Patents by Inventor Prabhat K. Sinha

Prabhat K. Sinha 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: 7178767
    Abstract: A multi-leg equipment stand has a unitary user interface. All legs can be adjusted simultaneously, or, an individual leg can be adjusted, by distinct motions of the interface. A collar is near to an equipment support shoulder. Rotation around a vertical axis releases all legs. For a tripod, tilting the collar in one direction releases only one of three legs. The tilt may be toward the leg to be moved. The legs have adjacent, telescoping components. A control rod extends from the collar, through the hollow interior of the upper component, to a jam-plate, at the lower end of the upper component. The plate jams between an inside of the lower component, and an inside of the upper component. The rod passes through the jam-plate. Pushing the rod tilts the jam-plate, freeing it from jamming. A spring returns it to jamming if released. For each leg, the collar underside has a two level cam recess. The rods each have a cam follower surface at their shoulder end.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: February 20, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Jasper L. Steyn, Daniel K. Moon, Brian B. Conaty, Thomas A. Greenwood, Ingrid Shao-Ying Huang, Philip G. Kong, James I. Meyer, Prabhat K. Sinha
  • Publication number: 20040206879
    Abstract: A multi-leg equipment stand has a unitary user interface. All legs can be adjusted simultaneously, or, an individual leg can be adjusted, by distinct motions of the interface. A collar is near to an equipment support shoulder. Rotation around a vertical axis releases all legs. For a tripod, tilting the collar in one direction releases only one of three legs. The tilt may be toward the leg to be moved. The legs have adjacent, telescoping components. A control rod extends from the collar, through the hollow interior of the upper component, to a jam-plate, at the lower end of the upper component. The plate jams between an inside of the lower component, and an inside of the upper component. The rod passes through the jam-plate. Pushing the rod tilts the jam-plate, freeing it from jamming. A spring returns it to jamming if released. For each leg, the collar underside has a two level cam recess. The rods each have a cam follower surface at their shoulder end.
    Type: Application
    Filed: June 4, 2004
    Publication date: October 21, 2004
    Inventors: Jasper L Steyn, Daniel K Moon, Brian B Conaty, Thomas A Greenwood, Ingrid Shao-ying Huang, Philip G Kong, James I Meyer, Prabhat K Sinha