Patents Assigned to Thomas N. DePew
  • Patent number: 4255129
    Abstract: A method for processing various organic materials such as lignocellulosics or biomass into more useful states, such as charcoal, carbon black, and coke, and other processed products while producing useful off-gases, includes feeding aggregate pieces of the material to a vertically extending heating chamber and, preferably, closing the chamber to air to control oxygen therein. The pieces are conveyed upwardly through the chamber in a predetermined time by spiral vibratory conveyor. The chamber is heated to a preselected temperature sufficient for gaseous conversion of volatile hydrocarbon constituents of the material. Resultant off-gases are removed from the chamber for further use such as burning thereof for heating the chamber or condensing volatiles, etc.Apparatus for carrying out the method includes preferably first and second such chambers, there being continuous spiral vibrator tray in each chamber carried by a central, vertical support column.
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: March 10, 1981
    Assignee: Thomas N. DePew
    Inventors: Roger D. Reed, Elmer E. Reed
  • Patent number: 4002126
    Abstract: A pallet construction for use with detachable tiering frames, which pallet is fabricated of metal having parallel stringers with a plurality of longitudinally spaced-apart deck members extending transversely therebetween which latter are fixed, as by welding, to said stringers. Said pallet may be adapted for use with tiering frames of the center post or corner post type by means of a unique support member fixed, in the former case, to the intermediate zone of the under face of the stringers and end deck members, and in the latter case to the ends of said stringers. Said supports each incorporate a surface bearing portion for engaging a portion of the underlying tiering frame; there being an adjacent inclined portion which serves as a detent to inhibit shifting of the pallet as so supported while also acting cammingly to assist in positioning of such pallet. Each support has a base portion for engaging a support surface.
    Type: Grant
    Filed: November 11, 1974
    Date of Patent: January 11, 1977
    Assignee: SAID Thomas N. DePew, by said Ferris Andrew Bell
    Inventors: Ferris Andrew Bell, Thomas N. DePew