Patent Grant
7296384
The subject invention generally relates to a shutter assembly. More specifically, the subject invention relates to an impact-resistant shutter assembly that does not fracture upon impact from debris.
As is known in the art, shutters are used for both aesthetic and functional purposes on a dwelling, such as a residential or commercial building. Aesthetically, shutters are utilized to add décor and character to the dwelling. Although these decorative types of shutters typically remain in an open position on the dwelling, they create an appearance of being a functional shutter.
On the other hand, in a closed position, the shutters are used for functional purposes. These functional shutters typically include a decorative panel and a support panel backing, or supporting, the decorative panel. These functional shutters pivot from the open position to the closed position and operate to protect windows, doors, and other openings of the dwelling during inclement weather, such as precipitation storms, wind storms, and hurricanes.
However, the shutters of the prior art are deficient. More specifically, because the decorative shutters are not intended for functional purposes, they are manufactured from raw materials that do not provide adequate protection to dwellings. The functional shutters of the prior art, even in the closed position, are deficient in that they do not satisfy ASTM Standard Specifications for “Storm Shutters” as required according to the International Building Code (IBC). These shutters are not impact-resistant. Instead, these shutters fracture upon impact from debris, such as windborne debris that is particularly active during the inclement weather. Ultimately, the conventional shutters do not adequately protect the windows, doors, and other openings of the dwelling during the inclement weather.
Some shutters have attempted to incorporate certain compositions into the decorative panel and the support panel to bolster the impact resistance provided by the shutter. However, these attempts have not compatibilized the compositions between the decorative panel and the support panel. As a result, the support panel may not be adequately bonded to the decorative panel such that the support panel does not adequately back, or support, the decorative panel, and the decorative panel frequently fractures independent of the support panel.
Due to the deficiencies in the shutters of the prior art, including those described above, it is desirable to provide a novel shutter assembly that satisfies the ASTM Standard Specifications as required by the IBC such that the shutter assembly is impact-resistant and does not fracture upon impact from debris.
An impact-resistant shutter assembly is disclosed. In one embodiment of the subject invention, the shutter assembly includes a decorative panel having an outer surface and an inner surface and a support panel having a first surface and a second surface. The decorative panel comprises a first chemical composition and the support panel comprises a fiber composition that is incompatible with the first chemical composition.
A second chemical composition is integrated into the support panel at the first surface. The second chemical composition is compatible with the first chemical composition of the decorative panel. As such, the fiber composition in the support panel can be bonded to the inner surface of the decorative panel. The fiber composition in the support panel provides impact resistance to the decorative panel to prevent fracturing of the decorative panel upon impact from debris.
In a further embodiment of the subject invention, the fiber composition in the support panel comprises at least one of polypropylene fibers, polyester fibers, and aromatic polyamide fibers. These fibers provide the impact resistance to the decorative panel to prevent any fracturing.
In yet a further embodiment of the subject invention, the decorative panel comprises polyvinyl chloride. The fiber composition in the support panel is incompatible with the polyvinyl chloride. In this particular embodiment, polyvinyl chloride is integrated into the support panel at the first surface, and a solvent cement is disposed between the first surface of the support panel and the inner surface of the decorative panel. The solvent cement bonds the fiber composition to the inner surface of the decorative panel through interaction with the polyvinyl chloride of the support panel.
Accordingly, the subject invention provides a shutter assembly that is impact-resistant and does not fracture upon impact from debris. It is also advantageous that, in the shutter assembly of the subject invention, the compositions of the support panel and the decorative panel are compatible such that the support panel can adequately bond to the decorative panel to prevent fracturing of the decorative panel upon impact from debris.
Other advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:
Referring to the Figures, wherein like numerals indicate like or corresponding parts throughout the several views, an impact-resistant shutter assembly is generally disclosed at 10. The shutter assembly 10 is used for both aesthetic and functional purposes on a dwelling 12, such as a residential building (as disclosed in
It is to be understood that one shutter assembly 10 according to the subject invention is a single shutter. That is, one shutter assembly 10 is one left side shutter or one right side shutter such that two shutter assemblies 10 are preferred to adequately protect the dwelling 12. Referring particularly to
The shutter assembly 10 includes a decorative panel 14 and a support panel 16. For the descriptive purposes of the subject invention, use of the terminology panel is synonymous with the terminology layer. The decorative panel 14 has an outer surface 18 and an inner surface 20. Although not required, it is preferred that the decorative panel 14 has a thickness ranging from 12 to 19, preferably from 13 to 16, mm. Also, the decorative panel 14 includes a first chemical composition. In preferred embodiments of the subject invention, the first chemical composition is further defined as a first thermoplastic resin composition, including polyvinyl chloride (PVC). As understood by those skilled in the art, a thermoplastic resin composition is capable of softening when heated and hardening, or re-setting, again when cooled. One suitable decorative panel 14 is commercially available as Komatex® from Kommerling of Huntsville, Ala. It is to be understood that, instead of PVC, the first chemical composition may include chemical and functional equivalents of PVC including, but not limited to, polyvinyl acetate (PVAc).
The support panel 16 has a first surface and a second surface. For clarification in the Figures, the first and second surfaces of the support panel are disclosed but not numbered. Although not required, it is preferred that the support panel 16 has a thickness of approximately 0.080 inches, or from 1.5 to 3 mm. Ultimately, the first surface of the support panel 16 is bonded to the inner surface 20 of the decorative panel 14. This bond is described additionally below. The support panel 16 includes a fiber composition that is different from, and incompatible with, the first chemical composition of the decorative panel 14. The fiber composition of the support panel 16 is incompatible with the first chemical composition in that the fiber composition cannot be directly bonded to the first chemical composition. The fiber composition comprises at least one of polypropylene fibers, polyester fibers, and aromatic polyamide fibers. These fibers cannot be directly bonded to the first chemical composition, e.g. to the PVC, of the decorative panel 14.
It is also preferred that the fiber composition of the support panel 16 further include glass fibers, i.e., fiber glass. If included, the glass fibers are preferably continuous filament glass fibers to maximize the impact resistance provided by the fiber composition to the decorative panel 14. However, although it is not preferred, the glass fibers included in the fiber composition may include common chopped fibers, and the like.
In one embodiment of the subject invention, the fiber composition of the support panel 16 includes the polypropylene fibers and the glass fibers. In another embodiment of the subject invention, the fiber composition of the support panel 16 includes the polyester fibers and the glass fibers. In a further embodiment of the subject invention, the fiber composition of the support panel 16 includes a blend of the polypropylene fibers and the polyester fibers and the glass fibers. In yet a further embodiment of the subject invention, the fiber composition of the support panel 16 includes the aromatic polyamide fibers. If included in the fiber composition, the aromatic polyamide fibers are formed from poly-paraphenylene terephthalamide, which is a nylon-like polymer commercially available as Kevlar® from DuPont of Wilmington, Del. Of course, aromatic polyamide fibers other than Kevlar® are suitable for use in the fiber composition of the subject invention.
One suitable support panel 16 is commercially available as Bulitex® from U.S. Liner Company, a division of American Made, LLC, of Ambridge, Pa. Bulitex® is a thermoplastic composite having a fiber composition that includes continuous, woven fiberglass. In addition to the continuous, woven fiberglass, the fiber composition of Bulitex® also includes the polypropylene fibers, the polyester fibers, or combinations thereof. Alternatively, Kevlar® panels may also be utilized as the support panel 16.
The shutter assembly 10 of the subject invention further includes a second chemical composition 22. The second chemical composition 22 is integrated into the support panel 16 at the first surface of the support panel 16. The second chemical composition 22 is compatible with the first chemical composition of the decorative panel 14. As such, the fiber composition of the support panel 16 can be bonded to the inner surface 20 of the decorative panel 14. The fiber composition bonds to the inner surface 20 of the decorative panel 14 as described below. In this position, where the support panel 16 is bonded to the decorative panel 14, the fiber composition in the support panel 16 provides impact resistance to the decorative panel 14 thereby preventing fracturing of the decorative panel 14 upon impact from debris.
In preferred embodiments of the subject invention, the second chemical composition 22, which is integrated into the support panel 16 at the first surface of the support panel 16, is further defined as a second thermoplastic resin composition, including PVC. As with the first chemical composition, it is to be understood that, instead of PVC, the second chemical composition 22 may include chemical and functional equivalents of PVC including, but not limited to, polyvinyl acetate (PVAc). Furthermore, although it is not required, it is most preferred that the first chemical composition and the second chemical composition 22 are identical to optimize the compatibility between the decorative panel 14 and the support panel 16.
Although the fiber composition of the support panel 16 is incompatible with the first chemical composition, the fiber composition is not incompatible with the second chemical composition 22 because the second chemical composition 22 is actually integrated into the support panel 16 at the first surface during manufacturing of the support panel 16 with the fiber composition. During the manufacturing, the second chemical composition 22 is embedded into the support panel 16. Once embedded, the second chemical composition 22 is coated on the support panel 16 at the first surface and at the second surface as described below.
The shutter assembly 10 further comprises a solvent cement 24. Solvent cements 24 are sometimes generically referred to in the art as PVC cements. The solvent cement 24 is disposed between the support panel 16 and the decorative panel 14 for bonding the fiber composition to the inner surface 20 of the decorative panel 14. The solvent cement 24 bonds the fiber composition to the inner surface 20 of the decorative panel 14 through interaction with the second chemical composition 22. More specifically, the solvent cement 24 actually melt bonds the first surface of the support panel 16 to the inner surface 20 of the decorative panel 14. The solvent cement 24 softens the second chemical composition 22 at the first surface of the support panel 16 and softens the first chemical composition at the inner surface 20 of the decorative panel 14 such that the support panel 16 and the decorative panel 14 fuse together. Melt bonding is known in the art as a chemical, as opposed to a mechanical, bond.
In certain embodiments of the subject invention, the solvent cement 24 generally includes at least one of methyl ethyl ketone (MEK), tetrahydrofuran (THF), acetone, and cyclohexanone. Preferably, the solvent cement 24 includes a blend of MEK, THF, and cyclohexanone. The solvent cement 24 may further include PVC. If included in the solvent cement 24, the PVC operates as a carrier resin for the MEK, THF, acetone, and/or cyclohexanone. One solvent cement 24 suitable for use in the subject invention is commercially available as Christy's Red Hot Blue Glue or Red Hot Clear Glue from T. Christy Enterprises, Inc. of Anaheim, Calif.
In the embodiment where the fiber composition of the support panel 16 includes the polypropylene fibers, the solvent cement 24 bonds the polypropylene fibers to the inner surface 20 of the decorative panel 14 through interaction with the second chemical composition 22, which is most preferably PVC. The polypropylene fibers provide the impact resistance to the decorative panel 14 to prevent fracturing of the decorative panel 14.
In the embodiment where the fiber composition of the support panel 16 includes the polyester fibers, the solvent cement 24 bonds the polyester fibers to the inner surface 20 of the decorative panel 14 through interaction with the second chemical composition 22, which is most preferably PVC. The polyester fibers provide the impact resistance to the decorative panel 14 to prevent fracturing of the decorative panel 14.
In the embodiment where the fiber composition of the support panel 16 includes the blend of the polypropylene fibers and the polyester fibers, the solvent cement 24 bonds the polypropylene and the polyester fibers to the inner surface 20 of the decorative panel 14 through interaction with the second chemical composition 22, which is most preferably PVC. The polypropylene and polyester fibers provide the impact resistance to the decorative panel 14 to prevent the fracturing of the decorative panel 14.
In the embodiment where the fiber composition of the support panel 16 includes the aromatic polyamide fibers, the solvent cement 24 bonds the aromatic polyamide fibers to the inner surface 20 of the decorative panel 14 through interaction with the second chemical composition 22, which is most preferably PVC. The aromatic polyamide fibers provide the impact resistance to the decorative panel 14 to prevent the fracturing of the decorative panel 14.
