Patents by Inventor David H. Walters

David H. Walters 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: 7013084
    Abstract: A hierarchical and distributed control architecture for managing an optical communications network. The architecture includes a line card manager level for managing individual line cards in an optical switch, a node manager level for managing multiple line cards in an optical switch/node, and a network management system level for managing multiple optical switches/nodes in a network. An event manager at the node manager level enables software components that are running at the node manager to register for and receive events, and to post events. The events may be triggered, e.g., by a change in a status of the switch, or an alarm condition. Control architecture functionalities include signaling, routing, protection switching and network management. Furthermore, the network management function includes a topology manager, a performance manager, a connection manager, a fault detection manager, and a configuration manager.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: March 14, 2006
    Assignee: Lambda OpticalSystems Corporation
    Inventors: Abdella Battou, Moon W. Kim, Anastasios Tzathas, David H. Walters, Mario F. Alvarez, David M. Brooks, I. Michael Mandelberg, Chin J. Chen
  • Patent number: 6905155
    Abstract: In a motor vehicle having a cargo area over an in-floor recess for storing a spare wheel and tire, a multiple height load floor system for covering the in-floor recess provides the option of selecting the depth of the recess. The floor system is adapted to allot a lesser volume to the in-floor recess for use with an undersized spare, or a greater volume when a full-size spare is provided. In a motor vehicle with folding seats, the folding seats are selectively raised or lowered to align with the upper surface of the load floor system in its selected position, in order to present a substantially flat surface for carrying cargo. The selective raising or lowering of the seats and the floor system can be achieved through manually actuated or electrically powered mechanisms.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: June 14, 2005
    Assignee: DaimlerChrysler Corporation
    Inventors: William T Presley, Paulius Butkunas, David H Walter
  • Patent number: 6792815
    Abstract: A ring load cell configured to measure force, moment, and temperature components in an orthogonal three-axis coordinate system. The ring-load-cell structure consists of two annular flanges having a common central axis through which a shaft may be disposed. The annular flanges are interconnected by a plurality of filleted posts configured to enhance strain distribution and which are disposed parallel to the common central axis, equally spaced about the circumference of the annular flanges. A plurality of strain gauges is disposed either on the posts or on fillets, and a plurality of temperature sensors is disposed either on the posts or on the inner surfaces of the annular flanges. Signals from the strain gauges and temperature sensors are processed to provide thermally compensated strain measurements of the applied forces and moments on the ring-load-cell structure in the orthogonal three-axis coordinate system.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: September 21, 2004
    Assignee: The Timken Company
    Inventors: Graham F. McDearmon, David R. Leeper, David H. Walter, Doug H. Smith
  • Publication number: 20030209085
    Abstract: A ring load cell configured to measure force, moment, and temperature components in an orthogonal three-axis coordinate system. The ring-load-cell structure consists of two annular flanges having a common central axis through which a shaft may be disposed. The annular flanges are interconnected by a plurality of filleted posts configured to enhance strain distribution and which are disposed parallel to the common central axis, equally spaced about the circumference of the annular flanges. A plurality of strain gauges is disposed either on the posts or on fillets, and a plurality of temperature sensors is disposed either on the posts or on the inner surfaces of the annular flanges. Signals from the strain gauges and temperature sensors are processed to provide thermally compensated strain measurements of the applied forces and moments on the ring-load-cell structure in the orthogonal three-axis coordinate system.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 13, 2003
    Applicant: The Timken Company
    Inventors: Graham F. McDearmon, David R. Leeper, David H. Walter, Doug H. Smith
  • Publication number: 20030163555
    Abstract: A hierarchical and distributed control architecture for managing an optical communications network. The architecture includes a line card manager level for managing individual line cards in an optical switch, a node manager level for managing multiple line cards in an optical switch/node, and a network management system level for managing multiple optical switches/nodes in a network. An event manager at the node manager level enables software components that are running at the node manager to register for and receive events, and to post events. The events may be triggered, e.g., by a change in a status of the switch, or an alarm condition. Control architecture functionalities include signaling, routing, protection switching and network management. Furthermore, the network management function includes a topology manager, a performance manager, a connection manager, a fault detection manager, and a configuration manager.
    Type: Application
    Filed: February 28, 2001
    Publication date: August 28, 2003
    Inventors: Abdella Battou, Moon W. Kim, Anastasios Tzathas, David H. Walters, Mario F. Alvarez, David M. Brooks, I. Michael Mandelberg, Chin J. Chen
  • Publication number: 20020176131
    Abstract: An optical communications network having at least one optical switch connected to a network access device. The optical switch includes a first line card disposed along a first communications path over which a first optical signal is transmitted. The first line card is connected to the network access device. A second line card is disposed along a second communications path over which a second optical signal is transmitted. An inter-card communication channel is provided for bridging the second path to the first line card. The system enables the rapid switching of traffic from the first optical path to the second optical path.
    Type: Application
    Filed: February 28, 2001
    Publication date: November 28, 2002
    Inventors: David H. Walters, Abdella Battou, Anastasios Tzathas
  • Patent number: 6019410
    Abstract: A fold out bed extender for a motor vehicle includes a rear panel, a first set of swing panels and a second set of swing panels articulable from a stowed position to an operable position. Each set of swing panels preferably has a leading panel, a trailing panel and a hinge pivotally interconnecting the leading panel and trailing panels. Each leading panel is adapted to be pivotally attached to the bed of the vehicle and each trailing panel is detachably coupled to the rear panel when the first and second sets of swing panels are in the operable position.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: February 1, 2000
    Assignee: DaimlerChrysler
    Inventors: Mark C. Trostle, Carl Mather, Nigel Giddons, David H. Walter
  • Patent number: 5161808
    Abstract: A collapsible planar sealing gasket includes a number of longitudinally extending sections disposed in an end-to-end relationship with each longitudinal section being integrally and continuously joined to an adjacent longitudinally extending section by a corner portion that has an arcuate cut in the gasket material extending from one longitudinal section to an adjoining longitudinal section so as to define a rounded portion of gasket material which allows the bending of the gasket material between a collapsed and an operable position.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: November 10, 1992
    Assignee: Great Gasket Concepts, Inc.
    Inventor: David H. Walters