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US 2009/0211844 A1Published application
Method and apparatus for reaching from outside an upper level of a tall structure
AssigneeExterior Elevator, LLC
InventorMarvin M. May
Life of this patent
Estimating the term…
Abstract
An embodiment of the invention is directed to a system having a pulley attached to a building. A length of cable is installed around the pulley. The cable is of sufficient length so as to reach, when deployed outside of the building, below the pulley to where emergency personnel gather in an area next to a base of the building (when responding to a disaster situation in the building). A winch around which the cable is to be operatively installed is located in the area next to the base.
Claims4
A system comprising:
- a pulley attached to a non-portable structure;
- a single length of cable operatively installed around the pulley;
- a load attached to a first end of the cable;
- a traveler pulley attached to a second end of the cable;
- a traction winch located in an area next to a base of the structure, the traction winch being operable upon the cable to raise the attached load from the area next to the base and to lower the attached load back to the area next to the base;
- and
- a deflector pulley coupled to the attached load, to move with the attached load as the attached load is lowered and raised through operation of the traction winch, wherein the cable extends down from the pulley (1) on one side through the traveler pulley and then around the winch and then up to and around the deflector pulley and then to the attached traveler pulley, and (2) on another side to the attached load.
4 more elements
Dependencies are inferred from the claim text.