Patents by Inventor Devadas Dorai-Raj

Devadas Dorai-Raj 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: 7177028
    Abstract: A spool (12), for supporting a fiber optic coil (14) and a shield (118) surrounding the spool and fiber optic coil, includes a centrally placed, bolt-receiving opening (29). The shield includes a lower shield portion (20), which supports the spool and the fiber optic coil, and an upper shield portion (118). The upper and lower shield portions are arranged to interfit with each other at an interface (121). The upper shield portion has a centrally placed fastener-receiving opening (124) which is alignable with the centrally placed, bolt-receiving opening of the spool. A bolt (156) has a head (156a), a shank (156b) and a threaded end (156c, 156d). The bolt head is engageable with the spool through intermediary structure (48). The shank is insertable through the centrally placed, bolt-receiving opening (29) and the lower shield opening (26), for radially centering the assembly and its components. The threaded end is disposed to engage a threaded opening (68) in a gyroscope assembly support (66).
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: February 13, 2007
    Assignee: Litton Systems, Inc.
    Inventors: David M. Gilbreath, Richard Anderson, Devadas Dorai-Raj, Arthur D. Lang
  • Publication number: 20050041252
    Abstract: A spool (12), for supporting a fiber optic coil (14) and a shield (118) surrounding the spool and fiber optic coil, includes a centrally placed, bolt-receiving opening (29). The shield includes a lower shield portion (20), which supports the spool and the fiber optic coil, and an upper shield portion (118). The upper and lower shield portions are arranged to interfit with each other at an interface (121). The upper shield portion has a centrally placed fastener-receiving opening (124) which is alignable with the centrally placed, bolt-receiving opening of the spool. A bolt (156) has a head (156a), a shank (156b) and a threaded end (156c, 156d). The bolt head is engageable with the spool through intermediary structure (48). The shank is insertable through the centrally placed, bolt-receiving opening (29) and the lower shield opening (26), for radially centering the assembly and its components. The threaded end is disposed to engage a threaded opening (68) in a gyroscope assembly support (66).
    Type: Application
    Filed: June 17, 2004
    Publication date: February 24, 2005
    Inventors: David Gilbreath, Richard Anderson, Devadas Dorai-Raj, Arthur Lang
  • Patent number: 6575032
    Abstract: A suspension for a gyroscopic float assembly in a floating gyroscope system comprises a pair of flexures that each have an outer rim and a plurality of flexure beams extending from the outer rim. A plurality of flexure tabs extend outward from outer perimeter portions of the rims for mounting the flexure assembly to a pair of end caps. A plurality of strain relief passages formed in the rims is arranged to provide relief from thermally induced stresses. A plurality of angular stops formed in inner perimeter portions of the rims is arranged to constrain the flexure against rotation about a selected axis.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: June 10, 2003
    Assignee: Litton Systems, Inc.
    Inventors: Richard Anderson, Devadas Dorai-Raj
  • Publication number: 20030019295
    Abstract: A suspension for a gyroscopic float assembly in a floating gyroscope system comprises a pair of flexures that each have an outer rim and a plurality of flexure beams extending from the outer rim. A plurality of flexure tabs extend outward from outer perimeter portions of the rims for mounting the flexure assembly to a pair of end caps. A plurality of strain relief passages formed in the rims is arranged to provide relief from thermally induced stresses. A plurality of angular stops formed in inner perimeter portions of the rims is arranged to constrain the flexure against rotation about a selected axis.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventors: Richard Anderson, Devadas Dorai-Raj