Patents by Inventor Steven R. Hall

Steven R. Hall 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: 20130020903
    Abstract: The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain.
    Type: Application
    Filed: June 22, 2012
    Publication date: January 24, 2013
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Steven R. Hall, Yukinori Koyama, Kyungyeol Song, Timothy E. Chin, Urs Rhyner, Dimitrios Sapnaras, Fernando Tubilla
  • Patent number: 8310130
    Abstract: The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: November 13, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Steven R. Hall, Yukinori Koyama, Kyungyeol Song, Timothy E. Chin, Urs Rhyner, Dimitrios Sapnaras, Fernando Tubilla
  • Publication number: 20120025671
    Abstract: The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain.
    Type: Application
    Filed: March 4, 2011
    Publication date: February 2, 2012
    Applicant: Massachusetts Institute Of Technology
    Inventors: Yet-Ming Chiang, Steven R. Hall, Yukinori Koyama, Kyungyeol Song, Timothy E. Chin, Urs Rhyner, Dimitrios Sapnaras, Fernando Tubilla
  • Patent number: 7994686
    Abstract: The present invention generally provides devices and methods involving electrochemical actuation. The devices may comprise at least one component capable of exhibiting a volumetric or dimensional change upon application of a voltage. In some cases, the volumetric or dimensional change may produce mechanical work. Some embodiments of the invention may provide devices capable of exhibiting high actuation rates and supporting high amounts of stress (e.g., in tensile and/or compressive loading). In some embodiments, the present invention may provide morphing structures that may be useful in applications such as airfoils.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: August 9, 2011
    Assignee: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Steven R. Hall, Fernando Tubilla Kuri, Kyungyeol Song, Timothy E. Chin, Georg Baetz
  • Patent number: 7923895
    Abstract: The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: April 12, 2011
    Assignee: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Steven R. Hall, Yukinori Koyama, Kyungyeol Song, Timothy E. Chin, Urs Rhyner, Dimitrios Sapnaras, Fernando Tubilla
  • Publication number: 20100007248
    Abstract: The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain.
    Type: Application
    Filed: September 10, 2008
    Publication date: January 14, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Steven R. Hall, Yukinori Koyama, Kyungyeol Song, E. Timothy Chin, Urs Rhyner, Dimitrios Sapnaras, Fernando Tubilla
  • Patent number: 7541715
    Abstract: The present invention provides devices and structures and methods of use thereof in electrochemical actuation. This invention provides electrochemical actuators, which are based, inter-alia, on an electric field-driven intercalation or alloying of high-modulus inorganic compounds, which can produce large and reversible volume changes, providing high actuation energy density, high actuation authority and large free strain.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: June 2, 2009
    Assignee: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Steven R. Hall, Yukinori Koyama, Kyungyeol Song, E. Timothy Chin, Urs Rhyner, Dimitrios Sapnaras, Fernando Tubilla
  • Publication number: 20080157713
    Abstract: The present invention generally provides devices and methods involving electrochemical actuation. The devices may comprise at least one component capable of exhibiting a volumetric or dimensional change upon application of a voltage. In some cases, the volumetric or dimensional change may produce mechanical work. Some embodiments of the invention may provide devices capable of exhibiting high actuation rates and supporting high amounts of stress (e.g., in tensile and/or compressive loading). In some embodiments, the present invention may provide morphing structures that may be useful in applications such as airfoils.
