Patents by Inventor Harold E. Carver

Harold E. Carver 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).

  • Dual cylinder reciprocating solids feeder
    Patent number: 4037736
    Abstract: A solids feeder for transporting particulated solids from a solids feed supply into the bottom of a solids upflow vessel. The feeder includes a pair of solids feed chutes, each terminating in a bottom outlet located in essentially the same horizontal plane as the bottom solids inlet of the solids upflow vessel and on opposite sides of the bottom solids inlet. A pair of solids feed cylinders provided with hydraulically actuated pistons are vertically mounted in spaced relationship on a reciprocating carriage positioned below the solids upflow vessel. The carriage is reciprocated between two stationary positions in which the cylinders alternately fill with particulated solids and discharge the solids into the bottom of the solids upflow vessel.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: July 26, 1977
    Assignee: Union Oil Company of California
    Inventors: John R. Pownall, Harold E. Carver