US3094223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load carrying apparatus
Assignee: Douglas Aircraft Co Inc
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Filing: 1961-07-19
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Granted: 1963-06-18
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Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 Paul L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:18
CPC Classifications
B; B65; B65G; B65G51/00; B65G51/02; B65G51/03; B62; B62M; B62M27/00; B62B; B62B2301/00; B62B2301/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
CARGO HANDLING APPARATUS COMPRISING: A MAIN SUPPORT HAVING A TRUSSWORK REINFORCEMENT, SAID TRUSSWORK BEING PERFORATED FOR THE PASSAGE OF AIR; A DIAGONALLY EXTENDING PULL HANDLE AT ONE SIDE OF THE SUPPORT; A LOWER LAMINA OF A SHEET-LIKE, FLEXIBLE MATERIAL AFFIXED TO SAID SUPPORT; AN INTERMEDIATE LAMINA OF RESILIENTLY COMPRESSIBLE MATERIAL INTERPOSED BETWEEN SAID MAIN SUPPORT AND LOWER LAMINA; A FLOOR-LIKE STRUCTURE HAVING A GENERALLY PLANAR SURFACE ACROSS WHICH THE MAIN SUPPORT IS PULLED WITH THE LOWER LAMINA IN FACE-TO-FACE CONTACT WITH SAID SURFACE, SAID INTERMEDIATE LAMINA BEING ADAPTED TO LOCALLY EXPAND AND BE COMPRESSED UPON FLEXURE OF THE LOWER LAMINA WHEN THE LATTER CONTACTS LOCAL IRREGULARITIES IN SAID SURFACE; A PLURALITY OF OUTLETS SPACED GENERALLY UNIFORMLY IN THE SURFACE OF SAID FLOOR-LIKE STRUCTURE; A SOURCE OF PRESSURIZED GAS COMMUNICATING WITH SAID OUTLETS; VALVE MEANS NORMALLY CLOSING SAID OUTLETS; AND OPERATING MEANS FOR OPENING SAID VALVES, SAID OPERATING MEANS PROTUDING ABOVE THE SURFACE OF THE FLOOR-LIKE STRUCTURE AND BEING DEPRESSIBLE BY SAID LOWER LAMINA WHEREBY TO EFFECT OPENING OF THE
Claim 2
Dependent Claim
169 words
CARGO HANDLING APPARATUS COMPRISING: A MAIN SUPPORT HAVING A TRUSSWORK REINFORCEMENT, SAID TRUSSWORK BEING PERFORATED FOR THE PASSAGE OF AIR; A DIAGONALLY EXTENDING PULL HANDLE AT ONE SIDE OF THE SUPPORT; A LOWER LAMINA OF A SHEET-LIKE, FLEXIBLE MATERIAL AFFIXED TO SAID SUPPORT; AN INTERMEDIATE LAMINA OF RESILIENTLY COMPRESSIBLE MATERIAL INTERPOSED BETWEEN SAID MAIN SUPPORT AND LOWER LAMINA; A FLOOR-LIKE STRUCTURE HAVING A GENERALLY PLANAR SURFACE ACROSS WHICH THE MAIN SUPPORT IS PULLED WITH THE LOWER LAMINA IN FACE-TO-FACE CONTACT WITH SAID SURFACE, SAID INTERMEDIATE LAMINA BEING ADAPTED TO LOCALLY EXPAND AND BE COMPRESSED UPON FLEXURE OF THE LOWER LAMINA WHEN THE LATTER CONTACTS LOCAL IRREGULARITIES IN SAID SURFACE; A PLURALITY OF OUTLETS SPACED GENERALLY UNIFORMLY IN THE SURFACE OF SAID FLOOR-LIKE STRUCTURE; A SOURCE OF PRESSURIZED GAS COMMUNICATING WITH SAID OUTLETS; VALVE MEANS NORMALLY CLOSING SAID OUTLETS; AND OPERATING MEANS FOR OPENING SAID VALVES, SAID OPERATING MEANS PROTUDING ABOVE THE SURFACE OF THE FLOOR-LIKE STRUCTURE AND BEING DEPRESSIBLE BY SAID LOWER LAMINA WHEREBY TO EFFECT OPENING OF THE
References Cited (Backward Citations)
US2918183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |