Multi-reagent peristaltic pump dispensing
AssigneeHach Company
InventorBrian J. Dreiling
Life of this patent
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Abstract
An embodiment provides a method for moving precise volumes of fluid using a linear peristaltic pump, including: operating the pump for a first portion of a pump cycle, wherein the operating the first portion dispenses a first reagent, wherein the pump comprises a motor and a cam; pausing the pump for a period of time; and operating the pump for a second portion of the pump cycle, wherein the operating the second portion dispenses a second reagent. Other aspects are described and claimed.
Claims20
A method for moving precise volumes of fluid using a linear peristaltic pump, comprising:
- operating the pump for a first portion of a single rotation of a pump cycle of a cam, wherein the operating the first portion dispenses a first reagent delivered in a first delivery tube contacted by a first set of lobes on the cam, wherein the pump comprises a motor and the cam;
- pausing the pump for a period of time;
- and
- operating the pump for a second portion of the single rotation of the pump cycle of the cam, wherein the operating the second portion dispenses a second reagent contained in a second delivery tube contacted by a second set of lobes on the cam, wherein the sum of the first and second portions is selected from the group consisting of:
- a full rotation of the cam and less than a full rotation of the cam.
A device for delivering a precise volume of fluid using linear peristaltic pump, comprising:
- a motor;
- a cam;
- a motor controller;
- a processor;
- a memory device that stores instructions that, when executed by the processor, causes the system to:
- operate the pump, using the motor controller, for a first portion of a single rotation of a pump cycle of a cam, wherein the operating the first portion dispenses a first reagent delivered in a first delivery tube contacted by a first set of lobes on the cam;
- pause the pump, using the motor controller, for a period of time;
- and
- operate the pump, using the motor controller, for a second portion of the single rotation of the pump cycle of the cam, wherein the operating the second portion dispenses a second reagent contained in a second delivery tube contacted by a second set of lobes on the cam, wherein the sum of the first and second portions is selected from the group consisting of:
- a full rotation of the cam and less than a full rotation of the cam.
A non-transitory computer-readable storage device that stores executable code that, when executed by one or more processors, causes the one or more processors:
- control a linear peristaltic pump to dispense a first reagent delivered in a first delivery tube contacted by a first set of lobes on a cam for a first portion of a single rotation of a pump cycle of the cam;
- pause the linear peristaltic pump for a period of time;
- and
- control the linear peristaltic pump to dispense a second reagent contained in a second delivery tube contacted by a second set of lobes on the cam for a second portion of the single rotation of the pump cycle of the cam, wherein the sum of the first and second portions is selected from the group consisting of:
- a full rotation of the cam and less than a full rotation of the cam.
Dependencies are inferred from the claim text.