| US 7,478,663 B2 | ||
| Method, apparatus and system for directionally controlling a movable partition | ||
| E. Carl Goodman, Bountiful, Utah (US); Kevin D. Banta, Highland, Utah (US); D. George Field, Pleasant Grove, Utah (US); and William Michael Coleman, Salt Lake City, Utah (US) | ||
| Assigned to Won-Door Corporation, Salt Lake City, Utah (US) | ||
| Filed on Apr. 01, 2005, as Appl. No. 11/97,101. | ||
| Claims priority of provisional application 60/558944, filed on Apr. 02, 2004. | ||
| Prior Publication US 2005/0217802 A1, Oct. 06, 2005 | ||
| Int. Cl. E05F 15/00 (2006.01) | ||
| U.S. Cl. 160—188 [160/188] | 21 Claims |
| 1. An apparatus for directionally controlling a movable partition, the apparatus comprising:
a frame member configured to be coupled to a portion of the movable partition;
at least one roller assembly coupled with the frame member and comprising at least one roller element;
a steering actuator operatively coupled with the at least one roller assembly and configured to alter an orientation of the
at least one roller assembly relative to the frame member;
at least one sensor located and configured to determine an orientation relative to vertical of at least a portion of the movable
partition and generate a signal representative thereof; and
a controller configured to receive the signal from the at least one sensor and to selectively control operation of the steering
actuator in response to the signal from the at least one sensor.
|