Vertical Sidewall Window Sprinkler Deflector for Wider Spacing

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Solution Overview

Problem

Existing fire protection sprinkler systems for windows face limitations in sprinkler-to-sprinkler spacing, requiring increased coverage and reduced number of sprinklers for effective fire protection.

Innovation Solution

A pendent vertical sidewall window sprinkler with a fluid distribution member featuring an arcuate surface and a distribution block that allows for larger sprinkler-to-sprinkler spacings of up to fifteen feet, enhancing fluid distribution over multiple glass panes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If conventional sprinkler systems are used for window protection, then fire protection coverage is provided, but sprinkler-to-sprinkler spacing is limited requiring more sprinklers

Engineering Contradiction:

Improvecoverage areaVSAvoidnumber of sprinklers

Core Design Contradiction:

Area of stationary objectVSQuantity of substance

Solution Approach 1:

The patent changes the geometric parameters of the deflector, specifically incorporating an arcuate surface with a defined radius of curvature. This parameter change allows the fluid to be distributed over a wider area, enabling sprinkler-to-sprinkler spacings of up to fifteen feet while maintaining effective fire protection coverage.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If conventional sprinkler spacing is used, then adequate fluid distribution is achieved, but the number of sprinklers required increases

Engineering Contradiction:

Improvefluid distribution effectivenessVSAvoidnumber of sprinklers

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The deflector incorporates an arcuate surface with a specific radius of curvature that creates a spherical or curved fluid distribution pattern. This curvature allows the fluid to spread more evenly and effectively over a larger area, maintaining reliable fire protection while reducing the total number of sprinklers needed in the system.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Reliability

If more sprinklers are installed to ensure coverage, then fire protection reliability improves, but installation complexity and cost increase

Engineering Contradiction:

Improvefire protection coverageVSAvoidsystem installation complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

By optimizing the deflector geometry parameters, particularly the arcuate surface radius, the system achieves extended coverage with fewer sprinklers. This parameter optimization simplifies the overall system installation by reducing the number of components to be installed while maintaining or improving fire protection reliability.

Inventive Principle:

Principle #35Parameter changes

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 sprinkler system provides improved fire protection by increasing coverage area with fewer sprinklers, achieving effective fluid distribution up to fifteen feet, thereby optimizing installation efficiency and reducing the number of required sprinklers.

Implementation Method 1

a fluid distribution member having an arcuate surface about the sprinkler axis to provide for lateral throw of fluid

Methodology Applied

Scientific EffectFluid redirection through arcuate geometry:

Implementation Method 2

the glass panes to wet and cool the glass panes of the window arrangement

Methodology Applied

Scientific EffectFluid distribution through geometric surfaces:

Data Source

PatentUS12551907B2Pendent vertical sidewall window sprinklers, systems and methods of fire protection

Publication Date: 2026.02.17 MINIMAX VIKING PATENT MANAGEMENT GMBH

AI summary

Pendent vertical sidewall fire protection sprinklers, systems and methods for the protection of windows are provided. The sprinklers include a fluid deflection member with an impact surface and an adjacent retention surface having one or more arcuate surface profiles to define a fluid throw channel. The sprinklers and their system installation provide for a maximum sprinkler-to-sprinkler spacing that ranges from over eight feet to fifteen feet (8+ ft. to 15 ft.).