Ultimately, in preferred embodiments of the subject invention, no matter what the make up of the fiber composition is, the solvent cement 24 bonds the first surface of the support panel 16 to the inner surface 20 of the decorative panel 14 through interaction with PVC in the decorative panel 14 and the support panel 16.
Referring primarily to
The second chemical composition 22, most preferably PVC, is also integrated into the support panel 16 at the second surface. As a result, the fiber composition of the support panel 16 can be bonded to the inner surface 20 of the second decorative panel 26. The fiber composition, therefore, also provides impact resistance to the second decorative panel 26 to prevent fracturing of the second decorative panel 26 upon impact from debris.
If the second decorative panel 26 is included in the shutter assembly 10, then the solvent cement 24 is also disposed between the support panel 16 and the second decorative panel 26 for bonding the fiber composition to the inner surface 20 of the second decorative panel 26. The solvent cement 24 bonds the fiber composition to the second decorative panel 26 through interaction with the second chemical composition 22. More specifically, in preferred embodiments of the subject invention where the first chemical composition and the second chemical composition 22 are PVC, the solvent cement 24 bonds the first surface of the support panel 16 to the inner surface 20 of the decorative panel 14 through interaction with the polyvinyl chloride in the decorative panel 14 and the support panel 16. Similarly, the solvent cement 24 bonds the second surface of the support panel 16 to the inner surface 20 of the second decorative panel 26 through interaction with the polyvinyl chloride in the second decorative panel 26 and the support panel 16.
Referring to
It is preferred that the stile 28 is made from fiberglass. It is also preferred that the stile 28 is bonded to the outer surface 18 of the decorative panel 14 with an adhesive. Preferably, the adhesive is a methacrylate-based adhesive. One suitable methacrylate-based adhesive for use in the present invention is commercially available as Plexus AO420 from ITW Plexus, a division of Illinois Tool Works. Other suitable methacrylate-based adhesives are commercially available from Loctite Corporation, a division of Henkel Corporation.
Referring to
The channel 34 receives a strengthening element 36. In this position, the strengthening element 36 is encapsulated or sandwiched between the decorative panel 14, 26. The channel 34 and the strengthening element 36 are primarily utilized with the board-and-batten shutter assemblies 10 disclosed in
The shutter assembly 10 of the subject invention is impact-resistant, or storm-rated, because the shutter assembly 10 satisfies the pass/fail criteria outlined in:
The disclosures of the ASTM Standard Specification and Test Methods listed above are herein incorporated by reference in their entirety.
More specifically, the raised panel shutter assemblies 10 of the subject invention are approved according to these ASTM Specification and Test Methods to a maximum design span of 84 inches and a maximum design pressure of 60.0 PSF (pounds per square foot), and the board-and-batten shutter assemblies 10 of the subject invention are approved according to these ASTM Specification and Test Methods a maximum design span of 84 inches and a maximum design pressure of 60.0 PSF. Furthermore, both the raised panel shutter assemblies 10 and the board-and-batten shutter assemblies 10 were tested to a Level ‘D’ in the Large Missile Impact Test (see Designation E 1996-02).
The process to manufacture the raised panel shutter assembly 10 includes several steps. A machine operator, using a CNC machine, cuts the decorative panel 14 and the second decorative panel 26 to the correct size. The machine operator then cuts the support panel 16 to size. The support panel 16 is then laminated between the decorative panel 14 and the second decorative panel 26 using the solvent cement 24. The stiles 28 are then cut to length. An interior of the stiles 28 is then filled with the adhesive, and the stiles 28 are bonded to the outers surfaces 18 of the decorative panels 14, 26 such that the flanges 32 are disposed within their respective grooves 30. The entire raised panel shutter assembly 10 is then clamped to allow the adhesive to set.
The process to manufacture the board-and-batten shutter assembly 10 includes several steps. The machine operator, using the CNC machine, cuts the decorative panel 14 and the second decorative panel 26 to the correct size. The machine operator then cuts the support panel 16 to size. The support panel 16 is then laminated to one of the decorative panel 14 and the second decorative panel 26 using the solvent cement 24. The partially assembled board-and-batten shutter assembly 10 is then re-cut to cut the channel 34 for the strengthening element 36. The strengthening element 36 is then cut to length and disposed in the channel 34 preferably using the solvent cement 24 or some other suitable adhesive. The entire board-and-batten shutter assembly 10 is then stapled together using a suitable shutter fastener, such as stainless steel brads. Once the solvent cement 24 sets, the shutter fastener may be removed. Alternatively, the board-and-batten shutter assembly 10 may be clamped until the solvent cement 24 sets.
It is most preferred that the shutter assembly 10 of the subject invention is utilized on the dwelling 12 in combination with a locking assembly that locks the shutter assembly 10 by retaining the shutter assembly 10 in the closed position during inclement weather. Such locking assemblies are commonly referred to as a storm bar. One such locking assembly is disclosed in commonly assigned U.S. patent application Ser. No. 11/410,551, entitled “Locking Assembly For Shutters” which was filed on the same day as this application, the disclosure of which is herein incorporated by reference in its entirety. However, the shutter assembly 10 of the subject invention may be used without or with any type of locking assembly.
The invention has been described in an illustrative manner, and it is to be understood that the terminology which has been used is intended to be in the nature of words of description rather than of limitation. Obviously, many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood that reference numerals are utilized merely for convenience and are not to be limiting in any way, and that the invention may be practiced otherwise than as specifically described.
The instant application is a division of U.S. patent application Ser. No. 10/264,476, filed Oct. 4, 2002, now U.S. Pat. No. 7,174,683, which claims benefit to U.S. Provisional Patent Application Ser. No. 60/404,459, filed Aug. 19, 2002, and U.S. Provisional Patent Application Ser. No. 60/397,515, filed Jul. 19, 2002, the entire specifications of all of which are expressly incorporated herein by reference. This patent application claims priority to and all advantages of U.S. Provisional Patent Application Nos. 60/397,515 and 60/404,459, which were filed on Jul. 19, 2002 and Aug. 19, 2002, respectively.
| Number | Name | Date | Kind |
|---|---|---|---|
| 3907624 | Gravely, Jr. | Sep 1975 | A |
| 4791765 | Noggle | Dec 1988 | A |
| 5365707 | Jones et al. | Nov 1994 | A |
| 5540018 | Biggers | Jul 1996 | A |
| 5540026 | Gartland | Jul 1996 | A |
| 5617683 | Ney | Apr 1997 | A |
| 5848505 | Taylor | Dec 1998 | A |
| 5885685 | Tingley | Mar 1999 | A |
| 6004648 | Snyder | Dec 1999 | A |
| 6089300 | Woodside et al. | Jul 2000 | A |
| 6125905 | Woodside et al. | Oct 2000 | A |
| 6131354 | Thompson | Oct 2000 | A |
| 6296639 | Truckai et al. | Oct 2001 | B1 |
| 6341639 | Mullet et al. | Jan 2002 | B1 |
| 6393777 | Renfrow | May 2002 | B1 |
| 6408592 | Hourani | Jun 2002 | B1 |
| 6562435 | Brillhart et al. | May 2003 | B1 |
| 6619005 | Chen | Sep 2003 | B1 |
| 6705054 | Pelton | Mar 2004 | B2 |
| 6820385 | Horn et al. | Nov 2004 | B2 |
| 7036286 | Blackwell et al. | May 2006 | B1 |
| 7131241 | Blackwell et al. | Nov 2006 | B2 |
| 20030115817 | Blackwell et al. | Jun 2003 | A1 |
| Number | Date | Country | |
|---|---|---|---|
| 20070113496 A1 | May 2007 | US |
| Number | Date | Country | |
|---|---|---|---|
| 60404459 | Aug 2002 | US | |
| 60397515 | Jul 2002 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 10264476 | Oct 2002 | US |
| Child | 11564624 | US |
