Matches 1 - 8 out of 8


Match Document Document Title
7377080 Stowable spiral staircase system for overhead space access  
A staircase system (2) includes a rail element (40) and multiple stair elements (42). Baluster elements (44) are coupled to the rail element (40) and to the stair elements (42). A center support...
4969301 Relatchable launch restraint mechanism for deployable booms  
A deployable boom is constructed of springly flexible members so that it is self-biased toward a long length deployed state. A drive mechanism is operative to actuate a reel and lanyard device to...
4406097 Telescopic mechanism  
A telescopic boom arrangement comprises an innermost member, a plurality of intermediate tubular sections 12, and an outermost tubular member, each nested together, the arrangement being adapted...
4261434 Fire escape device  
A device is described which provides egress for persons trapped in burning buildings. The invention comprises a portable supportive base structure having attached thereto a plurality of...
4024595 Linkage bridge  
A linkage bridge consisting of a plurality of links rotatably coupled to form an elongated structural platform, each having a rotational stop to form an elongated structural platform and being...
3831711 EMERGENCY ESCAPE DEVICE FOR HIGH RISE BUILDING  
A transport or escape device, particularly adaptable for use in modern high rise buildings, and skyscrapers, as an escape route for use in the rescue of people who may be trapped and prevented...
3397546 Roll out-roll in dock  
2961060 Extensible ladder and scaffold construction  
Matches 1 - 8 out of 8