US 12,331,470 B2
Wide swath offset concrete screed
Luke Terstriep, Quincy, IL (US)
Assigned to Dragon Screed LLC, Quincy, IL (US)
Filed by Dragon Screed LLC, Quincy, IL (US)
Filed on Jan. 11, 2022, as Appl. No. 17/573,605.
Application 17/573,605 is a continuation in part of application No. 16/689,056, filed on Nov. 19, 2019, granted, now 11,220,794.
Application 16/689,056 is a continuation in part of application No. 16/197,257, filed on Nov. 20, 2018, granted, now 10,480,133, issued on Nov. 19, 2019.
Application 16/197,257 is a continuation of application No. 15/621,804, filed on Jun. 13, 2017, granted, now 10,132,047, issued on Nov. 20, 2018.
Application 16/197,257 is a continuation of application No. 14/877,805, filed on Oct. 7, 2015, granted, now 9,677,230, issued on Jun. 13, 2017.
Prior Publication US 2022/0243406 A1, Aug. 4, 2022
Int. Cl. E01C 19/42 (2006.01); E01C 19/40 (2006.01); E04F 21/05 (2006.01); E04F 21/24 (2006.01); E04G 21/10 (2006.01); E01C 19/20 (2006.01)
CPC E01C 19/42 (2013.01) [E01C 19/40 (2013.01); E01C 19/405 (2013.01); E04F 21/05 (2013.01); E04F 21/241 (2013.01); E04F 21/242 (2013.01); E04G 21/10 (2013.01); E01C 2019/209 (2013.01); E01C 2301/14 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A screed bar shape adjustment assembly for an offset concrete screed apparatus for screeding wet concrete slurry, the screed bar shape adjustment assembly comprising:
a brace arm including a first brace arm end and a second brace arm end, the first brace arm end being rigidly connected to a screed bar of the offset concrete screed apparatus;
an expansion link including a first expansion link end and a second expansion link end, the first expansion link end being connected to the screed bar;
an inner truss arm including a first inner truss end and a second inner truss end, the first inner truss end being pivotably connected to the second expansion link end; and
an outer truss arm including a first outer truss end and a second outer truss end, the first outer truss end being pivotably connected to the expansion link via the inner truss arm, the second outer truss end being pivotably connected to the brace arm.