Bridges – Gangway – ramp – or dock leveler
Patent
1996-11-20
1998-08-18
Bagnell, David J.
Bridges
Gangway, ramp, or dock leveler
182 1, E01D 1524, B63B 2714
Patent
active
057942927
ABSTRACT:
A gangway to accommodate passage from one floor, platform level, deck surface, or the like to another includes a rigid support structure defining a main frame assembly having a pair of longitudinal frame members extending in spaced, parallel relation to one another substantially along a length of the main frame assembly between opposite ends. A series of step members, each including a substantially flat top step surface, are supported transversely between the longitudinal frame members in close relation to one another; each of the step members being rotatable relative to the main frame assembly about a transverse axle. A drive gear assembly within the main frame assembly is structured for synchronized rotation of the step members relative to the frame assembly so that the top step surfaces of each of the step members remain level, at a preferred horizontal orientation, upon a change in inclination of the longitudinal frame members as one of the ends of the frame assembly moves through an arc about a main pivot axis at the opposite end. Hand rails are removably attachable along the outboard sides of the longitudinal frame members.
REFERENCES:
patent: Re32023 (1985-11-01), Harr et al.
patent: 1215827 (1917-02-01), Lord
patent: 2824582 (1958-02-01), Reitherman
patent: 4004384 (1977-01-01), Hood
patent: 4506825 (1985-03-01), Grant
patent: 5454196 (1995-10-01), Gaines et al.
patent: 5487349 (1996-01-01), Andreassen
patent: 5553421 (1996-09-01), Stratford
Bagnell David J.
Downey P.A. Robert M.
Singh Sunil
LandOfFree
Portable gangway with leveling stairs does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable gangway with leveling stairs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable gangway with leveling stairs will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1104288