US3280782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine anchor
Assignee: North American Aviation Corp
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Filing: 1965-05-24
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Granted: 1966-10-25
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Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 Carl H Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:27
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/24; B63B21/26; B63B21/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
MARINE ANCHOR ASSEMBLY FOR ACTUATION BY ENVIRONMENTAL FLUID HAVING AN ASSOCIATED HYDROSTATIC PRESSURE THAT SUBSTANTIALLY EXCEEDS ATMOSPHERIC PRESSURE, AND COMPRISING: (A) HOLLOW CYLINDER MEANS HAVING CLOSED UPPER AND LOWER ENDS AND HAVING AN INTERIOR THAT CONTAINS GAS AT A PRESSURE ESSENTIALLY CORRESPONDING TO ATMOSPHERIC PRESSURE, (B) ANCHOR SHAFT MEANS PARTIALLY WITHIN SAID CYLINDER MEANS INTERIOR AND SLIDABLY PROJECTING THROUGH SAID CYLINDER MEANS CLOSED LOWER WITH ATTACHED ANCHOR FLUKES POSITIONED BELOW SAID CYLINDER MEANS, (C) PISTON MEANS COOPERATIVELY POSITIONED IN SAID CYLINDER MEANS IN DRIVING RELATION TO SAID ANCHOR SHAFT MEANS AND SEPARATING SAID CYLINDER MEANS INTERIOR INTO UPPER AND LOWER PORTIONS EACH OF VARIABLE VOLUME, AND (D) INLET PORT MEANS LOCATED IN THE UPPER REGION OF SAID CYLINDER MEANS AND ARRANGED TO CONDUCT ACTUATING ENVIRONMENTAL FLUID FROM REGIONS EXTERIOR TO THE ANCHOR ASSEMBLY INTO SAID CYLINDER MEANS UPPER INTERIOR PORTION OPENED,
Claim 2
Dependent Claim
141 words
MARINE ANCHOR ASSEMBLY FOR ACTUATION BY ENVIRONMENTAL FLUID HAVING AN ASSOCIATED HYDROSTATIC PRESSURE THAT SUBSTANTIALLY EXCEEDS ATMOSPHERIC PRESSURE, AND COMPRISING: (A) HOLLOW CYLINDER MEANS HAVING CLOSED UPPER AND LOWER ENDS AND HAVING AN INTERIOR THAT CONTAINS GAS AT A PRESSURE ESSENTIALLY CORRESPONDING TO ATMOSPHERIC PRESSURE, (B) ANCHOR SHAFT MEANS PARTIALLY WITHIN SAID CYLINDER MEANS INTERIOR AND SLIDABLY PROJECTING THROUGH SAID CYLINDER MEANS CLOSED LOWER WITH ATTACHED ANCHOR FLUKES POSITIONED BELOW SAID CYLINDER MEANS, (C) PISTON MEANS COOPERATIVELY POSITIONED IN SAID CYLINDER MEANS IN DRIVING RELATION TO SAID ANCHOR SHAFT MEANS AND SEPARATING SAID CYLINDER MEANS INTERIOR INTO UPPER AND LOWER PORTIONS EACH OF VARIABLE VOLUME, AND (D) INLET PORT MEANS LOCATED IN THE UPPER REGION OF SAID CYLINDER MEANS AND ARRANGED TO CONDUCT ACTUATING ENVIRONMENTAL FLUID FROM REGIONS EXTERIOR TO THE ANCHOR ASSEMBLY INTO SAID CYLINDER MEANS UPPER INTERIOR PORTION OPENED,
References Cited (Backward Citations)
US3118417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |