1. His development of the first self-priming rotary pump revolutionized wellpoint dewatering methods. 2. The company produced sewing machines, cistern pumps, and rotary pumps . 3. As with other forms of rotary pumps , the clearance between moving parts and the pump's casing is minimal. 4. The only type that worked for MEMS, prior to introducing Gad-el-Hak s rotary pump , was of the reciprocating variety. 5. He patented a rotary pump and served on the board of directors for the Limacon Pump Company in Dallas. 6. Rotary pumps can handle solids ( e . g ., cherries and olives ), slurries, pastes, and a variety of liquids.7. Many historians believe that Archimedes was not the inventor of the Archimedes Screw, a rotary pump commonly used in Egypt for irrigation. 8. The Rexroth Corp . of Bethlehem won a $ 36, 120 contract from the Defense Supply Center in Columbus, Ohio, for rotary pumps . 9. The Rexroth Corp . of Bethlehem won a $ 36, 120 contract from the Defense Construction Supply Center in Columbus, Ohio, for rotary pumps . 10. Rotary pumps are very efficient because they naturally remove air from the lines, eliminating the need to bleed the air from the lines manually.
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