Pump
First Claim
1. A pump comprising, an elastic hose having open inlet and outlet ends, an elongated bar member mounted within said hose and extending substantially the full length thereof, hose actuator means operable to impart to the portion of said hose between said ends a progressive transverse undulating movement about said bar, said actuator means including movable means engaging and deflecting said hose for providing at all times a movable seal between said hose and said bar on opposite sides with said hose maintaining a substantially uniform cross section along its length during said movement, said hose cooperating with said bar to at least substantially seal from one another the spaces within said hose on said opposite sides of said bar.
0 Assignments
0 Petitions
Accused Products
Abstract
A pump having an elastic hose fixed at its two ends and a hose actuator for conveying fluid from the hose inlet to the hose outlet. The hose actuator comprises means for imparting to the free portion of the hose such a progressive transverse undulating movement about an element immovably provided within the hose along the entire length thereof, while sealing or approximately sealing the hose at two opposite points, that the hose at all times and with constant cross section engages or substantially engages the element at other points along the hose for closing said hose.
55 Citations
10 Claims
- 1. A pump comprising, an elastic hose having open inlet and outlet ends, an elongated bar member mounted within said hose and extending substantially the full length thereof, hose actuator means operable to impart to the portion of said hose between said ends a progressive transverse undulating movement about said bar, said actuator means including movable means engaging and deflecting said hose for providing at all times a movable seal between said hose and said bar on opposite sides with said hose maintaining a substantially uniform cross section along its length during said movement, said hose cooperating with said bar to at least substantially seal from one another the spaces within said hose on said opposite sides of said bar.
Specification