    Type: Application
    Filed: April 26, 2007
    Publication date: July 3, 2008
    Applicant: Massachusetts Institute of Technology
    Inventors: Yet-Ming Chiang, Steven R. Hall, Fernando Tubilla Kuri, Kyungyeol Song, Timothy E. Chin, Georg Baetz
  • Patent number: 7327637
    Abstract: The invention provides an acoustic actuator, including an acoustic stress wave generator and an actuation material operatively positioned relative to the acoustic stress wave generator for delivery of acoustic stress waves from the generator to the actuation material.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: February 5, 2008
    Assignee: Massachusetts Institute of Technology
    Inventors: Joshua M. Chambers, Steven R. Hall, Jesse M. Simon
  • Patent number: 6347688
    Abstract: A New and improved stabilizer for use in conjunction with a wheelchair is disclosed. The device incorporates a multi part lever mechanism that is activated when no patient is seated on the seat area of the wheelchair, when the patient is preparing (or being assisted) to sit on the seat area and the patients weight is not fully pressing on the seat area, or the patient is getting up (or being assisted) from the seat area of the wheelchair and the patients weight pushing on the seat area is being reduced. The lever mechanism is deactivated when the seat area of the wheelchair is depressed by the patients weight. When the lever mechanism is activated a plurality of posts with tips that include friction means are pressed against the ground preventing the wheelchair from freely rolling in a backward direction.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: February 19, 2002
    Inventors: Steven R. Hall, Janet C. Hall
  • Patent number: 5907211
    Abstract: An actuator having two frames, each frame including a distal end member, a proximal pivot end member or proximal end pivot point, and at least two elongated side members connected between the distal end member and the proximal pivot end member of that frame. A flexure is disposed between an end of the pivot end member of the first frame and an end of the pivot end member of the second frame. A first longitudinal span member is disposed between the distal end member of the second frame and the pivot end member of the first frame, and a second longitudinal span member is disposed between the distal end member of the first frame and the pivot end member of the second frame. At least one of the first and second longitudinal span members is an expansive element having a longitudinal axis along which dimensional strain can be induced in response to an applied stimulus.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: May 25, 1999
    Assignee: Massachusetts Institute of Technology
    Inventors: Steven R. Hall, Eric F. Prechtl
  • Patent number: 5224826
    Abstract: Electrically deformable material such as piezoelectric material is used to deform a deflectable flap on an airfoil such as a helicopter blade. The electrically deformable material is controlled to deflect the flap in a manner to control vibrations transmitted from a helicopter blade to the helicopter air frame. In a preferred embodiment, the electrically deformable material and mechanical linkages are segmented along the length of the rotor blade. In this way, differential actuation of the deformable elements results in variable flap deflections along the length of the rotor.
    Type: Grant
    Filed: July 26, 1989
    Date of Patent: July 6, 1993
    Assignee: Massachusetts Institute of Technology
    Inventors: Steven R. Hall, Ronald L. Spangler, Jr.
  • Patent number: 5117658
    Abstract: A washing machine having a mid-level pivot and traverse suspension system. The washing machine includes a tub assembly disposed over a support, with the assembly having a center of mass disposed at approximately the same axial position as the typical out-of-balance load. The pivoting force is a function of the distance between the center of mass of the tub assembly and the out-of-balance load. Thus, the pivoting forces are reduced, as well as the corresponding reaction forces transferred to the floor.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: June 2, 1992
    Assignee: Raytheon Company
    Inventors: Ross L. Bisplinghoff, William R. Quinn, Steven R. Hall, Joseph C. Maiellano, Jr., Gregory L. Malchow, W. Wallace White
  • Patent number: 4450441
    Abstract: The dot matrix plasma display of the present invention comprises a plurality of parallel cathode strips mounted on the upper surface of a dielectric substrate. A glass plate is sealingly engaged over the upper surface of the substrate in spaced relation thereto so as to form an envelope therebetween. The undersurface of the glass plate includes a plurality of anode strips which extend in a direction parallel to one another and perpendicular to the cathode strips located on the substrate below. A dielectric film is printed over the cathode strips and includes a plurality of apertures therein which correspond to the junctures between the anode strips and the cathode strips, these junctures forming a dot matrix. Ionizable gas is contained within the envelope and is adapted to glow adjacent the junctures of any simultaneously actuated anode and cathode strips.The method for driving the dot matrix plasma display includes actuating the cathode strips one at a time sequentially.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: May 22, 1984
    Inventors: Herman R. Person, Joseph F. Hesse, Steven R. Hall
  • Patent number: RE33520
    Abstract: The dot matrix plasma display of the present invention comprises a plurality of parallel cathode strips mounted on the upper surface of a dielectric substrate. A glass plate is sealingly engaged over the upper surface of the substrate in spaced relation thereto so as to form an envelope therebetween. The undersurface of the glass plate includes a plurality of anode strips which extend in a direction parallel to one another and perpendicular to the cathode strips located on the substrate below. A dielectric film is printed over the cathode strips and includes a plurality of apertures therein which correspond to the junctures between the anode strips and the cathode strips, these junctures forming a dot matrix. Ionizable gas is contained within the envelope and is adapted to glow adjacent the junctures of any simultaneously actuated anode and cathode strips.The method for driving the dot matrix plasma display includes actuating the cathode strips one at a time sequentially.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: January 15, 1991
    Assignee: Dale Electronics, Inc.
    Inventors: Herman R. Person, Joseph F. Hesse, Steven R. Hall