A door closer assembly is provided, including a valve regulating an amount of hydraulic fluid that flows through the valve. The amount of hydraulic fluid flowing through the valve controls a force generated by the door closer assembly on a door. A first sensor measures an angular position of the door, and a second sensor measures an angular position of the valve. The angular position of the valve determines the amount of hydraulic fluid flowing through the valve. A controller controls the adjustment of the valve based on the angular position of the door and the angular position of the valve.
申请公布号
CA2698634(C)
申请公布日期
2014.02.11
申请号
CA20082698634
申请日期
2008.04.24
申请人
YALE SECURITY INC.
发明人
COPELAND, DAVID JAMES, II;WEEPIE, KEITH JAMES;TADLOCK, ROBERT L., JR.;BURRIS, CHARLES E.