US3377992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Milking system
Assignee: Alfa Laval AB
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Filing: 1964-08-12
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Granted: 1968-04-16
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Expires: 1984-08-12
Abstract
No abstract record available.
Inventors
- 👤 Baum Engelbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:57
CPC Classifications
A; A01; A01J; A01J5/00; A01J5/04; A01J5/047; A01J5/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A MILKING SYSTEM COMPRISING AN OPERATING VACUUM PIPE, A TEAT CUP HAVING A PULSATION TUBE AND A MILK OUTLET TUBE, MEANS INCLUDING A PULSATOR CONNECTING SAID PULSATION TUBE TO SAID OPERATING VACUUM PIPE, A CLAW CONNECTED TO THE MILK OUTLET TUBE, A MILK-COLLECTING PIPE LEADING FROM THE LOWER PART OF SAID CLAW, MEANS FOR MAINTAINING A SUBSTANTIALLY CONSTANT VACUUM IN SAID OPERATING VACUUM PIPE WHILE MAINTAINING A SUBSTANTIALLY HIGHER VACUUM IN SAID MILK-COLLECTING PIPE, A DUCT CONNECTING THE UPPER PART OF THE CLAW TO SAID OPERATING VACUUM PIPE INDEPENDENTLY OF SAID PULSATOR, AND A VALVE POSITIONED TO CONTROL THE COMMUNICATION FROM THE CLAW THROUGH SAID DUCT TO THE OPERATING VACUUM PIPE AND OPERABLE TO CLOSE SAID COMMUNICATION IN RESPONSE TO A SUBSTANTIAL INCREASE OF THE PRESSURE IN SAID UPPER PART OF THE CLAW RELATIVE TO THE PRESSURE IN THE OPERATING VACUUM PIPE.
Claim 2
Dependent Claim
142 words
A MILKING SYSTEM COMPRISING AN OPERATING VACUUM PIPE, A TEAT CUP HAVING A PULSATION TUBE AND A MILK OUTLET TUBE, MEANS INCLUDING A PULSATOR CONNECTING SAID PULSATION TUBE TO SAID OPERATING VACUUM PIPE, A CLAW CONNECTED TO THE MILK OUTLET TUBE, A MILK-COLLECTING PIPE LEADING FROM THE LOWER PART OF SAID CLAW, MEANS FOR MAINTAINING A SUBSTANTIALLY CONSTANT VACUUM IN SAID OPERATING VACUUM PIPE WHILE MAINTAINING A SUBSTANTIALLY HIGHER VACUUM IN SAID MILK-COLLECTING PIPE, A DUCT CONNECTING THE UPPER PART OF THE CLAW TO SAID OPERATING VACUUM PIPE INDEPENDENTLY OF SAID PULSATOR, AND A VALVE POSITIONED TO CONTROL THE COMMUNICATION FROM THE CLAW THROUGH SAID DUCT TO THE OPERATING VACUUM PIPE AND OPERABLE TO CLOSE SAID COMMUNICATION IN RESPONSE TO A SUBSTANTIAL INCREASE OF THE PRESSURE IN SAID UPPER PART OF THE CLAW RELATIVE TO THE PRESSURE IN THE OPERATING VACUUM PIPE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |