Portable Water Pump Chassis With Vibration Isolation for Stealth Use

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Solution Overview

Problem

Existing fluid pumps, such as those used in irrigation and water supply systems, are noisy and visually conspicuous, posing challenges in contested environments where stealth is crucial.

Innovation Solution

A portable water pump assembly featuring a chassis with vibration isolators, a power supply with overcurrent protection, and a Powerpole compatible electrical connector, designed to dampen vibrations and minimize noise while ensuring reliable operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If a conventional fluid pump is used, then water pumping function is achieved, but noise and vibration increase making the device conspicuous

Engineering Contradiction:
Improvenoise and vibrationVSAvoidstealth operation
Core Design Contradiction:
Object-generated harmful factorsVSReliability

Solution Approach 1:

The patent introduces vibration isolators as intermediary elements between the pump motor and the housing structure. These isolators act as mediators that decouple the vibration source from the housing, preventing vibration transmission while maintaining structural integrity. This resolves the contradiction by allowing the pump to function reliably while minimizing noise and vibration that would compromise stealth operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces rigid mechanical mounting with elastomeric vibration isolators. Instead of direct mechanical coupling that transmits vibration, the system uses elastomeric materials that provide isolation. This substitution eliminates the harmful vibration transmission path while preserving the pump's water pumping function, thereby achieving both reliability and stealth operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Object-generated harmful factors

If vibration isolators are added to dampen pump vibrations, then noise reduction is achieved, but device complexity increases

Engineering Contradiction:
ImprovevibrationVSAvoidchassis structure
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges the vibration isolation function with the existing chassis structure by integrating vibration isolators into the housing design. Rather than adding separate, complex vibration damping systems, the isolators are incorporated as part of the mounting structure, achieving vibration reduction while minimizing increases in overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the physical parameters of the mounting interface by introducing elastomeric materials with specific damping properties. This parameter change allows the structure to passively dampen vibrations without requiring active control systems or complex mechanisms, thereby reducing noise while keeping the added complexity minimal.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If overcurrent protection circuitry is implemented, then pump reliability is improved, but power supply complexity increases

Engineering Contradiction:
Improvepump operationVSAvoidpower supply system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a self-service protection mechanism where the power supply circuit automatically detects and responds to overcurrent conditions. The system includes overcurrent protection circuitry that autonomously protects the pump motor without requiring external monitoring or manual intervention, thereby improving reliability while adding only minimal complexity to the power supply system.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent incorporates preliminary protective measures in the power supply design, including overcurrent protection circuitry and inrush current limiting. These protective actions are built into the system beforehand, preventing damage before it occurs. This preliminary action approach ensures reliable pump operation while maintaining relatively simple power supply architecture through preventive design.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The assembly effectively reduces noise and vibration, providing a discreet and reliable water pumping solution suitable for covert operations.

Implementation Method 1

a chassis configured to dampen vibrations generated by the water pump during operation

Methodology Applied
Scientific EffectVibration isolation: Damping

Implementation Method 2

The inrush current limiter is configured to prevent an EMF surge from damaging the removable fuse

Methodology Applied
Scientific EffectElectromagnetic field (EMF) surge protection: Electrical Resistance

Data Source

PatentUS12473921B2Portable water pump assembly
Publication Date: 2025.11.18 CANA PROVISIONS LLC
  • US12473921B2 patent drawing
  • US12473921B2 patent drawing
  • US12473921B2 patent drawing

AI summary

A water pump assembly comprises an electric water pump, a suction-intake arm assembly, a discharge arm assembly, and a chassis configured to dampen vibrations generated by the electric water pump during operation. The electric water pump includes a pump motor, an inlet port, and an outlet port. The suction-intake arm assembly is connected to the inlet port, and the discharge arm assembly is connected to the outlet port. The chassis includes a baseboard and a yoke. The baseboard includes one or more vibration isolators on an underside thereof. The yoke includes a first opening configured to fit about a portion of the electric water pump, a second opening configured to support one end of the suction-intake arm assembly, and a third opening configured to support one end of the discharge arm assembly.