Daniel Svoboda
Engineers at Dudley St, Denver, CO

4634330, Jan 6, 1987

Oct 6, 1980

6/194133

Daniel Svoboda - Denver CO
Steven Hordinski - Denver CO
Dale R. Severns - Broomfield CO
Howard W. Hooker - Arvada CO

Union Oil Company of California - Los Angeles CA

F23K 300

414198

A solids feeder for transporting particulate solids from an elevated solids feed reservoir and introducing the solids upwardly into the bottom of a solids upflow vessel. The feeder includes a horizontally reciprocatable carriage supporting a vertical feed cylinder fitted with a vertically reciprocatable piston. The piston is vertically reciprocated by a hydraulic cylinder suspended from the carriage. The carriage is reciprocated between a first carriage position wherein the feed cylinder is aligned with a feed chute communicating with the feed reservoir and a second carriage position wherein the feed cylinder is aligned with a bottom solids inlet of the upflow vessel. A tram-like suspension system movably supports the carriage from elevated structural rails. Optionally, the structure of the carriage is adapted to controllably vertically yield during the pumping stroke so as to seat the bottom of the piston actuating hydraulic cylinder on a wedge block mounted on the foundation.

4592264, Jun 3, 1986

May 29, 1984

6/614553

Daniel Svoboda - Denver CO

G10D 102

84274

There is disclosed a bass fiddle of the violin family of instruments having a sound box made from blown fiberglass reinforced resins and wood top plate. An integrating tonal arm is located in the upper chamber of the sound box and eliminates overtones in the upper chamber and produces uniform tonal retention of all strings in all positions.