Patents by Inventor Jennings W. Elliott

Jennings W. Elliott 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: 4669860
    Abstract: A method and apparatus for improving the quality of recordings from electrophotographic recording apparatuses by calculating the surface charge remaining on the recording medium adjacent the development electrode and adjusting the voltage of the development electrode to match the remaining surface charge; controlling the corona charger to operate at two levels, a first level for charging the surface of the recording medium and a second lower level at which neither light nor ions are emitted; controlling the fuser lamp in response to changes in ambient temperature, line voltage, and the rate of recording medium advancement to obtain optimum toner fusion without damage to the recording medium; deactivating the toner pump and air knife blower if the recording medium has not moved for a predetermined period of time, and further including a development electrode design for maintaining a uniform layer of toner adjacent the recording medium.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: June 2, 1987
    Assignee: Schlumberger Technology Corporation
    Inventor: Jennings W. Elliott
  • Patent number: 4030064
    Abstract: According to one embodiment, distinctive indicia having a "three-dimensional" appearance and representative of well logging data is produced by a CRT (Cathode-ray tube) recorder by modulating both the intensity and position of the sweeping electron beam in response to variations in the data. In another embodiment, distinctive indicia in the form of a vector or arrow representative of the data is produced by sweeping the CRT electron beam in such a way that it defines an increasing spiral pattern. The electron beam is then turned on for a short pulse at the same angular position of each cycle of the spiral. For purposes of synchronization, in each of the above embodimens the beam sweep is initiated by a recurring event, such as a pulse indicative of a given incremental change in the depth level from which the data was device.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: June 14, 1977
    Assignee: Schlumberger Technolgy Corporation
    Inventor: Jennings W. Elliott
  • Patent number: 4020451
    Abstract: According to one embodiment, distinctive indicia having a "three-dimensional" appearance and representative of well logging data is produced by a CRT (Cathode-ray tube) recorder by modulating both the intensity and position of the sweeping electron beam in response to variations in the data. In another embodiment, distinctive indicia in the form of a vector or arrow representative of the data is produced by sweeping the CRT electron beam in such a way that it defines an increasing spiral pattern. The electron beam is then turned on for a short pulse at the same angular position of each cycle of the spiral. For purposes of synchronization, in each of the above embodiments the beam sweep is initiated by a recurring event, such as a pulse indicative of a given incremental change in the depth level from which the data was derived.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: April 26, 1977
    Assignee: Schlumberger Technology Corporation
    Inventor: Jennings W. Elliott
  • Patent number: 4010476
    Abstract: In accordance with illustrative embodiments of the present invention, data signals, particularly well logging data in analog or digital form, is recorded by a cathode ray tube recorder. A representation of the CRT beam is repetitively swept across a recording medium while being modulated with representations of the well logging signals. This modulation varies as a function of the rate of change of the well logging signals to produce an even density recording. Coding of the recording lines or traces and the areas between selected traces can be accomplished. This coding of the lines is also varied in dependence on the well logging signal rate of change to produce a uniform coding presentation. Depth information can be recorded on the recording medium by writing depth numbers and depth lines on the record medium. Moreover, a section by section visual presentation of the data can be produced while it is being recorded.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: March 1, 1977
    Assignee: Schlumberger Technology Corporation
    Inventor: Jennings W. Elliott
  • Patent number: 3986163
    Abstract: In accordance with illustrative embodiments of the present invention, well logging data in analog or digital form is recorded by a cathode ray tube recorder. A representation of the CRT beam is repetitively swept across a recording medium while being modulated with representations of the well logging signals. This modulation varies as a function of the rate of change of the well logging signals to produce an even density recording. Coding of the recorded lines or traces and the areas between selected traces can be accomplished. This coding of the lines is also varied in dependence on the well logging signal rate of change to produce a uniform coding presentation. Depth information can be recorded on the recording medium by writing depth numbers and depth lines on the record medium. Moreover, a section by section visual presentation of the data can be produced while it is being recorded.
    Type: Grant
    Filed: November 4, 1974
    Date of Patent: October 12, 1976
    Assignee: Schlumberger Technology Corporation
    Inventor: Jennings W. Elliott