Tent – canopy – umbrella – or cane – Portable shelter – Floor or base structure
Reexamination Certificate
2006-10-24
2009-06-09
Dunn, David (Department: 3636)
Tent, canopy, umbrella, or cane
Portable shelter
Floor or base structure
C135S137000, C052S002130
Reexamination Certificate
active
07543594
ABSTRACT:
An air supported positively pressurized flexible material shelter for use on a surface comprising a flexible wall and a skirt connected to the wall and surrounding the flexible wall. A source of vacuum being propagated beneath the skirt along the flexible wall, to vacuum the skirt down to the surface to secure the temporary shelter to the surface. The skirt forms a continuous connection with the surface around the entire perimeter of the shelter. An optional flexible seal is provided essentially parallel to a vacuum channel and on an exterior edge of the skirt spaced from the flexible wall.
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Alex James
Dunn David
Manley Mark
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