US3392838A
Expired / Lapsed
US
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Assignee: AMF Inc
•
Filing: 1966-05-04
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Granted: 1968-07-16
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Expires: 1986-05-04
Abstract
No abstract record available.
Inventors
- 👤 Petrucci Raymond Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:35
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; B01D24/00; B01D24/02; B01D24/10; B01D24/16; B01D24/165; B01D2201/00; B01D2201/30; B01D2201/301; B01D2201/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A FILTER COMPRISING AN ELEMENT AND SUPPORT MEANS THEREFORE, SAID ELEMENT COMPRISING: (A) A PRESSURE RETAINING SHELL FORMING AN OUTER TUBE OPEN AT ONE END AND (B) AN INNER TUBE LOCATED WITHIN SAID OUTER TUBE AND SUBSTANTIALLY PARALLEL THEREWITH AND, (C) A TRANSVERSE WALL EXTENDING RADIALLY FROM ONE END OF SAID OUTER TUBE TO THE PROXIMATE END OF SAID INNER TUBE, (D) THE INTERIOR PASSAGE OF SAID INNER TUBE EXTENDING THROUGH SAID WALL AND BEING CONNECTED BY A PORT WITH THE INTERIOR OF SAID OUTER TUBE, (E) FLUID TREATING MEANS SURROUNDING SAID INNER TUBE AND EXTENDING RADIALLY THEREOF TOTHE INNER WALL OF SAID OUTER TUBE AND EXTENDING AXIALLY OF SAID TUBES FROM ADJACENT SAID PORT TO A POINT ADJACENT THE OPEN END OF SAID OUTER TUBE,
Claim 2
Dependent Claim
126 words
A FILTER COMPRISING AN ELEMENT AND SUPPORT MEANS THEREFORE, SAID ELEMENT COMPRISING: (A) A PRESSURE RETAINING SHELL FORMING AN OUTER TUBE OPEN AT ONE END AND (B) AN INNER TUBE LOCATED WITHIN SAID OUTER TUBE AND SUBSTANTIALLY PARALLEL THEREWITH AND, (C) A TRANSVERSE WALL EXTENDING RADIALLY FROM ONE END OF SAID OUTER TUBE TO THE PROXIMATE END OF SAID INNER TUBE, (D) THE INTERIOR PASSAGE OF SAID INNER TUBE EXTENDING THROUGH SAID WALL AND BEING CONNECTED BY A PORT WITH THE INTERIOR OF SAID OUTER TUBE, (E) FLUID TREATING MEANS SURROUNDING SAID INNER TUBE AND EXTENDING RADIALLY THEREOF TOTHE INNER WALL OF SAID OUTER TUBE AND EXTENDING AXIALLY OF SAID TUBES FROM ADJACENT SAID PORT TO A POINT ADJACENT THE OPEN END OF SAID OUTER TUBE,
References Cited (Backward Citations)
US2661846A
Cited
US2738879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |