Static structures (e.g. – buildings) – Module or panel having discrete edgewise or face-to-face... – Having integral key
Reexamination Certificate
2011-06-07
2011-06-07
A, Phi Dieu Tran (Department: 3633)
Static structures (e.g., buildings)
Module or panel having discrete edgewise or face-to-face...
Having integral key
C052S578000, C052S586100, C052S590200, C052S589100
Reexamination Certificate
active
07954295
ABSTRACT:
A locking system for mechanical joining of floorboards. For horizontal mechanical joining there is a projecting portion with a locking element which cooperates with a locking groove in an adjacent board. A tongue-and-groove joint for vertical mechanical joining has cooperating upper abutment surfaces and cooperating lower abutment surfaces which are essentially parallel with the principal plane of the floorboards and of which the lower abutment surfaces are positioned essentially outside the outer vertical plane, i.e. displaced relative to the upper abutment surfaces. The tongue is movable at an angle into the groove and the locking element is insertable into the locking groove by mutual angular movement of the boards about the joint edges.
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Pervan, et al., U.S. Appl. No. 12/959,971, entitled “Locking System, Floorboard Comprising Such a Locking System, as Well as Method for Making Floorboards,” filed Dec. 3, 2010.
A Phi Dieu Tran
Buchanan & Ingersoll & Rooney PC
Valinge Innovation AB
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