Liquid dispensing device
Abstract
Abstract A CONTAINER IS PROVIDED WITH A DISPENSING DEVICE INCLUDING A CAP-LIKE HOUSING WHICH SUPPORTS A SPRING-BIASED TUBULAR VALVE MEMBER DEFINING SEPARATE LIQUID AND AIR ASSAGES HAVING ENLARGED INNER ENDS CLOSED BY A PLUG MEMBER. WHEN THE VALVE MEMBER IS MOVED TO ITS OPEN POSITION, THE LIQUID PASSAGE OPENS THROUGH A LARGE INLET TO THE CONTAINER CHAMBER PRIOR TO THE AIR PASSAGE, AND THE END OF A SLEEVE ON THE HOUSING FORMS A SEAL WITH THE ALVE MEMBER. WHEN THE VALVE MEMBER IS MOVED TO ITS CLOSED POSITION, THE LIQUID PASSAGE OPENS DIRECTLY TO ATMOSPHERE SO THAT LIQUID IS ENTRAPPED WITHIN THE PASSAGE. THE CAP-LIKE HOUSING HAS AN INNER SURFACE WHICH COOPER- ATES WITH THE NECK OF THE CONTAINER OF FORM A RADIALLY EXPANDING LIQUID TIGHT SEAL THEREBETWEEN.
Inventors
- 👤 Charles G Campbell
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |