Patents by Inventor Abraham Cherian

Abraham Cherian 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).

  • Transparency copying machine
    Patent number: 4043656
    Abstract: An electrophotographic printing machine in which a transparency or an opaque original document is reproduced. In reproducing a transparency, a mirror is pivoted from a position remote from the light image path into the path of the transparency light image. When an opaque original document is being reproduced, the mirror is pivoted to the position remote from the light image path.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: August 23, 1977
    Assignee: Xerox Corporation
    Inventor: Abraham Cherian
  • Removable screening system for a transparency reproduction machine
    Patent number: 4014607
    Abstract: An electrophotographic printing machine in which a transparency or opaque original document is reproduced. A movable screen is located in a first position spaced from the path of the transparency light image in order to reproduce the original document. When the transparency is being reproduced, the screen is moved to a second position in the path of the transparency light image for modulating the light image thereof.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: March 29, 1977
    Assignee: Xerox Corporation
    Inventor: Abraham Cherian
  • Fuser conveyor belt
    Patent number: 4015103
    Abstract: An apparatus in which a powder pattern formed on a sheet of support material is permanently affixed thereto. The sheet of support material is advanced along a path of movement by a conveyor belt. As the sheet advances, the powder pattern thereon is heated. The belt is extended when positioned in the drive system to form a normal force therebetween. This normal force and associate coefficient of friction develops a frictional force minimizing relative movement or slippage therebetween.
    Type: Grant
    Filed: February 19, 1975
    Date of Patent: March 29, 1977
    Assignee: Xerox Corporation
    Inventor: Abraham Cherian
  • Multicolor transparency reproduction machine
    Patent number: D247295
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: February 21, 1978
    Assignee: Xerox Corporation
    Inventors: Abraham Cherian, Ruedigar W. Knodt