Patent US3217646A successfully refreshed from Google Patents.
US3217646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for removing dusting powder or loose particles from sheets or webs
Assignee: Individual
•
Filing: 1962-08-08
•
Granted: 1965-11-16
•
Expires: 1982-08-08
Abstract
No abstract record available.
Inventors
- 👤 Richard E Sharkey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:56
CPC Classifications
B; B41; B41F; B41F23/00; B41F23/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A SUCTIONSLESS MECHANISM FOR REMOVING DUSTING POWDER FROM PRINTED SHEETS UNDER MOVEMENT IN A PRINTING PRESS AND PRIOR TO REPRINTING THEREOF, INCLUDING A GENERALLY CYLINDRICAL BRUSH, MEANS FOR ROTATABLY SUPPORING THE BRUSH IN CONTACT WITH THE SHEETS, MEANS FOR ROTATING THE BRUSH AT A SPEED SUFFICIENT TO CREATE A CIRCUMFERENTIAL FLOW OF AIR ABOUT THE PERIPHERY OF THE BRUSH TO PICK UP AND CONVEY THE DUSTING POWER, A HOUSING DISPOSED ABOVE AND COEXTENSIVE WITH AND COMPLETELY EXTERIORLY OF THE BRUSH AND HAVING FRONT AND REAR WALL PORTIONS RELATIVELY TO THE DIRECTION OF ROTATION OF THE BRUSH AND A TOP AND END PORTIONS PROVIDING AN OPEN BOTTOM DUCT ALONG THE LENGTH OF THE BRUSH,
Claim 2
Dependent Claim
113 words
A SUCTIONSLESS MECHANISM FOR REMOVING DUSTING POWDER FROM PRINTED SHEETS UNDER MOVEMENT IN A PRINTING PRESS AND PRIOR TO REPRINTING THEREOF, INCLUDING A GENERALLY CYLINDRICAL BRUSH, MEANS FOR ROTATABLY SUPPORING THE BRUSH IN CONTACT WITH THE SHEETS, MEANS FOR ROTATING THE BRUSH AT A SPEED SUFFICIENT TO CREATE A CIRCUMFERENTIAL FLOW OF AIR ABOUT THE PERIPHERY OF THE BRUSH TO PICK UP AND CONVEY THE DUSTING POWER, A HOUSING DISPOSED ABOVE AND COEXTENSIVE WITH AND COMPLETELY EXTERIORLY OF THE BRUSH AND HAVING FRONT AND REAR WALL PORTIONS RELATIVELY TO THE DIRECTION OF ROTATION OF THE BRUSH AND A TOP AND END PORTIONS PROVIDING AN OPEN BOTTOM DUCT ALONG THE LENGTH OF THE BRUSH,
References Cited (Backward Citations)
US188670A
Cited
US437863A
Cited
US539268A
Cited
US1043812A
Cited
US1089453A
Cited
US1428931A
Cited
US2384599A
Cited
US2482781A
Cited
US2918691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |