Patent US1824153A successfully refreshed from Google Patents.
Patent US3344922A successfully refreshed from Google Patents.
US3344922A
Expired / Lapsed
US
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Apparatus for use in filtering fluids
Assignee: Sparkler Manufacturing Co
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Filing: 1964-05-11
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Granted: 1967-10-03
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Expires: 1984-05-11
Abstract
No abstract record available.
Inventors
- 👤 Kracklauer Aloysius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:57
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/62; B01D29/70; B01D29/72; B01D29/39; B01D29/41; B01D29/66; B01D2201/00; B01D2201/26; B01D2201/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD FOR CLEANING FILTER PLATES HAVING CAKES THEREON AND DISPOSED IN A PARALLEL RELATIONSHIP IN A FILTERING APPARATUS, WHICH METHOD COMPRISES PASSING A CAKECUTTING SPRAY FROM A FIRST NOZZLE OVER SAID CAKES TO CUT SAID CAKES ONLY ALONG SUBSTANTIALLY A CENTRAL PLANE PERPENDICULAR TO SAID PARALLEL RELATIONSHIP, AND FOLLOWING SAID CAKE-CUTTING SPRAY WITH A WASHING SPRAY FROM A PLURALITY OF OTHER NOZZLE OVER SUBSTANTIALLY THE FULL FACES OF SAID PLATES.
Claim 2
Independent Claim
71 words
A METHOD FOR CLEANING FILTER PLATES HAVING CAKES THEREON AND DISPOSED IN A PARALLEL RELATIONSHIP IN A FILTERING APPARATUS, WHICH METHOD COMPRISES PASSING A CAKECUTTING SPRAY FROM A FIRST NOZZLE OVER SAID CAKES TO CUT SAID CAKES ONLY ALONG SUBSTANTIALLY A CENTRAL PLANE PERPENDICULAR TO SAID PARALLEL RELATIONSHIP, AND FOLLOWING SAID CAKE-CUTTING SPRAY WITH A WASHING SPRAY FROM A PLURALITY OF OTHER NOZZLE OVER SUBSTANTIALLY THE FULL FACES OF SAID PLATES.
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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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |