Louvered Privacy Screen for Sash Windows
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Solution Overview
Problem
Existing solutions for maintaining privacy in single- and double-hung sash windows, such as curtains, blinds, and window films, are costly, difficult to install, and impede natural light and air circulation when the window is open.
Innovation Solution
A louvered privacy screen comprising vertical side members with parallel slits and translucent, flexible louvers that are easily installed and removable, allowing for unobstructed movement of window sashes and airflow while blocking views.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If curtains, blinds, or shutters are used to maintain privacy, then privacy is improved, but installation complexity and cost increase
Solution Approach 1:
The privacy screen is divided into multiple horizontal louvers attached to vertical side members, creating a modular structure that can be easily assembled and disassembled without professional installation
Solution Approach 2:
The louvers are designed to be adjustable and reconfigurable, allowing users to change the privacy level and airflow characteristics by repositioning individual louver elements
2Reliability
If curtains, blinds, or shutters are drawn to maintain privacy, then privacy is improved, but natural light and air circulation are reduced
Solution Approach 1:
The louvers are spaced at specific intervals and angled to create zones of privacy while maintaining gaps for light transmission and air flow, achieving selective functionality in different areas of the same structure
Solution Approach 2:
The louvered structure creates a porous barrier that selectively blocks line-of-sight views while permitting the passage of light and air through the inter-louver spaces
3Reliability
If traditional privacy devices are used, then privacy is improved, but ease of cleaning and maintenance deteriorates
Solution Approach 1:
The screen consists of separate, detachable louver components that can be individually removed for cleaning without disassembling the entire structure
Solution Approach 2:
The simple louver design allows users to easily clean and maintain the privacy screen themselves without requiring professional service or special tools
4Reliability
If window films are used to maintain privacy, then privacy is improved when window is shut, but ventilation is impeded when window is open
Solution Approach 1:
The louvered screen can be dynamically adjusted or removed when ventilation is needed, providing adaptability between privacy mode and ventilation mode unlike static window films
Data Source
AI summary
An inexpensive and easy to install privacy screen for a single- or double-hung sash window. The invention comprises a plurality of horizontal louvers that are translucent and flexible, and a pair of vertical side members having a plurality of parallel slits. The louvers are affixed in parallel at both ends to the vertical side members by insertion into the slits. When installed in an open single- or double-hung sash window, the invention permits air circulation and the passage of natural light into an enclosed space, while maintaining an occupant's privacy. The invention is to be installed above or below a first sash of the window so as to allow the user to move a second sash to open and close the window with the invention in place.