US3105681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for feeding cardboard and like blanks to creasing, slotting, folding or other treating machinery
Assignee: Deritend Engineering Co Ltd
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Filing: 1961-07-24
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Granted: 1963-10-01
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Expires: 1981-07-24
Abstract
No abstract record available.
Inventors
- 👤 Bishop Thomas Desmond
- 👤 Bishop Gwendolin Alice
- 👤 Cheatle Hazel Sheila Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:11
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/12; B65H3/124; B65H3/126; B65B; B65B43/00; B65B43/12; B65B43/14; B65B43/16; B65B43/18; B65B43/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
MECHANISM FOR FEEDING CARDBOARD OR LIKE BLANKS TO CREASING, SLOTTING FOLDING OR OTHER TREATING MACHINERY, COMPRISING; FIRST SUCTION MEANS, A TABLE FOR SUPPORTING THE BLANKS HAVING PROVIDED THEREIN A PLURALITY OF OPENINGS OR CAVITIES ADJACENT THE FORWARD PARTS OF THE BLANKS THROUGH WHICH A PRE-SUCTION OR NEGATIVE PRESSURE OF A FIRST DEGREE IS APPLIED BY SAID FIRST SUCTION MEANS; SAID PRE-SUCTION BEING OPERATIVE TO PULL THE FOREPART OF THE LOWERMOST BLANK DOWNWARDLY SUBSTANTIALLY THROUGHOUT ITS WIDTH; AND A RECIPROCATORY SUCTION FEED CUP FOR ENGAGING THE BLANK AND APPLYING TO THE BLANK A SUCTION OR NEGATIVE PRESSURE OF A SECOND DEGREE WHICH IS GREATER THAN SAID FIRST DEGREE AFTER SAID PRE-SUCTION OPERATION, SAID OPENINGS OR CAVITIES FOR THE NEGATIVE PRESSURE BEING ARRANGED IN THE TABLE ON EACH SIDE OF AND BEHIND THE STARTING POSITION OF THE RECIPROCATORY SUCTION FEED CUP.
Claim 2
Dependent Claim
139 words
MECHANISM FOR FEEDING CARDBOARD OR LIKE BLANKS TO CREASING, SLOTTING FOLDING OR OTHER TREATING MACHINERY, COMPRISING; FIRST SUCTION MEANS, A TABLE FOR SUPPORTING THE BLANKS HAVING PROVIDED THEREIN A PLURALITY OF OPENINGS OR CAVITIES ADJACENT THE FORWARD PARTS OF THE BLANKS THROUGH WHICH A PRE-SUCTION OR NEGATIVE PRESSURE OF A FIRST DEGREE IS APPLIED BY SAID FIRST SUCTION MEANS; SAID PRE-SUCTION BEING OPERATIVE TO PULL THE FOREPART OF THE LOWERMOST BLANK DOWNWARDLY SUBSTANTIALLY THROUGHOUT ITS WIDTH; AND A RECIPROCATORY SUCTION FEED CUP FOR ENGAGING THE BLANK AND APPLYING TO THE BLANK A SUCTION OR NEGATIVE PRESSURE OF A SECOND DEGREE WHICH IS GREATER THAN SAID FIRST DEGREE AFTER SAID PRE-SUCTION OPERATION, SAID OPENINGS OR CAVITIES FOR THE NEGATIVE PRESSURE BEING ARRANGED IN THE TABLE ON EACH SIDE OF AND BEHIND THE STARTING POSITION OF THE RECIPROCATORY SUCTION FEED CUP.
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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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |