Patents by Inventor Paul Mitchell

Paul Mitchell 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: 4863037
    Abstract: An apparatus for the automated processing of bulk mail in a continuous and automatic procedure includes an operative combination of processing stations including an input station for receiving incoming mail in bulk fashion and for separting the pieces of mail for individual delivery to the remainder of the apparatus; a station for detecting irregularities in the contents of the envelopes, such as metal items, folded contents, or oversized items; a station for out-sorting envelopes rejected in accordance with the determinations made at the detection station; a station for opening the envelopes, preferably along multiple edges; a station for removing the contents from the opened envelopes, for subsequent processing of the contents; and a series of stations for handling and orienting the contents for subsequent delivery to a plurality of output stackers.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: September 5, 1989
    Assignee: Opex Corporation
    Inventors: Albert F. Stevens, Robert R. DeWitt, William R. Lile, Paul Mitchell, Stephen Tentarelli
  • Patent number: 4193089
    Abstract: A radiation imaging system and method is disclosed for producing an enhanced television image from a light image produced by an image intensifier tube having an unusually large output face and corresponding to a pattern of penetrative radiation from a subject. A source directs radiation such as X-rays through the subject and the image tube converts the emergent radiation pattern to a corresponding visible light image at an output phosphor. A television apparatus including a pickup tube views the output light image at a tube input face by way of a lens assembly and converts the light image to electrical, including video, signals. A television monitor reconverts the electrical signals to a visible television image of enhanced quality representing the pattern of radiation from the subject.The illuminated portion of the image tube output phosphor is similar in size and has the same shape as the input face of the television pickup tube.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: March 11, 1980
    Assignee: Picker Corporation
    Inventors: Robert W. Brougham, Paul Mitchell
  • Patent number: 4070696
    Abstract: A circuit for cancelling nontonal variations in the output signal from a facsimile scanner. The circuit generates a location signal which corresponds to the physical location of the document sample. The location signal is passed through a function generator, inverted and thereafter multiplied with the output signal of the scanner. Since the characteristic of the inverted function generator output is the reciprocal of the nontonal characteristics of the scanner signal, the resulting output signal from the multiplier is substantially free of nontonal variations.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: January 24, 1978
    Assignee: Teletype Corporation
    Inventor: Paul Mitchell