Patent ID: 8296980
Filing Date: 2012-10-30
Classification: G09F

Abstract:
1. An adjustable display board system, the system comprising: a frame including a first bar and a spaced-apart second bar and configured to releasably retain a display board; a travel guide mounted to a rigid structure and coupled to the frame, the travel guide configured to guide a vertical motion of the display board; a linear actuator unit including an actuator rod coupled to the frame and driven by a motor drive unit for raising and lowering the display board; first, second, third, and fourth equal-length pivot arms pivotally coupled to form a rhombus with first, second, third, and fourth pivot points, wherein the fourth pivot point is coupled to the frame for stabilizing the raising and lowering of the display board; and first, second, and third slider tracks to slidably retain the first, second, and third pivot points.