US3185472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding mechanism
Assignee: Fort James Corp
•
Filing: 1962-05-17
•
Granted: 1965-05-25
•
Expires: 1982-05-17
Abstract
No abstract record available.
Inventors
- 👤 La Verne R Rubow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN AUTOMATIC FEEDING DEVICE FOR FEEDING CARTON BLANKS STACKED ONE BEHIND THE OTHER ON A SUPPORTING SURFACE TO A CARTON FORMING SYSTEM, SAID DEVICE COMPRISING A VACUUM WHEEL HAVING VACUUM CUPS FIXEDLY MOUNTED ON THE PERIMETER THEREOF, SAID WHEEL BEING MOUNTED TO ROTATE AND ALSO MOVE TOWARD AND AWAY FROM THE STACK OF CARTON BLANKS SO AS TO MOVE SAID CUPS SUCCESSIVELY INTO CONTACT WITH THE THEN LEADING CARTON BLANKS TO WITHDRAW THE BLANKS ONE AT A TIME FROM THE STACK, MEANS FOR CONTROLLING THE APPLICATION OF A SUCTION TO SAID CUPS; MEANS MOUNTED TO ARREST AND HOLD THE STACK AT TIMED INTERVALS; MEANS FOR SEPARATING THE UPPER PORTION OF THE LEADING BLANK FROM THE REMAINDER OF THE STACK; AND MEANS FOR ROTATING SAID VACUUM WHEEL SO AS TO WITHDRAW THE LEADING BLANK FROM THE REMAINDER OF SAID STACK AND TRANSFER SAID LEADING BLANK TO THE CARTON FORMING SYSTEM.
Claim 2
Dependent Claim
149 words
AN AUTOMATIC FEEDING DEVICE FOR FEEDING CARTON BLANKS STACKED ONE BEHIND THE OTHER ON A SUPPORTING SURFACE TO A CARTON FORMING SYSTEM, SAID DEVICE COMPRISING A VACUUM WHEEL HAVING VACUUM CUPS FIXEDLY MOUNTED ON THE PERIMETER THEREOF, SAID WHEEL BEING MOUNTED TO ROTATE AND ALSO MOVE TOWARD AND AWAY FROM THE STACK OF CARTON BLANKS SO AS TO MOVE SAID CUPS SUCCESSIVELY INTO CONTACT WITH THE THEN LEADING CARTON BLANKS TO WITHDRAW THE BLANKS ONE AT A TIME FROM THE STACK, MEANS FOR CONTROLLING THE APPLICATION OF A SUCTION TO SAID CUPS; MEANS MOUNTED TO ARREST AND HOLD THE STACK AT TIMED INTERVALS; MEANS FOR SEPARATING THE UPPER PORTION OF THE LEADING BLANK FROM THE REMAINDER OF THE STACK; AND MEANS FOR ROTATING SAID VACUUM WHEEL SO AS TO WITHDRAW THE LEADING BLANK FROM THE REMAINDER OF SAID STACK AND TRANSFER SAID LEADING BLANK TO THE CARTON FORMING SYSTEM.
References Cited (Backward Citations)
US1429095A
Cited
US1920001A
Cited
US2161866A
Cited
US2138306A
Cited
US2325774A
Cited
US2714006A
Cited
US2693957A
Cited
US2847213A
Cited
US2918279A
Cited
US2956801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |