Patent US3154306A successfully refreshed from Google Patents.
US3154306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-gripping sucker
Assignee: Harris Graphics Corp
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Filing: 1962-10-29
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Granted: 1964-10-27
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Elliott
- 👤 Alfred J Staines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:48
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/0808; B65H3/0883
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
THE METHOD OF HANDLING A SHEET COMPRISING ENGAGING THE SHEET WITH A SUCKER HAVING A FIRST SUCTION MOUTH FORMED BY A THIN RESILIENTLY FLEXIBLE MATERIAL THROUGH A SECOND SUCTION MOUTH OF HEAVIER MATERIAL THAN SAID FIRST SUCTION MOUTH, ESTABLISHING A VACUUM IN SAID SECOND SUCTION MOUTH BY DRAWING AIR FROM THE FIRST SUCTION MOUTH THROUGH THE SECOND SUCTION MOUTH TO CAUSE SAID FIRST SUCTION MOUTH TO GRIP THE SHEET, TO DISTORT, AND TO MOVE THE SHEET INTO ENGAGEMENT WITH THE SECOND SUCTION MOUTH TO SEAL AGAINST THE SECOND SUCTION MOUTH AND BREAK THE VACUUM BEING DRAWN ON THE FIRST SUCTION MOUTH TO EFFECT A RELEASE OF THE LATTER, AND RE-ESTABLISHING THE VACUUM IN THE FIRST SUCTION MOUTH IN THE EVENT THE SEAL IS BROKEN IN THE SECOND SUCTION MOUTH DURING THE HANDLING OF THE 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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |