Door operator assembly

1 . A door operator assembly, comprising

an operator unit mounted to a first position, relative to the door, by a first mounting bracket; and

an arm linkage connecting said operator unit and a second position, relative to the door; said arm linkage being mounted at said second position by a second mounting bracket.

2 . The door operator assembly of claim 1 , said operator unit including a motor and a controller, said controller constantly monitoring a speed and a position of the door, wherein, when the door begins to move faster than a predetermined speed, the motor is used as a generator to remove energy from the door and slow the door down.

3 . The door operator assembly of claim 2 , wherein any excess energy applied manually to the door is removed from the door.

4 . The door operator assembly of claim 3 , comprising batteries, said excess energy being used to recharge said batteries.

5 . The door operator assembly of claim 3 , comprising a low battery indicator.

6 . The door operator assembly of claim 1 , wherein said controller calculates an approximate inertia of the door by monitoring a power provided to the door and a resulting speed of the door.

7 . The door operator assembly of claim 1 , wherein said controller automatically sets a speed and a force submitted to the door.

8 . The door operator assembly of claim 1 , wherein said operator unit comprises a power storage pack for powering the door operator.

9 . The door operator of claim 1 , activated by Radio Frequency remote control.

10 . The door operator assembly of claim 1 , powered by a self-contained power storage pack.

11 . The door operator assembly of claim 1 , said operator unit comprising a removable cover.

12 . A door operator assembly of claim 1 , said first position being selected between one of: i) the door and ii) a frame of the door, said second position being one of: i) the door and ii) the frame of the door depending on said first position.

13 . The door operator assembly of claim 1 , wherein said arm linkage comprises a shock absorbing door arm, said shock absorbing door arm being attached at a first end thereof to said second mounting bracket and at a second end thereof to said operator unit.

14 . The door operator assembly of claim 13 , wherein said shock absorbing door arm is connected to said operator unit by a drive arm unit, said drive arm unit comprising an arm having a spherical bearing at a first end thereof for connection to said shock absorbing door arm and a tapered shaft coupling assembly at a second end thereof for connection to said operator unit.

15 . The door operator assembly of claim 13 , wherein said shock absorbing door arm comprises a solid arm and a hollow arm connected through a threaded housing, said hollow arm rotating in relation to said threaded housing for length adjustment of said shock absorbing door arm.

16 . The door operator assembly of claim 15 , said solid arm and said hollow arm being further connected by a shock-absorbing medium.

17 . The door operator assembly of claim 12 , said second mounting bracket being mounted on the frame of the door through a spherical bearing.

18 . The door operator assembly of claim 12 , said second mounting bracket being affixed to the door.

19 . The door operator assembly of claim 1 , wherein said arm linkage is linear when the door is fully opened.

20 . The door operator assembly of claim 14 , wherein said drive arm unit and said shock absorbing door arm are integrated into an integrated arm unit.

21 . The door operator assembly of claim 1 , wherein said motor is one of: i) a low voltage brushless DC motor and ii) an ironless core DC brush motor.

22 . The door operator assembly of claim 1 , said operator unit comprising a spring assembly for storing energy on an open cycle, the energy being released during a closed cycle.

23 . The door operator assembly of claim 22 , wherein an eccentric is used to load the spring assembly and provide a torque to close the door.

24 . The door operator assembly of claim 23 , said eccentric having a symmetric profile.

25 . The door operator assembly of claim 22 , wherein a force of the spring assembly is adjustable by a spring adjustment set screw.

26 . The door operator assembly of claim 23 , wherein a profile of said eccentric is used to control a torque on the door to be a constant through a range of door motion.

27 . The door operator assembly of claim 23 , wherein a profile of said eccentric is used to provide increased torque near a closed position of the door.

28 . The door operator assembly of claim 1 , said motor and said controller being low voltage devices.

29 . The door operator assembly of claim 12 , wherein said second mounting bracket is mounted above the frame of the door, while said operator unit is mounted to the door.

30 . The door operator assembly of claim 12 , wherein said second mounting bracket is mounted on the frame of the door, and said operator unit is mounted to a face of the door.

31 . The door operator assembly of claim 12 , wherein said second mounting bracket is mounted on the door while the operator unit is mounted on the frame of the door.

32 . The door operator assembly of claim 12 , wherein said second mounting bracket is mounted on the frame of the door, and the operator unit is mounted to the door by an adaptor.

33 . The door operator assembly of claim 1 , mounted at one position selected in the group consisting of: i) above the door, ii) directly between a frame of the door and the door; iii) to an interior face of the door; iv) to an exterior face of the door; in a swing or out swing application.

34 . The door operator assembly of claim 8 , wherein said power pack temporarily stores energy for use in closing the door.