GB2079124A - Teat Cup Liners - Google Patents

Abstract

A teat cup liner has a wide mouth whereby in use it seals on the udder. The resistance to collapsing of the body of the liner is substantially uniform over one longitudinal half and over the other half the thickness and strength varies gradually, being smallest at the top and greatest at the bottom.

Description

SPECIFICATION The "Clereway Liner" This is a pull through liner designed for use with shells made from aliminium or other light, strong materials. The teat end of the "Clereway Liner" is wide enough to seal itself on the vessel of the animal being milked, and not on the teat, as in all present machines. This move does away with the weight of shells and claw arrived at as a means of preventing the liner from creeping up.

Hence the use of light shells.

Unlike all other liners the "Clereway Liner" is designed to have varying strengths and thicknesses through the body. The liner forms the inner wall of the pulsation chamber.

One half of the liner (top to bottom) is thick enough and strong enough to resist the air pressure in the pulsation chamber, the other half of the liner (top to bottom) varies in thickness and strength, being weakest at the top of the teat and stronger at the bottom, thus giving a smooth change all the way down the teat, creating the same feeling as a suckling calf.

The whole gives a very comfortable milking machine and strength of air in the pulsation chamber can be varied to suit any herd or breed of cattle.

This system is of great importance to dairy cows, particularly in the early stages of the lactation which is so important to all concerned.

No damage can be done while milking with the "Clereway Liner" as creep-up is irrelevant and the teat canal is never checked and damaged as happens in all other systems.

Briefly, the "Clereway Liner" will not damage any animal and will create the condition that no milker -- however inefficient -- can do any damage to the animal while milking. Overmilking is made irrevelant.

The present type of liner much damage to external parts and much more to the teat canal and canal lining, thus creating conditions which harbour all types of mastitis germs.

On freshly calved heifers and cows the present liner (where the vacuum seal is on the teat) cuts into the teat and does much damage. The "Clereway Liner" does none of these things and therefore must produce more milk per lactation.

A-section representing one half of liner. This half is resistant to air pressure normal in pulsation chamber.

B-represents the flexible half - is not resistant to air pressure, being weakes for top of teat, with resistance increasing evenly down the liner, giving a smooth downward stroke A+B represent inner wall of pulsation chamber.

C--outline of "Clereway" pull-through liner with inflation mouth-piece. The centre hole being large and sealing on udder of cow - not on teat as on present liners.

Claims

1. The liner is made of rubber or other similar material.

2. The mouthpiece of liner is "open" and seals on base of udder. NOT ON TEAT.

3. The body of liner is of varying strength.

Approximately one half in longitude has a varying resistance to air pressure slowly increasing from mouth of liner to the point of contact with teat orifice.

The other half is resistant to air pressure.

4. The mouthpiece of liner is connected to shell by any method in use.

5. Shells must be of aluminium or other light material.

6. All those points combine to make a milking cluster.

New Claims or Amendments to Claims filed on 22 April 1981 Superseded Claims 1-6 New or Amended Claims: 1. The wide mouth of liner, Fig. 2-i, prevents damage to teat and to the teat canal and lining particularly in the early part of lactation and more particularly with animals in their first lactation.

2. The body of liner, Fig. 1-6, is resistant to air pressure from the pulsation chamber for the full length of liner and for approximately 5/9 of circumference. The remaining 4/9, Fig. 1-7, being of a gradually increasing resistance to pressure from top to bottom creating a gentle and smooth pulsation stroke.

3. The combination of 1 and 2 controls the pulsation stroke in both strength and direction thus the ability to adjust for best results in any herd.

4. The shell is of aluminium or other light and strong material as with this cluster weight to hold against the 'creep up' of shells is unnecessary.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (4)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION The "Clereway Liner" This is a pull through liner designed for use with shells made from aliminium or other light, strong materials. The teat end of the "Clereway Liner" is wide enough to seal itself on the vessel of the animal being milked, and not on the teat, as in all present machines. This move does away with the weight of shells and claw arrived at as a means of preventing the liner from creeping up. Hence the use of light shells. Unlike all other liners the "Clereway Liner" is designed to have varying strengths and thicknesses through the body. The liner forms the inner wall of the pulsation chamber. One half of the liner (top to bottom) is thick enough and strong enough to resist the air pressure in the pulsation chamber, the other half of the liner (top to bottom) varies in thickness and strength, being weakest at the top of the teat and stronger at the bottom, thus giving a smooth change all the way down the teat, creating the same feeling as a suckling calf. The whole gives a very comfortable milking machine and strength of air in the pulsation chamber can be varied to suit any herd or breed of cattle. This system is of great importance to dairy cows, particularly in the early stages of the lactation which is so important to all concerned. No damage can be done while milking with the "Clereway Liner" as creep-up is irrelevant and the teat canal is never checked and damaged as happens in all other systems. Briefly, the "Clereway Liner" will not damage any animal and will create the condition that no milker -- however inefficient -- can do any damage to the animal while milking. Overmilking is made irrevelant. The present type of liner much damage to external parts and much more to the teat canal and canal lining, thus creating conditions which harbour all types of mastitis germs. On freshly calved heifers and cows the present liner (where the vacuum seal is on the teat) cuts into the teat and does much damage. The "Clereway Liner" does none of these things and therefore must produce more milk per lactation. A-section representing one half of liner. This half is resistant to air pressure normal in pulsation chamber. B-represents the flexible half - is not resistant to air pressure, being weakes for top of teat, with resistance increasing evenly down the liner, giving a smooth downward stroke A+B represent inner wall of pulsation chamber. C--outline of "Clereway" pull-through liner with inflation mouth-piece. The centre hole being large and sealing on udder of cow - not on teat as on present liners. Claims

1. The liner is made of rubber or other similar material.

2. The mouthpiece of liner is "open" and seals on base of udder. NOT ON TEAT.

3. The body of liner is of varying strength.

Approximately one half in longitude has a varying resistance to air pressure slowly increasing from mouth of liner to the point of contact with teat orifice.

The other half is resistant to air pressure.

4. The shell is of aluminium or other light and strong material as with this cluster weight to hold against the 'creep up' of shells is unnecessary.

4. The mouthpiece of liner is connected to shell by any method in use.

5. Shells must be of aluminium or other light material.

6. All those points combine to make a milking cluster.

New Claims or Amendments to Claims filed on 22 April 1981 Superseded Claims 1-6 New or Amended Claims:

1. The wide mouth of liner, Fig. 2-i, prevents damage to teat and to the teat canal and lining particularly in the early part of lactation and more particularly with animals in their first lactation.

2. The body of liner, Fig. 1-6, is resistant to air pressure from the pulsation chamber for the full length of liner and for approximately 5/9 of circumference. The remaining 4/9, Fig. 1-7, being of a gradually increasing resistance to pressure from top to bottom creating a gentle and smooth pulsation stroke.

3. The combination of 1 and 2 controls the pulsation stroke in both strength and direction thus the ability to adjust for best results in any herd.