Patent US3329273A successfully refreshed from Google Patents.
US3329273A
Expired / Lapsed
US
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Alternatively selected wash and inlet flow for filter system
Assignee: Hpe Inc
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Filing: 1965-01-14
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Granted: 1967-07-04
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Expires: 1985-01-14
Abstract
No abstract record available.
Inventors
- 👤 Rand H Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:52
CPC Classifications
B; B01; B01D; B01D37/00; B01D37/02; B01D25/00; B01D25/30; B01D29/00; B01D29/11; B01D29/114; B01D29/115; B01D29/62; B01D29/64; B01D29/6438; B01D35/00; B01D35/14; B01D35/157; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86509; Y10T137/86517; Y10T137/86533
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A WATER FILTER SYSTEM COMPRISING: A FILTER TANK; A FILTER PLATE IN SAID TANK, SAID PLATE HAVING A FRAME WITH A PERMEABLE COVER, AN OUTLET FROM THE INTERIOR OF SAID PLATE CONNECTED TO THE EXTERIOR OF SAID TANK, AND A REMOVABLE DEPOSIT OF FILTER MEDIA COATING SAID COVER; AN INLET CONDUIT THROUGH THE WALL OF SAID TANK, SAID CONDUIT HAVING AN INLET CHAMBER AND A BIFURCATED OUTLET PORTION, SAID BIFURCATED PORTION HAVING A FIRST PASSAGEWAY LEADING TO AN EXIT PORT DIRECTLY INTO SAID TANK; A NOZZLE MEANS FOR DIRECTING A PLURALITY OF WATER JETS ONTO THE SURFACES OF SAID PLATE, SAID BIFURACTED PORTION HAVING A SECOND PASSAGEWAY LEADING TO SAID NOZZLE MEANS; AND BAFFLE MEANS FOR SELECTIVELY CLOSING ONE OF SAID FIRST OR SECOND PASSAGEWAYS ALTERNATIVELY.
Claim 2
Dependent Claim
126 words
A WATER FILTER SYSTEM COMPRISING: A FILTER TANK; A FILTER PLATE IN SAID TANK, SAID PLATE HAVING A FRAME WITH A PERMEABLE COVER, AN OUTLET FROM THE INTERIOR OF SAID PLATE CONNECTED TO THE EXTERIOR OF SAID TANK, AND A REMOVABLE DEPOSIT OF FILTER MEDIA COATING SAID COVER; AN INLET CONDUIT THROUGH THE WALL OF SAID TANK, SAID CONDUIT HAVING AN INLET CHAMBER AND A BIFURCATED OUTLET PORTION, SAID BIFURCATED PORTION HAVING A FIRST PASSAGEWAY LEADING TO AN EXIT PORT DIRECTLY INTO SAID TANK; A NOZZLE MEANS FOR DIRECTING A PLURALITY OF WATER JETS ONTO THE SURFACES OF SAID PLATE, SAID BIFURACTED PORTION HAVING A SECOND PASSAGEWAY LEADING TO SAID NOZZLE MEANS; AND BAFFLE MEANS FOR SELECTIVELY CLOSING ONE OF SAID FIRST OR SECOND PASSAGEWAYS ALTERNATIVELY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |