Connecting system for surface coverings

Details Connecting system for surface coverings Connecting system for surface coverings

2005-07-27

2010-12-14

Canfield, Robert J (Department: 3633)

Static structures (e.g., buildings)

Module or panel having discrete edgewise or face-to-face...

Having integral key

C052S588100, C052S591400, C052S747100, C052S177000

Reexamination Certificate

active

07849655

ABSTRACT:
A system and method for joining floor planks includes two or more planks wherein each plank includes a tongue, a groove, and optionally a shoulder, and optionally a protruding lip, that provide a mechanism for connecting two or more planks together. The tongue can be on the opposing side of each plank from the groove. The groove can be defined between a first flange extending along a first edge of the plank and from one side of the plank, and a second flange extending distally beyond a distal edge of the first flange from the first edge of the plank and from a second side of the plank opposite from the first side. The tongue can be S-shaped to form an interlocking relationship with the groove.

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International Search Report and Written Opinion of the International Searching Authority for PCT/US2006/027843 dated Dec. 27, 2006.
2 pictures of floor plank profile sample from Belgium flooring company (2004) (1 page).

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