US2652847A

US2652847A - Pulsatory device for milking machines

Info

Publication number: US2652847A
Application number: US209958A
Authority: US
Inventors: Segebarth Herman Paul
Original assignee: Ecremeuses Persoons SA Des
Current assignee: ECREMEUSES PERSOONS SA; Ecremeuses Persoons SA Des
Priority date: 1950-02-10
Filing date: 1951-02-08
Publication date: 1953-09-22
Anticipated expiration: 1970-09-22

Description

p 1953 H. P. SEGEBARTH V 7 2,652,847

PULSATORY DEVICE FOR MIIQKING MACHINES Filed Feb. 8. 1951 VIIIIIIIIIIIIA..-

INVE/VTOK HERMAN mulsmsukm -By ZZM r/w uk,

Patented Sept. 22, 1953 BULSATORX DEVICE'FGR MILKIN G'.

MACHINES;

Herman Paul" Segebarth, Brussels; B rg" signo'r" to S-ocicte" Anonyme d'e'si' Ec're euses. Perso'on's, Thildonck-Wespeljaer; Belgium, a"

Applicati'on February 8, 195 1; S'OliflLNO- 2093958 In Belgium February 10,,1950' aelaims. (01. 1 37 40 3? The invention relates to a 'milk'er pulsatoi" of the diaphragm type and adapted to be fitted onto the cover of a milking machine jug or of a milker p i It the; main object of'the invention to produce a pulsato'r of this type, which is particularly simply constructed. and. may be operated for a long time" without any risk of misadjustment and without the. necessity of using, parts, which are liable to wear quickly".

A preferred" embodiment of the-invention will now b' described, reference being made to theaccompanying drawing, the description and the drawings being. given by way of. eXemplifica-tion merely. In the drawings:

Figs. 1 and 2 are two sectional views of the pulsator in two difierent operative positions.

The body structure I of the pulsatcr is provided with an upper recess 24 and a lower or bottom recess III, the upper recess 24 being subdivided by a diaphragm 2 into two superposed compartments, viz. an upper compartment 3 and a lower compartment 4. The diaphragm is held between a cover 5 and a plat 6. The body structure I is secured to the cover C of the jug or milker pail. A vertical tube I is suspended from the center portion of the diaphragm and the inner bore 8 of the tube communicates through bore 9 surrounding the latter with the compartment 4.

The lower end of the tube I opens into a lower recess or chamber Ill connected with a source of vacuum through a pipe 22; the compartment 4 is in permanent communication with the source of vacuum through openings 9, bore 8, chamber In and pipe 22.

The tube 1 carries two discs I I and I2 made of rubber or any other suitable elastic material, the disc II being adapted to move inside chamber Iil while the other disc I2 is vertically movable in center chamber I3 surrounding the tube and inside the body structure I; the chamber I3 is connected with the outer atmosphere through a channel I4.

As already mentioned, the tube 1 is free in its movements due to the opening I5, the diameter of which is larger than the outer diameter of the tube 1 and of the presence between the recesses I0 and chamber I3 of an annular projection I6 provided with a bore H, the diameter of which is substantially larger than the outer diameter of the tube 1.

A pipe I8 connects the center chamber I3 and bore I I surrounding the tube I with the compartment 3 located above diaphragm 2. A screw regulator valve I9 is provided in pipe I8 which 21 permits the adjustment of the operational speed off'the pulsatory arrangement.

The. b'ore I'I" communicates through. pipe 21 with the teat cups; not shown.

The device is' operated, as. follows. I

The diaphragm 2" is in. its lower positioni as illustrated in Fig. l; suction is created inside compartment 3 abovethe diapl'irag'm- 2 through thepip'e I8,..th'e' bore I'l the chamber I}! and' the' channel 22; consequenny, the tube 1 rises by reason of" the' connection" between the compart ment It and the atmosphere entering through the annular opening t5; the chamber t3 andthepipe lid; The pressureinsidetlie compartment 4 will thus be' 'lessthan the atmospheric pressure but" higher than the pressure in the compart ment 3.

When the diaphragm 2 is in its uppermost position, the resilient discs II and I2 assume the position indicated by numerals I I and I2 in Fig. 2 and an unrestricted vacuum action is created, inside the compartment 4 through the bores 9, the bore 8, the chamber It! and the channel 22. The compartment 3 maintains, at the same time, an exclusive atmospheric pressure through channel I8, the chamber H, the chamber I3 and the channel I4.

The change of vacuum and atmospheric pressure in the chambers is applied to the teat cups by the vertical movement of the discs II and I2, carried by the tube 7 and the displacement of the latter is controlled through the variation of pressure in the

compartments

3 and 4.

In the position illustrated in Fig. 1 where the diaphragm is lowered, the disc I2 rests on its lower seat consisting of the annular projection I6; the teat cups are therefore connected with the source of vacuum through the passages, 2|, I'I, I0 and 22.

In the position illustrated in Fig. 2, where the diaphragm is raised, the lower disc I I is in contact with its upper seat and atmospheric pressure prevails inside now, the tube 2| by reason of the annular space I? into which it opens the latter being connected with the pipe through the center chamber I3.

A pulsatory device executed according to the invention has the advantage of being very simple in structure; it is only operated by means of two washer-shaped closing members, or discs made of elastic or plastic material and cooperat ing with accordingly positioned rigid seats; one of these seats, namely the annular projection I6 formed on the body structure alternately serves as a seat for each of the discs I I, I2.

Furthermore, the disks of misadjustment and wear are reduced to a considerable extent because the tube is allowed complete freedom of movement throughout its stroke and due to the absence of any rigid closing member frictionally engaging a metal surface.

Since certain changes may be made in the above article and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above descri tion or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

Having thus described the invention, what I claim as new and desire to be secured by Letters Patent, is as follows:

1. A milker pulsator comprising in a body structure a top recess and a bottom recess, an inner centrally located chamber, covers for each of said recesses, a substantially horizontal bendable diaphragm extending throughoutsaid top recess and dividing the same into an upper compartment and a lower compartment, said compartments being superposed upon each other, a tube vertically suspended from the center of said bendable diaphragm and thereby adapted to be vertically displaced, two vertically superposed bores between said tubes and said body structure adapted to connect said inner chamber to said upper recess and said lower recess, the inside of said tube being in permanent communication with said lower compartment, said tube opening freely at its lower end into said bottom recess, a passage permanently connecting said lower recess with a source of a vacuum, a passage to permanently connect said inner chamber with the outer atmosphere, a passage to permanently connect said lower bore with teat cups, a passage to connect said lower recess to the upper compartment, vertically superposed spaced resilient members fastened to said tube and vertically displaceable therewith and adapted to establish by their vertical displacement alternatively a connection be tween said bottom recess and both the passages leading to said teat cups and said upper compartment while the inner chamber communicates with said lower compartment, said resilient members being upwardly displaced to interrupt the connection between said lower recess, the passages leading to said teat cups and to said upper compartment while establishing communication between said inner chamber, the passage leading to the teat cups and said upper compartment upon movement of the diaphragm due to the atmospheric pressure acting on the same as opposed to the vacuum action upon the diaphragm in the upper compartment.

2. In a milker pulsator according to claim 1, the resilient members being disc-shaped.

3. In a milker pulsator according to claim l, a valve being adjustably located in the passage connecting the lower bore and the upper compartment.

HERMAN PAUL SEGEBARTH.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,392,346 McCornack Oct.'4, 1921 2,480,239 Harstick Aug. 30, 1949