US 6,598,251 · Granted 2003-07-29
The Smart Seat Cushion That Adjusts to Your Body
Imagine a cushion that gets firmer or softer depending on where you're sitting and how much you weigh. This patent describes a seat cushion with a hidden layer of fluid channels and gel that moves around to support you better and keep you cooler than regular foam.
The plain-English version
What it protects
The claim covers a modular seat cushion design with a foam base layer containing vertical foam columns that create a fluid reservoir, paired with fluid channels that let liquid flow in and out, topped with a viscoelastic gel or elastomeric layer. What's protected here is specifically the combination of these three parts working together to create dynamic support that responds to body pressure and redistributes fluid for comfort.
Why it matters
This patent matters because it solves a real problem: standard foam cushions compress unevenly and trap heat, making long sitting sessions uncomfortable. By making the cushion modular and fluid-responsive, manufacturers can customize seating for different body types and environments without replacing the entire chair. This approach also improves thermal regulation, which is especially valuable in office furniture where people spend eight hours a day.
Real-world use
You'd encounter this technology in high-end office chairs and specialty seating designed to reduce fatigue during long work days, where the cushion actively redistributes your weight as you shift positions.
Original USPTO abstract
A body support system is provided having improved static and dynamic mechanical response characteristics and improved thermal regulation. The body support system can be of a modular construction to provide mechanical response characteristics suited to a particular user or group of users, or to a particular environment or use. In one embodiment, the body support system is a seat cushion comprising a foam layer with a central region, a plurality of spaced apart vertical foam columns that define a fluid reservoir in the central region, a plurality of fluid channels in the foam layer for communicating fluid in and out of the fluid reservoir, and an elastomeric layer having resilience and flow properties, such as a viscoelastic gel, positioned above the fluid reservoir.
Patent details
- Publication number
- US 6,598,251
- Filing date
- 2001-06-15
- Grant date
- 2003-07-29
- Assignee
- Hon Technology Inc.
- Inventor(s)
- —
- CPC class
- B60N2/5635
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