Patents by Inventor Daniel J. Rosewall

Daniel J. Rosewall 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).

  • Apparatus for producing solid carbon dioxide
    Patent number: 6244069
    Abstract: An apparatus (10) for producing carbon dioxide blocks is disclosed having a formation unit (14) which forms carbon dioxide blocks from carbon dioxide pellets conveyed to the formation unit (14). The formation unit includes a cylindrical hopper (17) having a floor (18) with a pair of openings (19) therein, a reciprocating sizing plate (23) positioned directly below the hopper (17) having a pair of sizing chambers (33) therein, a reciprocating forming plate (25) positioned below the sizing plate having a pair of forming chamber (38) therein, a flooring plate (26) positioned below the forming plate, and a conveying trough (27) positioned below the flooring plate. Furthermore, the unit also includes a hydraulic forming press (29) and a hydraulic ejection press (30).
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: June 12, 2001
    Assignee: CO2 Air Equipment, Inc.
    Inventors: Charles M. Hyde, Jr., N. Allen Wood, Daniel J. Rosewall