Elongated Shower Drain Assembly with Adjustable Height
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Solution Overview
Problem
The installation of traditional center drains in shower stalls requires complex tiling and slope management, making it difficult and costly to use large tiles, and existing elongated drains lack adjustability and are not suitable for residential DIY installations.
Innovation Solution
An elongated drain assembly with an adjustable length and height, designed for residential use, which simplifies the installation by allowing a single-direction slope for the shower pan, and includes mechanisms for adjusting the grate height to accommodate different tile thicknesses, facilitating easier installation and aesthetic alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional center drain is used in a shower stall, then water drainage is effective, but the tiling and slope management becomes complex and time-consuming
Solution Approach 1:
The drain assembly is divided into multiple components: a base unit with integrated slope, a separate grate assembly, and adjustable height mechanisms. This segmentation allows the slope function to be built-in at the source, eliminating the need for complex overall floor sloping and simplifying tiling installation while maintaining effective water drainage towards the drain
2Shape
If large-sized tiles are used in a shower floor, then aesthetic appearance is improved, but cutting tiles on diagonal at slope intersections becomes necessary and complex
Solution Approach 1:
The drain system is segmented into a base unit with pre-integrated slope and a separate grate assembly. This allows the slope to be contained within the drain unit itself, creating a single-direction slope toward the drain rather than multiple intersecting slopes. This eliminates the need to cut large tiles diagonally at slope intersections, making installation straightforward while maintaining the aesthetic appearance of large tiles
Solution Approach 2:
Instead of sloping the entire shower floor towards a center drain (which creates multiple slope directions), the invention inverts the approach by placing an elongated drain at one edge of the shower stall and sloping the floor in a single direction toward it. This inversion simplifies tile installation by eliminating diagonal cuts while still achieving effective water drainage
3Ease of manufacture
If elongated drains are used in commercial applications, then single-direction slope installation is simplified, but the drains require skilled craftsmen and exacting construction making them prohibitively expensive for residential use
Solution Approach 1:
The drain assembly is divided into modular components that can be easily assembled by DIYers: a base unit with integrated slope, a grate assembly, and simple height adjustment mechanisms. This segmentation reduces installation complexity and skill requirements while maintaining the benefits of single-direction slope installation, making the system economically suitable for residential applications
Solution Approach 2:
The drain assembly incorporates adjustable height mechanisms that allow the grate to be positioned at different elevations. This dynamic adjustability compensates for variations in tile thickness and floor levels without requiring skilled craftsmanship, enabling DIY installation while maintaining proper drainage function and aesthetic alignment
4Ease of manufacture
If elongated drains with fixed dimensions are used, then manufacturing is simplified, but adaptability to different shower stall sizes and tile thicknesses is reduced
Solution Approach 1:
The drain assembly incorporates adjustable height mechanisms that allow the grate to be positioned at different elevations to accommodate various tile thicknesses and floor levels. This dynamic adjustability maintains manufacturing simplicity while significantly improving adaptability to different shower stall sizes and configurations, making the same base unit suitable for diverse residential applications
Data Source
AI summary
Elongated drain assemblies suitable for use in tiled shower stalls are described. Because the elongated drain is typically located at one edge of the shower stall proximate a stall wall and extends substantially the entire length of the wall, the installation of the associated shower pan is made much simpler. Specifically, the pan need only be sloped substantially in a single direction instead of four towards a prior art circular drain located at the center of a stall. The time and cost of creating a pan having a single slope is reduced over a more complex multi-sloped pan. Several different means for adjusting the height of the drain assemblies' top surfaces relative to the height of the tile floor are provided to adjust for tile floors of differing thicknesses.