the present invention comprises a feeder preferably having one or more dishes or feed receptacles which are connected to a push / pull or pivoting rod which extends outside the cage and is maneuverable in a variety of planes ( in / out —- xy - plane along the x axis , up / down - zx or zy - plane along the z axis ) or axially in the xy - plane around a pivot point at the edge of the cage such that the dish can be easily placed at the center of the cage for feeding and moved close to the door of the cage for filling and cleaning . in addition , the positioning mechanism may also comprise a retractable / foldable arm , an arm pivoted off another location inside the cage other than the cage wall , or a combination of rods or arms that allow for positional adjustment in multiple planes . in the case of the feeder being suspended from the ceiling of the cage , the attachment mechanism may be flexible such as a cord . the feeder of the present invention is attached to the exterior of the cage through a rod or series of rods which can be maneuvered to allow access by the animal / bird at the center of the cage and by the caretaker through a cage door . while the cages shown in the drawings and described herein are drawn as rectangular in shape , the cages could be of nearly any shape ( round , hexagonal , dome - shaped , etc .) to contain a small animal or bird as its temporary or permanent home . in addition , all of the various features illustrated and discussed below within each preferred embodiment are understood to be applicable within all of the preferred embodiments discussed herein . fig1 shows a preferred cage 10 which has a feeder mechanism installed therein . in the interest of clarifying the invention , only some of the bars of the cage are shown , while others have been removed . the feeder mechanism 20 as shown contains a receptacle 12 having two removable dishes or fixed cavities for containment of food 14 and water 16 . the receptacle 12 of the invention could contain more or less cavities depending on what may be desirably fed to the occupant of the cage . the receptacle 12 travels on two rails 22 , 24 which are slidably engaged with hollow tubes 26 , 28 on the bottom of the receptacle 12 . the rails 22 , 24 are attached at opposite sides of the cage to act as a height locating device for the feeder receptacle between the door 40 of the cage and the cage floor . the rails 22 , 24 may also act as a perch for the cage occupant to use while feeding . a central rod 30 with a handle 32 is attached to the receptacle 12 and can be used to push or pull the receptacle 12 to a position near the center of the cage for feeding or to the door 40 at the edge of the cage for servicing ( filling , emptying or cleaning the dishes or cavities in the receptacle 12 ). the receptacle 12 may contain similarly shaped dishes which fit into the cavities of the receptacle 12 which may then be interchanged with other dishes for ease of cleaning , filling , etc . fig2 show the cage 10 a and feeder mechanism 20 a in cross - sectional side view , again with most of the cage bars removed for clarity of presentation . here , the rod 30 a is extended nearly its full length to position the feeder mechanism 20 a near the center of the cage 10 a . as the arrow a indicates , by pulling on the handle 32 a , the feeder mechanism 20 a can be maneuvered to close proximity of the door 40 a of the cage 10 a . this eliminates the need to reach into the center of the cage to access the receptacle 12 a . again , with the feeder near the center of the cage 10 a , spillage from the receptacle 12 a will be contained within the cage . turning to fig3 - 5 , a second preferred embodiment of the present invention is shown , where in fig3 , the feeder mechanism 20 c can be easily maneuvered near the center of the cage or to the access door 40 b as shown by the arrow b . in this embodiment , a pivoting ( see fig3 for a top view with bars removed for clarity ) mechanism 50 is located at the corner of the cage 10 d which can pivot the receptacle 12 c from near the center of the cage to the access door 40 b . fig4 is a perspective view of the second embodiment of the present invention illustrating additional details of the pivot mechanism sob . the pivot mechanism comprises a hollow tube 56 which slips over the corner bar 52 of the cage 10 e and which sits on a fixed collar 54 which is firmly attached to the corner bar 52 , locating the height of the pivot mechanism 50 b and , thereby , the feed receptacle 12 d . as shown in fig8 the fixed collar 54 b and tube 56 b may each include intermeshing teeth 59 which may act as a detent for positioning the feeder mechanism 20 d of fig4 near the center of the cage 10 e . thus , the feeder mechanism can be lifted slightly and rotated to a specific angle and on different planes inside the cage and the intermeshing teeth will guarantee it remains in that position . as shown in fig4 and 8 a thumb screw 58 , 58 a and 58 b or wing nut may be engaged with a threaded hole in the tube 56 , 56 a to prevent unwanted horizontal movement of the feeder mechanism 20 d . it should be noted that as shown in fig4 it may be advantageous to angle the sides of the feeder receptacle 12 c and 12 d to match the angle that the receptacle makes when it engages the wall of the cage . receptacle 12 c and 12 d may have a removable dish inside . fig5 is a cross - sectional side view of fig4 showing how the receptacle 12 e is supported by rod 60 and rod 62 which is angled down to a lower point on tube 56 a to provide vertical stability for receptacle 12 e . it should be noted that rods 60 and 62 may be firmly attached to the tube 56 a . furthermore the rod attached to thumbscrews 58 a can be releasably engaged to hollow tube 56 a , as illustrated in fig5 . furthermore , this concept of fixed rods 60 and 62 and releasable thumbscrew 58 a apply to all other preferred embodiments herein . a third preferred embodiment of the present invention is shown in fig6 and 7 illustrating a cage design where the access door 40 c is located in the top of the cage 10 f . again , some of the cage bars have been removed in the figs . to provide clarity to the understanding of the present invention . in this preferred embodiment , gravity is used to assist in lowering the feed receptacle 12 f to its desired height in the cage . the mechanism for lowering the receptacle 12 f comprises a handle or ring 32 b , a rod 30 b which is slidably engaged with a hollow tube 56 c , which is attached to a central flat bar 76 spanning a portion of the top of the cage 10 . in fig6 the feeder receptacle 12 f is shown as being in two portions with the rod 30 b centered between them for balance . the receptacle may comprise one , two or more removable dishes or fixed cavities surrounding the rod which may then be rotated under the cage door 40 c for access . fig7 is a cross - sectional side view of fig6 showing the rod 30 c withdrawn from the cage such that the feeder receptacle 12 g is at the top of the cage and in close proximity to the cage door 40 d . fig7 shows a spring clip 78 a mounted to the rod 30 c which secures the feeder receptacle 12 g in the up position while it is being accessed . the spring clip 78 a remains in an expanded position when the rod is extended into the cage ( reference numeral 78 in fig6 ) and is compressed when the rod 30 c is drawn through the tube 74 a until the spring clip 78 a clears the tube 74 a and expands back out to hold the receptacle 12 g in the up position ( see fig7 ). compressing the spring clip 78 a , allows the clip and the rod 30 c to slide down through the tube 56 d and bring the receptacle 12 g into a lowered position for access by the occupant of the cage ( see fig6 ). in addition , thumbscrew 58 c conveniently holds tube 56 d in the up position and / or at any position in the vertical z - plane . fig9 illustrates yet another preferred embodiment of the present invention . in this embodiment , the feeder mechanism generally identified at 80 is shown in the form of a house configuration , wherein the feeder receptacles 82 for food and / or water are contained within the feeder , and are removable for ease of replenishing and cleaning . at or near the apex 84 of the house configuration an opening is provided to allow for connection to the rail 86 . as can be seen , rail 86 is preferably of square or rectangular shape , or other equivalent geometric shape to restrict rotation of the feeder 80 . extension structure 88 is shown extending between said feeder 80 and the wall of the cage 90 . preferably , in fig1 , a side cross - sectional view of fig9 , the extension structure 88 extends beyond the cage and includes a handle 92 to facilitate manual engagement by the user so that the feeder mechanism can be selectively positioned at the door 94 , which is illustrated in fig1 is open position . fig1 illustrates yet another preferred embodiment of a feeder mechanism 96 . in this configuration the feeder mechanism is attached at its bottom location 98 via extension structure 100 , which , as shown , preferably comprises two elongated bar sections forming a general right angle configuration . however , in the broad context of the present invention , the extension structure may simply comprise a single bar section attached to the side of feeder mechanism 96 . in addition , it can be appreciated that extension structure 100 extends from the roof 102 the cage so that it can be manually engaged and positioned at a selected location in the interior space of the cage and at a selected location at the door opening 104 . the present invention is not limited to the preferred embodiments described herein and could include any of a variety of mechanisms such as folding arm , extendable rod , pivoting , rotating or hanging mechanisms located on or near the perimeter of the cage that allow a feeder receptacle to be maneuvered from near the center of the cage to the perimeter of the cage in proximity to an access door . in addition , the feeder mechanism described herein may be combined with a mechanical engagement means where upon opening of the cage door , the feeder mechanism is triggered to move the feeder receptacle automatically towards the cage wall and upon closing the cage door , the receptacle is positioned near the cage center . the description and drawings illustratively set forth the presently preferred invention embodiment . we intend the description and drawings to describe this embodiment and not to limit the scope of the invention . obviously , it is possible to modify these embodiments while remaining within the scope of the following claims . therefore , within the scope of the claims , one may practice the invention otherwise than as the description and drawings specifically show and describe .
a feeder for a cage , designed to reduce the scattering of food and to provide a cleaner and healthier caged environment , wherein the cage has a wall and an interior space for housing an animal such as a bird , including a cage door . the feeder comprises a feeder mechanism which includes a feeder receptacle attached to an extension structure , wherein the extension structure extends between the receptacle and the wall of said cage . the extension structure is manually engageable and adjustable for positioning the feeder receptacle at a selected location in the interior space of the cage and at a selected location at a cage door for access to the feeder receptacle .