US 7,040,068 · Granted 2006-05-09
The Snap-Lock Floor Patent That Ended Wobbly Laminate Forever
Imagine floor panels that lock together sideways using a tongue-and-groove system with built-in mechanical catches—so they can't shift or separate once snapped in place. This patent describes how to make hard floor panels click together like LEGO blocks, staying perfectly aligned without nails or glue.
The plain-English version
What it protects
The claim covers hard floor panels equipped with coupling parts (tongue-and-groove connectors) on opposite edges that include integrated mechanical locking elements. What's protected here is the specific design of those locking elements—they snap the panels together and prevent them from drifting sideways or peeling apart in directions parallel to the floor's underside. Anyone manufacturing laminate or engineered wood flooring with this exact locking mechanism would infringe on this patent.
Why it matters
This patent solved a real problem in the laminate and engineered flooring industry: panels shifting, buckling, or separating over time. By integrating the locking mechanism directly into the panel edge rather than using external fasteners, manufacturers could offer easier installation and better long-term stability. The snap-action coupling also meant homeowners and installers didn't need special tools or adhesives, making DIY installation more practical and attractive to consumers.
Real-world use
When you install or walk across a modern laminate or engineered wood floor that clicks together without nails, you're experiencing the mechanics this patent locked down—those panels are held tight sideways by the mechanical locking elements hidden in their edges.
Original USPTO abstract
Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrated mechanical locking elements which prevent the drifting apart of two coupled floor panels in a direction (R) perpendicular to the related edges and parallel to the underside of the coupled floor panels, and provide a snap-action coupling.
Patent details
- Publication number
- US 7,040,068
- Filing date
- 2002-09-27
- Grant date
- 2006-05-09
- Assignee
- Unilin Beheer B.V., Besloten Vennootschap
- Inventor(s)
- MORIAU STEFAN SIMON GUSTAAF, CAPPELLE MARK GASTON MAURITS, THIERS BERNARD PAUL JOSEPH
- CPC class
- E04F15/02038
Want to file your own patent?
If you're designing a new flooring system or home improvement product with interlocking parts, check our free scanner to see if your edge-locking idea overlaps with existing patents in the space.
Free patentability scan