US3298346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sail construction
Assignee: Individual
•
Filing: 1965-04-22
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Granted: 1967-01-17
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Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Steven M Cochran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:51
CPC Classifications
B; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63H9/061; B63H9/0615
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN INFLATABLE SAIL FOR SAILING CRAFT COMPRISING, IN COMBINATION, FIRST AND SECOND SAIL SEGMENTS OF MATERIAL WHICH IS SUBSTANTIALLY IMPERMEABLE TO FLUIDS POSITIONED ADJACENT TO EACH OTHER AND SECURED TO EACH OTHER ADJACENT THE EDGES THEREOF TO FORM AN AIR CHAMBER HAVING AN AIRTIGHT SEAL AROUND THE PERIPHERY THEREOF, A PLURALITY OF HORIZONTALLY DISPOSED TRANSVERSE WEBS PARALLEL TO EACH OTHER EXTENDING BETWEEN SAID SAIL SEGMENTS AND SECURED THERETO, SAID WEBS DIVIDING SAID AIR CHAMBER INTO SEGMENTED CHAMBERS, AND MEANS FORMING A GAS VALVE SECURED TO SAID SAIL AND COMMUNICATIING WITH SAID AIR CHAMBER WHEREBY SAID SAIL MAY BE INFLATED TO FORM AN AERODYNAMIC CROSS-SECTION THROUGHOUT SAID SAIL, SAID WEBS MAINTAINING SAID CROSS SECTION IN BOTH LIGHT AND HEAVY WINDS.
Claim 2
Dependent Claim
119 words
AN INFLATABLE SAIL FOR SAILING CRAFT COMPRISING, IN COMBINATION, FIRST AND SECOND SAIL SEGMENTS OF MATERIAL WHICH IS SUBSTANTIALLY IMPERMEABLE TO FLUIDS POSITIONED ADJACENT TO EACH OTHER AND SECURED TO EACH OTHER ADJACENT THE EDGES THEREOF TO FORM AN AIR CHAMBER HAVING AN AIRTIGHT SEAL AROUND THE PERIPHERY THEREOF, A PLURALITY OF HORIZONTALLY DISPOSED TRANSVERSE WEBS PARALLEL TO EACH OTHER EXTENDING BETWEEN SAID SAIL SEGMENTS AND SECURED THERETO, SAID WEBS DIVIDING SAID AIR CHAMBER INTO SEGMENTED CHAMBERS, AND MEANS FORMING A GAS VALVE SECURED TO SAID SAIL AND COMMUNICATIING WITH SAID AIR CHAMBER WHEREBY SAID SAIL MAY BE INFLATED TO FORM AN AERODYNAMIC CROSS-SECTION THROUGHOUT SAID SAIL, SAID WEBS MAINTAINING SAID CROSS SECTION IN BOTH LIGHT AND HEAVY WINDS.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |