Patents by Inventor James Tyler

James Tyler 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).

  • Articles of manufacture for and process of transporting daylight through building plenum
    Publication number: 20030126811
    Abstract: Combining of ceiling frameworks, and structural members of skylight plenum enclosures in daylighting applications. When daylighting enclosures are designed without enclosure assemblies being directly connected to suspended ceiling types framework, but only extend and connect to the ceiling via the fabric portion of structure. Allowing daylighting enclosures to “float” above the ceiling framework and have minimal impact upon it when connected.
    Type: Application
    Filed: December 3, 2002
    Publication date: July 10, 2003
    Inventor: James Tyler Van Dame
  • Telephone receiver-off-hook detector
    Patent number: 4034162
    Abstract: First and second alternating signals at a central office are applied to a telephone subscriber's lines. The level of the second signal current is used to control the level of the first signal. The nonlinear impedance vs. voltage characteristic of the subscriber's telephone in an off-hook state causes harmonics of the first signal to be generated. Harmonics so generated are detected at the central office to indicate the presence of a receiver-off-hook telephone.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: July 5, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: James Tyler Holt