Patents by Inventor G. Franklin Grouwinkel

G. Franklin Grouwinkel 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: 4118930
    Abstract: A filter-cooler is provided for use with a rocket motor to cool and filter ighly aluminized hot gases from around 5800.degree. F. to around 2000.degree. F. The cooled and filtered gases are then usable, for example, in thrust vector control or other mechanisms associated with the rocket. In the present system the cooler section is placed ahead of the filter section so that alumina present in the gases begins to solidify ahead of the filter and thus may be more efficiently removed. The filter section comprises a plurality of graphite vortex producing geometries. The vortex direction of the baffles is reversed in succeeding baffles so that the net effect of the high rotational velocities of each vortex is used to separate the particulate contaminates from the gas stream by momentum.
    Type: Grant
    Filed: June 14, 1974
    Date of Patent: October 10, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael D. Jacobson, G. Franklin Grouwinkel