BRIEF DESCRIPTION OF THE DRAWINGS
The foregoing and other features and advantages of the present invention will become apparent to those skilled in the art to which the present invention relates upon reading the following description with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view of the outside of a screen enclosure;
FIG. 2 is a plan view of one panel element of a removable screen system from FIG. 1 and of the present invention;
FIG. 3 is detail view of a portion of the panel element from FIG. 2;
FIG. 4 is a cross-sectional view taken along lines 4-4 of structural frame, spring clip, and screen frame shown in FIG. 3;
FIG. 5 is a cross-sectional view of a structural frame, spring clip, and screen frame similar to FIG. 4, but showing a different spring clip embodiment;
FIG. 6 is a detail view of a portion of the screen panel, supplemental clip and structural frame shown in FIG. 2;
FIG. 7 is a detail view of a portion of the screen panel, supplemental clip and structural frame similar to that shown in FIG. 6, but showing two different supplemental clip embodiments;
FIG. 8 a cross-sectional view taken along lines 8-8 of a structural frame, a supplemental clip, and a screen frame as shown in FIG. 6;
FIGS. 9 and 10 are cross-sectional views along lines 9-9 and 10-10, respectively, and similar to FIG. 8, but showing alternative spring clip embodiments;
FIGS. 11 (a)-(f) are perspective views of alternative embodiments of the spring clips employed in the present invention;
FIGS. 12 (a)-(f) are side views of alternative embodiments of the spring clips employed in the present invention and shown in FIGS. 11 (a)-(f);
FIG. 13 is a perspective view of one embodiment of a supplemental clip in accordance with the present invention;
FIG. 14 is a cross-sectional view of the supplemental view of the clip shown in FIG. 13;
FIG. 15 is a perspective view of another embodiment of a supplemental clip in accordance with the present invention;
FIG. 16 is a side view of the supplemental clip shown in FIG. 15;
FIG. 17 is a plan view of one panel element of a removable screen system similar to FIG. 2 and which shows an alternative embodiment of the present invention;
FIG. 18 is a detail view of a portion of the panel element from FIG. 17;
FIG. 19 is a cross-sectional view of the latch of FIG. 18;
FIG. 20 is a perspective view of the clip shown in FIG. 19;
FIG. 21 is a plan view of one panel element of a removable screen system similar to FIG. 2 and which shows an alternative embodiment of the present invention;
FIG. 22 is a detail view of a portion of the panel element from FIG. 21;
FIG. 23 is a cross-sectional view of the latch of FIG. 22;
FIG. 24 is a top view of a latch and catch which are separated and can be used in the present invention;
FIG. 25 is a top view of a latch and catch, shown in FIG. 24, which are joined;
FIG. 26 is a partial cross-sectional view of the upper beam of the removable window shown in FIG. 21.
DETAILED DESCRIPTION OF THE INVENTION
The present invention is a screen enclosure system to maintain patios, lanais, swimming pool decks and the like in a bug and animal free condition, which includes releasably secured screen panels, uses a clip system, and affixes screening material to the screen enclosure structural frame as well as to the screen panels that are releasably secured to structural members comprising the screen enclosure. The screen material is attached to a releasable screen panel which in turn is releasably attached to the screen enclosure structural frame. The clip system of the present invention permits the quick and easy removal of one or more screen panels from the screen enclosure framing and to their reinstallation. There is no need to cut or destroy screen panels as a tropical storm approaches. A homeowner can quickly remove one or more screen panels so that the spaces left therein reduce the wind load on the screen enclosure and put it less at risk for becoming damaged by the combination of heavy rains and excessively high winds.
The screen enclosure system of the present invention utilizes a structural frame to which screen panels are attached using U or V shaped aluminum or stainless steel clips which are attached to the structural frame and which releasably secure the screen frame panels in place. The clips of the present invention provide sufficient pressure to secure the screen panels under most normal conditions so that day-to-day storms and normal pressures will not force the panels out. The screen panel system is made by affixing structural pieces to form a screen panel that in turn secures the screen material.
As can be seen in the drawings, particularly FIG. 1, a screen enclosure 10 is made up of at least one screen panel 11 which is removably attached to structural members such as vertical structural support columns 12 and 13 and horizontal structural support elements 14 and 15. The structural members are in spaced parallel relationship to one another and joined by cross members to provide a structure that will cover the pool, lanai, deck, patio, or the like or all of them, and to which screen material can be applied. The structural members will create opening into which can be inserted screen panels. Although the orientation is vertical and horizontal and creates regular rectangular openings, the invention is not limited to rectangular shapes. Rectangular shapes have a certain convenience and so are representative rather than limiting. The structural pieces are joined to form regular openings into which the screen panels with screening material are inserted and held in place. The vertical and horizontal pieces can be joined together in ways known in the art and such joining is not critical and would include bolting, screwing, welding, force fitting, and the like. The vertical structural elements can be made from metal or plastic, but aluminum metal is preferred, and will typically be hollow rectangular shaped, box beam, columns. The vertical columns will range in size from 2 inches by 2 inches up to 2 inches by 12 inches. The sizes are dependent upon the size of the screen enclosure. The horizontal structural elements are also hollow, rectangular metal or plastic, preferably aluminum, chair rails and range in size from 2 inches by 2 inches up to 2 inches by 4 inches. The structural pieces will have screw bosses to allow the elements to be joined using screws or other appropriate fasteners.
