Movable barrier operator

• US 20050140323A1
• Filed: 11/06/2003
• Published: 06/30/2005
• Est. Priority Date: 09/28/1998
• Status: Abandoned Application

• Current Assignee: The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Original Assignee: The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Inventors: Fitzgibbon, James J., Willmott, Colin, Wanis, Paul E.
• Application Number:
  US10/703,188
• Publication Number:
  US 20050140323A1
• Time in Patent Office: Days
• US Class Current: 318/468
• CPC Class Codes: E05D 15/38 for upwardly-moving wings, e.g. up-and-over doors
• CPC Class Codes: E05F 15/00 Power-operated mechanisms for wings motor-operated accessories in locks for completing closing or initiating opening of a wing E05B17/00
• CPC Class Codes: E05F 15/603 using rotary electromotors
• CPC Class Codes: E05F 15/668 for overhead wings
• CPC Class Codes: E05F 15/684 by chains
• CPC Class Codes: E05Y 2201/726 Ring gears; Internal gears
• CPC Class Codes: E05Y 2400/452 for saving energy
• CPC Class Codes: E05Y 2400/456 for programming
• CPC Class Codes: E05Y 2400/59 Travel display
• CPC Class Codes: E05Y 2400/822 Light emitters, e.g. LEDs
• CPC Class Codes: E05Y 2800/00 Details, accessories and auxiliary operations not otherwise provided for
• CPC Class Codes: E05Y 2900/106 for garages
• CPC Class Codes: Y10S 388/904 Stored velocity profile
• CPC Class Codes: Y10S 388/909 Monitoring means

Abstract

A movable barrier operator having improved safety and energy efficiency features automatically detects line voltage frequency and uses that information to set a worklight shut-off time. The operator automatically detects the type of door (single panel or segmented) and uses that information to set a maximum speed of door travel. The operator moves the door with a linearly variable speed from start of travel to stop for smooth and quiet performance. The operator provides for full door closure by driving the door into the floor when the DOWN limit is reached and no auto-reverse condition has been detected. The operator provides for user selection of a minimum stop speed for easy starting and stopping of sticky or binding doors.

Claims

1. A barrier movement operator comprising:

a barrier movement controller for controlling a position of the barrier and having a digital data output port;

a wall control comprising apparatus for generating signals to control the barrier movement controller;

a communication bus connecting the barrier movement controller and the wall control and for conveying electrical power from the barrier movement controller to the wall control for powering the functions of the wall control.

2. A barrier movement operator according to claim 1 wherein the barrier movement controller comprises apparatus for transmitting and receiving digital data at the output port.

3. A barrier movement operator according to claim 1 where data is communicated and power is conveyed via two conductors of the communication bus.

4. A barrier movement operator according to claim 3 wherein the communication bus comprises two conductors.

5. A barrier movement operator according to claim 1 wherein the barrier movement controller stores protocols for digital data communication via the communication bus.