Failsafe support for height adjustable passenger loading bridges
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United States of America Patent
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-
Mar 16, 2004
Grant Date -
N/A
app pub date -
Nov 13, 2002
filing date -
Nov 13, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A failsafe support for use with a height adjustable passenger loading bridge. A main support member supports the weight of a passenger loading bridge passageway under normal operating conditions. The failsafe support includes a self-arresting mechanism for varying a length of a height-adjusting portion of the failsafe support in order to raise and lower a support portion of the failsafe support. The support portion is positionable adjacent to and spaced apart from a lower surface of the passenger loading bridge passageway, for supporting the weight of the passageway in the event of a failure of the main support member. The self-arresting mechanism prevents the passageway of the passenger loading bridge from descending to a level below the support portion.
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