Floorboards and methods for production and installation thereof
US6851241B2 · kind B2 · utility
108Cited by
169References
134Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | May 10, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F2201/0517
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A floorboard and an openable locking system therefor comprise an undercut groove on one long side of the floorboard and a projecting tongue on the opposite long side of the floorboard. The undercut groove has a corresponding upwardly directed inner locking surface at a distance from its tip. The tongue and the undercut groove are formed to be brought together and pulled apart by a pivoting motion which has its center close to the intersection between the surface planes and the common joint plane of two adjoining floorboards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.