Abstract:
A pressure-sensitive relief panel for screened enclosures of swimming pools, spas or patios is disclosed. By securing the panels with a pressure release system the structure and panels can remain intact year round. If a weather event occurs either with or without warning the panels will automatically provide relief from loads or forces imposed by the event that could cause damage or even collapse of the structure.

Description:
RELATED APPLICATIONS 
       [0001]    This application claims the benefit of co-pending U.S. Provisional Patent Application Ser. No. 62/322,473, filed  14  Apr. 2016. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    Screened pool and patio enclosures popular in the southern United States are not capable of withstanding structural loads imposed by snow and ice common in northern climates. Additionally, screened enclosures in all climates are vulnerable to damage caused by high winds. 
         [0003]    Other systems require the user to remove, release or store the panels prior to winter or severe weather conditions. This is a cumbersome activity and typically requires use of a ladder or other elevated platform to access the means of attachment to the structure. Weather in northern climates can be wildly unpredictable with fall storms that occur before panels are stored/removed for winter or spring storms which occur after panels have bees reinstalled for the summer. In addition the storage/removal of the roof panels undesirably allows debris, leaves, insects, birds and other animals&#39; access to the enclosed space. 
       SUMMARY OF THE INVENTION 
       [0004]    By securing the roof panels with a pressure release system the roof can remain intact year round. If a storm occurs either with or without warning the structure will automatically provide relief from loads or forces that would ordinarily cause damage or even collapse. 
         [0005]    Pressure sensitive roof panels are designed to release from their normal position in plane with the roof structure when the load imposed by snow, ice or wind reaches a predetermined level protecting the entirety of the structure from damage or collapse. 
         [0006]    The claimed invention differs from what currently exists. This system allows for the roof to remain intact year round except when external loads, such as wind, snow and ice loads, cause the release of the panels. 
         [0007]    By securing the roof panels with a pressure release system the roof can remain intact year round. If a storm occurs either with or without warning the structure will automatically provide relief from loads or forces that would ordinarily cause damage or even collapse. 
         [0008]    A plurality of framing members to create the skeleton of the screen room structure are disclosed, a plurality of framed panels are provided and configured to fit between the structure framing members; each panel preferably covered in fiberglass screen mesh or similar. An angle or similar framing piece is provided to act as a limiting stop for the panel in when in plane with the structure. A hinge or hinges connect the panel to the structure. In one embodiment, magnetic pads or strips secure the panel to the limiting angles. Magnetic pads can be mounted via a spring tension system to allow the magnet to effectively gimbal to improve even contact between the magnet and receiving surface. Optionally, weather stripping can be provide to seal the panel to keep out debris, insects &amp; vermin. 
         [0009]    Framework and panels are constructed in the materials and methods such as aluminum extrusions, screw or rivet fasteners and fiberglass screening. Panels are attached using hinges which are screwed or bolted connections. Magnets are attached either by use of exterior rated adhesives or mechanically anchored with screws, rivets, etc. Once assembled, swing the hinged panels into place to engage the magnetic bond. 
         [0010]    Optionally, weather stripping is provided. A handle attached to the frame opposite the hinged side is used in engaging or disengaging the panel from the magnetic bond. 
         [0011]    It would be possible to change orientation the limiting angles by attaching them to the panels in lieu of attaching them to the main structure. 
         [0012]    To use this invention one only needs to engage the magnetic bond to secure the roof panels in place by the panels into position. The invention provides worry free use and ownership of the screened enclosure regardless of otherwise damaging weather conditions. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0013]      FIG. 1  is a top perspective view of the roof panels of the present invention; 
           [0014]      FIG. 2  is a side cross-sectional view of one embodiment of roof panels of the present invention carried by a truss structure; 
           [0015]      FIG. 3  is a close-up view of the embodiment of  FIG. 2 ; 
           [0016]      FIG. 4  shows the embodiment of  FIG. 3  carrying a snow load; 
           [0017]      FIG. 5  is a side view of the embodiment of  FIG. 4 , the roof panel pivoting under the weight of the carried load; 
           [0018]      FIG. 6  is a close-up view of a gimbal mount structure for opening and closing the roof panel; 
           [0019]      FIG. 7  is a close-up view of an alternate embodiment of a closure mechanism for the roof panel; 
           [0020]      FIG. 8  is a close-up view of an alternate embodiment of a closure mechanism for the roof panel 
           [0021]      FIG. 9  is an alternate embodiment of the present invention showing a pressure release against a wind uplift force. 
       
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0022]    Although the disclosure hereof is detailed and exact to enable those skilled in the art to practice the invention, the physical embodiments herein disclosed merely exemplify the invention which may be embodied in other specific structures. While the preferred embodiment has been described, the details may be changed without departing from the invention, which is defined by the claims. 
         [0023]    Referring now to  FIG. 1 , a top perspective view of a roof panel system  10  of the present Invention is shown. A roof panel system  10  cart be free-standing or coupled to a house for instance to be a three-season room or a swimming pool enclosure, as is known in the art. A plurality of framing members or structure framework members  1  are installed to create a screen room structure skeleton. Panels  2  are fabricated to closely fit between the framing members  1  but have adequate clearance not to contact the framing members  1 . Angles  3  are attached to the framing members  1  to limit the panel from extending past the plane of the structure framework  1 . 
         [0024]    Referring now to  FIGS. 2 and 3 , a side cross-sectional view of one embodiment of roof panel system  10  of the present invention carried by a truss structure  1  is shown. Panels  2  are attached to the structure frame  1  by hinge or hinges  4 . Magnetic pads or strips  5  are attached to the face of the limiting angle  3  and to the matching face of the panels  2 . Magnetic pads or strips  5  can be eliminated on one face of the panel  2  or limiting angle  3  by substituting a ferrous surface opposite the. magnet  5  for bond. Weather stripping  6  is attached to reduce infiltration of insects and debris in areas where there is not a seal between the magnet  5  and the limiting angle  3 . 
         [0025]    In a preferred embodiment, a latch or handle  12  can be provided coupled to a convenient location such as an underside of panels  2 . Latch  12  can be used to manipulate panels  2  open or closed as desired. 
         [0026]    In a preferred embodiment, panels  2  are sized to fit in length and width between the main structure framing members  1 . The area of individual panels  2  are used to calculate the strength of magnetic bond required of magnets  5  for the applied load. The magnetic bond is preferably designed to adequately restrain the panel  2  in the secured position during periods of normal weather conditions and allow the panel  2  to release from the secured position when applied loads due to weather conditions exceed design capacity (see, e.g.,  FIG. 4  and  FIG. 5 ). For example, in a preferred embodiment, the panels may be designed to have the panels  2  release once the applied load reaches 3 psf (pounds per square foot), but can be in excess of 5 psf if desired. For exemplary purposes, at a 5 psf design capacity, if a panel measures 7′×8′ (56 sq. ft.) the total design load is 280 lbs. with ½ of the weight supported by the hinges and ½ the weight supported by the magnets. The panel in this example would preferably require 140 lbs. of magnetic resistance force from the sum of magnets  5  for a particular panel  2  to meet the design parameters. If the applied load should exceed the design parameters, the panel  2  is allowed to pivot open (see,  FIG. 5 ). 
         [0027]    The panels  2  are attached by hinge(s)  4  to the main framework  1  and are swung into position in plane with the framework  1  engaging the magnets  5  to retain the panels  2  in place. Panels  2  may remain in place year-round, only disengaging from their magnetic bond when loading exceeds designed release pressure. 
         [0028]    Referring now to  FIG. 6  a close-up view of an alternate embodiment, a gimbal mount structure for opening and closing the roof panel  2 . The magnetic catch system  5  can be augmented by mounting the magnet  5  to the panels  2  or limiting angle  3  utilizing a spring  14  to allow the magnet  5  to gimbal in making contact with the opposing magnet or ferrous surface  5  of panel  2 . A machine bolt or pin  16  carries a string  14  (preferably conical) which allows magnet  5  to gimbal. In a preferred embodiment, hole for the machine bolt  16  is oversized (which allows for conical spring  14 ) allowing the magnet  5  to pivot in any direction to maintain flat contact with the opposing (magnet or ferrous) surface of frame box section  2 . Spring  14  is preferably attached to angle  3  with a ferrous plate  18  removably coupled with attached an upper surface of box section  2 . 
         [0029]    Referring now to  FIG. 7  a close-up view of an alternate embodiment of a closure mechanism for the roof panel is shown. In this embodiment, a hook and loop type fastener  30  is used in place of or in addition to magnet  5 . 
         [0030]    Referring now to  FIG. 8  a close-up view of an alternate embodiment of a closure mechanism for the roof panel  2  is shown. In this embodiment, a mechanical fastener comprising a spring  34  carried by angle  3 , and catch  32  carried by panel frame  2  is supplied, with frictional forces maintaining the panel frame  2  in open or closed condition, again configured to sustain a predetermined load. 
         [0031]    Referring now to  FIG. 9 , an alternate embodiment f the present invention is shown, with the system  10  designed to swing open upwardly, for instance to release against a wind uplift force. An uplift design for hurricane or tornado prone areas could be employed. 
         [0032]    The foregoing is considered as illustrative only of the principles of the intention. Furthermore, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described. While the preferred embodiment has been described, the details may be changed without departing from the invention, which is defined by the claims.