Abstract:
A modular pole system is used to support office systems or equipment to facilitate point of sale retail functions. An elongate pole has a plurality of channels that receive locking nuts to support the equipment in place. Electronic equipment including such items as scanners, printers, displays, and telephones may be placed on specialized equipment mounting structures proximate the pole or with use of extension arms to space the equipment away from the pole.

Description:
RELATED APPLICATIONS 
     This application claims the benefit of priority of U.S. Application Ser. No. 61/430,880 filed Jan. 7, 2011, which is incorporated herein by reference in its entirety. 
    
    
     BACKGROUND 
     Electronic devices have become indispensable to the modern workplace. These devices typically have defined functions, such as a display, a printer, and a keyboard. It is problematic that deployment of this equipment occupies surface area, which may not be available at a particular workstation. Accordingly, the art has developed various systems to densify the deployment of these devices over a particular surface area. Unfortunately, this densification may inconveniently position the devices, and the systems may lack flexibility if an equipment upgrade or change is required. 
     U.S. Pat. No. 7,063,296 shows a swinging brace that is adapted to carry an electronic device. The brace has three pivots for a full range of motion abutting a rail mount. United States Patent publications 2010/0213151 and 2008/026510 show similar rail mounting systems. U.S. Pat. No. 6,783,105 shows a display arm that is extensibly received in a channel to facilitate a vertical height adjustment. An electronic workstation pivots forward. 
     SUMMARY 
     The presently disclosed instrumentalities overcome the problems discussed above and advance the art by providing an equipment mounting structure in a modular form that that is quickly installed, easily alterable as to content, and selectively adjustable. 
     The equipment mounting structure includes a vertically elongate pole having at least one channel formed therein. The channel has a bight connecting a pair of opposed wings to define an inward space. Each wing has a ridge extending inwardly over the inward space towards the other wing. A mount, such as an L-bracket may be used to attach the elongate pole to a support structure, such as a ceiling or a countertop. A clamp assembly is used to mount an equipment carrier to the elongate pole. The clamp assembly does this by engaging the channel with clamping action as a selected height on the elongate pole. 
     In one embodiment, the clamp assembly may include a block presenting a through aperture, a bolt passing through the aperture, and a channel nut threaded onto the bolt to provide the binding interaction with the channel. 
     In one embodiment, the equipment carrier may be coupled with the clamp assembly through a pivot. This may be, for example, a pivotally adjustable keyboard mount that pivots in a vertical arc. Alternatively, this may be a pivotally adjustable display mount that pivots in one or both of a horizontal and a vertical arc. 
     Some embodiments may include a hollow extension arm that is used to position electronic devices laterally to the side of the elongate pole. Cables may be routed through the hollow interior of the extension arm. 
     In some embodiments, the elongate pole may have a square cross-section perpendicular to the at least one channel. A pair of channels may be formed in the wall of the elongate pole. The clamp assembly may engage both of these channels at once to enhance lateral stability of the equipment carrier. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a right rear side perspective view of an equipment mounting structure according to a first embodiment supporting a plurality of electronic devices on a vertically elongate pole; 
         FIG. 2  shows L-brackets used to support a vertically elongate pole shown in  FIG. 1 ; 
         FIG. 3  is a left, top side perspective view of a clamp assembly and an equipment carrier made ready for deployment on the vertically elongate pole of  FIG. 1 ; 
         FIG. 4  provides additional detail with respect to the clamp assembly of  FIG. 3 ; 
         FIG. 5  shows a hollow extension arm that may be used to support electronic devices to the side of the vertically elongate pole, and rout cables to the electronic devices; 
         FIG. 6  is a bottom front perspective view of a pivoting equipment carrier for retaining a keyboard; 
         FIG. 7  is a front left perspective view of an equipment mounting structure according to a second embodiment supporting a plurality of electronic devices on a vertically elongate pole; 
         FIG. 8  is a cross-sectional view of the vertically elongate pole taken along line  8 - 8 ′ of  FIG. 1 . 
         FIG. 9  is a midsectional view illustrating the operation of the clamp assembly shown in  FIG. 4 ; 
         FIG. 10  shows cable routing through the hollow extension arm of  FIG. 5 ; 
         FIG. 11  shows half of a split end cap assembly for the vertically elongate pole, the other half of the assembly being a mirror image thereof; 
         FIG. 12  shows part of a split cap assembly for the vertically elongate pole, the other half of the assembly being complementary thereto to form a square; 
         FIG. 13  shows an end cap for the vertically elongate pole, the end cap being selectively adjustable to route wires; 
         FIG. 14  shows an end cap with a duckbill extension that may be used to mount electronic equipment in a desired orientation; 
         FIG. 15  shows a monitor mount with a short arm extension; 
         FIG. 16  shows a monitor mount equipped with tilt and swivel structure to vary the position of a VESA plate; 
         FIG. 17  shows an extension arm for horizontal mounting purposes; 
         FIG. 18  shows a scanner or printer tray; 
         FIG. 19  shows a display mount; 
         FIG. 20  shows a rack mount equipped with tilt and swivel structure to vary the position of a VESA plate; 
         FIG. 21  shows a tray for holding a printer; 
         FIG. 22  shows a telephone mount pad; 
         FIG. 23  shows the telephone mount pad of  FIG. 29  residing on an extension arm of  FIG. 5 ; 
         FIG. 24  shows a personal computer and/or power brick attachment bracket; 
         FIG. 25  shows a custom mounting foot that may be used to support the vertically elongate pole; 
         FIG. 26  shows a standard mounting foot; 
         FIG. 27  shows a mounting foot that may be used to mount the extension arm of  FIG. 5 ; 
         FIG. 28  shows a keyboard tray; 
         FIG. 29  shows a keyboard tray equipped with a tilt and swivel mechanism; and 
         FIG. 30  shows a keyboard tray equipped with an extension arm. 
     
    
    
     DETAILED DESCRIPTION 
       FIG. 1  shows one embodiment of the equipment mounting structure  100 . A vertically elongate hollow pole  102  has a plurality of channels  104 ,  106 ,  108 ,  110  formed therein. Various clamp assemblies (not shown) connect these channels with mounts bearing electronic equipment, such as displays  112 ,  114  and scanner  116 . L-brackets  118 ,  120  mount the pole  102  to countertop  122  by operation of threaded fasteners  124 ,  126 . Cables for the electronic equipment may be routed through countertop  122  into the hollow interior of pole  102 , which is sealed by cap  128 . The cabling may be any cabling that is needed for operation of such electronic equipment as keyboards  112 ,  114 , display  116 , printer  118 , and scanner  122 . A hollow extension arm  130  optionally routs cabling to scanner  116  and may be used to extend sideways the operating position of scanner  116 . Pivots may be provided, such as a pivoting base  132  for display  114  facilitating selective adjustment of display  114  along horizontal arc  134 , and a pivot mechanism  136  facilitating selective adjustment of display  112  along vertical arc  138 . 
       FIG. 2  provides additional detail with respect to the L-brackets  118 ,  120 . Threaded fasteners  200 ,  124 ,  204 ,  206 ,  208  are each provided with flat nuts or channel nuts  208 ,  210 ,  212 ,  214 . By way of example, threaded fastener  200  may be placed through aperture  216  and threaded onto flat nut  208 , which is placed in channel  106  (see  FIG. 1 ). Tightening of threaded fastener  124  locks L-bracket  118  into position against pole  102 . Threaded fasteners received in apertures  218 ,  220  may be screw or bolts locking L-bracket  118  into position against countertop  122  (See  FIG. 1 ). 
       FIG. 3  shows a clamp assembly  300  that couples the electronic equipment mounts with pole  102 , as shown in  FIG. 1 . The clamp assembly  300  includes an optional mounting block  302  that may be, for example, cast or machined from a block of metal. Bolts  304 ,  306  extend through block  302  into flat nuts or channel nuts  308 ,  310 . In one embodiment, nut  308  may be received in channel  108  (see  FIG. 1 ) and nut  310  may be received in the parallel track of channel  110 . Tightening of bolts  304 ,  306  against nuts  308 ,  310  in channels  108 ,  110  provides lateral stability against tipping of electronic devices mounted on pad  312 . The mounting block  302  may be provided with apertures for receipt of bolts  314 ,  316  that couple pivot assembly to mounting block  302 . The pivot assembly has a pair of legs  320 ,  322  culminating at pivot  324 , which is bolted to plate  312 . An arced shoulder  326  facilitates pivoting motion of plate  312  along arc  328 . The pivot assembly  318  may, for example, be used to support display  112  as shown in  FIG. 1 . 
       FIG. 4  provides additional detail with respect to the mounting block  302 . The bolts  306 ,  304  are shown as allen screws, as may be received in apertures  400 ,  410 . The mounting block  302  may be provided with any number of internally threaded apertures  404 ,  406 ,  408 ,  410 , as may complement equipment mounting assemblies, which are shown by way of example as pivot assembly  318  (see  FIG. 3 ). 
       FIG. 5  provides additional detail with respect to the hollow extension arm  130  (see also  FIG. 1 ) that is used for cable management. The extension arm  130  contains holes  500 ,  502  that may receive bolts with flat nuts, such as bolt  304  and flat nut  308  shown in  FIG. 4 . These may be received in parallel tracks on a face of pole  102 . Cables (not shown in  FIG. 5 ) may pass through any of openings  504 ,  506 ,  508  into the hollow interior  510  of extension arm  130 . End caps  512 ,  514  seal the open ends  516 ,  518  of extension arm  130 . Caps  520 ,  522 ,  524  seal corresponding openings  504 ,  506 ,  508  when cables do no pass through these openings. 
       FIG. 6  provides additional detail with respect to a keyboard mount that may be used to mount keyboards  112 ,  114  (see  FIG. 1 ). A tray  600  is used to support a keyboard (not shown), which may be secured by threaded fasteners, clips or rivets (not shown) passing through apertures  602 ,  604 . A pivot  605  attaches with legs  606 ,  608  to ears  610 ,  612  proximate opening  614 . Arm  616  attaches to pivot  605  through bolts  618 ,  620 . Apertures  622 ,  624  may be used for bolting arm  616  to clamp assembly  300  (see  FIG. 3 ). 
     The instrumentalities disclosed above may be combined in any number of ways for selective positioning of electronic equipment.  FIG. 7  shows an alternative embodiment as workstation  700 . The workstation  700  includes a number of structures that are described above including, for example, pole  102 , display  112 , scanner  116 , tray  600 , L-bracket  118 , and extension arm  130 . Additionally provided items include a keypad terminal  702  and a printer  704 . Items mounted by the clamp assemblies  300  (shot shown) may be clamped at selected positions on pole  102 . The clamp assemblies may be loosened for repositioning at selected heights along path  706  and tightened to retain individual pieces of the electronic equipment at the new positions. 
     The pole  102  may be any height, and may be mounted by any means known to the art, such as by being anchored to a floor or ceiling, in addition to a countertop  122  as shown in  FIG. 1 .  FIG. 8  shows a cross-section taken along line  8 - 8 ′ of  FIG. 1  to show interior detail with respect to pole  102 . The pole  102  has a continuous wall  800  of generally square cross section presenting four faces  802 ,  804 ,  806 ,  808 . Each face presents a pair of channels, for example, channels  812 ,  814 . As illustrated in reference to channel  812 , each channel has a bight  816  connecting wings  818 ,  820 . Each wing has a corresponding protrusion  822 ,  824  extending inwardly towards one another over the inward space of channel  812 . These protrusions receive the clamping force of flat nuts inserted in the respective channels, illustrated as flat nut  210  attached to threaded fastener  124  in channel  826 . Hollow space  828  interior to wall  800  may be used to route cabling for operation of the electronic devices show above, and advantageously reduces the overall weight of pole  102 . 
       FIG. 9  is a midsectional view that provides additional detail with respect to the operation of clamp assembly  300 . Rotation of threaded fastener  124  selectively tightens flat nut  210 , which engages protrusion  900  of channel  826  to retain the clamp assembly in place. Counter rotation of threaded fastener  124  loosens flat nut  210  from this binding engagement, such that the clamp assembly  300  may be repositioned at a selected height along pathway  902 . Tightening of threaded fastener  124  secures the clamp assembly at the new position. 
       FIG. 10  shows routing of power cable  1000  through the interior of extension arm  130 . 
       FIG. 11  is a top perspective view that shows half of a split end cap assembly  1100  for the vertically elongate pole  102  (see  FIG. 1 ), the other half of the assembly being a mirror image thereof to form a square. A generally rectangular plate  1102  has two apertures  1104 ,  1106  formed for the passage of wires therethrough, and a central arc  1108 . A bottom side  1110  has raised registration bosses (not shown) to retain the cap assembly  1100  in contact with interior wall  830  (see  FIG. 8 ) of the pole  102 . 
       FIG. 12  is a top perspective view that shows part of a split cap assembly  1200  for the vertically elongate pole  102  (see  FIG. 1 ), the other half of the assembly being a mirror image thereof thereto to form a square. A plate  1202  has two apertures  1204 ,  1206  formed therethrough and a central opening  1208  for the passage of wires. The central opening  1210  has beveled wings  1210 ,  1212  connected by a central arc  1214 . A bottom side  1216  has raised registration bosses (not shown) to retain the cap assembly  1200  in contact with interior wall  830  (see  FIG. 8 ) of the pole  102 . 
       FIG. 13  is a top perspective view that shows an end cap  1300  for the vertically elongate poll  102  (see  FIG. 1 ), the end cap  1300  being selectively adjustable to route wires. The cap  1300  includes three sidewalls  1302 ,  1304 ,  1307  and a top  1308 . The sidewalls  1302 ,  1304  are provided with apertures and inwardly bent ears  1310 ,  1312 . This structure forms an interior space  1316  that circumscribes an outer wall  832  of pole  102  (see  FIG. 8 ). Fastener/nut assemblies  124 ,  210  may pass through apertures  1306 ,  1308  to retain the cap  1300  in place on pole  102  by locking in any of channels  826  such that a front opening  1318  is selectively adjustable over a height H. 
       FIG. 14  is a top rear perspective view that shows an end cap  1400  with a duckbill extension  1402  that may be used to mount electronic equipment in a desired orientation.  FIG. 14  retains like numbering of identical elements with respect to the end cap  1300  of  FIG. 13 , where it will be further appreciated that the rear wall  1307  is formed with a channel opening  1404  to facilitate the routing of cables. The duckbill extension  1402  tapers forwardly to a rounded nose  1406  that is formed with an aperture  1408  therethrough. The aperture  1408  is built to receive an upright bolt (not shown) that attaches a monitor or other equipment and serves as a pivot. It will be appreciated that the duckbill extension may be provided in any length, such as short medium or long lengths. 
       FIG. 15  is a top rear perspective view that shows a monitor mount  1500  with a short arm extension. The mount  1500  is made of a plate that is bent at a right angle to provide a rear section  1506  and the arm extension  1502 . The rear section  1506  has apertures  1508 ,  1510  formed therethrough. These apertures are made to receive fastener/nut combinations  124 ,  210  to engage channels of the pole  102  as shown in  FIG. 8  for attaching the mount  1500  to pole  102 . The arm extension  1502  tapers forwardly to a rounded nose  1512  and that is formed with an aperture  1514  therethrough. The aperture  1514  is built to receive an upright bolt (not shown) that attaches a monitor or other equipment and serves as a pivot. 
       FIG. 16  is a top front perspective view of the monitor mount  1500  equipped with tilt and swivel structure  1600  to vary the position of a Video Electronics Standards Association (VESA) plate  1602 . The VESA plate  1602  is retained ion a tilt arm with an internal bar (not shown) on axis  1604  permitting the VESA plate to tilt up or down as indicated by arrow  1608 . The aperture  1514  and bolt described in context of  FIG. 15  afford side-to-side pivoting on axis  1610  as indicated generally by directional arrow  1612 . 
       FIG. 17  is a top front perspective view that shows an extension arm  1700  for horizontal mounting purposes to hollow extension arm  130  (see  FIG. 1  and  FIG. 5 ). The extension arm  1700  includes two sidewalls  1702 ,  1704  and a top  1706 . A bight  1708  connects sidewalls  1702  and  1704  via top  1706 . Top  1706  tapers rearward towards a rounded nose  1710  that is formed with an aperture  1712  therethrough. Aperture  1712  is useful for mounting extension arm  1700  to hollow extension arm  130  through holes  500  or  502  (see  FIG. 5 ). Holes  500  or  502  may receive bolts with flat nuts, such as bolt  304  and flat nut  308  shown in  FIG. 4 . Extension arm  1700  may thereby be mounted to hollow extension arm  130  by passing bolt  304  through aperture  1712  and into hole  500  or  502  and into flat nut  308  which is within the hollow interior  510  of hollow extension arm  130 . Sidewalls  1702  and  1704  are provided with aperture  1714  in sidewall  1702 , and aperture  1716  (not shown) in sidewall  1704  which may be useful for routing cables. Extension arm  1700  is provided with apertures  1718 ,  1720 ,  1722  and  1724  in the forward part of top  1706  which are useful for mounting trays, mounts, mount pads, swivels, etc. through receiving screws or bolts, such as threaded fastener  200 , that have passed through a mounting tray, mount, mount pad, swivel, etc. and are then threaded onto a nut such as flat nut  208  (see  FIG. 2 ). Tightening of the screw or bolt engaged with a flat nut secures extension arm  1700  to the mounting tray, mount, mount pad, swivel, etc. 
       FIG. 18  is a top front perspective that shows a scanner or printer tray  1800 . Printer tray  1800  includes a bottom  1802  a first side wall  1804 , a second side wall  1806 , a third side wall  1808  and a fourth sidewall  1810 . Printer tray  1800  is generally configured as either a square or rectangle when viewed from the top or bottom perspective, where the size and shape corresponds generally to the size and shape of the article to be supported. Bottom  1802  contains apertures  1812 ,  1814 ,  1816 , and  1818 . Aperture  1812  is useful for cable routing. Apertures  1814 ,  1816 , and  1818  are useful for mounting a clamp assembly (see  FIGS. 3 and 4 ), or mounting to hollow extension arm  130  (see  FIGS. 1 and 5 ), or monitor mounts (see  FIG. 15 ). Apertures  1814 ,  1816 , and  1818  may also be useful for cable routing. First side wall  1804  contains apertures  1820  and  1822  which are useful for mounting a clamp assembly (see  FIGS. 3 and 4 ), or mounting to hollow extension arm  130 , (see  FIGS. 1 and 5 ), or monitor mounts (see  FIG. 15 ). Apertures  1820  and  1822  may also be useful for routing cables. Second side wall  1806  contains apertures  1824  and  1826  which are useful for mounting a clamp assembly (see  FIGS. 3 and 4 ), or mounting to hollow extension arm  130  (see  FIGS. 1 and 5 ), or monitor mounts (see  FIG. 15 ). Apertures  1824  and  1826  may also be useful for routing cables. 
       FIG. 19  is a top rear perspective that shows a display mount  1900 . Display mount  1900  includes a top member  1902 , and a bottom member  1904 . Top member  1902  includes a first tab  1906  and a second tab  1908 . First tab  1906  and second tab  1908  are generally perpendicular to the plane of a flat member  1910  which connects first tab  1906  and second tab  1908 . Flat member  1910  is generally rectangular and flat. Flat member  1910  includes apertures  1912  and  1914  which are useful for mounting a monitor to flat member  1910  via screws, nuts and bolts or other fasteners well known in the art. Flat member  1910  also includes aperture  1916  which is useful for routing cables. Flat member  1910  includes aperture  1918  which is useful for connect bus wires or other types of routing cables. First tab  1906  contains aperture  1920  which is useful for mounting a swivel mount or other connection to a monitor. Second tab  1908  may alternatively contain an aperture  1922 , not shown in this embodiment, which is useful for mounting a swivel mount or other connection to a monitor. Flat member  1910  is generally connected to bottom member  1904  perpendicularly with respect to the plane formed by bottom member  1904 . Bottom member  1904  contains apertures  1924  and  1926  which are useful for mounting a clamp assembly (see  FIGS. 3 and 4 ), or mounting to hollow extension arm  130  (see  FIGS. 1 and 5 ), or monitor mounts (see  FIG. 15 ). Bottom member  1902  includes a foot  1928  which is generally flat and rectangular and is generally connected to bottom member  1904  perpendicularly with respect to the plane formed by bottom member  1904  such that flat member  1910  and foot  1928  generally lie in planes that are parallel to one another. 
       FIG. 20  is a top front perspective view of a rack monitor mount  2000  equipped with a tilt and swivel structure  2002  to vary the position of a Video Electronics Standards Association (VESA) plate  2004 . The VESA plate  2004  is retained on a tilt arm with an internal bar (not shown) on axis  2006  permitting the VESA plate to tilt up or down as indicated by arrow  2008 . Rack monitor mount  2000  contains aperture  2010  (not shown). Aperture  2010  and a bolt described in context of aperture  1514  of  FIG. 15  afford side-to-side pivoting on axis  2012  as indicated generally by directional arrow  2014 . Rack monitor mount  2000  also contains apertures  2016  and  2018  (not shown) which are useful for mounting a clamp assembly (see  FIGS. 3 and 4 ), or mounting to hollow extension arm  130  (see  FIGS. 1 and 5 ) or monitor mounts (see  FIG. 15 ). Apertures  2016  and  2018  may also be useful for routing cables. Rack monitor mount allows positioning along the length of a rack attached to vertically elongate hollow pole  102 . Rack monitor mount  2000  also contains apertures  2020  and  2022  which are useful for mounting a monitor to a rack which is attached by various clamp assemblies, such as in  FIGS. 3 and 4 , to vertically elongate hollow pole  102  or to hollow extension arm  130 . 
       FIG. 21  is a top front perspective view that shows a tray  2100  for holding a printer. Tray  2100  includes a bottom  2102 , a first side wall  2104 , a second side wall  2106 , and a third side wall  2108 . Tray  2100  is generally configured as either a square or rectangle when viewed from the top or bottom perspective. Bottom  2102  contains apertures  2110 ,  2112 ,  2114 ,  2116 , and  2118 . Apertures  2110 ,  2112 ,  2114 ,  2116  and  2118  are useful for mounting a clamp assembly (see  FIGS. 3 and 4 ), or mounting to hollow extension arm  130  (see  FIGS. 1 and 5 ), or monitor mounts (see  FIG. 15 ). Aperture  2110 ,  2112 ,  2114 ,  2116  and  2118  may also be useful for routing cables. First side wall  2104  has a rearward rectangular portion that is cut-out and creates an access  2120 . Access  2120  is useful for imparting increased access to the printer. 
       FIG. 22  is a top front perspective view that shows a telephone mount pad  2200 . Telephone mount pad  2200  includes a mounting platform  2202  and a telephone pad portion  2204 . Mounting platform  2202  is generally rectangular and flat. Mounting platform  2202  contains apertures  2206 ,  2208 ,  2210 , and  2212 . Apertures  2206 ,  2208 ,  2210 , and  2212  are useful for mounting a clamp assembly (see  FIGS. 3 and 4 ) or mounting to hollow extension arm  130  (see  FIGS. 1 and 5 ), or monitor mounts (see  FIG. 15 ), or directly to vertically elongate hollow pole  102  via screws, nuts and bolts or other fasteners well known in the art. Telephone pad portion  2204  is depicted as a rectangular shape with a dovetail platform in the embodiment of telephone mount pad  2200  depicted in  FIG. 22 , however telephone pad portion  2204  may be of any shape consistent with placing a telephone upon it. In one embodiment, telephone pad portion  2204  includes containment tabs  2214  and  2216 . Containment tabs  2214  and  2216  are useful for maintaining the position of a telephone lying upon telephone pad portion  2204 . Mounting platform  2202  and telephone pad portion  2204  are generally oriented perpendicularly with respect to one another as depicted in the embodiment of telephone mount pad  2200  in  FIG. 22 . 
       FIG. 23  is a top front perspective view of a phone mount on extension arm  2300  which is comprised of the telephone mount pad of  FIG. 22  mounted upon on an extension arm for horizontal mounting purposes of  FIG. 17  which is mounted upon a hollow extension arm  130  of  FIG. 5 . 
       FIG. 24  is a bottom rearward perspective view that depicts a personal computer and/or power brick attachment bracket  2400 . Personal computer and/or power brick attachment bracket  2400  includes mounting bracket  2402  and platform bracket  2404 . Mounting bracket  2402  includes mounting lip  2406  which included apertures  2408  and  2410 . Apertures  2408 , and  2410  are useful for mounting a clamp assembly (see  FIGS. 3 and 4 ) or mounting to hollow extension arm  130  (see  FIGS. 1 and 5 ) or directly to vertically elongate hollow pole  102  (see  FIG. 1 ) via screws, nuts and bolts or other fasteners well known in the art. Mounting bracket  2402  also includes connector platform  2412  which contains mounting aperture groupings  2414  and  2416 . Mounting lip  2406  and connector platform  2412  are generally connected to one another perpendicularly along a side of mounting lip  2406 . Mounting aperture groupings  2414  and  2416  comprise various numbers of apertures useful for mounting platform bracket  2404  to mounting bracket  2402  via screws, nuts and bolts or other fasteners well known in the art. In the embodiment of personal computer and/or power brick attachment bracket  2400  depicted in  FIG. 24  mounting aperture groupings  2414  and  2416  are depicted as elongate apertures oriented in parallel tracks relative to one another and are useful for adjusting the overall width or length of personal computer and/or power brick attachment bracket  2400  by fixing the position of mounting bracket  2402  and platform bracket  2404  through screws, nuts and bolts or other fasteners well known in the art at various positions along aperture groupings  2414  and  2416 . Platform bracket  2404  includes connector platform  2418  and containment lip  2420 . Connector platform  2418  and containment lip  2420  are oriented towards one another perpendicularly. Connector platform  2418  is generally planar and C-shaped and has an opening  2422  which is useful for routing cables. Connector platform  2418  also includes aperture groupings  2424  and  2426  which are useful for mounting a personal computer and/or power brick and/or for connecting to mounting bracket  2402  via screws, nuts and bolts or other fasteners well known in the art. Containment lip  2420  is useful for maintaining the position of a personal computer and/or power brick positioned upon connector platform  2418  and/or the substantially planar surface created by the fixing of connector platform  2418  to connector platform  2412  via screws  2428  and  2430  or by nuts and bolts or other fasteners well known in the art. 
       FIG. 25  is a top front perspective view that depicts a custom mounting foot  2500  that may be used to support the vertically elongate pole  103  (see  FIG. 1 ). Custom mounting foot  2500  is generally configured and numbered according to  118 ,  120 ,  124  and  126  of  FIG. 1  as well as the numbering of  FIG. 2  and is useful for mounting vertically elongate hollow pole  102  to a floor, ceiling, countertop or other surface such as depicted in  102 ,  118  and  122  of  FIG. 1 . Custom mounting foot  2500  is generally depicted as an L-shaped bracket with two mounting surfaces, a first mounting surface  2502  and a second mounting surface  2504 . The shapes of custom mounting foot  2500  may be configured to have varying configurations of the shapes of first mounting surface  2502  and a second mounting surface  2504  but are generally planar and generally rectangular. First mounting surface  2502  and a second mounting surface  2504  are generally perpendicularly oriented to one another. In the embodiment of custom mounting foot  2500  depicted in  FIG. 25 , first mounting surface  2502  is connected to second mounting surface  2504  through an extended connector joint  2506  and also contains design flares  2508  and  2510 . First mounting surface  2502  contains apertures  2512  and  2514  which are useful for mounting directly to vertically elongate hollow pole  102  (see  FIG. 1 ), via screws, nuts and bolts or other fasteners well known in the art. Second mounting surface  2504  contains apertures  2516  and  2518  which are useful for mounting to a floor, ceiling, countertop or other surface via screws, nuts and bolts or other fasteners well known in the art. 
       FIG. 26  is a top front perspective view that depicts a standard mounting foot  2600  that may be used to support the vertically elongate pole  103  (see  FIG. 1 ). Standard mounting foot  2600  is generally configured and numbered according to  118 ,  120 ,  124  and  126  of  FIG. 1  as well as the numbering of  FIG. 2  and is useful for mounting vertically elongate hollow pole  102  to a floor, ceiling, countertop or other surface such as depicted in  102 ,  118  and  122  of  FIG. 1 . Standard mounting foot  2600  is generally depicted as an L-shaped bracket with two mounting surfaces, a first mounting surface  2602  and a second mounting surface  2604 . The shapes of first mounting surface  2602  and second mounting surface  2604  are generally planar and rectangular. First mounting surface  2602  and a second mounting surface  2604  are generally perpendicularly oriented to one another. First mounting surface  2602  contains apertures  2606  and  2608  which are useful for mounting directly to vertically elongate hollow pole  102  (see  FIG. 1 ) via screws, nuts and bolts or other fasteners well known in the art. Second mounting surface  2604  contains apertures  2610  and  2612  which are useful for mounting to a floor, ceiling, countertop or other surface via screws, nuts and bolts or other fasteners well known in the art. 
       FIG. 27  is a top front perspective view that depicts a mounting foot  2700 . Mounting foot  2700  is useful for mounting extension arm  130  as depicted in  FIG. 1  and  FIG. 5  to a floor, ceiling, countertop or other surface. Mounting foot  2700  is generally depicted as an elongate L-shaped bracket with two mounting surfaces, a first mounting surface  2702  and a second mounting surface  2704 . The shapes of first mounting surface  2702  and second mounting surface  2704  are generally planar and square or rectangular shaped. First mounting surface  2702  and a second mounting surface  2704  are generally perpendicularly oriented to one another. First mounting surface  2702  contains apertures  2706  and  2708  which are useful for mounting to a floor, ceiling, countertop or other surface via screws, nuts and bolts or other fasteners well known in the art. Second mounting surface  2704  contains apertures  2710 ,  2712 ,  2714  and  2716  which are useful for mounting to extension arm  130  as depicted in  FIG. 1  and  FIG. 5  through holes  500 ,  502  that may receive bolts with flat nuts, such as bolt  304  and flat nut  308  shown in  FIG. 4  or via screws, nuts and bolts or other fasteners well known in the art. 
       FIG. 28  is a top front perspective view that shows a keyboard tray  2800 . Keyboard tray  2800  includes a bottom platform  2802 , a containment lip  2804 , mounting tabs  2806  and  2808  (not pictured), an access port  2810 , keyboard fixing aperture groupings  2812  and  2814 . Bottom platform  2802  is generally rectangular shaped and planar such that a keyboard may be supported upon it. Bottom platform  2802  contains access port  2810  which is generally rectangular shaped and useful for routing cables. Bottom platform  2802  is connected to containment lip  2804  along the length of bottom platform  2802  and containment lip  2804 . Bottom platform  2802  and containment lip  2804  are substantially perpendicularly oriented with respect to one another. Containment lip  2804  is useful for maintaining the position of a keyboard placed upon bottom platform  2802 . Mounting tabs  2806  and  2808  are attached to bottom platform at opposite openings in access port  2010 . Mounting tab  2806  contains apertures  2816  and  2818 . Mounting tab  2808  contains apertures  2820  and  2822  (not pictured). Mounting apertures  2816 ,  2818 ,  2820  and  2822  are useful for mounting to extension arm  1700  as depicted in  FIG. 17  but are also useful for connecting to various mounts and other extension arms described herein via screws, nuts and bolts or other fasteners well known in the art. Bottom platform  2802  also contains mounting tab groupings  2812  and  2814 . Mounting tab groupings  2812  and  2814  are useful for maintaining the position of a keyboard that is lying upon bottom platform  2802  through receiving tabs projecting from a keyboard through their apertures but may also fix the position of a keyboard to bottom platform  2802  through other fixing means well known in the art. 
       FIG. 29  is a bottom rear perspective view that depicts a swivel mount keyboard tray  2900  comprising the keyboard tray of  FIG. 28  attached a tilt and swivel mechanism having generally the same function as those depicted in  FIGS. 16 and 20  that is attached to a mounting bracket similar to that depicted in  FIG. 14 . 
       FIG. 30  is a front top perspective view that depicts an extension arm mount keyboard tray  3000  comprising the keyboard tray of  FIG. 28  attached to the extension arm of  FIG. 17  which may be attached variously to hollow extension arm  130  of  FIG. 5  and  FIG. 1  or to the clamp assemblies of  FIGS. 3 and 4 , for example. 
     The foregoing embodiments teach by way of example and not by limitation. Those skilled in the art will appreciate that insubstantial changes may be made to what is shown and described without departing from the scope and spirit of the invention. Accordingly, the inventors hereby state their intention to rely upon the Doctrine of Equivalents, if needed, in protecting their rights in the invention.