a footprint for engaging the support surface and receives the direct manipulation in a way which changes the footprint on the support surface to move the optic responsive to changes in the footprint. A movement arrangement may selectively bias the foot against the support surface during a movement mode, intended to permit movement of the foot against the support surface, and in a locked mode, intended to lock the foot against the support surface.
    Type: Application
    Filed: August 26, 2008
    Publication date: January 1, 2009
    Inventors: Nathan G. Woodard, Eric C. Johnson, Jon F. Nielsen, Joseph R. Demers, Chien-Chung Chen
  • Patent number: 7430081
    Abstract: An optical assembly includes a light path and at least one optic to be positioned in the path. A support arrangement supports the optic having a foot arrangement including at least one foot that receives a direct manipulation with the foot slidingly engaged against a support surface to move the optic relative to the light path. Movement of the foot may move the optic along a predetermined path. The foot defines a footprint for engaging the support surface and receives the direct manipulation in a way which changes the footprint on the support surface to move the optic responsive to changes in the footprint. A movement arrangement may selectively bias the foot against the support surface during a movement mode, intended to permit movement of the foot against the support surface, and in a locked mode, intended to lock the foot against the support surface.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: September 30, 2008
    Assignee: Emcore Corporation
    Inventors: Nathan G. Woodard, Eric C. Johnson, Jon F. Nielsen, Joseph R. Demers, Chien-Chung Chen
  • Patent number: 7075028
    Abstract: Attaching an attachment surface of an electrically conductive workpiece to an electrically conductive support surface is described. In one aspect, a biasing force is distributed at least partially around a weld region of the workpiece to urge the attachment surface of the workpiece against the support surface in a way which at least resists welding induced movement of the workpiece relative to the support arrangement. An electrode arrangement, having an electrode tip, contacts the workpiece to provide for substantially compliant movement of the electrode tip against the weld region in directions that are parallel to the support surface. In another aspect, a combined manipulation/welding arrangement is supported for controlled movement with a free end configured for engaging the workpiece to bias the workpiece against the support surface to manipulate the workpiece against the surface and to conduct an electrical current, while holding the workpiece, for welding to the support surface.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: July 11, 2006
    Assignee: Emcore Corporation
    Inventors: Joseph R. Demers, Nathan G. Woodard, Eric C. Johnson, Chien-Chung Chen, Ronald T. Logan, Jr.
  • Patent number: 6959756
    Abstract: Featured is a heat transferring device being configured and arranged so that at least some of the heat energy being generated by a heat producing device, such as the a bearing assembly of a flywheel energy storage system, is communicated directly from the locus of the device directly to a heat sink structure remote from the locus of the device. The heat-transferring device includes one or more flexible thermally conductive members, one end of each being thermally coupled to the heat generating device and the other end of each being thermally coupled to the heat sink. The flexible member also is configured and arranged so as to allow relative motion between the heat generating device and the heat sink in or about one or more directions or axes. The heat-transferring device further includes first and second conductive members that are each configured and arranged to thermally couple each flexible member end to one of the heat producing device and the heat sink.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: November 1, 2005
    Assignee: Beacon Power Corporation
    Inventors: Nathan G. Woodard, Omar M. Kabir, Jeremiah I. Rathbun
  • Patent number: 6884039
    Abstract: A flywheel energy storage system, including a plurality of pumps arranged in parallel for simultaneously drawing-off and absorbing substantially all of the gases that evolve from a flywheel assembly during high-speed operation, is disclosed. The plurality of pumps includes at least one pump for pumping mainly water vapor; and, at least one pump for pumping mainly active gases. The at least one pump for pumping mainly water vapor plurality of pumps is disposed in a gas storage chamber that is separate from the main housing of the flywheel system. The at least one pump for pumping mainly active gases is disposed in a container external to the main housing and fluidly coupled to the gas storage chamber. A drag pump assists the plurality of pumps in the gas storage chamber by pumping the evolved gases from the main housing to the gas storage chamber.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: April 26, 2005
    Assignee: Beacon Power Corporation
    Inventors: Nathan G. Woodard, Jeremiah I. Rathbun, Paul E. Dresens
  • Publication number: 20030196992
    Abstract: Attaching an attachment surface of an electrically conductive workpiece to an electrically conductive support surface is described. In one aspect, a biasing force is distributed at least partially around a weld region of the workpiece to urge the attachment surface of the workpiece against the support surface in a way which at least resists welding induced movement of the workpiece relative to the support arrangement. An electrode arrangement, having an electrode tip, contacts the workpiece to provide for substantially compliant movement of the electrode tip against the weld region in directions that are parallel to the support surface. In another aspect, a combined manipulation/welding arrangement is supported for controlled movement with a free end configured for engaging the workpiece to bias the workpiece against the support surface to manipulate the workpiece against the surface and to conduct an electrical current, while holding the workpiece, for welding to the support surface.
    Type: Application
    Filed: March 20, 2003
    Publication date: October 23, 2003
    Inventors: Joseph R. Demers, Nathan G. Woodard, Eric C. Johnson, Chien-Chung Chen, Ronald T. Logan
  • Publication number: 20030175126
    Abstract: A flywheel energy storage system, including a plurality of pumps arranged in parallel for simultaneously drawing-off and absorbing substantially all of the gases that evolve from a flywheel assembly during high-speed operation, is disclosed. The plurality of pumps includes at least one pump for pumping mainly water vapor; and, at least one pump for pumping mainly active gases. The at least one pump for pumping mainly water vapor plurality of pumps is disposed in a gas storage chamber that is separate from the main housing of the flywheel system. The at least one pump for pumping mainly active gases is disposed in a container external to the main housing and fluidly coupled to the gas storage chamber. A drag pump assists the plurality of pumps in the gas storage chamber by pumping the evolved gases from the main housing to the gas storage chamber.
    Type: Application
    Filed: December 30, 2002
    Publication date: September 18, 2003
    Inventors: Nathan G. Woodard, Jeremiah I. Rathbun, Paul E. Dresens
  • Publication number: 20030161055
    Abstract: An optical assembly includes a light path and at least one optic to be positioned in the path. A support arrangement supports the optic having a foot arrangement including at least one foot that receives a direct manipulation with the foot slidingly engaged against a support surface to move the optic relative to the light path. Movement of the foot may move the optic along a predetermined path. The foot defines a footprint for engaging the support surface and receives the direct manipulation in a way which changes the footprint on the support surface to move the optic responsive to changes in the footprint. A movement arrangement may selectively bias the foot against the support surface during a movement mode, intended to permit movement of the foot against the support surface, and in a locked mode, intended to lock the foot against the support surface.
    Type: Application
    Filed: May 17, 2002
    Publication date: August 28, 2003
    Inventors: Nathan G. Woodard, Eric C. Johnson, Jon F. Nielsen, Joseph R. Demers, Chien-Chung Chen
  • Patent number: 6590691
    Abstract: The present invention discloses high-speed, single-drive and dual-drive external optical modulation devices that reduce the voltage and power required to amplify and modulate electrical signals onto an optical carrier. Two primary components of an optical transmitter, namely, the modulator and driver, are integrated, and preferably hybridly integrated, in a single package, thereby eliminating many of the cable connector interfaces that add loss, complexity and cost to the system. Further, integration frees the devices from the standardized impedance (i.e. 50 ohm) constraints that reduce performance, thereby enabling the design of optimized, low voltage, hybridly integrated modulation devices.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: July 8, 2003
    Assignee: Phasebridge, Inc.
    Inventors: Amit S. Nagra, Nathan G. Woodard, Ronald T. Logan, Jr.
  • Publication number: 20030029600
    Abstract: Featured is a heat transferring device being configured and arranged so that at least some of the heat energy being generated by a heat producing device, such as the a bearing assembly of a flywheel energy storage system, is communicated directly from the locus of the device directly to a heat sink structure remote from the locus of the device. The heat-transferring device includes one or more flexible thermally conductive members, one end of each being thermally coupled to the heat generating device and the other end of each being thermally coupled to the heat sink. The flexible member also is configured and arranged so as to allow relative motion between the heat generating device and the heat sink in or about one or more directions or axes. The heat-transferring device further includes first and second conductive members that are each configured and arranged to thermally couple each flexible member end to one of the heat producing device and the heat sink.
    Type: Application
    Filed: August 7, 2001
    Publication date: February 13, 2003
    Applicant: Beacon Power Corporation
    Inventors: Nathan G. Woodard, Omar M. Kabir, Jeremiah I. Rathbun
  • Patent number: 6347925
    Abstract: A flywheel energy storage system, including a plurality of pumps arranged in parallel for simultaneously drawing-off and absorbing substantially all of the gases that evolve from a flywheel assembly during high-speed operation, is disclosed. The plurality of pumps includes at least one pump, e.g., a water sorbent, for pumping mainly water vapor; and, at least one pump, e.g., a getter pump, for pumping mainly active gases. The plurality of pumps is disposed in a gas storage chamber that is separate from the main housing of the flywheel system. A drag pump assists the plurality of pumps in the gas storage chamber by pumping the evolved gases from the main housing to the gas storage chamber for subsequent absorption by the plurality of pumps.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: February 19, 2002
    Assignee: Beacon Power Corporation
    Inventors: Nathan G. Woodard, Jeremiah I. Rathbun