A screen enclosure 10 will have ends 16 and 18 and side 17, be attached to a house or side wall 21, and have a roof or top 19. It will enclose a pool or lanai (not shown), and may have an entrance 20. The enclosure may be made up entirely of removable, screen panels or the removable screen panels can be only part of strategic panels. Since the removal of a few key panels will reduce the effect of a tropical storm, the enclosure need not be all removable panels.
As is seen in FIG. 2, screen panel 11 is removably and/or releasably attached to structural frame members 12, 13, 14, and 15, buy screen spring clips 30. See also, FIG. 3. The screen spring clips can be attached to the structural members, such as support column 12 via a fastener 31, which can be a screw or the like. The screen panels can be retained by as few as are needed, such as, for example one on each side, but will usually require at least two and may require three on each side.
One screen panel, such as screen panel 11, will be described and used as an example, but it is understood that the description can be applied to all the screen panels employed. Each screen panel will consist of four screen panel structural elements formed from a metal or plastic, such as aluminum. The screen panel elements have a substantial U shape. The elements can be made from aluminum, steel, plastic or other appropriate structural material. For a rectangular screen frame panel, four structural elements are joined to create a rectangle to which is attached appropriate screen material. So, four screen structural elements 22, 24,26, and 28 are joined to form a rectangle and screen fabric is attached to the four elements using spline material, which is usually rubber or a rubbery polymer or plastic material, which forces the screen fabric into a spline groove which runs the length of the screen structural element, as is known in the art. For that purpose, spline grooves are formed or cut into the structural elements.
The screen frame panel is then inserted into the appropriate opening in the structural frame. The screen frame panels are affixed to the framing using novel spring clips, which will be described further hereafter. As noted earlier, although only one screen panel and clip are described, a structure will comprise multiple screen panels to fit each area of the framing and multiple clips will be employed. The number is not critical but enough are employed to provide the appropriate functionality so that the panels can be readily installed, will be held in place for normal use, and can be quickly pushed out or removed prior to any tropical storms that would be a threat.
The screen panel securing clips of the present invention are formed of resilient semirigid material, such as aluminum, stainless steel, or plastic material. Clips made of spring metal or steel are preferred. The spring clips 30, which are shown in FIGS. 11 and 12, are formed from a single strip of spring metal of any desired width, primarily depending upon the type of frame to which the spring clip is applied. The clips will have, as illustrated in FIGS. 11 and 12, two essentially straight support legs 34 and 36 and an arcuate center portion 38, which describes an arc having a normal or balanced curvature which provides a spring effect and hold the screen panels in place. The supporting legs are bent so as to lie in the same plane at least when placed in the installed position. One part of the securing clips can have a further leg 40 which is approximately perpendicular to the support leg to form a right angle flange portion which has a hole 42 in it and allows the spring clip to be fastened to the frame of the system. The curvature can comprise an arc or can be V shaped or some combination of these. This can be seen from the variety of spring clips shown in FIGS. 11 and 12. But, the curvature is not eccentric and has equal distance between the peak of the curve to each of the legs which make up the arcuate portion of the clip.
When the screen panel is moved into place, the U shaped clip will deform because the spring nature is spring metal and will allow the frame of the screen to pass over it. When the screen frame and the structural frame are aligned, the clip will reform and provide resistance to hold the screen panels in place. This can be seen in FIG. 4 where screen panel frame 26 is removably affixed to support structural element 12 using clip 30, which is a V shaped clip and is attached to structural element 12 using screw 31. Screen panel element 26 supports a screen material 50 by using a spline 54 which is pressed into a groove 52 which is cut or formed into screen panel support element 26. A similar arrangement is show in FIG. 5 which shows the use of a U shaped spring clip.
The U shape or V shape of the clip is not critical, other than the bent U shaped portion is centered so that the convex side will protrude toward the screen panel and hold it in place. The shape is not critical but is preferred that the shape be balanced so that the peak of the clip will be equal distance between the sidewalls of the screen frame panel. When in place, the clip will exert sufficient force to hold the screen panels in place, but when necessary, the screen panels are quickly and easily removed by forcing the panels out of their position. Thus, the screen panels can be removed prior to a storm. By removing some of the screen panels, the wind and rain force will flow freely through the holes that remains after removing the screen panels and such removal shall prevent the wind and rain forces from exerting undue pressure on the screen enclosure. Thus, the screen enclosures should remain intact.
