Patent US2053830A successfully refreshed from Google Patents.
Patent US3343681A successfully refreshed from Google Patents.
US3343681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rupture proof filter assembly
Assignee: Ametek Inc
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Filing: 1965-11-23
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Granted: 1967-09-26
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Expires: 1985-11-23
Abstract
No abstract record available.
Inventors
- 👤 Madden Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:30
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/14; B01D61/22; B01D25/00; B01D25/22; B01D25/26; B01D63/00; B01D63/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A FLUID FILTER HAVING A FLUID INLET AND A FLUID OUTLET, FILTER ASSEMBLY MEANS FOR FILTERING FLUID FLOWING FROM SAID INLET TO SAID OUTLET, SAID FILTER ASSEMBLY COMPRISING A FILTER MEDIUM, AND BACKING MEANS FOR SUPPORTING SAID FILTER MEDIUM BETWEEN THE INLET AND THE OUTLET INCLUDING A BACKING PLATE HAVING AN AREA GENERALLY COEXTENSIVE WITH SAID FILTER MEDIUM, SAID BACKING PLATE INCLUDING A PLURALITY OF PROJECTIONS EXTENDING FROM SAID BACKING PLATE TOWARD SAID FILTER MEDIUM FORMING GROOVES IN AN AREA BETWEEN SAID FILTER MEDIUM AND SAID BACKING PLATE, SAID PROJECTIONS BEING RELATIVELY CLOSELY SPACED AND RELATIVELY SHALLOW SO THAT, IF THE PRESSURE DIFFERENTIAL ACROSS SAID FILTER MEDIUM BECOMES SUFFICIENTLY GREAT, SAID FILTER MEDIUM WILL NOT BE SELF-SUPPORTING AND WILL ENTER SAID GROOVES TO SUPPORTINGLY SEAT IN SAID GROOVES, SAID FILTER MEDIUM AND SAID BACKING PLATE COACTING TO FULLY SUPPORT SAID FILTER MEDIUM AND PREVENT RUPTURE OF SAID FILTER MEDIUM UPON SEATING IN SAID GROOVES.
Claim 2
Dependent Claim
155 words
IN A FLUID FILTER HAVING A FLUID INLET AND A FLUID OUTLET, FILTER ASSEMBLY MEANS FOR FILTERING FLUID FLOWING FROM SAID INLET TO SAID OUTLET, SAID FILTER ASSEMBLY COMPRISING A FILTER MEDIUM, AND BACKING MEANS FOR SUPPORTING SAID FILTER MEDIUM BETWEEN THE INLET AND THE OUTLET INCLUDING A BACKING PLATE HAVING AN AREA GENERALLY COEXTENSIVE WITH SAID FILTER MEDIUM, SAID BACKING PLATE INCLUDING A PLURALITY OF PROJECTIONS EXTENDING FROM SAID BACKING PLATE TOWARD SAID FILTER MEDIUM FORMING GROOVES IN AN AREA BETWEEN SAID FILTER MEDIUM AND SAID BACKING PLATE, SAID PROJECTIONS BEING RELATIVELY CLOSELY SPACED AND RELATIVELY SHALLOW SO THAT, IF THE PRESSURE DIFFERENTIAL ACROSS SAID FILTER MEDIUM BECOMES SUFFICIENTLY GREAT, SAID FILTER MEDIUM WILL NOT BE SELF-SUPPORTING AND WILL ENTER SAID GROOVES TO SUPPORTINGLY SEAT IN SAID GROOVES, SAID FILTER MEDIUM AND SAID BACKING PLATE COACTING TO FULLY SUPPORT SAID FILTER MEDIUM AND PREVENT RUPTURE OF SAID FILTER MEDIUM UPON SEATING IN SAID GROOVES.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |