US 12,215,505 B2
Resilient floor
Mats Nilsson, Ramlösa (SE); and Per Nygren, Ramlösa (SE)
Assigned to VÄLINGE INNOVATION AB, Viken (SE)
Filed by Välinge Innovation AB, Viken (SE)
Filed on Jun. 15, 2023, as Appl. No. 18/210,510.
Application 18/210,510 is a continuation of application No. 17/694,843, filed on Mar. 15, 2022, granted, now 11,725,395.
Application 17/694,843 is a continuation of application No. 16/713,431, filed on Dec. 13, 2019, granted, now 11,306,486, issued on Apr. 19, 2022.
Application 16/713,431 is a continuation of application No. 16/027,465, filed on Jul. 5, 2018, granted, now 10,526,793, issued on Jan. 7, 2020.
Application 16/027,465 is a continuation of application No. 14/982,608, filed on Dec. 29, 2015, granted, now 10,047,527, issued on Aug. 14, 2018.
Application 14/982,608 is a continuation of application No. 14/272,895, filed on May 8, 2014, granted, now 9,249,581, issued on Feb. 2, 2016.
Application 14/272,895 is a continuation of application No. 13/734,406, filed on Jan. 4, 2013, granted, now 8,756,899, issued on Jun. 24, 2014.
Application 13/734,406 is a continuation of application No. 12/875,293, filed on Sep. 3, 2010, granted, now 8,365,499, issued on Feb. 5, 2013.
Claims priority of provisional application 61/239,927, filed on Sep. 4, 2009.
Prior Publication US 2024/0159061 A1, May 16, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E04F 15/02 (2006.01); E04B 5/00 (2006.01); E04F 15/10 (2006.01)
CPC E04F 15/02038 (2013.01) [E04B 5/00 (2013.01); E04F 15/10 (2013.01); E04F 15/105 (2013.01); E04F 2201/0138 (2013.01); E04F 2201/0146 (2013.01); E04F 2201/0153 (2013.01); Y10T 29/49623 (2015.01)] 19 Claims
OG exemplary drawing
 
1. A set of resilient floorboards, each floorboard provided with a mechanical locking system for vertical and horizontal locking to an adjacent floorboard, the mechanical locking system comprising a first device at a first edge, and a second device at a second edge,
wherein the floorboards each include a core made of a thermoplastic material,
wherein the first device comprises a downwardly protruding locking element and the second device comprises an upwardly protruding locking element,
wherein the downwardly protruding locking element is provided with an angled first locking surface configured to cooperate with an angled second locking surface of the upwardly protruding locking element of the adjacent floorboard for locking the first edge vertically and horizontally with the second edge of the adjacent floorboard,
wherein the first edge and the first device are resiliently bendable with an axis of curvature that is perpendicular to the second edge of the second floorboard, the curvature being convex toward the bottom surface of the floorboards,
wherein the first device further comprises a locking groove configured to form a tight fit with the upwardly protruding locking element, wherein the angled first locking surface is configured to contact the angled second locking surface of the upwardly protruding locking element, and wherein a surface of the locking groove opposite the angled first locking surface is configured to contact a surface of the upwardly protruding locking element opposite the angled second locking surface,
wherein the first edge comprises a first top edge and the second edge comprise a second top edge, wherein a surface of the first top edge and a surface of the second top edge are vertical.