DOOR SYSTEMS COMPRISED

Brand	Owner	Address	Description
RITE SLIDE	AADG, INC.	110 Sargent Drive New Haven CT 06511	door systems comprised of a non-metal door and metal door frame;SLIDE;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Disclosed are systems and methods for operating a barrier. In one embodiment, a door operator can be opened or closed by triggering either an internal device (e.g., wall button) or an external device. In one embodiment, if an obstacle is detected when the door is opening or closing, the door will either stop or swing in the reverse direction. In yet a further embodiment, the door operator is implemented using an alternating current (AC) synchronous motor.