Entrance system
AssigneeButler Manufacturing Company
InventorLawrence Biebuyck
Life of this patent
Estimating the term…
Abstract
An angulated door assembly affording reduced entry and exit time and motion therethrough. Each door is angulated relative to the adjacent walls and/or the conventional path of ingress/egress therethrough. Such an assembly configuration affords increased sealing capacity as well as convenience for the user. The door opens and closes faster by swinging less than a conventional door, which presents itself orthogonally to the path of ingress/egress. By utilizing a pair of angulated doorways, the doors self-seal against each other while providing the advantages of angulated disposition relative to the path of ingress/egress.
Claims12
An improved personnel double door system of the type wherein first and second doors are disposed relative to at least one wall of a building and adjacent one another to provide a path of personnel egress therethrough when the doors are opened outwardly, the improvement comprising:
- said first and second doors being disposed at an angle one to the other and forming an apex therebetween, wherein said apex projects outwardly from said building and said doors open outwardly from said building for personnel egress therethrough;
- said first and second doors defining, in a first, closed position, a triangle whose base is a notional plane connecting the outwardly extending corner thereof;
- and
- said path of personnel egress through said doors into and out of said building being substantially parallel to the height of said triangle defined by a straight line perpendicular to said notional plane and passing through said apex between said doors.
In a building for personnel having a side wall section, a major portion of which lies generally in a vertical exterior plane, a personnel entrance and exit portion comprising, in plan view, a generally V-shaped structure projecting outwardly from said building horizontally beyond said vertical plane, said generally V-shaped structure being substantially defined by outwardly opening door members supported along a vertical side edge thereof for horizontal pivotal movement relative to the inside corners of said generally V-shaped structure for personnel ingress and egress therethrough.
An improved personnel double doorway assembly of the type wherein first and second doors are mounted in an egress wall of a building for outwardly opening hinged movement to permit personnel ingress and egress therethrough into and out of said building, the improvement comprising:
- said first personnel door being mounted at an angle relative to said second personnel door, the point of intersection therebetween occurring at an apex which projects outwardly from said building;
- said first and second personnel doors each being disposed at an angle relative to a notional plane extending along the egress wall of said building and adapted for opening outwardly of said building;
- the distance from said apex to said notional plane and perpendicular thereto being defined as the apex offset path;
- and
- said path of personnel egress from said building through said personnel doors being substantially parallel to said apex offset path.
Dependencies are inferred from the claim text.