The invention relates to an architectural wall system formed of premanufactured architectural walls, which are used to subdivide open building spaces, and provide a cost-effective, space-dividing wall structure.
Commercial buildings typically include large open office areas which are divided into smaller work spaces or workstations by any of a number of space divider and panel systems that have been developed therefor. These space divider arrangements typically employ upright space-dividing wall panels which serially connect together to subdivide the office area into a plurality of smaller workstations of desired size and configuration. Such panels are typically less than floor-to-ceiling height, and cooperate with other furniture components to define an equipped workstation. These components may include work surfaces, file cabinets, shelf units and the like which mount directly on and are supported by the wall panels, and may also include freestanding furniture components such as tables, chairs and file cabinets. A wide variety of such wall panel systems are known.
These space-dividing wall panels may be preferred in many cases over the well known method of constructing “hard” or permanent architectural building walls such as by the use of studs and drywall. Known wall panel systems achieve substantially the same result of subdividing a building space, while also providing flexibility in being able to disassemble and move such walls when reconfiguring the building space.
In subdividing open office areas into individual workstations, the individual wall panel assemblies have a variety of constructions. Typically, a plurality of upright space-dividing wall panels are employed which serially connect together through two-panel straight or angled connections, or through suitable three or four-panel connections, to subdivide the office area into the plurality of smaller workstations.
In one type of arrangement, a common panel construction is used to construct all of the walls of the workstations whereby each panel is individually connectable with serially-adjacent panels through the aforementioned straight or corner connections. With such an arrangement, a group of workstations can be formed, for example, with a common central section of wall panels separating one row of workstations on one side of the central section from a separate row of workstations formed on the opposite side thereof.
In these conventional wall panel systems, provision usually is made for the mounting of various office furniture components thereto such as desks, overhead storage cabinets, shelves and the like. To accommodate these furniture components, the wall panels are typically constructed with load-bearing, structurally rigid internal frames, which bear the load of the equipment mounted thereon. These frames often include slots, channels and the like to which the furniture components as well as other wall panels are mounted. The frames then are provided with aesthetic sheet-like covers which mount to the internal frame to close off the internal cavities. Typically, these covers are removable, and do not serve to structurally rigidify the frame.
Since each workstation usually requires power as well as communications capability such as for computers and telephones or the like, the wall panels preferably have power and telecommunications cabling within interior raceways thereof. The covers provide removable access to such interior chambers for the laying and routing of cabling.
For a load-bearing wall panel system, the costs are more significant to accommodate the load-bearing needs of such system.
It is an object of the invention to provide a readily reconfigurable space-dividing architectural wall system which provides a lower cost, and more flexible solution for subdividing building spaces.
In view thereof, the present invention relates to a space-dividing architectural wall system, which comprises lower cost, but structurally capable wall panels to create work spaces in an open building area. The wall panels of such system are defined by a less-complex construction comprising elongate internal support rails preferably oriented in parallel and facing panels that are non-removably fastened to the opposite faces of the internal rails to define a structurally rigid tubular structure. The rails maintain the facing panels in spaced relation and the rails and facing panels are fixed together to define a rigid wall panel. The wall panels therefore preferably define rigid box-like structures that can be oriented horizontally and stacked one above the other, or oriented vertically and positioned sidewardly adjacent to each other. These fundamental box-like wall structures provide the basic building blocks for constructing building walls in a variety of configurations. While these walls provide advantages of conventional walls using typical construction materials, they also provide substantial flexibility in configuring and reusing the wall panels and fitting the wall panels to specific office spaces.
Since the rails are oriented in parallel and since cross-rails are not required to be cross-connected to the support rails due to the structural rigidity of the facing panels, the wall panels essentially can be open ended in the lengthwise directions of the support rails which provides internal access to these panel cavities defined between the support rails. The panel cavities allow for the laying of cabling therethrough, and the facing panels can be ported in the field such as by available cutting tools, for mounting of electrical receptacles and the like.
With this construction, the facing panels form part of the rigid panel structure in that the support rails provide some strength and rigidity but the facing panels also provide rigidity lengthwise relative to the rails and also crosswise or laterally relative thereto. Accordingly, the facing panels themselves when bonded to the support rails provide load-bearing support to the wall panel. Notably, the rigidity of the facing panels is reinforced by the bonding to the support rails which allows a particular wall panel to be oriented either vertically wherein the support rails extend vertically, or horizontally wherein the support rails extend horizontally. When oriented horizontally, the face-wise rigidity of the facing panels is able to carry vertical loads independent of the support rails which extend horizontally and therefore do not carry the vertical loads. In this instance, the support rails would structurally support the facing panels by preventing bowing or buckling of the facing panel under vertical load since the support rails are bonded to the opposite facing panels and maintains same in parallel, planar orientations relative to each other. While the facing panels can provide structural support solely by their inherent rigidity, the facing panels may also comprise additional structural support through the provision of other rigidifying means. For example, a facing panel may be provided with reinforcement structure such as internal ribs on the inside panel faces within the cavities which ribs may be attached by bonding or other means to the inside faces wherein one example of such ribs could be defined by rails having a v-shaped cross-section which are bonded to the inside panel face. The ribs also could be formed integral with the facing panel such as by corrugations or ridges formed in the panel material such as by molding or pressing of the facing panel. The ribs may extend lengthwise or crosswise or at angular orientations relative to these directions, or even be provided so as to extend in two or more of these directions, such as in a grid pattern. Preferably, the reinforcement structure on the facing panels is not fixed to the support rails, and preferably has a relatively low profile so as to keep the cavities open within the panel interior to allow for the passage of air, cabling or the like.
As an additional means of providing reinforcement to the facing panels, the cavities could be partially or completely filled with a flowable filler material such as foam that bonds to the interior cavity faces defined at least by the facing panels. The foam then hardens and rigidifies the wall panel structure without requiring cross-wise extending cross rails joined to the support rails in a rectangular frame like conventional wall panels. The foam could completely fill a cavity or could only partially fill a cavity so that cable or air passages are formed in the cavity in combination with the filler material which bonds between or forms a reinforcing bridge between the facing panels within a cavity.
The cavities also may be filled with insulation materials for sound absorption and reduction. The insulation materials need not be bonded to the facing panels.
The support rails at the opposite side edges of the facing panels also have a preferred profile which forms structurally rigid joints between two serially-adjacent wall panels. Preferably, the edge-located support rails are configured to provide an interfitting, self aligning construction with no separate or loose fasteners when joining two wall panels together. In the preferred form of the invention, adjacent wall panels could be locked together at their side edges solely by displacement of one wall panel toward the other. As such, the wall panels can be connected directly together along their longitudinal side edges in a variety of configurations. For example, the wall panels can be configured so as to extend floor-to-ceiling or terminate at shorter heights below the ceiling. Also, the wall panels can be stacked together when oriented horizontally, or positioned side-by-side when oriented vertically, or joined together in combinations of horizontal and vertical orientations. The horizontally stacked wall panels and their edge-connecting support rails allow for wall runs of panels having substantial lengths while minimizing the necessity of perpendicular support structures such as return walls, building posts or the like. These wall runs preferably can span 24 feet between the supports.
Also, the support rails preferably are configured to optionally include off-modular mounting rails that allow for the connection of various furniture components thereto in both modular and off-modular locations along the length of a wall panel.
Preferably, the facing sheets are formed of readily available and typically inexpensive sheets of known architectural or construction materials such as gypsum board, R-board, particle board, mineral board, and cement fiber board, wherein the support rails can be formed of metal studs and insulation may also be provided for improved acoustic performance.
If desired, sheet-like removable covers may be mounted over the facing sheets to vary the aesthetic appearance of the wall panels. If desired, the facing sheets can be thin structurally rigid materials provided in combination with the covers so as that the total thickness of these two layers is essentially the same as conventional facing sheets such as gypsum board or drywall. This preserves a consistent thickness for the wall panels, whether a single layer of facing sheets are provided on each panel side or else a double layer of facing sheets/covers is provided.
Since the wall panels are constructed of support rails and facing sheets which can be conventional construction materials, the wall panels may be readily field cuttable to vary the overall panel length to the space dimensions of the building space. As such, the wall panels can be readily cut to length in the field by an installer to readily adapt the wall panels to the building space and the wall panels need not be restricted to lengths defined during manufacture. This also allows the panel ends to preferably be provided with a right angled edge relative to the panel side edges, and then be field cut at angles which might be dictated by the slope of a floor and/or ceiling.
Other objects and purposes of the invention, and variations thereof, will be apparent upon reading the following specification and inspecting the accompanying drawings.
Certain terminology will be used in the following description for convenience in reference only and will not be limiting. The words “up”, “down”, “right” and left” will designate directions in the drawings to which reference is made. The words “in” and “out” will refer to directions toward and away from, respectively, the geometric center of the device and designated parts thereof. The words “proximal” and “distal” will refer to the orientation of an element with respect to the device. Such terminology will include derivatives and words of similar import.
Referring to
While the architectural wall system 10 can define individual work spaces 16, the wall system 10 also is usable in combination with conventional space-dividing wall panel systems 20 which typically include a selected number of upstanding wall panel assemblies 22 serially connected, for example, in two-panel straight or angled, or three- or four-panel corner configurations so as to subdivide an office area into the separate work spaces 16.
As to the architectural wall system 10 of the invention, the wall panels 12 of such system 10 are defined by a less-complex construction in comparison with the wall panel systems 20. The wall panels 12 may be constructed of a variety of lengths, and can be configured so as to be oriented both vertically and horizontally as seen in
In the configuration of
Referring to
The rails 30 and 31 are oriented in parallel and the facing panels 33 are inherently rigid, particularly when compressed by loads in the face-wise direction. The facing panels 33 in turn are reinforced by the rails 30 and 31 to define a structurally rigid, open-ended tubular structure. Due to the structural rigidity of the facing panels 33 which have substantial strength when subjected to face-wise loads, additional rail structure is not required like conventional wall panels which typically use a rectangular, internal, load-bearing frame. While the facing panels 33 can provide structural support solely by their inherent rigidity, it will also be understood that the facing panels 33 may also comprise additional structural support through the provision of other rigidifying means preferably provided in cooperation with the inside faces of the facing panels 33.
For example as generally seen in
As an additional means of providing reinforcement to the facing panels 33, the cavities 34 could be partially or completely filled with a flowable filler material 33-3 such as foam that bonds to the interior cavity faces defined at least by the facing panels 33.
Preferably, the panel cavities 34 of the wall panels 12 essentially are open ended in the lengthwise directions of the support rails 30 and 31, which provides internal access to the panel cavities 34 in the spaces defined laterally between the support rails 30 and 31. The panel cavities 34 therefore have opposite open ends 36 and 37 which allow for the laying of cabling therethrough, wherein the facing panels 33 are formed of machinable construction materials that can be ported or cut such as by available cutting tools. The ports or openings 101, described below, are cut into the facing panels 33 and are then used for mounting of electrical receptacles and the like on the facing panels 33.
With this construction, the facing panels 33 form part of the rigid panel structure in that the support rails 30 and 31 provide a level of strength and rigidity but the facing panels 33 also provide rigidity both lengthwise along the length of the rails 30 and 31 and also crosswise or laterally relative thereto. The facing panels 33 preferably are bonded at least to the end support rails 30 and 31 to unitize and rigidify the panel structure so that the facing panels 33 provide load-bearing support to the wall panel 12. Notably, the inherent rigidity of the facing panels 33 is reinforced by the bonding to the support rails 30 which therefore allows a particular wall panel 12 to be oriented both vertically, wherein the support rails 30 and 31 extend vertically, or horizontally, wherein the support rails 30 and 31 extend horizontally. When oriented horizontally, the face-wise rigidity of the facing panels 33 carries vertical loads independent of the support rails 30 and 31 which extend horizontally and therefore do not carry the vertical loads. In this instance, the support rails 30 and 31 would structurally support the facing panels 33 by preventing bowing or buckling of the facing panel 33 under vertical load since at least the support rails 30 are bonded to the opposite facing panels 33 and maintain same in parallel, planar orientations relative to each other. As described above, however, these cavities 34 and the facing panels 33 also may be provided with supplemental reinforcement structure such as patterns of ribs 33-1 or 33-2 or filler material 33-3.
For aesthetics, the facing panels 33 preferably have a cover sheet 40 of any suitable material affixed thereto to define the finished appearance of the panel side face 41. The cover sheet 40 may be any suitable material such as fabric or vinyl, or a paintable surface material, which materials can be selected based upon such aesthetic characteristics as color, pattern, weave, etc.
Preferably, the facing sheets 33 are formed of readily available and typically inexpensive sheets of known architectural or construction materials such as gypsum board, R-board, particle board, mineral board, and cement fiber board. This allows for the use of readily-available construction materials which can be selected based upon such structural characteristics as strength, thickness and sound dampening and transmission characteristics.
Preferably, the total thickness T (
Referring next to
The support rails 30 at the opposite side edges of the facing panels 33 also have a preferred profile which forms structurally rigid joints between two serially-adjacent wall panels 12. In this first embodiment, the edge-located end support rails 30 are configured to provide an interfitting, self aligning construction with no separate or loose fasteners. In particular, the end support rails 30 have a pair of side flanges 46 which abut against and are rigidly affixed to an inside face 47 of the facing panel 33. The side flanges 46 are joined together by a rail end wall 48 and also turn outwardly to define an edge flange 49 that protects the side edge of the facing panel 33. To provide rigidity to the joint between two serially-adjacent wall panels 12, the rail end wall 48 includes a groove 51 and rib 52 which are parallel to each other and complementary to the groove 51 and rib 52 on the adjacent wall panel 12 so that the aligned grooves 51 and ribs 52 mate with each other, which thereby mates the panels 12 together and provides a uniform joint between the two panels 12.
Also as to
While the wall panels 12 may be supported directly on the floor 66, the opposite ends of the wall panels 12 may be supported on a glide assembly 67 (
To secure the bottom panel edge, the wall system 10 preferably includes a floor-mounted channel 77 which is generally U-shaped and receives the glide assemblies 67 and bottom panel edge therein. The channel 77 comprises an L-shaped channel body 78 and a removable channel wall 79 which is fastened to the channel body 78 by fasteners 80 (
In this manner, a row of wall panels 12 can be installed together in series. At the end of a series of such wall panels 12, an end cap 83 is provided as seen in
Referring to
Referring to
If the wall panels 12 will only extend part way to the ceiling, a standard height panel, such as an 8 foot panel might be selected. However, a standard height panel might also be cut to a desired non-modular height, such as, for example, 7 feet 3 inches. These dimensions are only cited for illustrative purposes and virtually any panel height might be selected for a wall panel oriented vertically. Since the wall panels 12 can also be oriented horizontally, the horizontal length of the wall also might be adjusted by cutting the wall panels 12 to length and then positioning the wall panels 12 in the horizontal orientation.
For a vertically oriented wall panel 12 as seen in
Referring to
If desired, a corner post 105 may be used to define a two-way configuration as seen in
Referring to
In the panels 112 and 114 of
The rails 115 and 116 are oriented in parallel and the facing panels 117 and 118 are inherently rigid, particularly when compressed by loads in the face-wise direction. The facing panels 117 and 118 in turn are reinforced by the rails 115 and 116 and further reinforced by the thicker panel covers 119 and 120 to define a structurally rigid, open-ended tubular structure. Due to the structural rigidity of the facing panels 117 and 118 and the overlying panel covers 119 and 120, the wall panels 112 and 114 have substantial strength when subjected to face-wise loads. Here again, however, these facing panels 117 and 118 also may be provided with supplemental reinforcement structure such as patterns of rail-like ribs like ribs 33-1 or 33-2 or a filler material like material 33-3.
Once assembled, the wall panels 112 and 114 define interior panel cavities 122 and 123 through which cabling 124 may be routed as seen in
Referring to
Referring more particularly to the key connection between the two stacked panels 112 and 114, the key 130 is formed as a tubular extrusion having corner flanges 135 which project sidewardly a short distance. As described below, these corner flanges 135 snap lockingly engage the edge rails 115 when joining two wall panels 112 and 114 together. In the preferred form of the invention, adjacent wall panels 112 and 114 could be locked together at their side edges solely by displacement of one wall panel toward the other which thereby engages the key 130 between the two wall panels. As such, the wall panels 112 and 114 can be connected directly together along their longitudinal side edges in a variety of configurations. For example, the wall panels 112 and 114 can be configured so as to extend floor-to-ceiling or terminate at shorter heights below the ceiling. This is true whether the wall panels 112 and 114 are oriented horizontally as shown or oriented vertically as shown in
The main rail body 137 is bonded with an extruded liner 145 which lines the interior surface of the edge channel 140 and includes a pair of cantilevered, resiliently deflectable catches 146. The catches 146 deflect upon contact with the corner flanges 135 of the key 130 and then snap back to abut against the corner flanges 135 and thereby secure the key 130 to the respective wall panel 112 and 114. Upon engagement of the key 130 with both of the wall panels 112 and 114, these wall panels 112 and 114 are fixedly secured together along their contiguous panel edges. While the key 130 is provided as a separate rail-like structure, the structures of the key 130 may be integrated into at least one of the panels 112 or 114, for example, as an integrated, non-removable panel feature.
To support storage and work components on the wall panels 112 and 114, the wall panel system 110 also includes an off-modular mounting rail 150 which may optionally be fixed in a gap formed between the cover panels 119 and 120 as seen in
Referring to
The rails 160 and 161 are oriented in parallel and the facing panels 165 and 166 themselves are inherently rigid, particularly when compressed by loads in the face-wise direction. Due to the structural rigidity of the facing panels 165 and 166, the wall panels 112 and 114 have substantial strength when subjected to face-wise loads.
Once assembled as seen in
Referring again to
Referring more particularly to the key connection between the two stacked panels 161 and 162, the connection key 175 is formed as a tubular extrusion having corner flanges 180 which project sidewardly a short distance.
The edge rails 163 are formed with side flanges 181 that are bonded to the facing panels 165 and 166. The side flanges 181 join to a pair of channel sides 182 which define an edge channel along the length of the wall panel 161 and 162.
The edge rail 163 includes a pair of cantilevered, resiliently deflectable catches 183, which deflect upon contact with the corner locking flanges 180 of the key 175 and then snap back to abut against the corner flanges 180 and thereby secure the key 175 to the respective wall panel 161 and 162. Upon engagement of the key 175, the wall panels 161 and 162 are fixedly secured together along their contiguous panel edges.
Referring in greater detail to
Therefore, while the mounting rail 150 can be pushed into the gap or joint between the two wall panels 112 and 114 during or after assembly, the mounting rail 185 would be installed during assembly. Since the facing panels 165 and 166 are fixed in place, there is no need for the mounting rail 185 to be removable or be installed after assembly. Thus, the mounting rails 150 and 185 can have this different construction. Similar to each other, however, the mounting rail 185 defines a mounting slot 190 which has a narrowed mouth that opens sidewardly to receive connectors or hooks of various types of functional components, such as storage cabinets, shelves and the like.
While the wall panels 161 and 162 have the fixed facing panels 165 and 166, the wall panels 112 and 114 have greater flexibility in finishing options. Referring to
While the cover panel 192 could have perimeter edges 193 that are finished and simply abut against each other, the edges 193 also could be shaped or provided with edge strips 194 and 195 that may have a complementary male and female shape such as the tongue and groove profile seen in
Referring to
In this regard, the mounting rails 150 can be fitted into the horizontal gap defined between two vertically adjacent wall panels 112 or 114. To install the mounting rails 150, the mounting rail 150 is rotated as seen in
As to the cover panels 192 on the one side, the cover panels 192 are mounted using the hooks 141 described above which are engaged with corresponding hooks 200 (
Referring to
In this manner, the wall panels 112 and 114 can support various office components such as a work surface 209, an overhead storage cabinet 210, or other conventional furniture components while additional freestanding components (not illustrated) such as chairs, shelf units and filing cabinets can be positioned within the work area. For example, the work surface 209 might be supported on the bracket 206 which is mounted to a wall track 204. Storage cabinet 210 also can be supported on such wall tracks 204 in a modular position aligned with the joint between adjacent wall panels 112 and 114.
Also, an alternate support track 211 might be supported on the mounting rails 150 wherein the support track 211 and the associated bracket 206 can be slid to an off-modular location along the length of the mounting rail 150. In this manner, various functional components can be mounted directly on the wall panels 112 and 114. Similarly, such components also can mount on the wall panels 161 and 162 or other wall panels constructed according to the invention.
At the top of the wall panel 162, the top cap 176 is mounted to the top most edge rail 163 by a top key 216 which has corner flanges 217 that snap into the top edge rail 163 in a similar locking manner as the key 180. Also, a top mounting rail 218 is provided which is similar to rail 185 but only has a single connector flange 219 that slips downwardly into the slot 182 formed in the edge rail 163.
At the top of the wall panel 114, the top cap 131 is mounted to the top most edge rail 115 by a top key 220 which has corner flanges 221 that snap into the top edge rail 115 in a similar locking manner as the key 130. Also, a top mounting rail 150 is provided for engagement with the top edge rail 115.
As seen in
Referring to
Referring to
While the hollow interior cavities 167 of the wall panels 161 provide for the routing of cabling, these interior cavities 167 as well as any internal cavity such as cavities 34, 122, 123 and 168 also can serve the dual function of carrying conditioned air as shown in
In this regard, the building space 14 commonly may include a raised floor system 230 through which ducts 231 are routed to receive conditioned air 232 therein. One end of the duct 231 terminates at a duct junction 232 which may include an air boost fan 233 for increasing air circulation upwardly through a passage as indicated by arrow 236 to a plenum 237. The duct plenum 237 is a hollow box that has an open side which feeds the air to the ends of the interior wall cavities 167, both above and below the interior support rail 164. Thus, the cavities 167 serve as air ducts for the distribution of conditioned air through the body of the wall panels 161 or 162 as desired. Referring to
Referring to
While the interior cavities may be left open to allow for the passage of cabling and air, it also may be desirable to improve the sound reduction capabilities of the various wall panels described herein. For example,
While the insulation material 250 is provided for sound reduction, the insulation material 250 could also be illustrative of the appearance of the above-described filler material 33-3 which is provided as structural reinforcement for the facing panels 166. In this regard the material 250 could be a rigidifying foam that bonds to the inside faces of the facing panels 166 to completely fill the cavities 167 and rigidify the facing panels 166 of wall panel 162. The other wall panels described herein could also be filled with such a filler material. While the cavities 167 are completely filled, such cavities might be only partially filled and open passages formed through the filler material for the passage of cabling or air.
To prevent passage of sound at the ceiling 244, a transition panel 260 is provided which is affixed to the ceiling 244 and uses an edge rail 163 in combination with short facing panels 261. The transition panel 260 has facing panels 261 which define an interior cavity 262 filled with the above-described insulation 263, wherein the transition panel 260 joins to the top edge rail 263 of a wall panel 162 by a key 180. The joint between the transition panel 260 and the wall panel 162 is sealed by the mounting rails 185 described above. In this manner, an acoustically sealed wall structure can be formed by the various wall panels in combination with a transition panel 260.
Referring to
To fill in the ends of the second panel row, a single wall panel 161 can be cut in half to form two short panels 161-1 which are engaged with the bottom panel row by two locking keys 180-1 that are formed by cutting a locking key 180 in half. Placement of top caps 131 on the second row panels 161 would then rigidify the second row where the top caps 131 span the second row panel joints 272.
In another alternate configuration, the locking keys 180 do not need to align with the second row panels 161 of
The above construction uses common length panels 161 and keys 180. If the ends of either panel run 271 or 272 are cut to less than this panel length, which might be dictated by the building dimensions, the wall panels 161 and keys 180 can simply be field cut to fit. Therefore, all of the above described wall panel components can be provided with this flexibility in constructing panel runs and can be configured to form the wall runs shown in
With the architectural wall system described above, an improved wall panel is provided which has significant flexibility in the orientation and field-cutting of the wall panels. Additionally, the various wall panels have significant capabilities with respect to cable carrying capacity, installation of receptacles, HVAC routing and sound transmission improvements.
Although particular preferred embodiments of the invention have been disclosed in detail for illustrative purposes, it will be recognized that variations or modifications of the disclosed apparatus, including the rearrangement of parts, lie within the scope of the present invention.
Number | Name | Date | Kind |
---|---|---|---|
2891638 | Grundy et al. | Jun 1959 | A |
3312032 | Ames | Apr 1967 | A |
3667180 | Tischuk | Jun 1972 | A |
3789567 | Rae et al. | Feb 1974 | A |
3848364 | Costruba | Nov 1974 | A |
4037380 | Pollock | Jul 1977 | A |
4060294 | Haworth et al. | Nov 1977 | A |
4084367 | Saylor et al. | Apr 1978 | A |
4269005 | Timmons | May 1981 | A |
4351475 | Hudson | Sep 1982 | A |
4550543 | Valenzano | Nov 1985 | A |
4682457 | Spencer | Jul 1987 | A |
4798035 | Mitchell et al. | Jan 1989 | A |
4852317 | Schiavello et al. | Aug 1989 | A |
5125201 | Pieters et al. | Jun 1992 | A |
5277005 | Hellwig et al. | Jan 1994 | A |
5305567 | Wittler | Apr 1994 | A |
5394668 | Lim | Mar 1995 | A |
5396750 | Kleyn | Mar 1995 | A |
5444955 | Ou | Aug 1995 | A |
5644877 | Wood | Jul 1997 | A |
5784843 | Greer et al. | Jul 1998 | A |
6085485 | Murdock | Jul 2000 | A |
6105322 | Chang | Aug 2000 | A |
6128876 | Nitschke et al. | Oct 2000 | A |
6134852 | Shipman et al. | Oct 2000 | A |
6286275 | Edwards | Sep 2001 | B1 |
6314704 | Bryant | Nov 2001 | B1 |
6418671 | DeRuiter et al. | Jul 2002 | B1 |
6502357 | Stuthman et al. | Jan 2003 | B1 |
6658808 | Doherty et al. | Dec 2003 | B1 |
6834468 | Kroie | Dec 2004 | B1 |
7197853 | Little, Jr. | Apr 2007 | B1 |
7238106 | Scott | Jul 2007 | B2 |
20010013209 | Waalkes et al. | Aug 2001 | A1 |
20020088188 | Chang | Jul 2002 | A1 |
20020112443 | Shipman et al. | Aug 2002 | A1 |
20020157335 | Vos | Oct 2002 | A1 |
20020189180 | King et al. | Dec 2002 | A1 |
20030041540 | Gravel et al. | Mar 2003 | A1 |
20040060245 | Loblick et al. | Apr 2004 | A1 |
20040093805 | Underwood et al. | May 2004 | A1 |
20050108964 | Brinkkotter | May 2005 | A1 |
20060230700 | Chen | Oct 2006 | A1 |
20080209827 | Webb | Sep 2008 | A1 |
20100186326 | Cummings et al. | Jul 2010 | A1 |
20110126487 | Browning et al. | Jun 2011 | A1 |
20110258943 | De Zen et al. | Oct 2011 | A1 |
Number | Date | Country | |
---|---|---|---|
20130025220 A1 | Jan 2013 | US |