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 This application is a continuation-in-part from co-pending nonprovisional U.S. patent application Ser. No. 10/783,808 filed Feb. 21, 2004, the specification of which is incorporated by reference into this document.
 The apparatus and method disclosed in this document pertain generally to mounting apparatus. More particularly, the new and useful systems disclosed and claimed in this document pertain to an apparatus for variably positioning one or more devices on a pole. The mounting apparatus is particularly, but not exclusively, useful for variably positioning a solar panel on a pole.
 Devices such as solar panels, transmitters, receivers, telescopes, radar units, satellite dishes, and a host of other devices present unique problems associated with mounting such devices on a pole. When mounted on one end of a vertical pole, the apparatus must be capable of resisting wind, rain, significant variations in ambient temperatures, and a host of other challenges presented by the elements. Limitations among mounting apparatus currently available for installing devices on one end of a pole include complexity of design and installation. Current limitations also include non-standard dimensions of hardware used to assemble and secure devices on mounting brackets attached to poles. In addition, there exists an evident inability to integrate the cap of the system claimed in this document with the top of a pole. Current apparatus also fail to allow installation of a device in a 360-degree radius or orientation around a longitudinal axis through the center of a pole on which the device or devices are mounted, and allow no adjustment of the position of a device on or along an axis or plane transverse to the longitudinal axis through a pole, i.e., in directions “up” or “down” from a plane perpendicular to the longitudinal axis through the center of the pole. Exemplary solutions for mounting solar panels on surfaces and objects are shown in U.S. patent application Ser. No. 09/910,655, filed Jul. 20, 2001, and in U.S. Continuation-in-Part patent application Ser. No. 10/116,384, filed Apr. 4, 2002, and in Continuation-in-Part patent application Ser. No. 10/783,808, filed Feb. 21, 2004, naming as the sole inventor one of the inventors named in this document, the specifications of which are incorporated into this document by reference. However, a need exists in the industry for a new, useful and improved mounting apparatus directed to the challenging problems of mounting a device on an exposed end of a pole.
 In one embodiment of the mounting apparatus disclosed and claimed in this document, a sleeve is provided. The sleeve may be monolithically formed and shaped, or may be assembled from interlockable channels. The sleeve may be formed with one or more slots. The sleeve is removably engageable with one end of a pole on which it is desired to mount one or more devices (“exposed end” of a pole). The ends of a pole are identified in this document as the exposed end, which is the end on which a device is to be mounted, and the “installed end,” the end that generally is secured to the ground or to a structure to hold the pole in position. Connectors are included that adapt both adjustably and removably to the slots. In addition, at least one bar is included. The bar is formed with a plurality of apertures strategically located to permit variably positioning the bar on the connectors and, accordingly, in relationship to the pole. The bar is formed with at least one aperture. A cap also is provided. The cap is connected to one end of the sleeve. At least one side of the cap is engageable with the exposed end of the pole. The mounting apparatus includes a variety of ways to secure the mounting apparatus to a pole.
 As indicated, in one embodiment the sleeve of the mounting apparatus is formed from at least two interlockable channels that are substantially identical in shape, configuration, and dimensions. As used in this document, the term “interlockable channels” means that the two substantially identical channels include structural elements permitting a combination of any two channels to be assembled into a sleeve. In one non-exclusive embodiment, each channel includes opposing edges. One edge is formed as a duct, and the opposing edge is beaded to slide and mesh into a duct to form a sleeve. Because the channels are substantially identical in shape, configuration, and dimensions, a first channel may be inverted in orientation in relation to a second channel, and the two channels interlocked by sliding the opposing beaded edges into the opposing ducts.
 In yet another embodiment, a system for mounting a variety of devices on the exposed end of a pole includes a sleeve that also is removably engageable with the exposed end of a pole. The sleeve includes a bracket. The bracket is monolithically formed in the sleeve. Either a slot or a plurality of slots is formed adjacent to one border of the bracket. One or more bores is formed adjacent the opposing border of the bracket. In another embodiment, a groove may be scored or formed on a surface of the sleeve or bracket for locating one or more points at which to form the bores. A bar is provided that may be connected to the bracket is a variety of positions. A cap may be attached to one end of the sleeve.
 In operation of any embodiment, any of a variety of devices may be attached to the system, including but not limited to a solar panel, a transmitter, a receiver, and a satellite dish, among others.
 It will become apparent to one skilled in the art that the claimed subject matter as a whole, including the structure of the apparatus, and the cooperation of the elements of the apparatus, combine to result in a number of unexpected advantages and utilities. The structure and co-operation of structure of the mounting apparatus will become apparent to those skilled in the art when read in conjunction with the following description, drawing figures, and appended claims. The foregoing has outlined broadly the more important features of the invention to better understand the detailed description that follows, and to better understand the contributions to the art. The mounting apparatus is not limited in application to the details of construction, and to the arrangements of the components, provided in the following description or drawing figures, but is capable of other embodiments, and of being practiced and carried out in various ways. The phraseology and terminology employed in this disclosure are for purpose of description, and therefore should not be regarded as limiting. As those skilled in the art will appreciate, the conception on which this disclosure is based readily may be used as a basis for designing other structures, methods, and systems. The claims, therefore, include equivalent constructions. Further, the abstract associated with this disclosure is intended neither to define the mounting apparatus, which is measured by the claims, nor intended to limit the scope of the claims. The novel features of the mounting apparatus are best understood from the accompanying drawing, considered in connection with the accompanying description of the drawing, in which similar reference characters refer to similar parts, and in which:
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