US3171647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction feed mechanism for cardboard and like blanks
Assignee: Deritend Engineering Co Ltd
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Filing: 1962-09-05
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Granted: 1965-03-02
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Expires: 1982-09-05
Abstract
No abstract record available.
Inventors
- 👤 Bishop Thomas Desmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:10
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/12; B65H3/124; B65H3/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
FEEDING MECHANISM FOR CARDBOARD BLANKS COMPRISING, IN COMBINATION, A CONTINUOUSLY DRIVEN FEEDER, A PRIMARY FEEDER COMPRISING A PERVIOUS BELT FOR CARRYING CARDBOARD BLANKS INTO THE CONTINUOUSLY DRIVEN FEEDER, MEANS FOR RETAINING A STACK OF CARDBOARD BLANKS ON THE BELT WITH THE FULL WEIGHT OF THE STACK RESTING ON THE LOWERMOST BLANK, COMPRISING A STOP FOR PREVENTING FORWARD MOVEMENT OF ALL THE BLANKS ABOVE THE LOWERMOST WITH THE UNDERTION CHAMBER WHICH IS IN COMMUNICATION WITH THE UNDERSIDE OF THE BELT THROUGHOUT SUBSTANTIALLY THE ENTIRE AREA UNDERLYING THE STACK OF BLANKS, AND INTERMITTENT DRIVE MECHANISM WHICH IMPARTS TO THE BELT AN INTERMITTENT FORWARD MOVEMENT ALTERNATING WITH A FINITE DWELL, THE LENGTH OF THE FORWARD MOVEMENT BEING SUFFICIENT TO BRING THE LOWERMOST BLANK FROM ITS INITIAL POSITION INTO POSITIVE ENGAGMENT WITH THE CONTINUOUSLY DRIVEN FEEDER, AND THE DURATION OF THE DWELL BEING SUFFICIENT TO PERMIT THE CONTINUOUSLY DRIVEN FEEDER TO PULL THE LOWERMOST BLANK ENTIRELY OUT FROM UNDER THE STACK.
Claim 2
Dependent Claim
157 words
FEEDING MECHANISM FOR CARDBOARD BLANKS COMPRISING, IN COMBINATION, A CONTINUOUSLY DRIVEN FEEDER, A PRIMARY FEEDER COMPRISING A PERVIOUS BELT FOR CARRYING CARDBOARD BLANKS INTO THE CONTINUOUSLY DRIVEN FEEDER, MEANS FOR RETAINING A STACK OF CARDBOARD BLANKS ON THE BELT WITH THE FULL WEIGHT OF THE STACK RESTING ON THE LOWERMOST BLANK, COMPRISING A STOP FOR PREVENTING FORWARD MOVEMENT OF ALL THE BLANKS ABOVE THE LOWERMOST WITH THE UNDERTION CHAMBER WHICH IS IN COMMUNICATION WITH THE UNDERSIDE OF THE BELT THROUGHOUT SUBSTANTIALLY THE ENTIRE AREA UNDERLYING THE STACK OF BLANKS, AND INTERMITTENT DRIVE MECHANISM WHICH IMPARTS TO THE BELT AN INTERMITTENT FORWARD MOVEMENT ALTERNATING WITH A FINITE DWELL, THE LENGTH OF THE FORWARD MOVEMENT BEING SUFFICIENT TO BRING THE LOWERMOST BLANK FROM ITS INITIAL POSITION INTO POSITIVE ENGAGMENT WITH THE CONTINUOUSLY DRIVEN FEEDER, AND THE DURATION OF THE DWELL BEING SUFFICIENT TO PERMIT THE CONTINUOUSLY DRIVEN FEEDER TO PULL THE LOWERMOST BLANK ENTIRELY OUT FROM UNDER THE STACK.
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |