Hydrant Supply Assembly with Compact Drainage System

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Solution Overview

Problem

Existing drain assemblies for self-operating hydrants, such as drinking fountains, are not compact, easily manufacturable, or scalable for use with multiple hydrants, leading to installation challenges and inefficiencies in water management.

Innovation Solution

A drain assembly with a movable piston and reservoir system that allows for efficient drainage of water from supply lines when valves are in the OFF position, using a combination of check and drain valves to prevent backflow and accommodate various numbers of hydrants, with a compact design suitable for underground installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional drain assemblies are used for multiple hydrants, then drainage function is provided, but the assembly becomes large and complex

Engineering Contradiction:
Improvedrainage function for multiple hydrantsVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The drain assembly uses a universal design where a single assembly can accommodate any number of hydrants (1, 2, 3, or more) by simply plugging unused supply line openings. The common reservoir and piston mechanism serve all hydrants simultaneously, eliminating the need for separate drain assemblies for each hydrant and reducing overall system complexity.

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

Solution Approach 2:

Multiple supply lines from different hydrants are merged into a single common reservoir through individual drain valves. The piston mechanism is shared across all hydrants, creating a consolidated drainage system that is more compact and less complex than separate drainage systems for each hydrant.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If traditional drain assemblies are used for multiple hydrants, then drainage function is provided, but installation space requirements increase

Engineering Contradiction:
Improvedrainage function for multiple hydrantsVSAvoidinstallation space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The compact universal design allows a single drain assembly to handle multiple hydrants, significantly reducing the installation space required compared to separate drain assemblies for each hydrant. The vertical stacking of components and common reservoir design maximize space efficiency.

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

3Reliability

If separate drain assemblies are used for each hydrant, then complete drainage is achieved, but manufacturing and installation costs increase

Engineering Contradiction:
Improvedrainage completenessVSAvoidmanufacturing scalability
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The standardized universal design with consistent components (housing, piston, reservoir, valves) that can accommodate any number of hydrants simplifies manufacturing. The same basic assembly is produced once and can be installed for 1, 2, 3, or more hydrants by simply plugging unused openings, eliminating the need to manufacture different sized assemblies for different hydrant counts.

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

Solution Approach 2:

The assembly incorporates individual drain valves and supply line openings for each hydrant that can be independently plugged or activated. This segmented approach within a unified design allows complete drainage for active hydrants while maintaining the option to expand or reduce the number of hydrants without redesigning the entire system.

Inventive Principle:
Principle #1Segmentation

4Area of stationary object

If compact design is implemented, then installation space is reduced, but manufacturing complexity may increase

Engineering Contradiction:
Improveinstallation spaceVSAvoidmanufacturability
Core Design Contradiction:
Area of stationary objectVSEase of manufacture

Solution Approach 1:

The compact design merges multiple supply line openings, individual drain valves, a common reservoir, and a single piston mechanism into one integrated housing. This consolidation achieves space efficiency while actually simplifying manufacturing compared to producing multiple separate assemblies, as only one standardized housing design is needed regardless of the number of hydrants.

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 solution enables efficient drainage and water management, prevents contamination of supply lines, and allows for easy scaling and compact installation, reducing complexity and costs by using standard parts to accommodate different numbers of hydrants.

Implementation Method 1

The piston can be moved to empty or drain the accumulated liquid in the reservoir under the force of the supply water from the one or more activated supply valves

Methodology Applied
Scientific EffectWater pressure: Pressure Increase

Implementation Method 2

A first check valve can be provided in the first supply line and a second check valve can be provided in the second supply line

Methodology Applied
Scientific EffectCheck valve flow control: Valve

Data Source

PatentUS11180906B2Supply assembly for use with multiple lines of a hydrant
Publication Date: 2021.11.23 HOEPTNER III HERBERT W
  • US11180906B2 patent drawing
  • US11180906B2 patent drawing
  • US11180906B2 patent drawing

AI summary

A supply assembly for use with a hydrant comprising a first supply valve adapted for coupling to a first supply line of the hydrant and a second supply valve adapted for coupling to a second supply line of the hydrant. A housing contains a first drain valve and a second drain valve. The first supply valve is coupled to the first drain valve for permitting water to be drained from the first supply line when a first outlet of the hydrant is off, and the second supply valve is coupled to the second drain valve for permitting water to be drained from the second supply line when a second outlet of the hydrant is off. The first supply valve is above the second supply valve to permit radially compact nesting of the first supply valve and the second supply valve. Related assemblies, valves and methods are provided.