Sealed Oil Drain Chute for Splash-Free Plug Removal

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing fluid draining systems are complex, inefficient, and often result in fluid splashing and contamination during the removal process, as they require multiple steps, complex structures, or special valve apparatuses that are not universally applicable.

Innovation Solution

A fluid draining system with a transparent, injection-molded plastic main body featuring a fluid entrance opening and a downward sloping chute, combined with a tool connector assembly that includes an elastic seal and retainer to securely accommodate a socket extension for operating a drain plug, allowing for easy and sanitary fluid removal using a ratchet wrench.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex device structure with multiple components is used to drain fluid, then the fluid draining capability is improved, but the device complexity increases

Engineering Contradiction:
Improvefluid draining capabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the funnel body, drain plug, and fluid collection reservoir into a single integrated device. The funnel serves as both the collection structure and the container wall, while the drain plug is built into the reservoir bottom, eliminating the need for separate components and reducing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The funnel body serves multiple functions: it collects fluid, contains the reservoir, and provides structural support. The drain plug simultaneously acts as a closure mechanism and a controlled discharge point. This multi-functionality reduces the number of separate components needed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If a sealed joint to the fluid reservoir is provided, then the fluid-tightness is improved, but the manufacturing precision requirement increases due to the need for a level, clean surface

Engineering Contradiction:
Improvefluid-tightnessVSAvoidsurface flatness
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent uses a flexible gasket made of elastomeric material to create the seal between the funnel body and reservoir. This flexible membrane can conform to slight surface irregularities, providing fluid-tight sealing without requiring perfectly flat or clean mating surfaces.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The sealing approach changes from rigid mechanical sealing (requiring precise surface geometry) to flexible elastomeric sealing (tolerant of surface variations). This parameter change in sealing mechanism material properties allows sealing on less precise surfaces.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If the wrench extension occupies a large portion of the housing opening, then the tool operation capability is improved, but the space for fluid draining is reduced

Engineering Contradiction:
Improvetool operation capabilityVSAvoidfluid draining space
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The drain opening is positioned at the bottom of the reservoir, perpendicular to the plane of the wrench extension. This spatial arrangement in a different dimension allows the wrench extension to occupy the upper opening area while the drain opening provides unobstructed fluid flow path at the bottom.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The opening structure is segmented into two functional zones: the upper housing opening for tool access and the lower drain opening for fluid discharge. This segmentation allows each opening to be optimized for its specific function without interfering with the other.

Inventive Principle:
Principle #1Segmentation

4Reliability

If a two-step process is used to loosen and then remove the drain plug, then the fluid control is improved, but the operation time increases

Engineering Contradiction:
Improvefluid controlVSAvoidoperation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The funnel and reservoir are combined into a single pre-assembled unit with the drain plug already in place. This allows the operator to attach the entire assembly to the fluid source and immediately begin draining, eliminating the need for separate preparation steps and reducing total operation time while maintaining fluid control.

Inventive Principle:
Principle #5Merging (Combining)

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 system enables safe, efficient, and sanitary removal of fluids by directing fluid flow into a collection container, minimizing splashing and contamination, and allowing for easy operation with readily available tools, while being cost-effective and easy to produce.

Implementation Method 1

at least one elastic seal mounted at the bore and configured to block fluid communication between the first end and the second end of the bore

Methodology Applied
Scientific EffectElastic seal: Elasticity

Implementation Method 2

a chute extending from and in fluid communication with the interior space to direct fluid flow out of the main body to an open end of the chute

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS12181100B1Fluid draining system
Publication Date: 2024.12.31 CRATER BRUCE
  • US12181100B1 patent drawing
  • US12181100B1 patent drawing
  • US12181100B1 patent drawing

AI summary

A fluid draining system, for serving as an aid in emptying waste oil or other fluid from a fluid container to a fluid collection container, includes a main body, which may be made of injection molded plastic and may be at least partially transparent. The main body may have an opening for entrance of fluid from the fluid container, and a lower downward sloping chute for the exiting of the fluid towards the fluid collection container. A sleeve with one or more elastic seals may be provided at the main body to fluid-tightly yet operatively accommodate a socket extension or other tool for operating a drain plug of the fluid container. The fluid draining system may provide a unique hands free, confined fluid flow channel through which fluid will flow while draining from the fluid container, such as from an engine oil pan, crankcase, or transmission sump.