Helical ramp life-preserver
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United States of America Patent
Stats
-
May 23, 2006
Grant Date -
Jun 26, 2003
app pub date -
Jan 9, 2001
filing date -
Jan 10, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present Patent of invention 'HELICAL RAMP LIFE-PRESERVER' refers to a model of helical ramp, aimed for collective use, for immediate rescue of lives subjected to a probable fire, to be used in buildings of any height, or in places that cannot be reached by the devices currently in use, such as 'Magirus' stairs, or even in those where these devices can reach, but a probable delay to help would put in risk people's life in an eventual emergency state.
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Family
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Cited Art Landscape
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