Patent US3335740A successfully refreshed from Google Patents.
US3335740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: ACF Industries Inc
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Filing: 1964-08-10
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Granted: 1967-08-15
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Clifford E Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:09
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; Y; Y10; Y10T; Y10T137/00; Y10T137/402; Y10T137/6851; Y10T137/7043; Y10T137/8158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
A VALVE SYSTEM ADAPTED FOR INTERMITTENT SUBMERSION IN SEA WATER, SAID VALVE 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 MOVEMENT TO THE STEM AND VALVE MEMBER, PRESSURE BALANCING AND VOLUME CONTROLLING MEANS ENCLOSING THE FREE END OF THE STEM, SAID PRESSURE BALANCINNG AND VOLUME CONTROLLING MEANS INCLUDING A HOUSING DEFINING A PRESSURE BALANCING CHAMBER, SAID CHAMBER HAVING AN OPENING AT THE UPPER EXTREMITY THEREOF ESTABLISHING FLUID COMMUNICATION BETWEEN SAID SEA WATER AND SAID CHAMBER, SAID CHAMBER BEING SUBSTANTIALLY FILLED WITH A LIQUID HAVING A LOWER SPECIFIC GRAVITY THAN THE SPACIFIC GRAVITY OF SEA WATER AND WHICH WILL NOT MIX WITH SEA WATER, SAID LIQUID DEFINING A FLUID SEAL WITH SAID SEA WATER TO PREVENT CONTAMINATION OF SAID POWER OPERATION MEANS, MEANS FOR RETAINING SAID LIQUID WITHIN SAID CHAMBER DURING ALTERNATE SUBMERSION AND EXPOSURE OF SAID HOUSING RELATIVE TO THE SURFACE OF SAID SEA WATER.
Claim 2
Dependent Claim
221 words
A VALVE SYSTEM ADAPTED FOR INTERMITTENT SUBMERSION IN SEA WATER, SAID VALVE 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 MOVEMENT TO THE STEM AND VALVE MEMBER, PRESSURE BALANCING AND VOLUME CONTROLLING MEANS ENCLOSING THE FREE END OF THE STEM, SAID PRESSURE BALANCINNG AND VOLUME CONTROLLING MEANS INCLUDING A HOUSING DEFINING A PRESSURE BALANCING CHAMBER, SAID CHAMBER HAVING AN OPENING AT THE UPPER EXTREMITY THEREOF ESTABLISHING FLUID COMMUNICATION BETWEEN SAID SEA WATER AND SAID CHAMBER, SAID CHAMBER BEING SUBSTANTIALLY FILLED WITH A LIQUID HAVING A LOWER SPECIFIC GRAVITY THAN THE SPACIFIC GRAVITY OF SEA WATER AND WHICH WILL NOT MIX WITH SEA WATER, SAID LIQUID DEFINING A FLUID SEAL WITH SAID SEA WATER TO PREVENT CONTAMINATION OF SAID POWER OPERATION MEANS, MEANS FOR RETAINING SAID LIQUID WITHIN SAID CHAMBER DURING ALTERNATE SUBMERSION AND EXPOSURE OF SAID HOUSING RELATIVE TO THE SURFACE OF SAID SEA WATER.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |