Dry open window (DOW) apparatus
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Solution Overview
Problem
Conventional open windows allow precipitation to enter during inclement weather, disrupting airflow and causing inconvenience, while closed windows lead to heat-related issues and increased energy consumption.
Innovation Solution
The development of dry open window (DOW) structures with adjustable louvers and mounting mechanisms that allow fresh air to enter while preventing rain, featuring extendable frames, 'twist and tight' mechanisms, adhesive and Velcro attachments, and rod-and-hook configurations for secure installation on various window sizes and types, including tents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the window is left open to let fresh air in, then air flow is improved, but precipitation enters the building
Solution Approach 1:
The window opening is segmented into multiple horizontal slats that create separate channels for air flow and precipitation drainage. Each slat acts as an independent element that collectively provides both air intake and rain protection functions.
Solution Approach 2:
The slats are arranged horizontally rather than vertically, creating a new dimensional approach to the traditional window structure. This horizontal orientation allows air to pass through while directing precipitation along the slat surfaces to drainage channels at the bottom.
2Object-affected harmful factors
If the window is closed to keep rain out, then precipitation entry is prevented, but heat buildup and energy consumption increase
Solution Approach 1:
The slats are designed to be adjustable rather than fixed, allowing the window structure to adapt dynamically to different weather conditions. Users can modify the slat positions or angles to optimize air flow during hot weather while maintaining rain protection, or close completely during storms.
3Productivity
If conventional louvered windows are used to allow air flow, then air flow is improved, but they cannot keep rain out when there is steady wind
Solution Approach 1:
Drainage channels are introduced as intermediary elements between the slats and the window frame. These channels actively intercept and redirect precipitation that would otherwise penetrate through the louver gaps, especially under windy conditions where rain is driven horizontally.
Solution Approach 2:
The drainage function is extracted as a separate, dedicated component rather than relying solely on the slats to perform both air flow and rain protection. This specialization allows the slats to focus on air intake while the drainage system handles precipitation removal.
4Reliability
If a fixed DOW structure is installed, then rain protection is achieved, but adaptability to different window sizes and types is reduced
Solution Approach 1:
The DOW structure incorporates multiple mounting mechanisms (adhesive, Velcro, rod-and-hook, extendable frames) that enable the same basic device to be installed on various window types including standard windows, sliding doors, and even tents. This multi-functional mounting approach provides universal applicability.
Solution Approach 2:
The mounting components are designed to be nested or modular, with extendable frames that can be adjusted to fit different opening sizes. The rod-and-hook system allows the structure to be configured for various dimensions while maintaining the core rain protection functionality.
Data Source
AI summary
Improvements in the manufacture, mounting and implementation of dry open window (DOW) structures. Such structures comprise a plurality of louvers which, when viewed in cross section, have “V” or “W” shapes that enable air to pass through a window opening while substantially preventing precipitation to pass, the precipitation instead being captured by the louvers for collection or drainage.