US3327832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable cell conveyor
Assignee: Armstrong World Industries Inc
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Filing: 1966-06-28
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Granted: 1967-06-27
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Expires: 1986-06-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Kyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:24
CPC Classifications
B; B65; B65G; B65G35/00; B65G35/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN EXPANDABLE CELL CONVEYOR COMPRISING: (A) A PLURALITY OF INFLATABLE EXPANDABLE CELLS POSITIONED IN TWO LAYERS SO THAT EACH CELL OF A TOP LAYER PARTIALLY OVERLAPS TWO CELLS OF A LOWER LAYER, (B) MEANS FOR SELECTIVELY INFLATING AT LEAST TWO ADJACENT CELLS, ONE OF EACH LAYER, AND SELECTIVELY DEFLATING AT LEAST TWO OTHER CELLS, ONE OF EACH LAYER, AND (C) MEANS FOR SHIFTING THE SELECTIVE INFLATION MEANS TO SERIALLY INFLATE ONE CELL OF ONE LAYER ADJACENT THE TWO CELLS FIRST INFLATED WHILE DEFLATING THE NEXT ADJACENT AND PREVIOUSLY INFLATED CELL OF THE SAME LAYER AS THE NEWLY INFLATED CELL.
Claim 2
Dependent Claim
99 words
AN EXPANDABLE CELL CONVEYOR COMPRISING: (A) A PLURALITY OF INFLATABLE EXPANDABLE CELLS POSITIONED IN TWO LAYERS SO THAT EACH CELL OF A TOP LAYER PARTIALLY OVERLAPS TWO CELLS OF A LOWER LAYER, (B) MEANS FOR SELECTIVELY INFLATING AT LEAST TWO ADJACENT CELLS, ONE OF EACH LAYER, AND SELECTIVELY DEFLATING AT LEAST TWO OTHER CELLS, ONE OF EACH LAYER, AND (C) MEANS FOR SHIFTING THE SELECTIVE INFLATION MEANS TO SERIALLY INFLATE ONE CELL OF ONE LAYER ADJACENT THE TWO CELLS FIRST INFLATED WHILE DEFLATING THE NEXT ADJACENT AND PREVIOUSLY INFLATED CELL OF THE SAME LAYER AS THE NEWLY INFLATED CELL.
References Cited (Backward Citations)
GB1032637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |