Universal Rough-In Valve Layout for Compact Multi-Valve Plumbing

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Solution Overview

Problem

Existing rough-in valves in plumbing systems often have complex geometries that increase manufacturing costs and require casting, leading to larger footprints and reduced ease of installation and maintenance, while also lacking versatility to accommodate both pressure balance and thermostatic valves efficiently.

Innovation Solution

A universal rough-in valve design featuring a valve chamber with coaxial inlets and outlets, a valve manifold that can receive either a pressure balance or thermostatic valve, and a guide with adjustable thickness for wall coupling, allowing for a simpler, more cost-effective manufacturing process and easier installation by using a straight pathway configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing rough-in valves use complex geometries to accommodate different valve types, then versatility is improved, but device complexity and manufacturing cost increase

Engineering Contradiction:
ImproveversatilityVSAvoidcomplex geometries
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The rough-in valve body is designed with a universal configuration that can accommodate both pressure balance valves and thermostatic valves through the same inlet and outlet ports. The valve chamber and port arrangement are optimized to work with either valve type, eliminating the need for different rough-in valve geometries and reducing overall system complexity.

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

Solution Approach 2:

The system is divided into modular components: a standardized rough-in valve body and separate valve assemblies (pressure balance or thermostatic). This segmentation allows the rough-in valve to maintain simple, consistent geometry while the specific valve functions are contained in replaceable modules, reducing manufacturing complexity.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If existing rough-in valves use complex geometries, then versatility is improved, but manufacturing cost increases

Engineering Contradiction:
ImproveversatilityVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

A single universal rough-in valve design serves multiple functions by accommodating both pressure balance and thermostatic valves, eliminating the need for multiple specialized valve body designs. This universality simplifies manufacturing processes and reduces tooling costs while maintaining versatility.

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

Solution Approach 2:

The design merges the functionality of multiple rough-in valve types into a single unified structure with standardized ports and chamber geometry that can interface with different valve assemblies, consolidating manufacturing requirements and reducing overall system cost.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If existing rough-in valves use complex geometries, then versatility is improved, but footprint increases

Engineering Contradiction:
ImproveversatilityVSAvoidfootprint
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The universal rough-in valve employs a compact valve chamber design with optimally positioned inlet and outlet ports that minimizes the overall footprint while maintaining the ability to accommodate both pressure balance and thermostatic valve assemblies, reducing the space required in the wall cavity.

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

4Adaptability or versatility

If existing rough-in valves use complex geometries, then versatility is improved, but ease of installation and maintenance deteriorates

Engineering Contradiction:
ImproveversatilityVSAvoidease of installation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system separates the rough-in valve body from the specific valve assemblies, creating modular units that can be independently installed and replaced. This segmentation simplifies installation procedures and maintenance operations, as the valve assemblies can be accessed and replaced without replacing the entire rough-in valve structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The standardized rough-in valve design with consistent port locations and chamber geometry facilitates easier installation by allowing the same rough-in valve to work with different valve types, reducing the skill level and time required for installation and maintenance operations.

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

Data Source

PatentUS11203856B2Universal rough-in valve
Publication Date: 2021.12.21 AS AMERICA INC
  • US11203856B2 patent drawing
  • US11203856B2 patent drawing
  • US11203856B2 patent drawing

AI summary

A universal rough-in valve (20) includes a valve chamber (34) configured to receive a valve manifold (72). The universal rough-in valve includes a first valve inlet (22) configured to provide a pathway for fluid from a first supply line to the valve chamber and a second valve inlet (24) configured to provide a pathway for fluid from a second supply line to the valve chamber. The universal rough-in valve includes a first valve outlet (29) configured to provide a pathway for fluid from the valve chamber to a first outlet line, and a valve manifold (72) coupled to the valve chamber.