Peristaltic pump having a loop-shaped tube path
AssigneeGraymills Corporation
InventorsKenneth Luedtke, Gary Pritchard, Craig J. Shields
Life of this patent
Estimating the term…
Abstract
A peristaltic pump for transferring fluid through a flexible tube having a loop-shaped tube path is provided. The pump includes a motor that drives a pair of rollers in a circular path within a housing. The housing includes identical housing halves that together define an inlet port, an outlet port and the loop-shaped tube path through which the flexible tube is fed.
Claims12
A housing for a peristaltic pump for moving a fluid through a flexible tube, comprising:
- an inlet port, an outlet port, and a loop-shaped tube path within said housing joining said inlet port to said outlet port;
- said loop-shaped tube path including means for orienting said flexible tube to have parallel portions between said inlet port and said outlet port;
- and
- said tube orienting means including a guide block for guiding said flexible tube located in the interior of said housing generally intermediate said inlet port and said outlet port.
A housing for a peristaltic pump for moving a fluid through a flexible tube, comprising:
- an inlet port, an outlet port, and a loop-shaped tube path within said housing joining said inlet port to said outlet port;
- said housing comprising a pair of identical mating housing halves, each housing half including means integrally associated therewith for aligning said housing halves to form said housing.
A peristaltic pump for moving a fluid through a flexible tube, comprising:
- a housing;
- a main drive shaft mounted for rotation within said housing;
- a rotor driven by said main drive shaft within said housing, said rotor having at least one roller shaft attached to said rotor, and including a roller rotatably mounted on said roller shaft;
- wherein said housing comprises:
- an inlet port;
- an outlet port;
- a loop-shaped tube path joining said inlet port to said outlet port and generally surrounding a circular rotational path of said roller;
- said loop-shaped tube path including means for orienting said flexible tube to have parallel portions between said inlet port and said outlet port:
- and
- said tube orienting means including a guide block located in the interior of said housing between said flexible tube and said circular rotational path of said roller at a point generally intermediate said inlet port and said outlet port.
A peristaltic pump for moving a fluid through a flexible tube, comprising:
- a housing;
- a main drive shaft mounted for rotation within said housing;
- a pair of axially spaced rotors driven by said drive shaft;
- a pair of roller shafts disposed between and mounted to each of said rotors at a point radially outwardly of said drive shaft;
- and
- a pair of rollers each rotatably mounted on one of said roller shafts;
- wherein said housing comprises:
- an inlet port;
- an outlet port;
- and
- a loop-shaped tube path joining said inlet port to said outlet port and surrounding a generally circular rotational path of said rollers;
- and wherein said housing includes a guide block located in the interior of said housing between said flexible tube and said circular rotational path of said roller at a point adjacent to overlapping portions of said flexible tube.
Dependencies are inferred from the claim text.