US 12,434,981 B2 · Continued power for grinder pumps based on elevated load

Abstract

A hardware (e.g., a process and/or circuitry) and/or software-based controller for septic system grinder or chopper units monitors load to the unit. As the unit encounters debris, electrical and mechanical load on the unit increases. In some cases, a signal to stop the unit from grinding/chopping (including but not limited to a signal based a waste-water level) is received while the unit is under the increased load. The controller may override the stop signal and continue sending power to the unit to clear the unit from debris causing increased load. The override may cease when it is determined that the debris has been cleared, such as when it is determined that the increased mechanical and/or electrical load on the unit has decreased or returned to a target load, allowing the unit to stop. The unit may include self-configuration functionality, determining thresholds for signaling override, target load, etc.

Claims20

Dependent claims

A system, comprising:

one or more components configured to:
control power to a grinder pump, wherein control comprises:
subsequent to receipt of a high water start signal,
send a signal to send power to the grinder pump;
subsequent to receipt of a low water power off signal indicating power should be discontinued:
determine that a load on the pump is above an override threshold;
and
override, based on the determination, the low water power off signal, wherein override causes the power to continue to the grinder pump despite receipt of the low water power off signal.

5 more elements

Dependencies are inferred from the claim text.

Continued power for grinder pumps based on elevated load

Life of this patent

Continued power for grinder pumps based on elevated load

Life of this patent

Abstract

Claims20