US3324875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: ACF Industries Inc
•
Filing: 1964-05-05
•
Granted: 1967-06-13
•
Expires: 1984-05-05
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:16
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/035; E21B33/037; E21B33/0375; E21B43/00; E21B43/01; F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; E21B34/00; E21B34/02; E21B34/04; Y; Y10; Y10T; Y10T137/00; Y10T137/402; Y10T137/6851; Y10T137/7043; Y10T137/8158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A VALVE FOR SUBMERGING IN SEAWATER AND COMPRISING A VALVE BODY FORMING A VALVE CHAMBER AND HAVING FLOW PASSAGES COMMUNICATING WITH THE VALVE CHAMBER, A VALVE MEMBER HAVING A PORT FORMED THEREIN AND BEING MOVABLE BETWEEN OPEN AND CLOSED POSITIONS RELATIVE TO THE FLOW PASSAGES, A STEM CONNECTED TO THE VALVE MEMBER AND HAVING A FREE END THEREOF EXTENDING OUTWARDLY OF THE VALVE BODY, SAID STEM BEING MOVABLE AXIALLY TO IMPART MOVEMENT TO THE VALVE MEMBER, POWER OPERATED MEANS SURROUNDING A PORTION OF SAID STEM AND BEING OPERATIVE TO IMPART AXIAL MOVMENT TO THE STEM AND VALVE MEMBER, A PRESSURE BALANCING AND VOLUME CONTROLLING HOUSING DEFINING A CHAMBER FOR SURROUNDING THE FREE END OF THE STEM, SAID CHAMBER HAVING A LIQUID THEREIN OF LOWER SPECIFIC
Claim 2
Dependent Claim
125 words
A VALVE FOR SUBMERGING IN SEAWATER AND COMPRISING A VALVE BODY FORMING A VALVE CHAMBER AND HAVING FLOW PASSAGES COMMUNICATING WITH THE VALVE CHAMBER, A VALVE MEMBER HAVING A PORT FORMED THEREIN AND BEING MOVABLE BETWEEN OPEN AND CLOSED POSITIONS RELATIVE TO THE FLOW PASSAGES, A STEM CONNECTED TO THE VALVE MEMBER AND HAVING A FREE END THEREOF EXTENDING OUTWARDLY OF THE VALVE BODY, SAID STEM BEING MOVABLE AXIALLY TO IMPART MOVEMENT TO THE VALVE MEMBER, POWER OPERATED MEANS SURROUNDING A PORTION OF SAID STEM AND BEING OPERATIVE TO IMPART AXIAL MOVMENT TO THE STEM AND VALVE MEMBER, A PRESSURE BALANCING AND VOLUME CONTROLLING HOUSING DEFINING A CHAMBER FOR SURROUNDING THE FREE END OF THE STEM, SAID CHAMBER HAVING A LIQUID THEREIN OF LOWER SPECIFIC
References Cited (Backward Citations)
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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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |