US3132097A
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Assignee: Walker Manufacturing Co
•
Filing: 1960-03-28
•
Granted: 1964-05-05
•
Expires: 1980-03-28
Abstract
No abstract record available.
Inventors
- 👤 La Vern R Tietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:46
CPC Classifications
B; B01; B01D; B01D27/00; B01D27/02; B01D27/08; B01D27/10; B01D27/103; B01D27/106; B01D2201/00; B01D2201/04; B01D2201/0461; Y; Y10; Y10S; Y10S210/00; Y10S210/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN A FILTER ELEMENT, A HOUSING, A FILTER BODY IN THE HOUSING, A PLATE CLOSING ONE END OF THEHOUSING AND HAVING A CENTRALLY LOCATED OUTLET OPENING AND FIRST AND SECOND INLET MEANS SPACED RADIALLY OUTWARDLY AT DIFFERENT DISTANCES RESPECTIVELY FROM SAID OUTLET OPENING, A TUBULAR MEMBER HAVING ONE END ENCLOSING THE FIRST INLET MEANS AND THE OUTLET OPENING AND THE OTHER END ENGAGING AND SPACING THE FILTER BODY FROM THE PLATE AND SERVING AS MEANS TO SUPPORT THE BODY ON THE PLATE, A VALVE SLIDABLY SUPPORTED INSIDE SAID TUBULAR MEMBER AND CONTROLLING FLOW THROUGH THE FIRST OF SAID INLET MEANS AND INTO THE TUBULAR MEMBER AND THUS TO SAID OUTLET OPENING TO BY-PASS SAID FILTER BODY, RESILIENT MEANS INSIDE THE TUBULAR MEMBER CONTROLLING THE OPENING PRESSURE OF THE VALVE, AND A CHECK VALVE ASSOCIATED WITH SAID SECOND OF SAID INLET MEANS AND MOUNTED ON THE PLATE AND ACTING TO PREVENT BACK-FLOW OF FLUID THROUGH THE SECOND INLET MEANS, SAID CHECK VALVE MEANS BEING HELD IN POSITION ON SAID PLATE BY SAID TUBULAR MEMBER.
Claim 2
Dependent Claim
173 words
IN A FILTER ELEMENT, A HOUSING, A FILTER BODY IN THE HOUSING, A PLATE CLOSING ONE END OF THEHOUSING AND HAVING A CENTRALLY LOCATED OUTLET OPENING AND FIRST AND SECOND INLET MEANS SPACED RADIALLY OUTWARDLY AT DIFFERENT DISTANCES RESPECTIVELY FROM SAID OUTLET OPENING, A TUBULAR MEMBER HAVING ONE END ENCLOSING THE FIRST INLET MEANS AND THE OUTLET OPENING AND THE OTHER END ENGAGING AND SPACING THE FILTER BODY FROM THE PLATE AND SERVING AS MEANS TO SUPPORT THE BODY ON THE PLATE, A VALVE SLIDABLY SUPPORTED INSIDE SAID TUBULAR MEMBER AND CONTROLLING FLOW THROUGH THE FIRST OF SAID INLET MEANS AND INTO THE TUBULAR MEMBER AND THUS TO SAID OUTLET OPENING TO BY-PASS SAID FILTER BODY, RESILIENT MEANS INSIDE THE TUBULAR MEMBER CONTROLLING THE OPENING PRESSURE OF THE VALVE, AND A CHECK VALVE ASSOCIATED WITH SAID SECOND OF SAID INLET MEANS AND MOUNTED ON THE PLATE AND ACTING TO PREVENT BACK-FLOW OF FLUID THROUGH THE SECOND INLET MEANS, SAID CHECK VALVE MEANS BEING HELD IN POSITION ON SAID PLATE BY SAID TUBULAR MEMBER.
References Cited (Backward Citations)
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US2311320A
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US2598322A
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US2877902A
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US2888141A
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US2995249A
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |