Patents by Inventor Edwin Zucker

Edwin Zucker 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: 4095880
    Abstract: A document reproduction machine having an extended range of magnifications employs a scanning optical system which is controlled as to scanning speed and distance of travel by the selected magnification. In an extended reduction copying range the speed of the scanning optical system is automatically increased in proportion to the selected magnification reduction, but the increase in scanning distance is limited to the platen size. A clutch mechanism is employed to terminate the normally increasing scanning distance in the extended reduction range.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: June 20, 1978
    Assignee: Xerox Corporation
    Inventors: David K. Shogren, Edward C. Bock, Edwin Zucker
  • Patent number: 4093374
    Abstract: A document reproduction machine having a multiple range of magnifications employs a scanning optical system which is controlled as to scanning speed and distance of travel by the selected magnification. In the higher reduction copying ranges the speed of the scanning optical system is automatically increased in proportion to the selected magnification reduction, but the increase in scanning distance is limited to the platen size. Multiple cams are employed for each range of magnification, and means are provided to change the scanning drive means between the multiple cams.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: June 6, 1978
    Assignee: Xerox Corporation
    Inventors: Edwin Zucker, David K. Shogren, David N. Redden
  • Patent number: 4032231
    Abstract: A document reproduction machine having a multiple range of magnifications employs a scanning optical system which is controlled as to scanning speed and distance of travel by the selected magnification using a three-dimensional cam mechanism. In the higher reduction copying ranges the speed of the scanning optical system is automatically increased in proportion to the selected magnification reduction, and the increase in scanning distance is tailored to match expected document size to achieve a minimum amount of scanning distance.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: June 28, 1977
    Assignee: Xerox Corporation
    Inventor: Edwin Zucker
  • Patent number: 3943049
    Abstract: This invention relates to a method and apparatus for creating high shear stresses in a particulate suspension prior to use of such suspension for imaging or inking. The method and apparatus in one environment function to stress a thin layer of an electrophoretic suspension of particles in a liquid carrier. The prestressed suspension is better suited than unstressed suspensions for preparing both monochromatic and polychromatic copies from originals by particle migration through the suspension when it is exposed to electromagnetic radiation in image configuration while in an electric field across the suspension between two electrodes. The method and apparatus is also used for printing inks in order to form a prestressed, uniform, thin layer of the ink for application to the press.
    Type: Grant
    Filed: April 17, 1974
    Date of Patent: March 9, 1976
    Assignee: Xerox Corporation
    Inventor: Edwin Zucker