US3208639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed fluid dispensing system for oxidizable fluids
Assignee: Finesse Products Inc
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Filing: 1964-05-06
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Granted: 1965-09-28
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Expires: 1984-05-06
Abstract
No abstract record available.
Inventors
- 👤 Edward M Marwell
- 👤 Curtis C Beusman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:51
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/04; B67D2210/00; B67D2210/00028; B67D2210/00047; B67D2210/0006; Y; Y10; Y10S; Y10S261/00; Y10S261/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A FLUID METERING AND DISPENSING SYSTEM COMPRISING: (A) A CLOSED FLUID RESEVOIR; (B) CLOSED METERING CHAMBER MEANS POSITIONED WITH THE UPPER EXTREMITY THEREOF ABOVE THE FLUID LEVEL IN SAID RESEVOIR; (C) FLUID CONDUIT MEANS CONNECTING SAID RESEVOIR AT A LEVEL BELOW THE FLUID LEVEL THEREIN TO SAID METERING CHAMBER MEANS AT A PREDETERMINED LEVEL; (D) PRESSURE CONDUIT MEANS CONNECTING SAID METERING CHAMBER MEANS AT THE UPPER EXTREMITY THEREOF TO SAID RESEVOIR AT A LEVEL ABOVE THE FLUID THEREIN; (E) MEANS FOR SELECTIVELY APPLYING A PREDETERMINED PRESSURE ABOVE ATMOSPHERIC ON THE FLUID IN SAID RESERVOIR TO FORCE SAID FLUID THROUGH SAID FLUID CONDUIT MEANS AND TO SAID METERING CHAMBER MEANS TO FILL SAID CHAMBER MEANS TO AT LEAST SAID PREDETERMINED LEVEL; (F) MEANS FOR EQUALIZING THE PRESSURE IN SAID RESEVOIR AND METERING CHAMBER MEANS AND IN SAID PRESSURE
Claim 2
Dependent Claim
137 words
A FLUID METERING AND DISPENSING SYSTEM COMPRISING: (A) A CLOSED FLUID RESEVOIR; (B) CLOSED METERING CHAMBER MEANS POSITIONED WITH THE UPPER EXTREMITY THEREOF ABOVE THE FLUID LEVEL IN SAID RESEVOIR; (C) FLUID CONDUIT MEANS CONNECTING SAID RESEVOIR AT A LEVEL BELOW THE FLUID LEVEL THEREIN TO SAID METERING CHAMBER MEANS AT A PREDETERMINED LEVEL; (D) PRESSURE CONDUIT MEANS CONNECTING SAID METERING CHAMBER MEANS AT THE UPPER EXTREMITY THEREOF TO SAID RESEVOIR AT A LEVEL ABOVE THE FLUID THEREIN; (E) MEANS FOR SELECTIVELY APPLYING A PREDETERMINED PRESSURE ABOVE ATMOSPHERIC ON THE FLUID IN SAID RESERVOIR TO FORCE SAID FLUID THROUGH SAID FLUID CONDUIT MEANS AND TO SAID METERING CHAMBER MEANS TO FILL SAID CHAMBER MEANS TO AT LEAST SAID PREDETERMINED LEVEL; (F) MEANS FOR EQUALIZING THE PRESSURE IN SAID RESEVOIR AND METERING CHAMBER MEANS AND IN SAID PRESSURE
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |