Patent US3244458A successfully refreshed from Google Patents.
US3244458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable endless belt and support therefor
Assignee: Individual
•
Filing: 1964-01-21
•
Granted: 1966-04-05
•
Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 Frost James Dahle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:44
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/06; B62D55/07; B62D55/065; B62D55/08; B62D55/18; B62D55/24; B62D55/247; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
AN ENDLESS BELT AND SUPPORT THEREFOR COMPRISING A PAIR OF SPACED ELEMENTS AFFORDING RESPECTIVE AXES OF ROTATION; MEANS INDIVIDUALLY ROTATABLY MOUNTING SAID ELEMENTS WITH SAID AXES IN SUBTANTIALLY PARALLEL ALIGNMENT; AN ENDLESS BELT TRAINED ABOUT SAID ELEMENTS FOR CIRCUITOUS MOVEMENT THEREAROUND, THE BELT HAVING SPACED OPPOSED INNER AND OUTER WALLS AND PREDETERMINED UPPER AND LOWER RUNS; A PAIR OF SPACED SIDE PLATES INTERCONNECTING THE UPPER AND LOWER RUNS OF THE BELT AND SAID ELEMENTS AND THEREWITH DEFINING A CHAMBER; MEANS ADAPTED TO SUPPLY A PRESSURE FLUID TO SAID CHAMBER AT A PREDETERMINED INLET FLOW RATE, SAID CHAMBER HAVING AN EXHAUST VALVE OPENING PERMITTING CONTINUOUS ESCAPE OF SAID PRESSURE FLUID AT A RATE PROPORTIONED TO SAID INLET FLOW RATE SO THAT FLUID AT A A POSITIVE PRESSURE IS MAINTAINED WITHIN SAID CHAMBER AND EXCESSIVE PRESSURES DISSIPATED BY EXHAUST THROUGH THE OPENING; AND POWER MEANS DRIVINGLY CONNECTED TO ONE OF SAID SPACED ELEMENTS TO ROTATE THE SAME AND MOTIVATE THE BELT IN A CIRCUITOUS PATH ABOUT SAID ELEMENTS.
Claim 2
Dependent Claim
166 words
AN ENDLESS BELT AND SUPPORT THEREFOR COMPRISING A PAIR OF SPACED ELEMENTS AFFORDING RESPECTIVE AXES OF ROTATION; MEANS INDIVIDUALLY ROTATABLY MOUNTING SAID ELEMENTS WITH SAID AXES IN SUBTANTIALLY PARALLEL ALIGNMENT; AN ENDLESS BELT TRAINED ABOUT SAID ELEMENTS FOR CIRCUITOUS MOVEMENT THEREAROUND, THE BELT HAVING SPACED OPPOSED INNER AND OUTER WALLS AND PREDETERMINED UPPER AND LOWER RUNS; A PAIR OF SPACED SIDE PLATES INTERCONNECTING THE UPPER AND LOWER RUNS OF THE BELT AND SAID ELEMENTS AND THEREWITH DEFINING A CHAMBER; MEANS ADAPTED TO SUPPLY A PRESSURE FLUID TO SAID CHAMBER AT A PREDETERMINED INLET FLOW RATE, SAID CHAMBER HAVING AN EXHAUST VALVE OPENING PERMITTING CONTINUOUS ESCAPE OF SAID PRESSURE FLUID AT A RATE PROPORTIONED TO SAID INLET FLOW RATE SO THAT FLUID AT A A POSITIVE PRESSURE IS MAINTAINED WITHIN SAID CHAMBER AND EXCESSIVE PRESSURES DISSIPATED BY EXHAUST THROUGH THE OPENING; AND POWER MEANS DRIVINGLY CONNECTED TO ONE OF SAID SPACED ELEMENTS TO ROTATE THE SAME AND MOTIVATE THE BELT IN A CIRCUITOUS PATH ABOUT SAID ELEMENTS.
References Cited (Backward Citations)
US2416183A
Cited
US2900210A
Cited
US3074764A
Cited
US3095938A
Cited
US3168069A
Cited
US3170533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |