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0m 1', 1946.
Filed Dec. 29, 1944
grlv vi
Patented Oct. 1, 1946
i t Frederick A. Ge'ssler, Des nets, medians;
» .bylmesne (assignmentato' GlobeMilken-Inc";
I’ Des Moines, ‘Iowa, a corporationof Illinois
j jgApplication neeei'nberza. mitis'enei No. 571L436‘ I
/ "
4 Claims.
" i This invention»1relates'3
generally‘ to- teat cups '
stantiallyfequal to the inside diameter of the
for mechanical milking machines and‘ in iparticu
‘tubular-casing _5‘ for a ‘purpose which will appear.
>1er to "a' tea't- cup of ‘the typeeincluding a casing 5or
a housing- with an in?ation'supportedin a ,‘spaced _
‘relation within the 'casing'.1;~~
' In the assembly of the teat cup, the milk tube.
proved ‘teat cup for mechanical milking machines.
It and pulsatior'rv tube 11' are inserted into the
upper end of the tubular casing 5 and then pulled
outwardly from the lower end of the casing to
‘ 'A'iurther object'of this'invention' is .to provide
‘ position the in?ation 8 in a spaced relation within
'» 'An‘object-"of'this invention is toprovide an im
a two piece teat cup for a pulsation type milking
the casing to form the air chamber l5.
machine comprised of'a casing and an associated '
‘pulling action‘ initially seats the peripheral bead
‘rubber liner integrally formed with a milk tube
land. a pulsation tube,'in" which thecas'ingand
8,‘ at? the vupper end of the casing 5; within the
‘ a liner are-of a simple and inexpensive~design,‘and
tinued the-in?ation‘ 8 is extended or stretched
undercut recess [2. As the pulling action is con
- relatively constructed to be quickly and easily as- v p‘
semblediand takenapart.~~~
~ A
7 Further objects, features and advantages of this
invention will become apparent from the follow
‘ 15
downwardly until; the peripheral edge of the flange
M. is 'in ‘abutting engagement, with the under side
of a ridge 1. The in?ation 8 is thus ?uid sealed
ing description when taken in connection with the
at its upper end with the casing 5 by the engage
ment of the bead 6 within the recess l2 and at
accompanying drawing in which:
its lower end by the engagement of the ?ange
Fig. 1 is an elevational view of‘ the teatcup of 20 M with a ridge 1.
this invention showing the casing and substan
When the liner is new a ?uid seal of the lower
tially all of the liner in section; "
‘end of the in?ation 8 is accomplished with the
Fig. 2 is an elevational view of the liner; and
upper one of the ridges 1. In use some of the
Fig. 3 is a sectional view taken along the line
stretch in the in?ation 8 is lost and at such time
3—-3 in Fig. 1.
25 it is necessary to stretch the in?ation 8 to engage
With reference to the drawing the teat cup of
the ?ange M with the lower one of the‘ridges 1.
this invention is shown in Figs. 1 and 2 as com
After the stretch in the in?ation 8 is lost so that a
prising a metal tubular casing or teat cup shell 5,
?uid seal is not obtainable at'its lower endlwith
of a cylindrical shape,'integrally formed with an
any of the ridges 1, the original liner is replaced
outside peripheral bead 6 at its upper end, and a 30 with a new one. As is clearly illustrated in Figs.
series of inside axially spaced pressed-in annular
1 and 2 that portion of the body member l3,
ridges 1 adjacent its lower end. It is thus seen
below the ?ange I4, is of a slightly reduced diam
that the inside diameter of the tubular casing 5
eter relative to the ?ange l4, and acts to support
is the same throughout its length except for the
and reinforce the ?ange l 4, in an operative posi
inwardly projected ridges ‘I at its lower end.
35 tion with a ridge ‘I, against undesirable distortion
The liner for the teat cup is composed of a
and axial ?exing movement.
?exible material such as rubber or the like and is
In the operation of the teat cup the milk tube
integrally constructed with an in?ation 8 having
I6 is connected with a closed milk receptacle (not
an enlarged head portion 9 at its upper end and a'
shown), which is generally under a partial vac
base member, indicated generally as l I, adjacent ,40 uum. The pulsation tube I1 is connected with a
its lower end. The head portion 9 is formed with
pulsator (not shown) generally included as a
an undercut annular recess l2 adapted to receive
part of the milking machine. A cow's teat is
the bead 8 in ?uid tight engagement.
insertable within the in?ation 8 at its upper end.
The base ll includes an annular body member
The air chamber l5,'between the in?ation 8 and
l3 having an annularrprojection or ?ange Mat
the casing 5, is then alternately placed under at
its upper end, and merging at its lower end into a
mospheric and sub-atmospheric pressure by the
milk tube l6 and a pulsation tube H, which arev
action of the pulsator, whereby the in?ation 8 is
connected together in a side by side relation. The
in turn alternately squeezed and then released
pulsation tube l1 extends through and is open to
from a cow’s teat, with the pressures being applied '
the top side of the body member‘ l3, which top 50 to the chamber l5 through the pulsation tube 11,
and the milk withdrawn being carried from the
side de?nes the bottom of an air chamber I5,
while the milk tube extends through the body
member l3 for ?uid communication with the
lower end of the in?ation 8,. As best appears in
Figs. 1 and 3 the ?ange I4 is of a diameter sub
' in?ation 8 through the milk tube l6.
Although the invention has been described with
respect to a preferred embodiment thereof it is to
be understood that it is not to be so limited since
changes and modi?cations can be made therein
which are within the full intended scope of this
invention as de?ned by the appended claims.
I claim:
1. In a teat cup, the combination with a tubu
lar casing of cylindrical shape having a peripheral
bead at on end, and axially spaced, inwardly
extendedv ‘annular ridges adjacent its opposite
end, of anintegrally formed ?exible liner having
jacent thereto and the reinforcing structure hav
ing therein a passageway from ?uid other than
3. In a teat cup of the type described compris
ing a tubular outer casing and an inner ?exible
liner wherein the liner is maintained in operative
position within the casing by friction means, said ‘
friction- means comprising a series ‘of parallel
beads ion'said casing and an annular projection
an enlarged head portion with an annular under 10 on said liner comprising two portions of different
cut recess adapted to receive said peripheral head; 7' thicknesses transversely'of the liner, with the
and including a base member comprised of a‘milk _ 7
tube, a pulsation tube and an annular‘projecnon;
said projection comprising ‘two; portions of »dif-'
‘ferent thicknesses transversely ofJtheQlinen-wi'th
the portion of greater thickness’having ai'diam- '
eter substantially equal tothe inner diameter of
said casing so that the peripheral edges thereof is
adapted to abut against one of said éa-nnula’rl
ridges, and the portion of lesser thickness consti
tuting a reinforcing structure to prevent/unde
sirable‘distortion of the projection whén ‘inop
erative position with one of said ridges, with said
two tubes being terminated. substantially. at. said
projection andiextended therethrough,
. I
. l
In a teat cup’ of the type described compris
ing a tubular outer casing and an inner ?exible
liner wherein the liner is maintained‘ in opera
tive position relative to the casing by friction
means,‘ saidv friction 1 means comprising parallel
beads on the casing, and :at least one bead on the
liner, said one bead having adjacent thereto rein
forcing structure to, support the'bead, Whenin
operative position within the ;c',,\fr_om being
materiallvdistorted, the bead having closelyad
portion ofrgreater thickness having its periph
" eral edge‘ adapted to frictionally engage one of
said. beads, and the portion of lesser thickness
constituting a1reinforcing structure to prevent
undesirable distortion of the projection when in
said irictionally {engaged position, said projection
having therein a passageway for ?uid other than
. milk.
4. In a teat cup of the type described compris
ing a tubularwoutervcasing of a straight cylin
-dri<>a1:;shape having the. opdm‘ingsa the ‘opposite
ends thereof ‘of substantially» the ,samelsize, and
an inner ?exible liner-‘which, ismaintained in
operative position relative to (the casing by fric
tion means, ‘said friction means comprising a
series of parallel beads on; said casing adjacent
one end thereof, an annular projection on the
liner having a; diameter substant-iallsr equal to
the inner diameter of said, casing, and a periph
eral portion on said projectionadapted to fric
tionally engage a side- surfaeee-of one of said beads
to hold, the liner in operative, position within the
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