Back to results
US 2011/0079468 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 closed loop of cable is installed around the pulley. The loop 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 loop is to be operatively installed is located in the area next to the base. Other embodiments are also described and claimed.
Claims13
A system comprising:
- a top pulley attached to a non-portable structure;
- a closed loop of cable installed around the top pulley;
- a traction winch around which the loop is operatively installed;
- and
- a moveable pulley around which the loop is installed, the moveable pulley to be moved relative to the winch and the top pulley to (i) increase tension in the loop as installed so that an attached load, suspended by the loop, moves away from a side of the structure and (ii) decrease tension in the loop as installed so that the attached load moves towards the side of the structure.
2 more elements
Dependencies are inferred from the claim text.