Revolving door
AssigneeRecord Turautomation GmbH
InventorHelmut H. Bunzl
Life of this patent
Estimating the term…
Abstract
Revolving door having at least four variable length door wings extending radially into a passageway, and being offset from one another in the direction of rotation about a central axis. Each door wing includes at least two sliding door elements slidingly movable relative to each other to vary the radial length of the door wings. Each door wing has a pivot axis disposed radially outwardly from the central axis. Adjacent door wings are pivotable about their respective pivot axes from an operating position in which the door wings extend radially into the passageway to an open position in which the sliding door elements slide relative to each other to shorten the radial length and unblock the passageway.
Claims20
A revolving door, comprising:
- a central axis of rotation;
- at least four variable length door wings extending radially into a passageway, said door wings being offset from one another in a direction of rotation about said central axis, each door wing including at least two sliding door elements slidingly movable relative to each other to vary the radial length of said door wings, said door wings being positionable in an operating position in which said door wings extend radially into said passageway;
- each door wing having a pivot axis disposed radially outwardly from said central axis, adjacent door wings being pivotable about their respective pivot axes from said operating position to an open position in which said sliding door elements slide relative to each other to shorten said radial length and unblock said passageway.
A revolving door, comprising:
- a central axis of rotation;
- at least four variable length door means extending radially into a passageway towards said central axis of rotation, each door means including at least two sliding door elements slidingly movable relative to each other to vary the radial extension of said door elements into said passageway, said door means being positionable in an operating position wherein said sliding door elements extend radially into said passageway;
- each door means including a pivot axis disposed radially outwardly from said central axis;
- each door means being pivotable about said pivot axis from said operating position to an open position in which said sliding door elements slide relative to each other to adjust said radial extension and create an opening in said passageway.
Dependencies are inferred from the claim text.