Patent ID: 7264433
Filing Date: 2007-09-04
Classification: B60P,Y10S

Abstract:
1. An access system, comprising: a frame including opposite first and second sides; a transfer member movably mounted to the frame; a first drive assembly positioned towards the first side of the frame; a second drive assembly positioned towards the second side of the frame; a linking member connecting the first drive assembly and the second drive assembly to maintain the first and second drive assemblies simultaneously in one of a manual mode or an automatic mode; and, a control assembly selectively engageable to one of the first drive assembly, the second drive assembly and the linking member, wherein: the first drive assembly includes a first drive chain mounted to the frame and a first motor coupled to the first drive chain, the first drive chain being fixed and the first motor being movable along the first drive chain when the control assembly is engaged to one of the first drive assembly, the second drive assembly and the chain; and the second drive assembly includes a second drive chain mounted to the frame and a second motor coupled to the second drive chain, the second drive chain being fixed and the second motor being movable along the second chain drive when the control assembly is engaged to the one of the first drive assembly, the second drive assembly and the chain.