In some instances, it may be necessary to provide an additional support means for the screen panels when they are installed. When the size of the screen panels is too large, the pull force that the tensioned screen exerts on the screen frame structural members, especially when the screen panel support members are made from aluminum, will cause the support members to bow or be pulled toward the screen and away from the structural support members. To counter the pull force of the tensioned screen material, it may be desirable to employ supplemental clips, such as are shown in FIGS. 13-16.
The supplemental clips are formed from resilient semirigid material, such as aluminum, stainless steel, a plastic material, and will have at least one, but could be two, formed end(s) which mechanically engage and are biasingly held within the spline grooves (or channels) formed in the screen structural element or in channels cut or formed in the structural support elements. The supplemental clips, as shown in FIGS. 13-16, describe elongated C designs (see FIGS. 13-14) or J designs (see FIGS. 15 and 16).
As can be seen in FIGS. 6 and 7, a J supplemental clip 32 is affixed to structural element 12 via a screw 37. The supplemental J clip has a curved end 60 which is shaped to engage a spline groove and a flat or straight end 62. An opening 64 is provided for a screw to affix the supplemental clip to, for example, support element 12. The opening is shown as circular or round, but it could be oval or have an extended portion between half circles. When the opening is oval or extended and the fastener or screw is loosened, the supplemental clip can slide and be moved to disengage curved end 60 from groove 52 in the screen structural element. FIG. 8 shows a supplemental J clip affixed to structural support element 12 with the elongated portion 62 having a screw fixed there through, while the curved portion 60 is engaged in groove 52. FIGS. 9 and 10 show a supplemental C clip 33 (in FIG. 9) and 35 (in FIG. 10), having curved ends 66 and 67 which are designed to engage the grooves or channels 54 in the screen structural elements or the structure support elements via the inner portions 56 and 58, as seen in FIG. 16, of the curved ends 66 and 67. The supplemental C clip can span from the groove in the screen structural element to the groove (see FIGS. 7 and 9) in the structural support member or from a groove in a screen structural element to another one in another screen structural element (see FIGS. 7 and 10).
In an alternative embodiment, the screen enclosure system of the present invention utilizes a structural frame to which screen frame panels are attached using S-shaped aluminum or stainless steel clips 80 which are shown in FIGS. 19 and 20, are attached to the structural frame, and can secure the screen frame panels in place using a latch and keeper device. The clips 80 are similar to those shown in FIGS. 11 and 12 and have a body section 82, a curved section 84 and a tail end 86. An opening 88 is provided to secure the clip to the support leg. The clip can be secured using a self-tapping screw, a rivet, or other appropriate fastener. Weather stripping 87 can be provided to abut against the tail section 86 and seal off the opening. The clips of the present invention provide sufficient pressure to secure the screen frame panels under most normal conditions so that day-to-day storms and normal pressures will not force the panels out.
The screen panel system can also be affixed to the structural pieces using a latch and keeper fastening system or a combination of clip and latch and keeper system as is shown in FIG. 19. As is further seen in Figs. A latch 90 consisting of a latch body 92 is removably joined to latch keeper 94 using a lever 96 which operates a pivot 98 to rotate a wedge 100 into and out of contact with the latch keeper 94, as is known in the art. The clip can be attached to the support leg using opening 88 and using a screw, rivet, or the like, and passing it through opening 102 of the latch or the keeper. There is no criticality as far as which is attached to which since the latch can be attached to the screen element and the keeper attached to the structural element or vice versa.
A further embodiment of the present invention is to have the screens attached by having the top horizontal structural member 15 comprise a U-shaped channel 104 so that as shown in FIG. 26, a screen element 11 can be affixed by inserting the top of the screen element 11 into the channel and then having the bottom of the screen element rest against the bottom horizontal structural element 14, as shown in FIG. 21, where the bottom screen structural element 22 is secured to the bottom structural element 14 using a latch and keeper 90 as is described above. The channel is open to receive the screen and its shape and size is not critical, but should be large enough to allow the screen element 11 to be place into the channel 104 and the screen 11 can move vertically so that it can be swung into place inside the frame and secured against the bottom structural element 14. The sides of the channel will hold the screen in place at the top and the fastener means at the bottom will hold the screen in place at the bottom. In this way, the screen can be removed by handling it from the bottom where the securing means is located. When the screen is a large piece, it is not necessary to get on a ladder to reach the top of the screen.
From the above description of the invention, those skilled in the art will perceive improvements, changes and modifications. Such improvements, changes and modifications within the skill of the art are intended to be covered by the appended claims.
Patent Application
20080060280
