Abstract:
Apparatus for holding a jetter cup having an opening, includes a peg having a first portion, a second portion and a third portion interposed between and larger than the first portion and the second portion, wherein the third portion is larger than the opening of the jetter cup.

Description:
BACKGROUND OF THE INVENTION 
   Most commercial dairy farms use automatic milking equipment to milk cows, goats or other dairy animals. Such milking equipment typically includes a plurality of milking cups connected to a milking claw. The milking claw is connected to a milk collection receptacle via conventional flexible tubing. 
   The milking cups typically include a rubber liner received within a shell. Milking cup liners have various configurations, but commonly include an enlarged mouthpiece extending around the top of the shell, a liner barrel within the shell, and a short milk tube that extends from the bottom of the shell to the milking claw. 
   Automatic milking equipment typically cycles the pressure between the liner and the shell between negative and atmospheric pressure. The alternating pressure cycles cause the walls of the liner to massage and milk the teats of the udder. Continuous vacuum applied to the interior of the rubber liner moves the milk from the teats into the liner, then to the claw and to the milk collection receptacle. 
   Clean liners are essential for sanitation and to prevent infection of the animals of the herd. Commercial dairy farms typically employ a great number of milking cups and liners, thus must rely on automatic cleaning equipment for sanitizing. Automatic cleaning equipment typically includes a plurality of jetter cups for receiving and cleansing the milking cups. A jetter cup is a rubber cup into which the enlarged end portion of a milking cup is received. This avoids deformation of the mouth piece of the liner and allows circulation of cleaning solution around the outside of the liner for complete cleaning. 
   During milking, the jetter cups must be hung or stored out of the way for their protection and cleanliness, and to avoid cluttering the space. However, typical jetter cup storage units are difficult to use and easily damaged. 
   Some storage apparatuses employ wireform support members. To adequately insure cleanliness, the fit between an enveloping hood and the wires must be quite tight, which causes binding when the jetter-cups are slid into place. This often leads to improper storing of the jetter-cups, thus defeating the purpose of the protective hood. See, e.g., U.S. Pat. No. 2,956,571. Other storage apparatuses provide holders having annular walls that define inverted truncated cones, but require negative pressure to retain the jetter cups thereon. See, e.g., U.S. Pat. No. 4,516,592. Still other storage apparatuses include unprotected racks with grippers. See, e.g., U.S. Pat. No. 6,431,116, issued Aug. 13, 2002, to M. Nilsson for Apparatus for Performing Animal Related Operations. 
   What is needed, and not taught or suggested in the art, is a jetter cup holder that retains a jetter cup without reliance on vacuum and prevents contamination. 
   SUMMARY OF THE INVENTION 
   The invention overcomes the disadvantages noted above by providing a jetter cup holder that retains a jetter cup without reliance on vacuum and prevents contamination. To that end, an embodiment configured according to principles of the invention for an apparatus includes a peg having a first portion, a second portion and a third portion interposed between and larger than the first portion and the second portion, wherein the third portion is larger than the opening of the jetter cup. 
   The invention provides improved elements and arrangements thereof, for the purposes described, which are inexpensive, dependable and effective in accomplishing intended purposes of the invention. 
   Other features and advantages of the invention will become apparent from the following description of the preferred embodiments, which refers to the accompanying drawings. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The invention is described in detail below with reference to the following figures, throughout which similar reference characters denote corresponding features consistently, wherein: 
       FIG. 1  is an environmental perspective view of an embodiment of a jetter cup holder configured according to principles of the invention, jetter cups shown connected thereto being for illustrative purposes only and forming no portion of the invention; 
       FIG. 2  is a front elevational of the embodiment of  FIG. 1 ; 
       FIGS. 3 and 4  respectively are environmental perspective and front elevational views of another embodiment of a jetter cup holder configured according to principles of the invention; and 
       FIGS. 5 and 6  respectively are environmental perspective and front elevational views of a further embodiment of a jetter cup holder configured according to principles of the invention. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   Referring to  FIGS. 1 and 2 , an embodiment configured according to principles of the invention is a jetter cup holder  100  that retains a jetter cup C without reliance on vacuum and prevents contamination. Jetter cup holder  100  includes a plurality of pegs  105 , each configured to received a jetter cup C, mounted on a plate  110 . 
   Each jetter cup C generally describes an open-ended volume V configured to receive the enlarged end portion of a milking cup (not shown) and having an inwardly disposed lip L. Lip L defines an opening O having a diameter D sized and configured to stretch for receiving the milking cup (not shown), then form an interference fit with the milking cup (not shown) once received. Once the milking cup (not shown) is cleaned, the milking cup (not shown) is removed from jetter cup C and jetter cup C is stored on jetter cup holder  100 , as shown in  FIG. 1 . 
   Accordingly, referring to  FIG. 2 , peg  105  of jetter cup holder  100  is configured to receive and maintain jetter cup C. Peg  105  may assume any shape suited to the purposes of the invention, but preferably is spherical. A spherical shape is preferred because such allows for removing a jetter cup C generally from any direction without creating elevated strains, or strains in unanticipated directions, that may cause material failures in peg  105 , plate  110  or a bracket (not shown) holding same. The spherical shape also presents an easy surface for cleaning. 
   Regardless of shape, peg  105  has a lower portion  115  sized so as not to interfere with opening O, that is, the dimension  117  does not exceed diameter D. Peg  105  has a central portion  120  sized so as to interfere with opening O, that is, the dimension  122  does not exceed diameter D. Thus, jetter cup C easily may be positioned on peg  105 , then, with sufficient, but not inordinate, force, urged past central portion  120 . The relatively oversized relationship of central portion  120  to opening O of jetter cup C provides for retaining jetter cup C on peg  105 . 
   Preferably, peg  105  also has an upper portion  125  sized so as not to interfere with opening O, that is, the dimension  127  does not exceed diameter D. This facilitates securing a jetter cup C to a peg  105  and ensures retention thereon. Once sufficiently beyond central portion  120 , stretched elastic lip L has a tendency to constrict and urge jetter cup C toward a portion of peg having a relatively smaller dimension, such as provided by upper portion  125 . Thus, peg  105  does not require a vacuum, but relies on an “over-center” and/or interference fit phenomena to retain a jetter cup C. 
   Preferably, peg  105  is configured so that, when jetter cup C is mounted thereon, peg  105  and jetter cup C define a continuous, sealed surface, which prevents ordinary contamination from entering jetter cup C when stored on jetter cup holder  100 . 
   In practice, a plurality of pegs  105  are mounted on plate  110  with threaded fasteners, such as stainless steel screws. Pegs  105  and plate  110  may be connected in other fashions appropriate to the purposes of the invention, or molded integrally. 
   Plate  110  should be mounted to an external structure, such as a milking barn post, in a manner that promotes runoff running along plate  110 , rather than along pegs  105 , so as to discourage contaminated fluid from seeping into jetter cups C when stored and cleaned. 
   Referring to  FIGS. 3 and 4 , another embodiment configured according to principles of the invention is a jetter cup holder  200  that includes a plurality of pegs  205 , each configured to receive a jetter cup (not shown), mounted on a plate  210 . As with peg  105 , peg  205  has a similar lower portion  215 , central portion  220  and upper portion  225 . 
   Jetter cup holder  200  includes a bead  230 , which forms a natural collection point for fluid to drip off of plate  210 , rather than running back to peg  205  and seeping into jetter cups C when stored and cleaned. Bead  230  may have rounded corners and/or may extend farther from plate  210  to better protect jetter cups (not shown) mounted on pegs  205  from contaminating fluid. 
   Referring to  FIGS. 5 and 6 , a further embodiment configured according to principles of the invention is a jetter cup holder  400  that includes a plurality of pegs  405 , each configured to receive a jetter cup (not shown), mounted on a plate  410 . As with peg  105 , peg  405  has a similar lower portion  415 , central portion  420  and upper portion  425 . 
   Jetter cup holder  400  has a like number of recesses  430  as pegs  405 . Preferably, each recess  430  is cylindrically or otherwise shaped to receive and protect cups (not shown) mounted on pegs  405  from contaminating fluid when stored and cleaned. 
   The invention is not limited to the particular embodiments described and depicted herein, rather only to the following claims.