Patents by Inventor James Alden Van Vechten

James Alden Van Vechten 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).

  • Publication number: 20080286165
    Abstract: A method and apparatus for generating energy from a composition containing guanidine and a method for providing the composition containing guanidine. The apparatus includes a container such as tank (1) for providing the composition, and a container such as tank (2) for providing water. The composition is delivered from tank (1) to a container such as reactor (3) for reacting the guadinine composition with water, supplied from tank (2), to form ammonia. The apparatus may also include buffer tank (4) for storing the ammonia produced by the reactor.
    Type: Application
    Filed: May 3, 2005
    Publication date: November 20, 2008
    Inventors: Robert K. Graupner, J. Dustin Hultine, James Alden Van Vechten
  • Patent number: 4122407
    Abstract: Practice of this disclosure reduces the concentration of intrinsic defects heretofore grown into semiconducting materials. Thereby, the operational lifetime is increased of heterostructure junction light emitting or responding or modulating devices which are fabricated in accordance with principles of the disclosure. Illustratively, the operational lifetime of a heterostructure junction laser device thus fabricated is extended. This improvement in operational lifetime of the device is attained by constraining growth, e.g., liquid phase epitaxial growth, of the several layers of semiconducting materials which form such a device to proceed only upon unreconstructed surface layers. Illustratively, such an unreconstructed surface is any one of the set of (311) surfaces of a crystalline semiconductor having diamond, zinc-blende, or chalcopyrite structure.
    Type: Grant
    Filed: April 6, 1976
    Date of Patent: October 24, 1978
    Assignee: International Business Machines Corporation
    Inventor: James Alden Van Vechten
  • Patent number: 4117497
    Abstract: This disclosure obtains printing and displaying of information stored as a pattern of orifices in a colored liquid film established on the interstices of a screen-mesh member. A laser beam is used to effect removal of the film at each selected interstice either by puncturing the film thereat or vaporizing a portion thereof so that reactive surface tension force displaces the remainder of the film. The screen is moved in coordination with the writing thereon of the information pattern so that the area upon which the information is established may be presented sequentially to a displaying station and to a printing station. At the displaying station, light is either transmitted through the orifices established in the colored liquid film or is reflected from the film left in the unwritten interstices onto a display screen as a pattern of information either as a positive or a negative image of the actual information content established in the screen-mesh.
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: September 26, 1978
    Assignee: International Business Machines Corporation
    Inventors: James Cleary McGroddy, James Alden Van Vechten
  • Patent number: 3937209
    Abstract: A heat storage device of simple design and compact dimensions is disclosed. The device uses a heat storage medium which contracts upon melting and which has a melting point high enough to be of use in connection with conventional, nuclear, and solar power plants.
    Type: Grant
    Filed: July 12, 1974
    Date of Patent: February 10, 1976
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: James Alden Van Vechten