Patent US3279976A successfully refreshed from Google Patents.
US3279976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Felt cleaner for paper making machines
Assignee: Sandy Hill Corp
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Filing: 1964-05-18
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Granted: 1966-10-18
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Expires: 1984-05-18
Abstract
No abstract record available.
Inventors
- 👤 Charles E Eagle
- 👤 Martin G Gallup
- 👤 Gilbert B Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:10
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A FELT CONDITIONER FOR A PAPER MACHINE HAVING A TRAVELLING FELT COMPRISING, A PLURALITY OF SPACED PARALLEL AND STATIONARY CONDUITS EXTENDING TRANSVERSELY OF THE FELT, A PLURALITY OF EQUALLY-SPACED SPRAY NOZZLES DEPENDING FROM EACH CONDUIT, THE NOZZLES OF EACH CONDUIT BEING STAGGERED RELATIVE TO THE NOZZLES OF ADJACENT CONDUITS OF FROM SUBSTANTIALLY STRAIGHT PARALLEL ROWS OF NOZZLES EXTENDING AT OBLIQUE ANGLES RELATIVE TO THE AXES OF SAID CONDUITS, HEADER MEANS FOR FEEDING A PRESSURED MIXTURE OF STREAM, WATER AND DETERGENT TO SAID CONDUITS, SOLENOID VALVES BETWEEN SAID HEADER AND EACH SAID CONDUIT, A TIMER CONNECTED TO AND CONTROLLING THE OPERATION OF SAID SOLENOID VALVES, SAID VALUES DELIVERING THE MIXTURE TO SAID CONDUITS IN SERITATIM FOR DISCHARGE THROUGH SAID SPRAY NOZZLES INTO THE TRAVELLING FELT THE STAGGERED ROWS SO THAT A CONTINUOUS SPRAY IN PROVIDED ACROSS THE ENTIRE WIDTH OF THE FELT.
Claim 2
Dependent Claim
141 words
A FELT CONDITIONER FOR A PAPER MACHINE HAVING A TRAVELLING FELT COMPRISING, A PLURALITY OF SPACED PARALLEL AND STATIONARY CONDUITS EXTENDING TRANSVERSELY OF THE FELT, A PLURALITY OF EQUALLY-SPACED SPRAY NOZZLES DEPENDING FROM EACH CONDUIT, THE NOZZLES OF EACH CONDUIT BEING STAGGERED RELATIVE TO THE NOZZLES OF ADJACENT CONDUITS OF FROM SUBSTANTIALLY STRAIGHT PARALLEL ROWS OF NOZZLES EXTENDING AT OBLIQUE ANGLES RELATIVE TO THE AXES OF SAID CONDUITS, HEADER MEANS FOR FEEDING A PRESSURED MIXTURE OF STREAM, WATER AND DETERGENT TO SAID CONDUITS, SOLENOID VALVES BETWEEN SAID HEADER AND EACH SAID CONDUIT, A TIMER CONNECTED TO AND CONTROLLING THE OPERATION OF SAID SOLENOID VALVES, SAID VALUES DELIVERING THE MIXTURE TO SAID CONDUITS IN SERITATIM FOR DISCHARGE THROUGH SAID SPRAY NOZZLES INTO THE TRAVELLING FELT THE STAGGERED ROWS SO THAT A CONTINUOUS SPRAY IN PROVIDED ACROSS THE ENTIRE WIDTH OF THE FELT.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |