Patent US2715860A successfully refreshed from Google Patents.
US2715860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulp cleaner
Assignee: LEWIS C WALTER
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Filing: 1954-07-02
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Granted: 1955-08-23
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Expires: 1974-07-02
Abstract
No abstract record available.
Inventors
- 👤 Theodore M Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:58
CPC Classifications
D; D21; D21D; D21D5/00; D21D5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PULP CLEANER COMPRISING AN EJECTOR ASSEMBLY INCLUDING A VERTICALLY DISPOSED ELONGATED NOZZLE MEMBER HAVING A VERTICALLY DISPOSED SLOTTED OPENING ADAPTED TO ISSUE A VERTICAL SHEET-LIKE STREAM OF PULP FIBER AND WATER MIXTURE INTO THE ATMOSPHERE, MEANS DISPOSED BELOW SAID EJECTOR ASSEMBLY AND EXTENDING THEREBEYOND FOR RECEIVING DIRT AND FOREIGN MATTER SEPARATED FROM THE SHEET-LIKE STREAM OF PULP FIBER AND WATER, AND A CLEAN PULP FIBER RECEIVER SPACED DOWNSTREAM FROM SAID NOZZLE MEMBER, SAID RECEIVER HAVING A VERTICALLY DISPOSED ELONGATED SLOT THEREIN OPENING TO THE ATMOSPHERE IN ALIGNMENT WITH THE VERTICALLY DISPOSED SLOTTED OPENING IN SAID NOZZLE MEMBER FOR RECEIVING THE SHEET-LIKE STREAM OF PULP FIBER AND WATER MIXTURE.
Claim 2
Dependent Claim
109 words
A PULP CLEANER COMPRISING AN EJECTOR ASSEMBLY INCLUDING A VERTICALLY DISPOSED ELONGATED NOZZLE MEMBER HAVING A VERTICALLY DISPOSED SLOTTED OPENING ADAPTED TO ISSUE A VERTICAL SHEET-LIKE STREAM OF PULP FIBER AND WATER MIXTURE INTO THE ATMOSPHERE, MEANS DISPOSED BELOW SAID EJECTOR ASSEMBLY AND EXTENDING THEREBEYOND FOR RECEIVING DIRT AND FOREIGN MATTER SEPARATED FROM THE SHEET-LIKE STREAM OF PULP FIBER AND WATER, AND A CLEAN PULP FIBER RECEIVER SPACED DOWNSTREAM FROM SAID NOZZLE MEMBER, SAID RECEIVER HAVING A VERTICALLY DISPOSED ELONGATED SLOT THEREIN OPENING TO THE ATMOSPHERE IN ALIGNMENT WITH THE VERTICALLY DISPOSED SLOTTED OPENING IN SAID NOZZLE MEMBER FOR RECEIVING THE SHEET-LIKE STREAM OF PULP FIBER AND WATER MIXTURE.
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) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |