×

Door actuator

  • US 10,385,601 B2
  • Filed: 02/20/2017
  • Issued: 08/20/2019
  • Est. Priority Date: 02/22/2011
  • Status: Active Grant
First Claim
Patent Images

1. A door operator system configured for use with a door mounted in a frame, wherein the door is pivotable relative to the frame in each of a door-opening direction and a door-closing direction, the door operator system comprising:

  • a door closer configured for mounting between the door and the frame, the door closer comprising;

    a housing configured for mounting to one of the door and the frame;

    an arm assembly configured for mounting to the other of the door and the frame;

    a pinion rotatably mounted in the housing, the pinion including a body portion, a first end, and an opposite second end, wherein the body portion is located within the housing, wherein the first end extends out of a first side of the housing and is engaged with the arm assembly, wherein the second end extends out of an opposite second side of the housing, wherein the pinion is rotatable in each of a first direction corresponding to the door-opening direction and a second direction corresponding to the door-closing direction; and

    a spring seated within the housing and engaged with the pinion, the spring biasing the pinion in the second direction; and

    a power boost assembly comprising;

    a casing mounted to the second side of the housing of the door closer;

    a driver rotatably mounted in the casing, wherein the driver is rotationally coupled with the second end of the pinion, the coupled driver and pinion having a door closed position, a door open position, and a boost position; and

    an energy storage device mounted in the casing and in power communication with the driver;

    wherein the power boost assembly is configured to convey an energy to the energy storage device as the coupled driver and pinion rotate in a first rotational direction from the door closed position toward the door open position;

    wherein the power boost assembly is configured to store the energy in the energy storage device as the coupled driver and pinion rotate in a second rotational direction from the door open position toward the boost position; and

    wherein the power boost assembly is configured to release the stored energy as the coupled driver and pinion rotate in the second rotational direction from the boost position toward the door closed position, and to translate the released energy to a torque on the driver, the torque urging the coupled driver and pinion in the second rotational direction toward the door closed position.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×