US3254805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable liquid metering device having a fluid container subjected to intermittent internal pressures different from that of atmospheric pressure
Assignee: Individual
•
Filing: 1963-08-01
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Granted: 1966-06-07
•
Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 Lloyd D Barger
- 👤 Sts Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:27
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/12; F16T1/14; G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; G05D16/107; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3102; Y10T137/3105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A FLUID DISPENSER, A CONTAINER ADAPTED TO HAVE A DISPENSABLE FLUID, A HOUSING HAVING A CYLINDER AREA, A PISTON SLIDABLE WITHIN THE CYLINDER AREA OF SAID HOUSING, A CONDUIT CONNECTING THE INSIDE OF SAID CONTAINER AND THE INSIDE OF SAID CYLINDER AREA OF SAID HOUSING, A SPRING LOADED VALVE IMPOSED IN SAID CONDUIT AND CAPABLE OF BEING MOVED TO AN OPEN POSITION WHEN SAID PISTON IS IN ONE POSITION OF ITS SLIDABLE MOVEMENT, SAID CONDUIT NORMALLY IN A CLOSED POSITION PREVENTING COMMUNICATING BETWEEN SAID CONTAINER AND CYLINDER AREA, A PORT IN SAID HOUSING COMMUNICATING WITH THE INSIDE OF THE CYLINDER AREA OF SAID HOUSING WHEN SAID PISTON IS IN A SECOND POSITION OF ITS SLIDABLE MOVEMENT,
Claim 2
Dependent Claim
117 words
IN A FLUID DISPENSER, A CONTAINER ADAPTED TO HAVE A DISPENSABLE FLUID, A HOUSING HAVING A CYLINDER AREA, A PISTON SLIDABLE WITHIN THE CYLINDER AREA OF SAID HOUSING, A CONDUIT CONNECTING THE INSIDE OF SAID CONTAINER AND THE INSIDE OF SAID CYLINDER AREA OF SAID HOUSING, A SPRING LOADED VALVE IMPOSED IN SAID CONDUIT AND CAPABLE OF BEING MOVED TO AN OPEN POSITION WHEN SAID PISTON IS IN ONE POSITION OF ITS SLIDABLE MOVEMENT, SAID CONDUIT NORMALLY IN A CLOSED POSITION PREVENTING COMMUNICATING BETWEEN SAID CONTAINER AND CYLINDER AREA, A PORT IN SAID HOUSING COMMUNICATING WITH THE INSIDE OF THE CYLINDER AREA OF SAID HOUSING WHEN SAID PISTON IS IN A SECOND POSITION OF ITS SLIDABLE MOVEMENT,
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 |