N/A
A whiteboard is a flat surface having a high smoothness or glossiness that can be written upon or otherwise marked using a non-permanent marker and then wiped clean. Other terms for such a whiteboard include dry erase board and dry erase whiteboard. Whiteboards have become ubiquitous in classrooms, offices, and other institutions.
An armored whiteboard device is provided that can be used as both a whiteboard and a protective device for ballistic projectiles.
The armored whiteboard device includes a markable surface that can form all or part of a strike face and a ballistic protection layer attached to the strike face. Handles on one side allow the device to be held in one position for writing upon the markable surface and in another position for protection against penetration by a projectile. A markable surface can be provided on both sides of the whiteboard device.
The invention will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings in which:
The disclosures of U.S. Provisional Patent Application No. 61/753,177, filed on Jan. 16, 2013, U.S. Design Patent Application Ser. No. 29/446,050, filed on Feb. 20, 2013, U.S. Design Patent Application Ser. No. 29/446,070, filed on Feb. 20, 2013, and U.S. Design Patent Application Ser. No. 29/446,073, filed on Feb. 20, 2013, are all incorporated by reference herein.
Referring to one embodiment illustrated in
The surface layer 16 forms a strike face 36 on the side 22, which includes the markable surface 32. The one or more handles 28 on the opposite side 24 allow the device to be held in one position for writing upon the markable surface 32 (
Each of the markable surfaces 32, 34 is comprised of a substrate that can be written on with, for example, a dry erase, non-permanent, or permanent marker and then wiped clean. The markable surface substrate comprises in whole or in part the surface layer 16 and can be affixed to one side of the ballistic protection layer 14 in any suitable manner, for example, with an adhesive layer 26, as illustrated in
As illustrated in
The markable surface(s) 32, 34 can be formed from a variety of substrate materials. In one embodiment, a markable surface is comprised of a film, or two or more layers of films, of poly(ethylene terephthalate) (PET). The PET film can be opaque or transparent. Opaque films are typically white, as markings in black marker are easily visible on a white surface. However, films in other colors can be used. Typically, an opaque film is covered with a transparent film. Transparent films are also useful with inserts placed behind the film, described further below.
Ceramic, glass, enamel, or porcelain surfaces can also be used for the markable surface substrate. These materials are particularly notable for not absorbing dry erase or permanent markers. In one embodiment, a ceramic or glass can be fired onto a steel layer, for example, the intermediate layer 38. The steel layer can be affixed to the ballistic protection layer with an adhesive layer 26 or in any other suitable manner.
The markable surface substrate can also be comprised of a high gloss paint layer on a suitable intermediate layer, such as a metal layer. A melamine layer can also be used for the markable surface substrate.
The ballistic protection layer 14, which may also be referred to as a catcher layer, can be comprised of a composite material of fibers embedded in a matrix. The fibers can be in the form of fabric sheets of woven or unidirectional fibers. The stacked sheets can be arranged in any suitable orientation of the fibers, such as unidirectional sheets alternating 0°, 90°, etc. The sheets can be stacked and laminated together along with the adhesive layer(s) and the substrate materials for the markable surface(s).
In one embodiment, the ballistic protection layer 14 is comprised of an ultra high molecular weight polyethylene fiber material in a high binding resin, such as a urethane resin. One commercially available suitable material is DYNEEMA® HB-26 material. SPECTRA® material is another commercially available material that may be suitable. Other suitable materials for the ballistic protection layer include composite materials based on fibers of fiberglass, aramid or para-aramid fibers such as KEVLAR® or TWARON®, S-glass, nylon, or carbon. Combinations of fibers can also be used. Resins can be thermoset or thermoplastic resins.
The particular material(s) for the ballistic protection layer 14, the number of laminations, the areal density, and the thickness of the ballistic protection layer can be selected, configured, and sized to prevent penetration by a particular threat level, such as a hand gun, shot gun, or an assault rifle, or a particular National Institute of Justice threat level or a STANAG performance level. For example, a ballistic protection layer of DYNEEMA® HB-26 material, laminated under heat and pressure, having a thickness of 0.20 inch and an areal density of 1.0 lb/ft2 (4900 g/m2) is sufficient to meet the National Institute of Justice Threat Level IIIA. A greater thickness and/or areal density would provide greater protection. The National Institute of Justice publication “Ballistic Resistance of Body Armor NIJ Standard-0101.06,” available on the National Institute of Justice website www.oip.usdoj.gov/nij, is incorporated by reference herein.
The strike face 36 and ballistic protection layer 14 can be manufactured in any suitable manner. In one embodiment, the ballistic protection layer, for example, layers of DYNEEMA® material, an adhesive layer and a PET layer are laid up in a press. Heat and pressure are applied to melt the adhesive, and the lamination is then cooled. An acrylic adhesive can be used. In one embodiment, a low melt thermoplastic adhesive can be used that, after the initial application of heat and cooling, converts to a thermoset material. NOLAX® adhesive is a suitable adhesive of this type.
The edging material can be any suitable material, such as a vinyl material. A commercially available self-gripping edge trimming, such as McMaster #24175K45, is suitable.
As noted above, the whiteboard device can include one or more handles 28 on one side 24, which may or may not include a markable surface. Handles enable the whiteboard device to be used conveniently as a hand-held mobile whiteboard. The handles allow the whiteboard to convert readily to a protective device. During use as a whiteboard, one hand can hold the whiteboard device by one of the handles, and the other hand can write on the markable surface. See
In one embodiment, three handles 40a, 40b, 40c are provided arranged in parallel and aligned across a midsection of the side 24. The middle handle 40a can be used when a person is writing on the markable side of the device. The outer handles 40b, 40c can be used when holding the device in a protective position.
The handles can be affixed to the whiteboard device in any suitable manner. In one embodiment, two straps or bars 42 are placed in parallel extending from edge to edge across the surface 18 of the planar device 12. The outer handles 40b, 40c are attached near the edges of the planar device via fasteners, such as screws or bolts 44, that extend through the layers of the planar device to the strike face side 16. The middle handle 40a can be attached directly to the straps 42 with fasteners 46 that attach only to the straps. In this manner, the fasteners 44 only protrude minimally to the strike face side 16, minimizing the decrease in writing surface area. Soft pads 48 can be affixed to the surface adjacent each of the handles to protect the user's knuckles when gripping a handle.
The handles can be manufactured from any suitable material. In one embodiment, the handles are formed from a webbing material of, for example without limitation, nylon or polyester. The webbing material can be covered with a rubber protective covering. The covering can include gripping features, for example, molded into the rubber material.
As noted above, the markable surface(s) 32, 34 can be provided in any desired color, not just white. Similarly, the markable surface(s) can include permanent designs printed thereon. For example, for classroom applications, a design comprising ruled lines for writing letters or numbers can be provided. In other examples, designs comprising a blank calendar form or various game boards can be provided. It will be appreciated that the term “whiteboard” includes surfaces having other colors besides white and/or including designs.
In one embodiment, the whiteboard device can include a narrow slot 60 formed in the planar device behind and parallel with the transparent markable surface 32 through an opening along an edge 62, generally an upper or side edge. See
A hook 140 can be provided upon which the armored whiteboard device 10 can be hung for use as a whiteboard. See
In another embodiment, the armored whiteboard device 10′ can be hung on a mounting or hanging mechanism 240 that includes standoffs 242 that fit through corresponding cutouts 262 through the planar device 12′. The cutouts are located near the corners of the white board device in registration with the standoffs 242. Each standoff 242 is a rod 244 mounted at one end in any suitable manner (for example, with a mechanical fastener 246 such as a screw) to a standoff mounting bar 245 attached to a wall, stand, or the like. A head 248 and a reduced neck 252 are provided at the other end of the rod. Each cutout 262 in the planar device includes a larger opening 264 and at least one smaller opening 266 connected by a pinch point 268 having a width less than the diameter of the smaller opening. The diameter of the larger opening 264 is greater than the diameter of the head 248 of the standoff rod 242. The diameter of the smaller opening 266 is less than the diameter of the head 248 and greater than the diameter of the neck 252. The width of the pinch point 268 is equal to or slightly smaller than the diameter of the neck 252. To mount the whiteboard device 10′, the larger opening 264 of each of two cutouts 262 is slipped over the head 248. The planar device 12′ is slid so that the neck 252 lies within the smaller opening 266 and the underside of the head 248 can abut against the surface layer 16′. The pinch point 268 provides a friction fit with the neck 252 to provide a lock to retain the rod 244 firmly within the smaller opening. When hung with this mounting mechanism, the whiteboard device is stable during use a as whiteboard. The whiteboard can also remain on the standoffs when struck by a ballistic projectile of the threat level for which the whiteboard device is designed. The whiteboard device can be readily removed by giving the planar device a firm tug in the direction of the larger opening. When removed, the whiteboard device can be held as a protective device as described above. The cutouts 262 can include a second smaller opening 266′ connected to the larger opening 264 via a second pinch point 268′ at right angles to the first smaller opening 266 and pinch point 268 to allow the whiteboard device to be mounted in either a landscape or a portrait orientation. The standoff mounting bar 245 and standoffs 242 can be located so that the whiteboard device can cover a door or a window. This mounting or hanging mechanism is particularly useful with larger whiteboard devices.
Circuitry 150 can be embedded in the whiteboard device 10 to facilitate various electronic functions. See
Also, if a projectile penetrates the strike face, for example, breaking a circuit, the communication-enabled whiteboard device can transmit a signal to a network to so indicate and to provide data identifying the whiteboard device's location. The circuitry can also incorporate an emergency call-for-help device. The call feature can be automated, so that an emergency call is transmitted if the whiteboard device is hit by a projectile. The device can also incorporate an emergency button or cord. The whiteboard device can be trackable using suitable circuitry. The circuitry can be located in the strike face or in an enclosure behind the strike face. A suitable power source, such as a battery, is also provided.
Referring to
In another embodiment, the whiteboard device can include features such that visual perception of the whiteboard device can create a tactical deception or diversion. For example, graphics or one or more mirrors can be located on parts of the strike face, so that an intruder sees something unexpected.
In another aspect, the armored whiteboard device can be embodied in the form of a clipboard device 110, illustrated in
It will be appreciated that the various features described herein can be combined with each other in various ways. The device can incorporate further layers of various materials. The invention is not to be limited by what has been particularly shown and described, except as indicated by the appended claims.
This application claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Patent Application No. 61/753,177, filed on Jan. 16, 2013, the disclosure of which is incorporated by reference herein. This application claims the benefit under 35 U.S.C. §120 of U.S. Design Patent Application Ser. No. 29/446,050, filed on Feb. 20, 2013, U.S. Design Patent Application Ser. No. 29/446,070, filed on Feb. 20, 2013, and U.S. Design Patent Application Ser. No. 29/446,073, filed on Feb. 20, 2013, the disclosures of all of which are incorporated by reference herein.
Number | Name | Date | Kind |
---|---|---|---|
D23933 | Odgers | Jan 1895 | S |
1361678 | Buck | Dec 1920 | A |
D164008 | Loyd | Jul 1951 | S |
4648189 | Michel | Mar 1987 | A |
D298489 | Sornborger | Nov 1988 | S |
D354087 | Dunlap et al. | Jan 1995 | S |
5422155 | Spence, Jr. | Jun 1995 | A |
5527568 | Boone et al. | Jun 1996 | A |
D535256 | Fort et al. | Jan 2007 | S |
D623693 | Hoch et al. | Sep 2010 | S |
D677257 | Andre et al. | Mar 2013 | S |
Entry |
---|
HB26 Product Specification Sheet, Dyneema, Jun. 2011. |
HB50 Product Specification Sheet, Dyneema, Jun. 2011. |
BT10 Product Specification Sheet, Dyneema, Jun. 2011. |
Ballistic Resistance of Body Armor, NIJ Standard-0101.06, US Department of Justice, Office of Justice Program, National Institute of Justice, Jul. 2008. |
Number | Date | Country | |
---|---|---|---|
20140199678 A1 | Jul 2014 | US |
Number | Date | Country | |
---|---|---|---|
61753177 | Jan 2013 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 29446050 | Feb 2013 | US |
Child | 13832922 | US | |
Parent | 29446070 | Feb 2013 | US |
Child | 29446050 | US | |
Parent | 29446073 | Feb 2013 | US |
Child | 29446070 | US |