Skip to Content
Find More Like This
Return to Search

Screw-fed pump system

United States Patent

November 25, 2014
View the Complete Patent at the US Patent & Trademark Office
A pump system includes a pump that includes a first belt and a second belt that are spaced apart from each other to provide generally straight sides of a passage there between. There is an inlet at one end of the passage and an outlet at an opposite end of the passage, with a passage length that extends between the inlet and the outlet. The passage defines a gap distance in a width direction between the straight sides at the passage inlet. A hopper includes an interior space that terminates at a mouth at the passage inlet. At least one screw is located within the interior space of the hopper and includes a screw diameter in the width direction that is less than or equal to the gap distance.
Sprouse; Kenneth M. (Canoga Park, CA)
Aerojet Rocketdyne of DE, Inc. (Canoga Park, CA)
13/ 171,904
June 29, 2011
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under contract number DE-FC26-04NT42237 awarded by U.S. Department of Energy. The government has certain rights in the invention.