Patents by Inventor A. Christian Walton

A. Christian Walton 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: 8343132
    Abstract: A method includes inserting a distal end portion of a needle of a medical injector into a skin of a body. An energy source operatively coupled to the medical injector is actuated such that a dermal filler is conveyed from the medical injector into the skin through the distal end portion of the needle. The distal end portion of the needle is moved within the skin during the actuating.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: January 1, 2013
    Assignee: Nordson Corporation
    Inventors: Scott Heneveld, John R. Krumme, Stacy R. Smith, Christian Walton
  • Publication number: 20100324531
    Abstract: A method includes inserting a distal end portion of a needle of a medical injector into a skin of a body. An energy source operatively coupled to the medical injector is actuated such that a dermal filler is conveyed from the medical injector into the skin through the distal end portion of the needle. The distal end portion of the needle is moved within the skin during the actuating.
    Type: Application
    Filed: August 30, 2010
    Publication date: December 23, 2010
    Applicant: NORDSON CORPORATION
    Inventors: Scott Heneveld, John F. Krumme, Stacy R. Smith, Christian Walton
  • Publication number: 20090240200
    Abstract: A method includes inserting a distal end portion of a needle of a medical injector into a skin of a body. An energy source operatively coupled to the medical injector is actuated such that a dermal filler is conveyed from the medical injector into the skin through the distal end portion of the needle. The distal end portion of the needle is moved within the skin during the actuating.
    Type: Application
    Filed: June 3, 2009
    Publication date: September 24, 2009
    Inventors: Scott HENEVELD, John F. KRUMME, Stacy R. SMITH, Christian WALTON
  • Publication number: 20090124996
    Abstract: A method includes inserting a distal end portion of a needle of a medical injector into a skin of a body. An energy source operatively coupled to the medical injector is actuated such that a dermal filler is conveyed from the medical injector into the skin through the distal end portion of the needle. The distal end portion of the needle is moved within the skin during the actuating.
    Type: Application
    Filed: May 2, 2008
    Publication date: May 14, 2009
    Inventors: Scott Heneveld, John F. Krumme, Stacy R. Smith, Christian Walton
  • Patent number: 7198133
    Abstract: A one-piece, transparent flexible ear coupler for use with hearing evaluation is disclosed. It includes an annular side wall and a bottom wall forming an acoustic chamber. A flexible adhesive-backed flange is disposed on the periphery of the ear coupler. The flange attaches to the subject's head, firmly holding the ear coupler in place over the ear. The annular side wall has a port for the placement of a transducer assembly, and also has ribs to help lock the transducer assembly in place. The transducer assembly can be placed in an up or down position, and can be switched between positions while the coupler is attached to the subject's head. The ear coupler advantageously conforms to the subject's head, thereby minimizing the likelihood that the ear coupler will become detached during testing. The coupler can be inexpensively manufactured, since its one-piece design allows the use of relatively low-cost processes such as injection molding and thermoforming.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: April 3, 2007
    Inventors: Jessica Ash Warring, Alfred Christian Walton
  • Patent number: 6938338
    Abstract: Microelectronic contacts, such as flexible, tab-like, cantilever contacts, are provided with asperities disposed in a regular pattern. Each asperity has a sharp feature at its tip remote from the surface of the contact. As mating microelectronic elements are engaged with the contacts, a wiping action causes the sharp features of the asperities to scrape the mating element, so as to provide effective electrical interconnection and, optionally, effective metallurgical bonding between the contact and the mating element upon activation of a bonding material.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: September 6, 2005
    Assignee: Tessera, Inc.
    Inventors: Joseph Fjelstad, John W. Smith, Thomas H. DiStefano, James Zaccardi, A. Christian Walton
  • Patent number: 6832663
    Abstract: A one-piece, transparent flexible ear coupler for use with hearing evaluation is disclosed. It includes an annular side wall and a bottom wall forming an acoustic chamber. A flexible adhesive-backed flange is disposed on the periphery of the ear coupler. The flange attaches to the subject's head, firmly holding the ear coupler in place over the ear. The annular side wall has a port for the placement of a transducer assembly, and also has ribs to help lock the transducer assembly in place. The transducer assembly can be placed in an up or down position, and can be switched between positions while the coupler is attached to the subject's head. The ear coupler advantageously conforms to the subject's head, thereby minimizing the likelihood that the ear coupler will become detached during testing. The coupler can be inexpensively manufactured, since its one-piece design allows the use of relatively low-cost processes such as injection molding and thermoforming.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: December 21, 2004
    Assignee: Natus Medical Inc.
    Inventors: Jessica Ash Warring, Alfred Christian Walton
  • Publication number: 20040216947
    Abstract: A one-piece, transparent flexible ear coupler for use with hearing evaluation is disclosed. It includes an annular side wall and a bottom wall forming an acoustic chamber. A flexible adhesive-backed flange is disposed on the periphery of the ear coupler. The flange attaches to the subject's head, firmly holding the ear coupler in place over the ear. The annular side wall has a port for the placement of a transducer assembly, and also has ribs to help lock the transducer assembly in place. The transducer assembly can be placed in an up or down position, and can be switched between positions while the coupler is attached to the subject's head. The ear coupler advantageously conforms to the subject's head, thereby minimizing the likelihood that the ear coupler will become detached during testing. The coupler can be inexpensively manufactured, since its one-piece design allows the use of relatively low-cost processes such as injection molding and thermoforming.
    Type: Application
    Filed: June 3, 2004
    Publication date: November 4, 2004
    Applicant: Natus Medical Inc.
    Inventors: Jessica Ash Warring, Alfred Christian Walton
  • Publication number: 20030192181
    Abstract: Microelectronic contacts, such as flexible, tab-like, cantilever contacts, are provided with asperities disposed in a regular pattern. Each asperity has a sharp feature at its tip remote from the surface of the contact. As mating microelectronic elements are engaged with the contacts, a wiping action causes the sharp features of the asperities to scrape the mating element, so as to provide effective electrical interconnection and, optionally, effective metallurgical bonding between the contact and the mating element upon activation of a bonding material.
    Type: Application
    Filed: April 17, 2003
    Publication date: October 16, 2003
    Inventors: Joseph Fjelstad, John W. Smith, Thomas H. DiStefano, James Zaccardi, A. Christian Walton
  • Publication number: 20030037988
    Abstract: A one-piece, transparent flexible ear coupler for use with hearing evaluation is disclosed. It includes an annular side wall and a bottom wall forming an acoustic chamber. A flexible adhesive-backed flange is disposed on the periphery of the ear coupler. The flange attaches to the subject's head, firmly holding the ear coupler in place over the ear. The annular side wall has a port for the placement of a transducer assembly, and also has ribs to help lock the transducer assembly in place. The transducer assembly can be placed in an up or down position, and can be switched between positions while the coupler is attached to the subject's head. The ear coupler advantageously conforms to the subject's head, thereby minimizing the likelihood that the ear coupler will become detached during testing. The coupler can be inexpensively manufactured, since its one-piece design allows the use of relatively low-cost processes such as injection molding and thermoforming.
    Type: Application
    Filed: August 27, 2001
    Publication date: February 27, 2003
    Inventors: Jessica Ash Warring, Alfred Christian Walton
  • Patent number: 6475163
    Abstract: An apparatus and method for evaluation of hearing loss is disclosed. The apparatus and method use evoked Auditory Brainstem Responses (ABR) to determine if the subject is able to hear iteratively administered click stimuli. The present invention evaluates the sufficiency of the patient connections, namely earphones and electrodes, to the evaluation device. More particularly, the present invention determines if the earphones are detached or deformed, if the electrodes have been reversed, or if the electrodes have become detached.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: November 5, 2002
    Assignee: Natus Medical, Inc
    Inventors: Matthijs P. Smits, Vineet Bansal, Abraham J. Totah, Bryan P. Flaherty, Alfred Christian Walton
  • Patent number: 6386314
    Abstract: An earphone assembly is disclosed that includes an annular baffle having an outer surface and an inner surface as well as an interior wall and an exterior wall. The interior wall defines a central chamber. A transparent, flexible lid is attached to the baffle along the outer surface, completely covering the central chamber and forming an acoustic seal with the baffle. The lid has an inner face and an outer face. The flexibility of the earphone is improved by creating hinges in the lid and by providing cuts, or other discontinuities, in the baffle. For example, a radial cut may be disposed in the annular baffle. Further, a circumferential cut may also (or alternatively) be disposed in the baffle, extending from the inner surface and disposed between the exterior wall and the interior wall. At least one hinge may be disposed on the flexible lid. To improve the attachment of the earphone to the patient's head, tabs are mounted to the exterior wall.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: May 14, 2002
    Assignee: Natus Medical, Inc.
    Inventors: Neil J. Sheehan, Christian Walton, David Sheraton, Toshibumi Wakayama, William New, Jr.
  • Publication number: 20020008966
    Abstract: Microelectronic contacts, such as flexible, tab-like, cantilever contacts, are provided with asperities disposed in a regular pattern. Each asperity has a sharp feature at its tip remote from the surface of the contact. As mating microelectronic elements are engaged with the contacts, a wiping action causes the sharp features of the asperities to scrape the mating element, so as to provide effective electrical interconnection and, optionally, effective metallurgical bonding between the contact and the mating element upon activation of a bonding material.
    Type: Application
    Filed: January 2, 2001
    Publication date: January 24, 2002
    Inventors: Joseph Fjelstad, John W. Smith, Thomas H. Distefano, James Zaccardi, A. Christian Walton
  • Patent number: 6205660
    Abstract: Microelectronic contacts, such as flexible, tab-like, cantilever contacts, are provided with asperities disposed in a regular pattern. Each asperity has a sharp feature at its tip remote from the surface of the contact. As mating microelectronic elements are engaged with the contacts, a wiping action causes the sharp features of the asperities to scrape the mating element, so as to provide effective electrical interconnection and, optionally, effective metallurgical bonding between the contact and the mating element upon activation of a bonding material.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: March 27, 2001
    Assignee: Tessera, Inc.
    Inventors: Joseph Fjelstad, John W. Smith, Thomas H. Distefano, James Zaccardi, A. Christian Walton
  • Patent number: 5934914
    Abstract: Microelectronic contacts, such as flexible, tab-like, cantilever contacts, are provided with asperities disposed in a regular pattern. Each asperity has a sharp feature at its tip remote from the surface of the contact. As mating microelectronic elements are engaged with the contacts, a wiping action causes the sharp features of the asperities to scrape the mating element, so as to provide effective electrical interconnection and, optionally, effective metallurgical bonding between the contact and the mating element upon activation of a bonding material.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: August 10, 1999
    Assignee: Tessera, Inc.
    Inventors: Joseph Fjelstad, John W. Smith, Thomas H. Distefano, James Zaccardi, A. Christian Walton
  • Patent number: 5812378
    Abstract: A connector for microelectronic includes a sheet-like body having a plurality of holes, desirably arranged in a regular grid pattern. Each hole is provided with a resilient laminar contact such as a ring of a sheet metal having a plurality of projections extending inwardly over the hole of a first major surface of the body. Terminals on a second surface of the connector body are electrically connected to the contacts. The connector can be attached to a substrate such a multi-layer circuit panel so that the terminals on the connector are electrically connected to the leads within the substrate. Microelectronic elements having bump leads thereon may be engaged with the connector and hence connected to the substrate, by advancing the bump leads into the holes of the connector to engage the bump leads with the contacts. The assembly can be tested, and if found acceptable, the bump leads can be permanently bonded to the contacts.
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: September 22, 1998
    Assignee: Tessera, Inc.
    Inventors: Joseph Fjelstad, John W. Smith, Thomas H. DiStefano, A. Christian Walton
  • Patent number: 5802699
    Abstract: A connector for microelectronic elements includes a sheet-like body having a plurality of holes, desirably arranged in a regular grid pattern. Each hole is provided with a resilient laminar contact such as a ring of a sheet metal having a plurality of projections extending inwardly over the hole of a first major surface of the body. Terminals on a second surface of the connector body are electrically connected to the contacts. The connector can be attached to a substrate such a multi-layer circuit panel so that the terminals on the connector are electrically connected to the leads within the substrate. Microelectronic elements having bump leads thereon may be engaged with the connector and hence connected to the substrate, by advancing the bump leads into the holes of the connector to engage the bump leads with the contacts. The assembly can be tested, and if found acceptable, the bump leads can be permanently bonded to the contacts.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: September 8, 1998
    Assignee: Tessera, Inc.
    Inventors: Joseph Fjelstad, John W. Smith, Thomas H. DiStefano, A. Christian Walton
  • Patent number: 5632631
    Abstract: Microelectronic contacts, such as flexible, tab-like, cantilever contacts, are provided with asperities disposed in a regular pattern. Each asperity has a sharp feature at its tip remote from the surface of the contact. As mating microelectronic elements are engaged with the contacts, a wiping action causes the sharp features of the asperities to scrape the mating element, so as to provide effective electrical interconnection and, optionally, effective metallurgical bonding between the contact and the mating element upon activation of a bonding material.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: May 27, 1997
    Assignee: Tessera, Inc.
    Inventors: Joseph Fjelstad, John W. Smith, Thomas H. Distefano, James Zaccardi, A. Christian Walton
  • Patent number: 4884864
    Abstract: A fiber optic connector which includes a connector body having at least one socket cavity therein and a socket contact inserted into the socket contact cavity. The socket contact has a retention area and a cable termination area at one end and a retractable contact portion at the other end. The connector further includes means on the retractable contact portion for limiting axial movement of the contact portion so that when the contact portion is unretracted, a tip of the contact portion is substantially flush with a surface of the connector body.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: December 5, 1989
    Assignee: Raychem Corp.
    Inventors: Roger H. Ellis, A. Christian Walton, Akira Tomita
  • Patent number: D469873
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: February 4, 2003
    Assignee: Natus Medical Inc.
    Inventors: Jessica Ash Warring, Alfred Christian Walton