US3074086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing dust from paper webs
Assignee: Tribune Co
•
Filing: 1959-02-04
•
Granted: 1963-01-22
•
Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 Robert K Remer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:42
CPC Classifications
B; B41; B41F; B41F23/00; B41F23/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN APPARATUS FOR REMOVING THE LINT AND DUST FROM A MOVING PAPER WEB COMPRISING: A PAIR OF ROLLERS MADE OF DISSIMILAR MATERIALS CHOSEN FROM A TRIBOELECTRIC SERIES, SAID ROLLERS BEING ROTATABLY MOUNTED ON PARALLEL AXES SO AS TO BE IN CONTACT WITH EACH OTHER IN SUCH MANNER THAT ROTATION OF ONE OF SAID ROLLERS WILL EFFECT ROTATION OF THE OTHER; MEANS FOR ROTATING ONE OF SAID ROLLERS SO AS TO PRODUCE ROLLING CONTACT BETWEEN SAID ROLLERS AND THUS PRODUCE ELECTROSTATIC CHARGES ON ONE OF SAID ROLLERS; AND MEANS FOR BRINGING A PAPER WEB INTO INTIMATE CONTACT WITH THAT ROLLER IN THE PAIR WHICH HAS BEEN POSITIVELY CHARGED DUE TO SAID ROLLING CONTACT WHEREBY ANY LINT AND DUST ADHERING TO SAID
Claim 2
Independent Claim
120 words
AN APPARATUS FOR REMOVING THE LINT AND DUST FROM A MOVING PAPER WEB COMPRISING: A PAIR OF ROLLERS MADE OF DISSIMILAR MATERIALS CHOSEN FROM A TRIBOELECTRIC SERIES, SAID ROLLERS BEING ROTATABLY MOUNTED ON PARALLEL AXES SO AS TO BE IN CONTACT WITH EACH OTHER IN SUCH MANNER THAT ROTATION OF ONE OF SAID ROLLERS WILL EFFECT ROTATION OF THE OTHER; MEANS FOR ROTATING ONE OF SAID ROLLERS SO AS TO PRODUCE ROLLING CONTACT BETWEEN SAID ROLLERS AND THUS PRODUCE ELECTROSTATIC CHARGES ON ONE OF SAID ROLLERS; AND MEANS FOR BRINGING A PAPER WEB INTO INTIMATE CONTACT WITH THAT ROLLER IN THE PAIR WHICH HAS BEEN POSITIVELY CHARGED DUE TO SAID ROLLING CONTACT WHEREBY ANY LINT AND DUST ADHERING TO SAID
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |