US3254467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for pressing fibrous materials having entrained fluids
Assignee: Commonwealth Scientific and Industrial Research Organisation
•
Filing: 1962-04-06
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Granted: 1966-06-07
•
Expires: 1982-04-06
Abstract
No abstract record available.
Inventors
- 👤 Garrow Clyde
- 👤 Flanagan George Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:19
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/20; B65B1/26; B30; B30B; B30B9/00; B30B9/30; B30B9/3082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A METHOD OF PRESSING AND BALING FIBROUS MATERIALS HAVING ENTRAINED FLUIDS WHICH COMPRISES THE STEPS OF FEEDING THE MATERIAL TO BE PRESSED INTO A FLEXIBLE CONTAINER WHICH IS SUBSTANTIALLY FLUID TIGHT AND WHICH IS CAPABLE OF REDUCTION IN VOLUME, EVACUATING FLUID FROM THE CONTAINER AND PERMITTING THE CONTAINER TO REDUCE ITS VOLUME UNDER THE INFLUENCE OF ATMOSPHERIC PRESSURE AND THEREBY TO COMPRESS THE MATERIAL, ENCLOSING THE CONTAINER AND ITS ENCLOSED MATERIAL IN A RESTRAINING ENVELOPE OF GREATER SIZE THAN THE CONTAINER WITH THE COMPRESSED MATERIAL THEREIN, AND THEN READMITTING AIR TO THE CONTAINER WHILE THE LATTER REMAINS ENCLOSED IN SAID ENVELOPE SO AS TO PERMIT THE MATERIAL TO EXPAND AGAINST AND ASSUME THE SHAPE AND SIZE OF SAID RESTRAINING ENVELOPE.
Claim 2
Independent Claim
120 words
A METHOD OF PRESSING AND BALING FIBROUS MATERIALS HAVING ENTRAINED FLUIDS WHICH COMPRISES THE STEPS OF FEEDING THE MATERIAL TO BE PRESSED INTO A FLEXIBLE CONTAINER WHICH IS SUBSTANTIALLY FLUID TIGHT AND WHICH IS CAPABLE OF REDUCTION IN VOLUME, EVACUATING FLUID FROM THE CONTAINER AND PERMITTING THE CONTAINER TO REDUCE ITS VOLUME UNDER THE INFLUENCE OF ATMOSPHERIC PRESSURE AND THEREBY TO COMPRESS THE MATERIAL, ENCLOSING THE CONTAINER AND ITS ENCLOSED MATERIAL IN A RESTRAINING ENVELOPE OF GREATER SIZE THAN THE CONTAINER WITH THE COMPRESSED MATERIAL THEREIN, AND THEN READMITTING AIR TO THE CONTAINER WHILE THE LATTER REMAINS ENCLOSED IN SAID ENVELOPE SO AS TO PERMIT THE MATERIAL TO EXPAND AGAINST AND ASSUME THE SHAPE AND SIZE OF SAID RESTRAINING ENVELOPE.
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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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |