Inflatable dock seal
Abstract
Abstract AN INFLATABLE DOCK SEAL FOR CLOSING AN OPENING SUCH AS A LOADING DOCK WITH RESPECT TO A TRUCK OR TRAILER INCLUDES AN UPPER HORIZONTAL INFLATABLE MEMBER MOVABLE DOWNWARDLY AGAINST THE TOP OF THE TRUCK OR TRAILER AND A PAIR OF VERTICAL INFLATABLE MEMBERS MOVABLE OUTWARDLY IN CURVING CONFIGURATIONS TO ENGAGE THE SIDES OF THE TRUCK OR TRAILER. THE HORIZONTAL AND VERTICAL INFLATABLE MEMBERS ARE CLOSED WITH RESPECT TO ONE ANOTHER AT THEIR JUNCTIONS AND THE VERTICAL INFLATABLE MEMBERS ARE ARCUATE IN INFLATED CONFIGURATION SO AS TO MOVE OUTWARDLY AND TOWARD ONE ANOTHER RESTRICTING THE OPENING IN WHICH THE TRUCK OR TRAILER IS POSITIONED. THE INFLATABLE MEMBERS ARE FORMED OF WATERPROOF FABRIC AND MEANS FOR INFLATING THE SAME IS PROVIDED AND MEANS FOR RESILIENTLY RETRACTING THE MEMBERS WHEN NON INFLATED ARE ALSO PROVIDED.
Inventors
- 👤 Neal L O
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |