Patents by Inventor Dwipendra N. Guha

Dwipendra N. Guha 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: 5555587
    Abstract: A floor mopping machine for automatic mopping of the floor is disclosed comprising a movable housing and a rotatable mopping member including a plurality of spongy mop pieces capable of soaking liquid and releasing the same when pressed. The spongy mop pieces are provided in a manner such that during a rotation of the mopping member, the mop pieces are pressed on the floor and/or wall-wall and wall-floor corners. The machine further includes a rotating member for rotating the mopping means; a receptacle for storing and dispensing aqueous cleaning medium to the spongy mop pieces; a pressing member for pressing the spongy mop members to release the liquid held by the said members, and a collector for collecting the liquid released by the spongy mop pieces.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: September 17, 1996
    Assignee: The Scott Fetzer Company
    Inventor: Dwipendra N. Guha
  • Patent number: 5175723
    Abstract: The present invention is directed to a compact disc pickup drive mechanism which eliminates any alignment problems between a drive screw, a drive motor and a supporting frame. The drive mechanism comprises a drive screw having one end rotationally secured to a portion of the supporting frame. The drive screw engages a threaded portion of the pickup carriage so that rotation of the drive screw moves the carriage linearly with respect to the frame. The other end of the drive screw is directly coupled to the shaft of the motor. The shaft of the motor is rotatably supported in the frame. The housing of the motor is not directly connected to the frame so that the drive screw will automatically align with respect to the frame.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: December 29, 1992
    Assignee: Avnet, Inc.
    Inventor: Dwipendra N. Guha
  • Patent number: 4153256
    Abstract: A tonearm system is provided in accordance with the invention in which the tonearm is mechanically maintained in tangential tracking relationship in the groove in a record during the playing thereof, the record being mounted on a rotating turntable. The principle of the mechanical system according to the invention is to provide the tonearm in fixed relationship with a bracket combination capable of pivoting the tonearm horizontally on a vertical axis which bracket in turn is adapted to rotate about a secondary vertical pivotal axis, this axis being in fixed relationship to the axis of the turntable and the record being played.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: May 8, 1979
    Assignee: Avnet, Inc.
    Inventor: Dwipendra N. Guha