Reversible Baffle for Disposer Sink Flange

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Solution Overview

Problem

Conventional food waste disposer baffles face challenges in simultaneously achieving noise reduction, preventing water backup, allowing easy food waste entry, and maintaining effective water flow, often requiring multiple baffle designs for different operational modes and environments.

Innovation Solution

A reversible baffle design with a cylindrical rim and radially inwardly extending pleats, featuring first and second pleat portions with different structural characteristics, allowing the baffle to be oriented in two ways to achieve either sound reducing or high water flow operational modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a conventional baffle with pleats is used to reduce noise by holding water over the baffle opening, then noise transmission is attenuated, but water backup occurs in the sink

Engineering Contradiction:
Improvenoise transmissionVSAvoidwater backup
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The baffle incorporates a flexible membrane that can dynamically change its configuration between a first configuration (holding water for noise reduction) and a second configuration (allowing water passage to prevent backup). The membrane transitions between these states based on operational conditions, enabling the baffle to adaptively resolve the contradiction between noise attenuation and water flow.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If the baffle pleats are made stiff to hold water for noise reduction, then noise is attenuated, but food waste entry becomes difficult

Engineering Contradiction:
Improvenoise transmissionVSAvoidfood waste entry
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The flexible membrane provides dynamic stiffness control - it can be stiff when needed for noise reduction and become compliant to allow food waste passage. This resolves the contradiction by enabling the baffle structure to adapt its mechanical properties based on operational requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The baffle changes its physical state or configuration parameter between different operational modes. The membrane transitions between configurations that alter its effective stiffness and opening size, allowing optimization of both noise reduction and food waste entry under different conditions.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If a single baffle design is used for both noise reduction and high water flow modes, then device complexity is reduced, but the baffle cannot effectively perform both functions simultaneously

Engineering Contradiction:
Improvebaffle design varietyVSAvoidoperational modes
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The baffle is designed as a multi-functional component that can perform both noise reduction and high water flow functions using a single structure. The flexible membrane enables the same baffle to switch between configurations optimized for different operational modes, eliminating the need for multiple specialized baffles while maintaining adaptability.

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

Data Source

PatentUS12312788B2Reversible baffle for disposer system and method of implementing same in a sink flange of a disposer system
Publication Date: 2025.05.27 INSINKERATOR LLC
  • US12312788B2 patent drawing
  • US12312788B2 patent drawing
  • US12312788B2 patent drawing

AI summary

Baffles for disposer systems, as well as disposer systems employing such baffles and methods of implementing and operating such baffles and disposer systems. In at least one example embodiment, a baffle includes a cylindrical rim and a plurality of pleats that are attached to, or integrally formed with, the cylindrical rim. A first face of the baffle includes a first structural characteristic and a second face includes a second structural characteristic. The first and second structural characteristics are of a same type but also are different, whereby due at least in part to the first and second structural characteristics being different from one another, the baffle is capable of being implemented within the disposer system in either of first and second orientations, respectively, so that the disposer system is configured to operate to achieve either of first and second functional objectives, respectively.