Flexible or portable closure – partition – or panel – Framed type – Two superimposed frame elements – fabric clamping
Reexamination Certificate
1999-10-12
2001-07-24
Johnson, Blair M. (Department: 3634)
Flexible or portable closure, partition, or panel
Framed type
Two superimposed frame elements, fabric clamping
C160S371000, C160S378000
Reexamination Certificate
active
06263949
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a screen attachment system for covering openings such as windows and doors. More particularly, the present invention relates to a heavy duty screen assembly that is resistant to hurricane force winds and associated flying debris, burglars and vandals.
BACKGROUND OF THE INVENTION
Devices for protecting windows from inclement weather, such as hurricanes and tornadoes, are known. One conventional product utilizes a perforated steel panel that is stored in an open position away from the window area and is only moved to a protective position when needed to protect the window. Thus, a user needs to reposition each perforated steel panel to a protective position over each window when a storm threatens. There are a number of drawbacks to the prior art window protection device including the impracticality of using such a device on high rise buildings and other multiple story buildings. In addition, since the perforated steel panel is stored away from the window area, it is unable to otherwise protect the window during normal weather conditions. Further, if a user is away when a storm develops or a storm develops quickly, then the prior known window protection device is out of position to protect the windows. Further, the perforated steel panel of the prior art is not esthetically pleasing and is susceptible to corrosion.
Other various devices for securing a screen to a frame for covering a window or door opening have been developed. However, none of the prior art screens for windows and doors have been developed for protecting against hurricane force winds and associated flying debris. As a result, the prior known screen systems are not strong enough to withstand the forces associated with such severe weather conditions.
SUMMARY OF THE INVENTION
The present invention relates to a screen assembly for resisting hurricane force winds and associated flying debris having a frame that defines an opening and includes an exterior face and an interior face. A screen mounting portion is provided on the frame and includes a base and at least one side wall. At least one retainer bar is provided for cooperating alignment with said screen mounting portion. A screen for covering the opening is positioned on a screen mounting portion and is sandwiched between the frame and the retainer bar. In addition, a plurality of fasteners are positioned relative to the retainer bar such that the retainer bar pivots relative to the screen mounting portion as the fasteners are tightened so as to draw the screen tightly across the opening.
In addition, the present invention contemplates using a high tensile stainless steel mesh screen having wire for resisting high forces associated with severe weather conditions. For example, the wire can have a diameter of at least approximately 0.020 inch. Preferably, the wire is approximately 0.028 to 0.047 inch diameter for resisting high impact forces. In addition, the retainer bar of the present invention includes a cross member that is positioned at an oblique angle relative to the base of the screen mounting portion. The retainer bar can further include one or more barbs for securely capturing and holding the screen both during and after assembly. In addition, one or more frame barbs can be provided in the screen mounting portion of the frame to further assist in securely holding the screen in place.
The retainer bar preferably has a generally H-shaped cross-section including the cross member connected between first and second laterally spaced apart arms and legs. In addition, the first and second legs are offset longitudinally such that one leg extends further than the other leg and assists in creating a pivot motion for the retainer bar. A fastener cover is also contemplated to be mounted to the retainer bar for improved aesthetics.
Accordingly, the present invention provides a heavy-duty screen that can resist hurricane force winds and associated flying debris. For example, the screen of the present invention can resist the force of a two-by-four stud of lumber propelled at the screen at a force comparable to that which would be encountered under hurricane wind conditions. The screen of the present invention is designed to always be in position to cover and protect a window or door and eliminates the need for timely user intervention as discussed in the background section above.
Still further, the present invention provides improved aesthetics for year round use and utilizes stainless steel to prevent corrosion that is typically encountered in coastal locations near an ocean where hurricanes commonly prevail. The screen system also protects against insects and vandals.
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Guthrie Jr. William J.
Johnson Blair M.
Rader & Fishman & Grauer, PLLC
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