Patent US3131648A successfully refreshed from Google Patents.
US3131648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure cushion dunnage apparatus
Assignee: Westinghouse Air Brake Co
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Filing: 1960-12-20
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Granted: 1964-05-05
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Expires: 1980-12-20
Abstract
No abstract record available.
Inventors
- 👤 Fritz O Seger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:49
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/006; B60; B60P; B60P7/00; B60P7/06; B60P7/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A DUNNAGE BAG SYSTEM, COMPRISING, IN COMBINATION WITH A CARRYING CONVEYANCE, A PLURALITY OF DUNNAGE BAGS DISPOSED IN SAID CONVEYANCE FOR CUSHIONING CARGO UNITS AND PROVIDING A SHORING FORCE, EACH OF SAID DUNNAGE BAGDS COMPRISING AN AIR IMPERVIOUS CASING, A COMPRESSIBLE, RESILIENT AND AIR PERVIOUS MATERIAL FILLER MEANS HAVING A PREDETERMINED COMPRESSION LOADING DISPOSED IN SAID CASING IN UNLOADED AND EXPANDED CONDITION, AN AIR CONDUIT SYSTEM IN SAID CONVEYANCE AND CONNECTED TO SAID BAGS, AND EVACUATOR RELEASABLY CONNECTED TO SAID AIR CONDUIT SYSTEM FOR EVACUATING AIR FROM SAID BAGS TO EFFECT COLLAPSE OF SAID BAGS PRIOR TO LOADING OF CARGO IN SAID CONVEYANCE, AND VALVE MEANS FOR CONNECTING SAID CONDUIT SYSTEM TO ATMOSPHERE FOR EFFECTING EXPANSION OF SAID BAGS TO CUSHION SAID CARGO AFTER SAID CARGO IS LOADED IN SAID CONVEYANCE.
Claim 2
Dependent Claim
131 words
A DUNNAGE BAG SYSTEM, COMPRISING, IN COMBINATION WITH A CARRYING CONVEYANCE, A PLURALITY OF DUNNAGE BAGS DISPOSED IN SAID CONVEYANCE FOR CUSHIONING CARGO UNITS AND PROVIDING A SHORING FORCE, EACH OF SAID DUNNAGE BAGDS COMPRISING AN AIR IMPERVIOUS CASING, A COMPRESSIBLE, RESILIENT AND AIR PERVIOUS MATERIAL FILLER MEANS HAVING A PREDETERMINED COMPRESSION LOADING DISPOSED IN SAID CASING IN UNLOADED AND EXPANDED CONDITION, AN AIR CONDUIT SYSTEM IN SAID CONVEYANCE AND CONNECTED TO SAID BAGS, AND EVACUATOR RELEASABLY CONNECTED TO SAID AIR CONDUIT SYSTEM FOR EVACUATING AIR FROM SAID BAGS TO EFFECT COLLAPSE OF SAID BAGS PRIOR TO LOADING OF CARGO IN SAID CONVEYANCE, AND VALVE MEANS FOR CONNECTING SAID CONDUIT SYSTEM TO ATMOSPHERE FOR EFFECTING EXPANSION OF SAID BAGS TO CUSHION SAID CARGO AFTER SAID CARGO IS LOADED IN SAID CONVEYANCE.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |