Milking machine and a method of milking by means of the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 25, 1992
Grant Date -
N/A
app pub date -
Aug 31, 1990
filing date -
Mar 11, 1988
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
A milking apparatus comprises a teat cup (2) with a liner (3), means (6-8, 9-11, 13-15) for subjecting the interior of the liner to a pressure which is lower than atmospheric pressure, and for subjecting the pulsation chamber (5) formed between the teat cup and the liner to a pulsating pressure varying between a low pressure and a high pressure, which high pressure is higher than the pressure in the interior of the liner. Means are provided (12, 16, 18) for controlling the respective pressures in the liner and the pulsation chamber. A flow sensing member (17) senses the flow of the milk which during milking increases to a main flow, then amounts to the main flow, and diminishes from the main flow in a terminating phase of milking. The pressure control means is adapted to control the various pressures in response to the flow sensing member (17) sensing during the terminating milking phase that the milk flow has diminished to a predetermined portion of the main flow, such that the low pressure in the pulsation chamber is higher than the pressure in the liner, at least during a part of the terminating milking phase.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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ALFA-LAVAL AGRICULTURE INTERNATIONAL AB A CORP OF TUMBA SWEDEN | FARM CENTER BOX 39 S-147 21 TUMBA |
International Classification(s)

- 1990 Application Filing Year
- A01J Class
- 28 Applications Filed
- 2 Patents Issued To-Date
- 7.15 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Pettersson, Torbjorn | Gnesta, SE | 4 | 62 |
# of filed Patents : 4 Total Citations : 62 | |||
rnerfors, Benny | Hagersten, SE | 2 | 32 |
# of filed Patents : 2 Total Citations : 32 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 13 Citation Count
- A01J Class
- 0 % this patent is cited more than
- 33 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Aug 25, 2003 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Nov 01, 2002 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 16, 1999 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Aug 07, 1995 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Feb 25, 1992 | I | Issuance | |
Feb 12, 1992 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 07, 1991 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Sep 25, 1990 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:PETTERSSON, TORBJORN;ORNERFORS, BENNY;REEL/FRAME:005471/0495 Owner name: ALFA-LAVAL AGRICULTURE INTERNATIONAL AB, A CORP. O Effective Date: Sep 25, 1990 |
Aug 31, 1990 | F | Filing | |
Mar 11, 1988 | PD | Priority Date |

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