US3254683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid delivery device
Assignee: Distillers Co Yeast Ltd
•
Filing: 1965-02-01
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Granted: 1966-06-07
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Expires: 1985-02-01
Abstract
No abstract record available.
Inventors
- 👤 Jennings Alfred Peter Henry
- 👤 Munday Charles Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:40
CPC Classifications
B; B65; B65B; B65B57/00; B65B57/10; B65B57/14; B65B57/145; B65B3/00; B65B3/26; B65B3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A LIQUID DELIVERY DEVICE FOR FILLING CONTAINERS WITH LIQUID TO A PREDETERMINED LEVEL COMPRISING A FILLER TUBE, A VALVE FOR CONTROLLING THE PASSAGE OF LIQUID THROUGH SAID TUBE, A DIP TUBE HAVING ONE END THEREOF EXTENDING INTO SAID CONTAINER, A TWO STAGE PNEUMATIC CONTROL CYLINDER HAVING TWO AIR INLETS AND TWO OUTLETS, MEANS FOR CONTROLLING THE AIR PRESSURE IN SAID PNEUMATIC CONTROL CYLINDER BY VARYING THE AIR FLOW THROUGH THE AIR OUTLETS IN RESPONSE TO THE PRESSURE IN THE TUBE DUE TO THE LEVEL OF LIQUID THEREIN, MEANS FOR CLOSING VALVE IN TWO SUCCESSIVE STAGES RESPONSIVE TO THE AIR PRESSURE IN SAID PNEUMATIC CONTROL CYLINDER.
Claim 2
Dependent Claim
105 words
A LIQUID DELIVERY DEVICE FOR FILLING CONTAINERS WITH LIQUID TO A PREDETERMINED LEVEL COMPRISING A FILLER TUBE, A VALVE FOR CONTROLLING THE PASSAGE OF LIQUID THROUGH SAID TUBE, A DIP TUBE HAVING ONE END THEREOF EXTENDING INTO SAID CONTAINER, A TWO STAGE PNEUMATIC CONTROL CYLINDER HAVING TWO AIR INLETS AND TWO OUTLETS, MEANS FOR CONTROLLING THE AIR PRESSURE IN SAID PNEUMATIC CONTROL CYLINDER BY VARYING THE AIR FLOW THROUGH THE AIR OUTLETS IN RESPONSE TO THE PRESSURE IN THE TUBE DUE TO THE LEVEL OF LIQUID THEREIN, MEANS FOR CLOSING VALVE IN TWO SUCCESSIVE STAGES RESPONSIVE TO THE AIR PRESSURE IN SAID PNEUMATIC CONTROL CYLINDER.
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |