Pumps – Expansible chamber type – Elongated flexible chamber wall progressively deformed
Patent
1985-03-08
1986-08-05
Gluck, Richard E.
Pumps
Expansible chamber type
Elongated flexible chamber wall progressively deformed
F04B 4312
Patent
active
046040382
ABSTRACT:
A peristaltic pump (A) is disclosed which includes a roller assembly (D) having a plurality of pump rollers (12) carried thereon. As the roller assembly is rotated by a drive gear (66) the pump rollers (12) are driven in reverse rotation by means of a stationary ring gear (70) and pump roller gears (72). An upper pressure shoe plate (B) and a lower pressure shoe plate (C) are positioned above sets of flexible tubing (E) which interlace with each other at a back side (25) of a frame. The tubing (14, 16) is sandwiched between the pressure shoe plates and the pump rollers (12). A highly compact pump is provided having twice as many fluid channel lines as is conventional. The peristaltic pump device may be remotely operated by means of a rotary actuator (100) which rotates a driving hub (86, 88) to move the shoe plates (B and C) by means of eccentrically mounted links (89, 90). The pressure shoe plates may be moved by the rotary actuator to a loaded position in which the fluid lines are pinched by the pump rollers and fluid is pumped to an unloaded position in which the fluid lines are maintained in an undeformed, uncrimped configuration so that no creases or crimps are set into the fluid lines during periods of prolonged non-use.
REFERENCES:
patent: 922205 (1909-05-01), Still
patent: 2696173 (1954-12-01), Jensen
patent: 3101674 (1963-08-01), Weiskopf et al.
patent: 3358609 (1967-12-01), Worth et al.
patent: 3723023 (1973-03-01), Gelfard
patent: 4333088 (1982-06-01), Diggins
Beumer Joseph H.
Gluck Richard E.
Manning John R.
The United States of America as represented by the Administrator
Wofford, Jr. Leon D.
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