Patent US3198693A successfully refreshed from Google Patents.
US3198693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scavenging means for grooved press rolls
Assignee: Beloit Corp
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Filing: 1964-08-21
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Granted: 1965-08-03
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Expires: 1984-08-21
Abstract
No abstract record available.
Inventors
- 👤 Edgar J Justus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:51
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/04; D21F3/0272
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
A DEVICE FOR CLEANING A CONTINUOUSLY ROTATING GENERALLY CYLINDRICAL PRESS ROLL SHELL HAVING A PERIPHERAL SURFACE PORTION PRESENTING ALTERNATING GENERALLY CIRCUMFERENTIALLY ALIGNED GROOVES AND RIDGES, SAID GROOVES DEFINING A CONTINUOUS SPIRAL ON THE PERIPHERY OF SAID ROLL, SAID DEVICE COMPRISING MEANS ADAPTED TO PRESENT TO SAID RIDGES A GENERALLY AXIALLY CONTINUOUS EDGE AND CHASER MEANS FOR SLIDABLY ENGAGING SAID EDGE FOR RELATIVE AXIAL MOVEMENT CARRYING A PLURALITY OF SPACED PERIPERALLY ALIGNED GUIDE MEANS SLIDABLY RECEIVABLE IN CLOSELY ADJACENT GROOVES ON THE ROLL PERIPHERY.
Claim 2
Independent Claim
83 words
A DEVICE FOR CLEANING A CONTINUOUSLY ROTATING GENERALLY CYLINDRICAL PRESS ROLL SHELL HAVING A PERIPHERAL SURFACE PORTION PRESENTING ALTERNATING GENERALLY CIRCUMFERENTIALLY ALIGNED GROOVES AND RIDGES, SAID GROOVES DEFINING A CONTINUOUS SPIRAL ON THE PERIPHERY OF SAID ROLL, SAID DEVICE COMPRISING MEANS ADAPTED TO PRESENT TO SAID RIDGES A GENERALLY AXIALLY CONTINUOUS EDGE AND CHASER MEANS FOR SLIDABLY ENGAGING SAID EDGE FOR RELATIVE AXIAL MOVEMENT CARRYING A PLURALITY OF SPACED PERIPERALLY ALIGNED GUIDE MEANS SLIDABLY RECEIVABLE IN CLOSELY ADJACENT GROOVES ON THE ROLL PERIPHERY.
Claim 3
Dependent Claim
168 words
IN COMBINATION, A GENERALLY CYCLINDRICAL PRESS ROLL SHELL ADAPTED TO BE MOUNTED FOR ROTATION ABOUT ITS CENTROIDAL AXIS AND TO PRESS A PERIPHERAL ROTARY SURFACE PORTION THEREOF AGAINST A LIQUID-CONTAINING WEB MATERIAL; SAID SURFACE PORTION HAVING ALTERNATING GENERALLY CIRCUMFERENTIALLY ALIGNED GROOVES AND RIDGES; SAID GROOVES HAVING A NARROW AXIAL DIMENSION AT THE ROLL PERIPHERY FOR RECEIVING LIQUID PRESSED FROM THE WEB MATERIAL AND TENDING TO RETAIN SUCH LIQUID, BEING VENTED TO AMBIENT ATMOSPHERE AT BOTH OFF-RUNNING AND ON-COMING SIDES OF AN AXIAL LINE OF CONTACT BETWEEN THE ROLL SHELL PERIPHERY AND THE LIQUID-CONTAINING WEB MATERIAL FROM WHICH LIQUID IS PRESSED INTO SUCH GROOVES, AND BEING INTERPOSED BETWEEN LANDS ON SAID RIDGES AVERAGING IN AXIAL WIDTH SUBSTANTIALLY AT LEAST TWICE THE AXIAL WIDTHS OF SAID GROOVES, AND WIPER MEANS HAVING AN AXIALLY CONTINUOUS SURFACE PORTION EXTENDING FROM CLOSE PROXIMITY TO SAID ROLL PERIPHERAL SURFACE PORTION GRADUALLY AWAY FROM SUCH ROLL SURFACE IN THE DIRECTION OF ROLL ROTATION FOR PUMPING LIQUID OUT OF THE GROOVES MOVING PAST THE WIPER MEANS.
Claim 4
Dependent Claim
168 words
IN COMBINATION, A GENERALLY CYCLINDRICAL PRESS ROLL SHELL ADAPTED TO BE MOUNTED FOR ROTATION ABOUT ITS CENTROIDAL AXIS AND TO PRESS A PERIPHERAL ROTARY SURFACE PORTION THEREOF AGAINST A LIQUID-CONTAINING WEB MATERIAL; SAID SURFACE PORTION HAVING ALTERNATING GENERALLY CIRCUMFERENTIALLY ALIGNED GROOVES AND RIDGES; SAID GROOVES HAVING A NARROW AXIAL DIMENSION AT THE ROLL PERIPHERY FOR RECEIVING LIQUID PRESSED FROM THE WEB MATERIAL AND TENDING TO RETAIN SUCH LIQUID, BEING VENTED TO AMBIENT ATMOSPHERE AT BOTH OFF-RUNNING AND ON-COMING SIDES OF AN AXIAL LINE OF CONTACT BETWEEN THE ROLL SHELL PERIPHERY AND THE LIQUID-CONTAINING WEB MATERIAL FROM WHICH LIQUID IS PRESSED INTO SUCH GROOVES, AND BEING INTERPOSED BETWEEN LANDS ON SAID RIDGES AVERAGING IN AXIAL WIDTH SUBSTANTIALLY AT LEAST TWICE THE AXIAL WIDTHS OF SAID GROOVES, AND WIPER MEANS HAVING AN AXIALLY CONTINUOUS SURFACE PORTION EXTENDING FROM CLOSE PROXIMITY TO SAID ROLL PERIPHERAL SURFACE PORTION GRADUALLY AWAY FROM SUCH ROLL SURFACE IN THE DIRECTION OF ROLL ROTATION FOR PUMPING LIQUID OUT OF THE GROOVES MOVING PAST THE WIPER MEANS.
References Cited (Backward Citations)
US2858707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |