US3206178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffuser tube
Assignee: FMC Corp
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Filing: 1960-11-16
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Granted: 1965-09-14
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Expires: 1980-11-16
Abstract
No abstract record available.
Inventors
- 👤 Miles A Lamb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:02
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23124; B01J; B01J4/00; B01J4/04; C02F3/201; C12; C12M; C12M29/00; C12M29/06; B01F23/231245; B01F23/23126; B01F23/231265; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S261/00; Y10S261/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
366 words
A DIFFUSER TUBE COMPRISING A RIGID INNER MEMBER AND A FLEXIBLE, COLLAPSIBLE, POROUS, OUTER TUBULAR MEMBER, SAID INNER MEMBER HAVING ENDS OF APPROXIMATELY THE SAME PERIMETER, MEANS SECURING ONE END OF SAID OUTER MEMBER TO SAID INNER MEMBER ADJACENT ONE END THEREOF, MEANS PROVIDING A CLOSURE FOR THE OTHER END OF SAID OUTER MEMBER, SAID OUTER MEMBER COMPLETELY ENCLOSING THE PORTION OF SAID INNER MEMBER BETWEEN SAID ENDS, AND AN INLET FOR AN AERIFORM BODY EXTENDING THROUGH ONE END OF SAID INNER MEMBER WHEREBY SAID OUTER MEMBER MAY BE INFLATED, THE CROSS SECTIONAL AREA OF THE PORTION OF SAID INNER MEMBER BETWEEN SAID ENDS BEING REDUCED ALONG SUBSTANTIALLY ITS ENTIRE LENGTH, RELATIVE TO THE CROSS SECTIONAL AREA AT ITS ENDS, TO FORM AN AIR CHAMBER BETWEEN SAID INNER AND OUTER MEMBERS, SAID AIR CHAMBER COMMUNICATING WITH SAID INLET, SAID OUTER MEMBER HAVING A SUBSTANTIALLY UNIFORM CROSS SECTION THROUGHOUT ITS LENGTH WHEN INFLATED, WHEREBY A PORTION OF SAID INFLATED OUTER MEMBER IS SPACED FROM THE SURFACE OF THE INNER MEMBER ALONG SUBSTANTIALLY ITS ENTIRE LENGTH, THE CROSS SECTIONAL AREA OF SAID OUTER MEMBER WHEN INFLATED BEING SUBSTANTIALLY EQUAL TO THE CROSS SECTIONAL AREA OF THE END OF SAID INNER MEMBER ADJACENT SAID INLET, THE ENTIRE PORTION OF THE OUTER MEMBER SPACED FROM THE SURFACE OF SAID INNER MEMBER BEING UNRESTRAINED AS TO MOVEMENT TOWARD SAID INNER MEMBER, THE OUTER SURFACE OF THE INNER MEMBER THROUGHOUT THE AREA OF REDUCED CROSS SECTION BEING LOCATED WITHIN THE RANGE OF MOVEMENT OF SAID OUTER MEMBER, THE PORTION OF SAID OUTER MEMBER SPACED FROM THE SURFACE OF SAID INNER MEMBER HAVING A SURFACE FROM THE SLIGHTLY LARGER THAN THE SURFACE AREA OF THE PORTION OF THE INNER MEMBER COEXTENSIVE THEREWITH, THE DIFFERENCE BETWEEN THE SURFACE AREAS OF COEXTENSIVE PORTIONS OF SAID OUTER AND INNER MEMBERS BEING SUCH THAT THE ENTIRE PORTION OF THE OUTER MEMBER COEXTENSIVE WITH THE SURFACE AREA OF THE BOTTOM OF THE AIR CHAMBER WILL STRIKE AGAINST THE SURFACE OF SAID INNER MEMBER IN A CONDITION WHEREIN NO PORTION OF THE MATERIAL OF THE OUTER MEMBER IS FOLDED OVER UPON ITSELF WHEN THE OUTER MEMBER IS DEFLATED RAPIDLY, TO DISLODGE SOLID FOREIGN MATTER ACCUMULATED ON ITS OUTER SURFACE.
Claim 2
Dependent Claim
366 words
A DIFFUSER TUBE COMPRISING A RIGID INNER MEMBER AND A FLEXIBLE, COLLAPSIBLE, POROUS, OUTER TUBULAR MEMBER, SAID INNER MEMBER HAVING ENDS OF APPROXIMATELY THE SAME PERIMETER, MEANS SECURING ONE END OF SAID OUTER MEMBER TO SAID INNER MEMBER ADJACENT ONE END THEREOF, MEANS PROVIDING A CLOSURE FOR THE OTHER END OF SAID OUTER MEMBER, SAID OUTER MEMBER COMPLETELY ENCLOSING THE PORTION OF SAID INNER MEMBER BETWEEN SAID ENDS, AND AN INLET FOR AN AERIFORM BODY EXTENDING THROUGH ONE END OF SAID INNER MEMBER WHEREBY SAID OUTER MEMBER MAY BE INFLATED, THE CROSS SECTIONAL AREA OF THE PORTION OF SAID INNER MEMBER BETWEEN SAID ENDS BEING REDUCED ALONG SUBSTANTIALLY ITS ENTIRE LENGTH, RELATIVE TO THE CROSS SECTIONAL AREA AT ITS ENDS, TO FORM AN AIR CHAMBER BETWEEN SAID INNER AND OUTER MEMBERS, SAID AIR CHAMBER COMMUNICATING WITH SAID INLET, SAID OUTER MEMBER HAVING A SUBSTANTIALLY UNIFORM CROSS SECTION THROUGHOUT ITS LENGTH WHEN INFLATED, WHEREBY A PORTION OF SAID INFLATED OUTER MEMBER IS SPACED FROM THE SURFACE OF THE INNER MEMBER ALONG SUBSTANTIALLY ITS ENTIRE LENGTH, THE CROSS SECTIONAL AREA OF SAID OUTER MEMBER WHEN INFLATED BEING SUBSTANTIALLY EQUAL TO THE CROSS SECTIONAL AREA OF THE END OF SAID INNER MEMBER ADJACENT SAID INLET, THE ENTIRE PORTION OF THE OUTER MEMBER SPACED FROM THE SURFACE OF SAID INNER MEMBER BEING UNRESTRAINED AS TO MOVEMENT TOWARD SAID INNER MEMBER, THE OUTER SURFACE OF THE INNER MEMBER THROUGHOUT THE AREA OF REDUCED CROSS SECTION BEING LOCATED WITHIN THE RANGE OF MOVEMENT OF SAID OUTER MEMBER, THE PORTION OF SAID OUTER MEMBER SPACED FROM THE SURFACE OF SAID INNER MEMBER HAVING A SURFACE FROM THE SLIGHTLY LARGER THAN THE SURFACE AREA OF THE PORTION OF THE INNER MEMBER COEXTENSIVE THEREWITH, THE DIFFERENCE BETWEEN THE SURFACE AREAS OF COEXTENSIVE PORTIONS OF SAID OUTER AND INNER MEMBERS BEING SUCH THAT THE ENTIRE PORTION OF THE OUTER MEMBER COEXTENSIVE WITH THE SURFACE AREA OF THE BOTTOM OF THE AIR CHAMBER WILL STRIKE AGAINST THE SURFACE OF SAID INNER MEMBER IN A CONDITION WHEREIN NO PORTION OF THE MATERIAL OF THE OUTER MEMBER IS FOLDED OVER UPON ITSELF WHEN THE OUTER MEMBER IS DEFLATED RAPIDLY, TO DISLODGE SOLID FOREIGN MATTER ACCUMULATED ON ITS OUTER SURFACE.
References Cited (Backward Citations)
US1599561A
Cited
US1717713A
Cited
US1798452A
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US1849146A
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US2502187A
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US2947525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |