Peristaltic pump construction

Claim 2

In a peristaltic pump assembly of the type utilizing a housing having a circular recess and rotor to rotate in said recess carrying rollers to revolve adjacent a circular wall of said recess, that improvement which comprises: a. a rotor formed as a one-piece integral unit having opposed radial arms, and wings extending circumferentially from the distal end of said arms, b. pressure rollers mounted on each said arms to rotate on an axis parallel to the axis of rotation of said rotor, and c. guide rollers on said wings mounted to extend radially of said rotor to guide a peristaltic tube along said circular wall.

Claim 3

In a peristaltic pump assembly of the type utilizing a housing having a circular recess and rotor to rotate in said recess carrying rollers to revolve adjacent a circular wall of said recess, that improvement which comprises: a. a rotor formed as a one-piece integral unit having opposed radial arms, and wings extending circumferentially from the distal end of said arms, said arms and wings being recessed between the axial ends to provide spaced mounting plates at the distal ends of said arms and axially spaced wing projections at said distal ends, b. a pressure roller mounted between said plates on each arm to rotate on an axis parallel to the axis of rotation of said rotor, and c. guide rollers on each said wing projections mounted to extend radially of said rotor to provide spaced guides for a peristaltic tube lying along said circular wall.

Claim 4

In a peristaltic pump assembly of the type utilizing a housing having a circular recess and rotor to rotate in said recess carrying rollers to revolve adjacent a circular wall of said recess, that improvement which comprises: a. a rotor formed as a one-piece integral unit having opposed radial arms, and wings extending circumferentially from the distal end of said arms, said arms and wings being recessed between the axial ends to provide spaced mounting plates at the distal ends of said arms and axially spaced wing projections at said distal ends, b. a pressure roller mounted between said plates on each arm to rotate on an axis parallel to the axis of rotation of said rotor, and c. guide rollers on each said wing projections mounted to extend radially of said rotor to provide spaced guides for a peristaltic tube lying along said circular wall.

Claim 5

A peristaltic pump as defined in claim 1 in which said rotor includes an integral projection extending radially of said circular housing recess at 90* to said radial arms formed as a clevis, and a crank pivotally mounted in said clevis movable to a crank position over said rotor and to a storage position within said rotor.

Claim 6

A peristaltic pump as defined in claim 3 in which a power shaft to drive said rotor extends through said rotor, and means on said shaft and means on said crank arranged for mutual engagement wherein rotating motion of said shaft will be imparted to said rotor through said crank.

Claim 7

A peristaltic pump as defined in claim 3 in which a power shaft to drive said rotor extends through said rotor, and has a diametrical notch through the end thereof, and means on said crank movable into said notch when said crank is in a storage position to impart a drive motion from said shaft to said rotor.

Claim 8

In a peristaltic pump assembly of the type utilizing a housing having a circular recess and rotor to rotate in said recess carrying rollers to revolve adjacent a circular wall of said recess, that improvement which comprises: a. a rotor body having an axis of rotation and formed of a one-piece integral unit having opposed arms extending radially from said axis, and wings extending circumferentially in each direction from the distal end of said arms, and a radial clevis extension between said arms on one side thereof, said arms and wings having a recess therein between the ends of the rotor body, b. pressure rollers mounted on each said arms in said recess to rotate on an axis parallel to the axis of rotation of said rotor, and c. guide rollers on the respective remnants of said wings above and below said recess mounted to extend radially of said rotor axis to guide a peristaltic tube along said circular wall fore and aft of said pressure rollers.

Claim 9

In a peristaltic pump assembly of the type utilizing a housing having a circular recess and rotor to rotate in said recess carrying rollers to revolve adjacent a circular wall of said recess, that improvement which comprises: a. a rotor body having an axis of rotation and formed of a one-piece integral unit having opposed arms extending radially from said axis, and wings extending circumferentially in each direction from the distal end of said arms, and a radial clevis extension between said arms on one side thereof, said arms and wings having a recess therein between the ends of the rotor body, b. pressure rollers mounted on each said arms in said recess to rotate on an axis parallel to the axis of rotation of said rotor, and c. guide rollers on the respective remnants of said wings above and below said recess mounted to extend radially of said rotor axis to guide a peristaltic tube along said circular wall fore and aft of said pressure rollers.

Claim 10

A pump assembly as defined in claim 6 in which a handle element is pivotally mounted at one end in said radial clevis extension movable from a storage position overlying the center of said rotor body to an operating position above and radial of said rotor, and a power drive shaft extending through a recess on the axis of said rotor when the handle element is in said storage position body haVing a notch in an exposed end wherein a portion of said handle element can nest in said notch to effect a drive relationship between said shaft and said rotor.