公开(公告)号：US09399884B2

公开(公告)日：2016-07-26

申请号：US14091789

申请日：2013-11-27

Applicant: Yale Security Inc.

Inventor： David James Copeland, II ,  Keith James Weepie ,  Robert L. Tadlock, Jr. ,  Charles E. Burris ,  John J. White, Jr. ,  Jason Scott Gurley ,  Steven Michael Faes ,  Joseph Ralph McGinty ,  Wade C. Patterson

IPC: E05F1/00 ,  G05B15/02 ,  E05F3/12 ,  E05F1/08 ,  E05F3/18 ,  G05B11/01 ,  G06F1/32

CPC classification number: E05F1/002 ,  E05F1/08 ,  E05F3/12 ,  E05F3/18 ,  E05Y2201/20 ,  E05Y2201/25 ,  E05Y2201/254 ,  E05Y2201/458 ,  E05Y2201/492 ,  E05Y2400/614 ,  E05Y2400/616 ,  E05Y2800/22 ,  E05Y2800/292 ,  E05Y2800/298 ,  E05Y2900/132 ,  G05B11/01 ,  G05B15/02 ,  G06F1/3234 ,  Y10T16/293 ,  Y10T16/56 ,  Y10T16/577

Abstract: 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.