Patent US3272399A successfully refreshed from Google Patents.
US3272399A
Expired / Lapsed
US
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Dispenser for fluent materials
Assignee: Machine Made Sales Pty Ltd
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Filing: 1964-10-27
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Granted: 1966-09-13
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Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Dight Walter Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:42
CPC Classifications
A; A47; A47J; A47J47/00; A47J47/01; A47J31/00; A47J31/40; A47J31/404; G; G01; G01F; G01F11/00; G01F11/10; G01F11/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
A DISPENSER FOR FLUENT MATERIALS COMPRISING A CONTAINER, A MATERIAL OUTLET NECK EXTENDING DOWNWARDLY FROM SAID CONTAINER, A BUTTERFLY VALVE IN SAID NECK COMPRISING A VALVE VANE MOUNTED SO AS TO ROTATE ABOUT AN AXIS PIERCING SAID NECK, THE NECK BEING SUCH THAT THE BOUNDARY OF THE NECK CROSS-SECTION TAKEN ON THE TRANSVERSE CROSS-SECTIONAL PLANE IN WHICH SAID AXIS LIES DOES NOT INCLUDE APPRECIABLE PORTIONS PERPENDICULAR TO THE AXIS, SUCH THAT THE WIDTH OF SAID CROSS-SECTION, WHEN MEASURED IN DIRECTIONS PARALLEL TO SAID AXIS, PROGRESSIVELY DECREASES AS THE DISTANCE FROM THE AXIS INCREASES, AND SUCH THAT THE CROSS-SECTION OF THE NECK IS CONSTANT THROUGHOUT THE PORTION OF THE NECK SURROUNDING THE VALVE, AND THE VALVE VANE HAVING THE SHAPE OF AN OBLIQUE SECTION THROUGH SAID NECK PORTION TAKEN ON AN OBLIQUE SECTIONAL PLANE IN WHICH SAID AXIS LIES, AND VALVE OPERATING MEANS ADAPTED TO SHIFT SAID BUTTERFLY VALVE RAPIDLY FROM ONE CLOSED POSITION THROUGH AN INTERMEDIATE OPEN POSITION TO ANOTHER CLOSED POSITION, SAID OPERATING MEANS BEING SNAP-ACTING AND INCLUDING AN OPERATING SPRING WHICH MAY BE STRETCHED AND AT THE SAME TIME SHIFTED UNTIL ITS LINE OF ACTION CROSSES A DEAD CENTER POSITION WHEREON THE SPRING CONTRACTS TO MOVE THE VALVE.
Claim 2
Dependent Claim
200 words
A DISPENSER FOR FLUENT MATERIALS COMPRISING A CONTAINER, A MATERIAL OUTLET NECK EXTENDING DOWNWARDLY FROM SAID CONTAINER, A BUTTERFLY VALVE IN SAID NECK COMPRISING A VALVE VANE MOUNTED SO AS TO ROTATE ABOUT AN AXIS PIERCING SAID NECK, THE NECK BEING SUCH THAT THE BOUNDARY OF THE NECK CROSS-SECTION TAKEN ON THE TRANSVERSE CROSS-SECTIONAL PLANE IN WHICH SAID AXIS LIES DOES NOT INCLUDE APPRECIABLE PORTIONS PERPENDICULAR TO THE AXIS, SUCH THAT THE WIDTH OF SAID CROSS-SECTION, WHEN MEASURED IN DIRECTIONS PARALLEL TO SAID AXIS, PROGRESSIVELY DECREASES AS THE DISTANCE FROM THE AXIS INCREASES, AND SUCH THAT THE CROSS-SECTION OF THE NECK IS CONSTANT THROUGHOUT THE PORTION OF THE NECK SURROUNDING THE VALVE, AND THE VALVE VANE HAVING THE SHAPE OF AN OBLIQUE SECTION THROUGH SAID NECK PORTION TAKEN ON AN OBLIQUE SECTIONAL PLANE IN WHICH SAID AXIS LIES, AND VALVE OPERATING MEANS ADAPTED TO SHIFT SAID BUTTERFLY VALVE RAPIDLY FROM ONE CLOSED POSITION THROUGH AN INTERMEDIATE OPEN POSITION TO ANOTHER CLOSED POSITION, SAID OPERATING MEANS BEING SNAP-ACTING AND INCLUDING AN OPERATING SPRING WHICH MAY BE STRETCHED AND AT THE SAME TIME SHIFTED UNTIL ITS LINE OF ACTION CROSSES A DEAD CENTER POSITION WHEREON THE SPRING CONTRACTS TO MOVE THE VALVE.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |