	US 12,227,911 B2
	Mobile barrier
Kevin K. Groeneweg, Golden, CO (US); David Meyerink, Golden, CO (US); Duane Meyerink, Golden, CO (US); and LeRoy Severson, Golden, CO (US)
Assigned to Concaten, Inc., Golden, CO (US)
Filed by Concaten, Inc., Golden, CO (US)
Filed on Jan. 23, 2023, as Appl. No. 18/100,554.
Application 18/100,554 is a division of application No. 17/174,747, filed on Feb. 12, 2021, granted, now 11,560,679, issued on Jan. 24, 2023.
Application 17/174,747 is a division of application No. 16/889,221, filed on Jun. 1, 2020, granted, now 10,920,384, issued on Feb. 16, 2021.
Application 16/889,221 is a division of application No. 16/236,940, filed on Dec. 31, 2018, granted, now 10,669,681, issued on Jun. 2, 2020.
Application 16/236,940 is a division of application No. 15/277,693, filed on Sep. 27, 2016, granted, now 10,179,981, issued on Jan. 15, 2019.
Application 15/277,693 is a division of application No. 15/048,913, filed on Feb. 19, 2016, granted, now 9,481,969, issued on Nov. 1, 2016.
Application 15/048,913 is a division of application No. 14/177,097, filed on Feb. 10, 2014, granted, now 9,273,437, issued on Mar. 1, 2016.
Application 14/177,097 is a division of application No. 13/686,756, filed on Nov. 27, 2012, granted, now 8,657,525, issued on Feb. 25, 2014.
Application 13/686,756 is a division of application No. 12/347,467, filed on Dec. 31, 2008, granted, now 8,322,945, issued on Dec. 4, 2012.
Claims priority of provisional application 61/061,567, filed on Jun. 13, 2008.
Claims priority of provisional application 61/091,246, filed on Aug. 22, 2008.
Claims priority of provisional application 61/122,941, filed on Dec. 16, 2008.
Prior Publication US 2023/0160163 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E01F 15/14 (2006.01); B60P 3/00 (2006.01); B62D 63/06 (2006.01); E01F 9/60 (2016.01); E01F 9/662 (2016.01); E01F 15/00 (2006.01); E01F 15/08 (2006.01); E01F 15/10 (2006.01)

CPC E01F 15/148 (2013.01) [B60P 3/00 (2013.01); B62D 63/061 (2013.01); E01F 9/602 (2016.02); E01F 9/662 (2016.02); E01F 15/00 (2013.01); E01F 15/006 (2013.01); E01F 15/088 (2013.01); E01F 15/10 (2013.01); E01F 15/14 (2013.01)]

19 Claims

1. A safety system, comprising: (a) a vehicle; (b) first and second platforms; (c) a barrier connected between the first and second platforms, the barrier and first and second platforms forming a protected work space; and (d) a detachable caboose, wherein the vehicle is releasably engaged with the first platform and the caboose is releasably engaged with the second platform, wherein the vehicle and caboose have braking systems that operate independently.