Patents by Inventor John R. Rosenau

John R. Rosenau 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).

  • Fluidized bed reactor and distribution system
    Patent number: 5330652
    Abstract: This invention provides a fluidized bed reactor with improved method and apparatus for inhibiting and clearing clogging of the fluid distribution network in such reactor. In particular, at least one channel or reservoir of fluid is provided over at least a selected portion of the distribution network, with fluid from such column/reserve being released to maintain flow and pressure in the distribution network as the media bed is defluidized. For the preferred embodiment, the fluid column is (a) a feed pipe connecting a fluid inlet which is above the reactor fluid level to the distribution network; and (b) a plurality of risers which, for the preferred embodiment, extend from the end of each lateral tube of the distribution network. A vacuum breaker is provided for each fluid column to permit fluid to flow from the column into the network when pressure is removed.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: July 19, 1994
    Assignee: Aquafuture, Inc.
    Inventors: Joshua N. Goldman, John R. Rosenau
  • Preparation of dairy-based cheese food
    Patent number: 4066800
    Abstract: A dairy based cheese food is prepared by a process involving heating milk to pasteurize and denature whey proteins, acidifying the milk to form curd and whey, separating the curd from the whey, neutralizing the curd by adding a base, mixing an acid with the neutralized curd to reacidify, mixing an additive with the curd, manipulating the curd such as by extrusion, and packaging the curd.
    Type: Grant
    Filed: November 30, 1973
    Date of Patent: January 3, 1978
    Assignee: The Regents of the University of Minnesota
    Inventors: John R. Rosenau, John C. Anderson
  • Fluidized bed reactor and distribution system
    Patent number: RE36660
    Abstract: This invention provides a fluidized bed reactor with improved method and apparatus for inhibiting and clearing clogging of the fluid distribution network in such reactor. In particular, at least one channel or reservoir of fluid is provided over at least a selected portion of the distribution network, with fluid from such column/reserve being released to maintain flow and pressure in the distribution network as the media bed is defluidized. For the preferred embodiment, the fluid column is (a) a feed pipe connecting a fluid inlet which is above the reactor fluid level to the distribution network; and (b) a plurality of risers which, for the preferred embodiment, extend from the end of each lateral tube of the distribution network. A vacuum breaker is provided for each fluid column to permit fluid to flow from the column into the network when pressure is removed.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: April 18, 2000
    Assignee: AquaFuture, Inc.
    Inventors: Joshua N. Goldman, John R. Rosenau