Patents by Inventor Karavattuveetil G. Rabindran

Karavattuveetil G. Rabindran 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).

  • Sheet feed hopper for insertion machine
    Patent number: 4877346
    Abstract: An improved printing apparatus for printing pre-selected indicia on an envelope or other documents to be placed on a transport raceway of an insertion machine.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: October 31, 1989
    Assignee: Bell & Howell Company
    Inventors: Kenneth L. Guenther, Karavattuveetil G. Rabindran, Thomas J. Faber, Jack S. Abrams
  • Lamp regulator circuit for rotary camera
    Patent number: 4254364
    Abstract: A flow, or rotary type, microfilm recording apparatus for filming documents having a document transport means to move documents past an aperture area. An alternating current powered fluorescent lamp is employed for illuminating the documents in the aperture area. In order to adjust, set and maintain a substantially constant level of illumination in the aperture area and to reduce flicker, a lamp regulator circuit is provided which includes a shunted rectifier load circuit and a variable current device responsive to the illumination from the fluorescent lamp for varying the voltage drop across the shunt in accordance with the illumination.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: March 3, 1981
    Assignee: Bell & Howell Company
    Inventors: John R. Flint, Karavattuveetil G. Rabindran, Jerry W. Clevenger