Self closing gate
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 29, 1980
Grant Date -
N/A
app pub date -
May 12, 1977
filing date -
May 12, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved ladder supported rescue platform for use as an evacuation tool is disclosed. The platform includes a peripheral rail system wherein a gate can be raised vertically by a worker to enter the platform from the ladder or to enter the ladder from the platform. The geometry of the gate construction is designed to assure automatic closure without any action on the part of the user. The gate is designed of parallelogram configuration and may include a snaplock to secure the gate in its closed position.
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Family
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