Door barriers
First Claim
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1. A horizontally traversing door barrier for covering and uncovering a doorway, said barrier comprising;
- a flexible material having one vertical end attached to a side of said doorway for its full height,a cylindrical shaped vertical spool with a length approximately that of said doorway'"'"'s height and upon which said material is rolled and unrolled,a carrier member which rollably engages and horizontally traverses upon a main track guide horizontally mounted above said doorway,a vertical shaft rotationally engaging said member and pivotably engaging the upper end of said spool,a coiled torsion spring circumscribing and attached to said shaft for applying continuous torque to said spool,a hollow rectangular shaped housing which circumscribes said spool and rolled material for its total length and which is secured to said member,a lengthwise slot within said member through which said material freely traverses, andtension guides at the lower end of said member for rollable engagement of said spoolsuch that as said member, spool and housing horizontally traverse upon said guide, said material is rolled or unrolled upon said spool and respectively uncovers or covers said doorway.
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Abstract
The invention is a horizontally operated door barrier which presents virtually an impenetrable doorway barrier while maintaining ease of personnel access through the portal. The invention consists of a movable vertical spool upon which is wrapped a material or screen for covering the doorway. The spool moves laterally across the doorway, rolling or unrolling the screen wrapped thereon, thereby uncovering or covering the doorway. The barrier can be used to prevent passage of insects, moisture, heat, dust and like environments.
45 Citations
9 Claims
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1. A horizontally traversing door barrier for covering and uncovering a doorway, said barrier comprising;
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a flexible material having one vertical end attached to a side of said doorway for its full height, a cylindrical shaped vertical spool with a length approximately that of said doorway'"'"'s height and upon which said material is rolled and unrolled, a carrier member which rollably engages and horizontally traverses upon a main track guide horizontally mounted above said doorway, a vertical shaft rotationally engaging said member and pivotably engaging the upper end of said spool, a coiled torsion spring circumscribing and attached to said shaft for applying continuous torque to said spool, a hollow rectangular shaped housing which circumscribes said spool and rolled material for its total length and which is secured to said member, a lengthwise slot within said member through which said material freely traverses, and tension guides at the lower end of said member for rollable engagement of said spool such that as said member, spool and housing horizontally traverse upon said guide, said material is rolled or unrolled upon said spool and respectively uncovers or covers said doorway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification