US 12,378,733 B1
Bridge deck paver with enhanced hydraulic shifting
Timmy D. Guinn, Paragould, AR (US); and Michael W. McKean, Arlington, TN (US)
Assigned to Allen Engineering Corp., Paragould, AR (US)
Filed by Allen Engineering Corporation, Paragould, AR (US)
Filed on Dec. 8, 2021, as Appl. No. 17/545,518.
Claims priority of provisional application 63/123,537, filed on Dec. 10, 2020.
Int. Cl. E01C 19/28 (2006.01)
CPC E01C 19/286 (2013.01) 10 Claims
OG exemplary drawing
 
1. An automated paver for treating bridge decks and roadways, the paver comprising:
a rigid, elongated frame adapted to be disposed over a bridge deck or roadway being treated;
a plurality of vertically upright stanchions for moving and supporting said frame;
a movable carriage adapted to be slidably displaced along the frame;
a chain for selectively moving the carriage;
means for displacing the chain and thus the carriage;
a treatment head suspended from said carriage for engaging and treating raw concrete;
and,
hydraulic circuit means for controlling the paver, the hydraulic circuit means comprising:
a carriage drive motor for actuating said chain;
a carriage reversing valve for reversing the carriage drive motor and thus said carriage;
a carriage deceleration valve for dampening carriage movements prior to carriage reversing;
a hydraulic ground propulsion motor for each support stanchion;
a reversing valve for controlling each of said hydraulic ground propulsion motors; and,
a hydraulic ground travel valve connected to said reversing valve for powering said hydraulic ground propulsion motors.