Patents by Inventor John L. Hatcher

John L. Hatcher 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: 5862483
    Abstract: In a method of providing cellular telephone service to a mobile telephone located in an off-load cellular telephone system adjacent to a main cellular telephone system, the mobile telephone is registered with the off-load cellular telephone system upon the mobile telephone entering the off-load cellular telephone system, and then is registered with the main cellular telephone system as being located in the off-load cellular telephone system as a function of predetermined criteria. During the time in which the mobile telephone has entered the off-load cellular telephone system but has not yet registered with the main cellular telephone system as being located in the off-load cellular telephone system, rebroadcasting page signals from main cellular telephone system into the off-load cellular telephone system ensures delivery of incoming telephone calls to the mobile telephone.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: January 19, 1999
    Assignee: DSC/Celcore Inc.
    Inventors: Anthony G. Fletcher, John L. Hatcher
  • Patent number: 5521961
    Abstract: In a method of providing cellular telephone service to a mobile telephone located in an off-load cellular telephone system adjacent to a main cellular telephone system, the mobile telephone is registered with the off-load cellular telephone system upon the mobile telephone entering the off-load cellular telephone system, and then is registered with the main cellular telephone system as being located in the off-load cellular telephone system as a function of predetermined criteria. During the time in which the mobile telephone has entered the off-load cellular telephone system but has not yet registered with the main cellular telephone system as being located in the off-load cellular telephone system, rebroadcasting page signals from main cellular telephone system into the off-load cellular telephone system ensures delivery of incoming telephone calls to the mobile telephone.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: May 28, 1996
    Assignee: Celcore, Inc.
    Inventors: Anthony G. Fletcher, John L. Hatcher
  • Patent number: 4111296
    Abstract: This invention is conerned with conveyors using reciprocating flights to convey material along the length of the conveyor. The conveyor consists essentially of a bed of articulated plates, a track constraining a chain adjacent a first longitudinal edge of the bed, spaced flights attached to the chain and located to extend across the bed and means for reciprocating the chain along the track. The chain is preferably made of rigid members of substantially uniform cross-section and the flights are shaped bars having one end adapted to be pivotally attached to the chain and are reduced in their height towards their free ends with the trailing edges of each flight tapered downwardly towards their bottom surfaces and inclined towards the leading edges at their free ends which ends are chamfered.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: September 5, 1978
    Inventors: Mark B. Glossop, Adrian C. Buckmaster, Neville G. W. Cook, Justin P. M. Hojem, Noel C. Joughin, Richard F. Taylor, Robert W. Cramp, John L. Hatcher