US 12,256,482 B2
Static dissipative flooring system
Paul Woolvine, Eastleigh (GB); and Thomas J. Lutz, Wheaton, IL (US)
Assigned to Intelli-Force Technology Corp., St. Charles, IL (US)
Filed by !OBAC Limited, Guernsey (GB); and Thomas J. Lutz, Wheaton, IL (US)
Filed on Dec. 4, 2023, as Appl. No. 18/527,720.
Application 18/527,720 is a continuation of application No. 17/436,708, granted, now 11,839,011, issued on Dec. 5, 2023, previously published as PCT/EP2020/055346, filed on Feb. 28, 2020.
Claims priority of application No. 19161293 (EP), filed on Mar. 7, 2019.
Prior Publication US 2024/0107651 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H05F 3/00 (2006.01); C09J 9/02 (2006.01); C09J 11/04 (2006.01); C09J 175/04 (2006.01); E04F 15/02 (2006.01); E04F 15/10 (2006.01); H05F 3/02 (2006.01)
CPC H05F 3/025 (2013.01) [C09J 9/02 (2013.01); C09J 11/04 (2013.01); C09J 175/04 (2013.01); E04F 15/02144 (2013.01); E04F 15/107 (2013.01); E04F 2290/048 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A magnetically adhered, static dissipative floor covering, comprising:
a magnetically receptive floor surface; and
a floor covering comprising a plurality of static dissipative, magnetic floor tiles,
magnetic interaction between the magnetic floor tiles and the magnetically receptive surface causing the magnetic floor tiles to be retained on the magnetically receptive floor surface;
the magnetic floor tiles are a composite construction comprising a static dissipative vinyl wearing layer, an integral, conductive ground plane and an integral, planar magnetic layer;
the conductive ground plane comprises a non-woven synthetic fabric with a nickel-copper coating and a conductive adhesive backing;
the conductive ground plane is bonded to the static dissipative wearing layer by the conductive adhesive backing.