|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||417/393; 417/398; 417/399; 417/401; 417/403; 417/404|
|우선권정보||KR-0023928 (1996-08-08); KR-0021451 (1997-08-04)|
|발명자 / 주소|
|인용정보||피인용 횟수 : 8 인용 특허 : 6|
Two cylindrical pump cylinders are mounted end-to-end. A first piston is placed in the first cylinder, a second piston is placed in the second cylinder, and the pistons are interconnected. In one embodiment compressed air alternately drives the first piston in either direction, causing the interconnected second piston to draw and pump high viscosity liquid in the second cylinder through the use of check valves. In another embodiment compressed air is alternately injected into one side of the first piston and one side of the second piston, thus alternatel...
1. A pump comprising:a first cylinder, a second cylinder, and an intermediate block sandwiched between respective ends of the first and second cylinders, wherein the first and second cylinders are axially aligned and are approximately the same size; a top block positioned against an end of the first cylinder opposite the intermediate block, and a bottom block positioned against an end of the second cylinder opposite the intermediate block; a first piston positioned in the first cylinder and a second piston positioned in the second cylinder, wherein the f...