Apparatus to protect a pneumatic vacuum elevator from an overload condition

An apparatus 10 to protect a pneumatic vacuum elevator 20 from an overload condition comprising:

• a vacuum control unit 30 positioned adjacent to one or more vertically stacked cylinders 40 of the pneumatic vacuum elevator 20, wherein the vacuum control unit 30 is connected to a top cylinder 50 of the one or more vertically stacked cylinders 40 through one or more pipes 60,
• wherein the one or more pipes 60 are adapted to function as at least an inlet and an outlet with respect to the top cylinder 50, wherein the vacuum control unit 30 comprises:
• one or more vacuum motors 70 adapted to suck air from the top cylinder 50 through the one or more pipes 60 to move a cabin 80 placed inside the one or more vertically stacked cylinders 40 in an upward direction by creating a vacuum inside the one or more vertically stacked cylinders 40;
• a flow controller 90 adapted to introduce air into the top cylinder 50 through the one or more pipes 60 to move the cabin 80 in a downward direction;
• characterized in that:
• an overload tripper 100 positioned adjacent to the flow controller 90, wherein the overload tripper 100 is adapted to isolate the one or more vacuum motors 60 and the flow controller 90 from a power source when weight of the cabin 80 exceeds a predefined threshold, thereby protecting the pneumatic vacuum elevator 20 from the overload condition;
• and
• a plurality of cutouts 110 located adjacent to the overload tripper 100 and positioned on the vacuum control unit 30, wherein the plurality of cutouts 110 are adapted to enable bidirectional flow of the air between the one or more pipes 60 and an external environment to support a motion of the cabin 80 in at least one of the upward direction and the downward direction.