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7445086 |
Ladder lock
This is a device that will provide additional security for individuals who work on extension ladders. It can be fit to any extension ladder and provide a support mechanism so that, if the ladder...
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7404360 |
Dynamically controllable, trolley brake
A trolley for traveling along a cable. The trolley may include a frame having a first end, a second end, and a rail positioned between the first and second ends. A brake pad may connect to the...
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5038536 |
System for stabilizing and accessing a high building
A high building is provided with a permanent bracing system which also serves for accessing upper levels of the building. The bracing system includes inclined guys permanently attached at mounting...
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4934277 |
Mobile aerial rapid rescue system
A rescue device for use in traversing a cable of an aerial transportation system, the rescue device including a frame carried by a pair of wheels for movement along the cable, the frame including a...
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4256199 |
Self-powered, cable-mounted trolleys and building rescue system
A self-powered, cable-mounted trolley for moving the load along a cable includes a housing, pulleys including at least one driven pulley journaled for rotation in the housing for frictionally...
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3026959 |
Fire escape apparatus
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2948348 |
Escape mechanism
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