US3235249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet feeding apparatus
Assignee: Parnall and Sons Ltd
•
Filing: 1963-04-01
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Granted: 1966-02-15
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Street Leslie John
- 👤 Moult George James Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:45
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/46; B65H3/08; B65H3/12; B65H3/124; G; G06; G06K; G06K13/00; G06K13/02; G06K13/08; G06K13/10; G06K13/107; B65H2301/00; B65H2301/30; B65H2301/32; B65H2301/321; B65H2701/00; B65H2701/10; B65H2701/19; B65H2701/1912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A SINGLE SHEET FEEDING APPARATUS COMPRISING SHEET TRANSPORTING MEANS ADAPTED TO ENGAGE THE FRONT FACE OF THE FOREMOST SHEET OF A STACK OF SHEETS AND TRANSPORTING SAID SHEET EDGEWISE IN A FORWARD DIRECTION, A FIXED HEAD HAVING A PORTED FACE IN PROXIMITY TO THE PATH OF THE REAR FACE OF THE TRANSPORTED SHEET, MEANS INTERMITTENLY APPLYING A NEGATIVE AIR PRESSURE TO SAID PORTS AT TIMED INTERVALS WHICH ARE SO SYNCHRONISED WITH THE OPERATION OF THE SHEET TRANSPORTING MEANS IN FEEDING SAID FOREMOST SHEET AS TO PERMIT TRAVERSE OF SAID FOREMOST SHEET PAST SAID HEAT AND TO RETAIN TEMPORARILY ON THE HEAD ANY TRAILING SECOND SHEET ADHERING TO THE MOVING FOREMOST SHEET,
Claim 2
Dependent Claim
111 words
A SINGLE SHEET FEEDING APPARATUS COMPRISING SHEET TRANSPORTING MEANS ADAPTED TO ENGAGE THE FRONT FACE OF THE FOREMOST SHEET OF A STACK OF SHEETS AND TRANSPORTING SAID SHEET EDGEWISE IN A FORWARD DIRECTION, A FIXED HEAD HAVING A PORTED FACE IN PROXIMITY TO THE PATH OF THE REAR FACE OF THE TRANSPORTED SHEET, MEANS INTERMITTENLY APPLYING A NEGATIVE AIR PRESSURE TO SAID PORTS AT TIMED INTERVALS WHICH ARE SO SYNCHRONISED WITH THE OPERATION OF THE SHEET TRANSPORTING MEANS IN FEEDING SAID FOREMOST SHEET AS TO PERMIT TRAVERSE OF SAID FOREMOST SHEET PAST SAID HEAT AND TO RETAIN TEMPORARILY ON THE HEAD ANY TRAILING SECOND SHEET ADHERING TO THE MOVING FOREMOST SHEET,
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |