Patent ID: 8261393
Filing Date: 2012-09-11
Classification: B21D,B63B,E04F,E04H,Y10T

Abstract:
1. A gangway comprising: a base tread; a first upright post connected to the base tread, wherein the first upright post is formed from a first continuous piece of metal defining a first aperture having a first aperture first portion configured to allow two adjacent links of a plurality of chain links to pass through the first aperture first portion and having a first aperture second portion configured to allow one of the two adjacent links exhibiting a first orientation to pass through the first aperture second portion and to prevent another of the two adjacent links exhibiting a second orientation from passing through the first aperture second portion; and a tread support operatively connected to the base tread in a manner that allows the tread support to rotate with respect to the base tread about an axis defined by the base tread, wherein the tread support is configured to connect to a distal end of the plurality of chain links.