Patents by Inventor John Rigby

John Rigby 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: 6817651
    Abstract: A vehicle window seal assembly includes a division bar formed without structural metal and including one of an insert or an overlay layer of a relatively soft material. The division bar can be formed in an H configuration having an elastic hinge between a leg of the H profile and a cross piece. The division bar can also be formed to receive and engage the insert to locate sealing lips for contacting a moveable glass panel.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: November 16, 2004
    Assignee: Schlegel Corporation
    Inventors: Darrel B. Carvalho, William J. Konitsney, A. John Rigby, David T. Zwolinski
  • Publication number: 20030223364
    Abstract: A technique for classifying traffic at a network node involves programming a content addressable memory (CAM) array with multiple class-specific entries, where each of the class-specific entries has an associated traffic class, obtaining a protocol-independent key field from an incoming packet, and searching the programmed CAM array with the protocol-independent key field to identify an associated traffic class of the incoming packet. In another embodiment, each of the class-specific entries has an associated traffic distribution policy, which may be applied to an incoming packet.
    Type: Application
    Filed: June 28, 2002
    Publication date: December 4, 2003
    Inventors: James Yu, Mike Morrison, John Rigby
  • Publication number: 20030223358
    Abstract: Protection switching between primary and secondary paths in a packet-based network involves table entries that are pre-programmed with a primary path, a secondary path, and a value that identifies the primary path, referred to as a primary path identifier (PPI). When table entries are accessed to make forwarding decisions, the PPI is compared to a field that identifies that a particular path is down, referred to as a down path identifier (DPI). If the two fields match, (i.e., PPI=DPI), then the secondary path is selected instead of the primary path as the path on which the traffic should be forwarded.
    Type: Application
    Filed: January 10, 2003
    Publication date: December 4, 2003
    Inventors: John Rigby, Shiva Shenoy, Prashanth Ishwar, Apurva Mehta
  • Publication number: 20030205918
    Abstract: A vehicle window seal assembly includes a division bar formed without structural metal and including one of an insert or an overlay layer of a relatively soft material. The division bar can be formed in an H configuration having an elastic hinge between a leg of the H profile and a cross piece. The division bar can also be formed to receive and engage the insert to locate sealing lips for contacting a moveable glass panel.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Applicant: Schlegel Corporation
    Inventors: Darrel B. Carvalho, William J. Konitsney, A. John Rigby, David T. Zwolinski
  • Publication number: 20020102386
    Abstract: A weatherseal for reducing noise generation upon relative movement between the seal and a panel is disclosed. The weatherseal includes a plurality of particles forming a surface of a contact layer, wherein the plurality of particles has a multi-modal particle size distribution.
    Type: Application
    Filed: March 10, 2000
    Publication date: August 1, 2002
    Inventors: Krishnamachari Gopalan, A. John Rigby
  • Patent number: 5991163
    Abstract: An electronic circuit board assembly and method that enable close stacking and cooling of closely positioned pluralities of similar electronic I/O or memory boards and requiring high speed communication between the boards, such as high speed switching amongst the I/O terminals of the boards or CPU processing, and having an upper and a lower set of similar spaced groups of closely spaced vertical boards; powering terminals aligned along the upper edges of the upper set of boards, and along the lower edges of the lower set of boards, and terminals for connection with a switching fabric disposed along the lower edges of the upper set of boards and the upper edges of the lower set of boards; power backing planes mounted to power and support the lateral edges of the respective sets of groups of boards and extending across the upper and lower sections of the frame; and a plurality of parallel closely spaced vertical switching fabric boards comprising switching fabric (or CPU processing boards) and centrally mounted
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 23, 1999
    Assignee: Nexabit Networks, Inc.
    Inventors: Peter Marconi, Theodore W. Bilodeau, Michael John Rigby
  • Patent number: 5524254
    Abstract: The present invention provides an interlock scheme for use between a line card and an address recognition apparatus. The interlock scheme reduces the total number of read/write operations over a backplane bus coupling the line card to the address recognition apparatus required to complete a request/response transfer. Thus, the line card and address recognition apparatus are able to perform a large amount of request/response transfers with a high level of system efficiency. Generally, the interlocking scheme according to the present invention merges each ownership information storage location into the location of the request/response memory utilized to store the corresponding request/response pair to reduce data transfer traffic over the backplane bus. According to another feature of the interlock scheme of the present invention, each of the line card and the address recognition engine includes a table for storing information relating to a plurality of database specifiers.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: June 4, 1996
    Assignee: Digital Equipment Corporation
    Inventors: Fearghal Morgan, Joseph O'Callaghan, Michael J. Seaman, John Rigby, Andrew Walton, Una M. Quinlan, Stewart F. Bryant
  • Patent number: 5519858
    Abstract: The present invention is directed to an address recognition apparatus including an address recognition engine coupled to a look-up database. The look-up database is arranged to store network information relating to network addresses. The look-up database includes a primary database and a secondary database. The address recognition engine accepts as an input a network address for which network information is required. The address recognition engine uses the network address as an index to the primary database. The primary database comprises a multiway tree node structure (TRIE) arranged for traversal of the nodes as a function of preselected segments of the network address and in a fixed sequence of the segments to locate a pointer to an entry in the secondary database. The entry in the secondary database pointed to by the primary database pointer contains the network information corresponding to the network address. The address recognition engine includes a table for storing a plurality of database specifiers.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: May 21, 1996
    Assignee: Digital Equipment Corporation
    Inventors: Andrew Walton, Una M. Quinlan, Stewart F. Bryant, Michael J. Seaman, John Rigby, Fearghal Morgan, Joseph O'Callaghan