US 6,026,527 · Granted 2000-02-22
The Buckles-on-Demand Cushion That Spreads Pressure Like Magic
Imagine a cushion filled with tiny columns that intentionally crumple when you sit on it — kind of like soda straws that collapse in a controlled way. As these columns buckle under your weight, they spread the pressure evenly across the whole surface, so no spot gets crushed while another stays stiff. This makes for a cushion that feels comfortable no matter how you sit.
The plain-English version
What it protects
The claim covers a cushioning element made from soft, elastic material (think gel or foam) that contains multiple parallel columns designed to buckle and compress under applied force. What's protected here is the specific structure and behavior: as pressure is applied parallel to the columns, the walls deform and buckle in a way that equalizes pressure distribution across the contact area. This protects the geometric design of the column layout and the mechanical principle of controlled buckling.
Why it matters
This patent tackles a real comfort problem: uneven pressure distribution in cushions and padding. By designing columns to intentionally buckle under load, the technology prevents pressure spots and creates more uniform support. This kind of innovation matters in furniture, seating, and any application where comfort and durability depend on how weight is spread across a surface. The approach combines engineering with material science to improve everyday comfort products.
Real-world use
You'd encounter this technology in premium office chair cushions, high-end mattress toppers, or ergonomic seat pads — anywhere a manufacturer wants to claim that their cushion distributes your weight evenly for maximum comfort.
Original USPTO abstract
A cushioning element that has a number of substantially parallel elongate columns which buckle under an appropriate load. The cushioning element may be formed from a soft, easily deformable elastic or visco-elastic cushioning media. As a force is exerted against the cushioning element generally parallel to a column, the cushioning media may compress, and eventually the walls of the column may buckle. This equalizes pressure across the contact area of the object being cushioned.
Patent details
- Publication number
- US 6,026,527
- Filing date
- 1997-08-13
- Grant date
- 2000-02-22
- Assignee
- Edizone, Lc
- Inventor(s)
- PEARCE; TONY M.
- CPC class
- A43B13/04
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