公开(公告)号：US09523230B2

公开(公告)日：2016-12-20

申请号：US14531304

申请日：2014-11-03

Applicant: Yale Security Inc.

Inventor： Charles E. Burris ,  Robert L. Tadlock, Jr. ,  John White ,  Jason Scott Gurley ,  Steven Michael Faes ,  Joseph McGinty ,  Wade Patterson

IPC: E05F3/00 ,  E05F15/614 ,  E05F3/10 ,  G05D7/06 ,  E05F3/22 ,  E05F15/60 ,  E05F15/616 ,  E05F15/70

CPC classification number: E05F15/614 ,  E05F3/102 ,  E05F3/227 ,  E05F15/60 ,  E05F15/616 ,  E05F15/70 ,  E05Y2201/11 ,  E05Y2201/43 ,  E05Y2400/612 ,  E05Y2400/616 ,  E05Y2800/22 ,  E05Y2900/132 ,  G05D7/0617 ,  Y10T16/2766 ,  Y10T16/56 ,  Y10T16/577

Abstract: A door closer comprises a piston cooperating with a rotating pinion. Upon rotation of the pinion in the door opening direction, the piston moves toward the second end of the housing forcing fluid from a second variable volume chamber through a passage to a first variable volume chamber and compressing a spring assembly for storing energy. The spring assembly urges the piston toward the first end of the housing for forcing fluid from the first variable volume chamber to the second variable volume chamber and rotating the pinion in the door closing direction. A controller controls the position of a valve in the passage based on the sensed angular position of a door and the position of the valve for determining the amount of hydraulic fluid flowing through the valve.

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.