US3211451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Ampex Corp
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Filing: 1962-05-07
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Granted: 1965-10-12
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Expires: 1982-05-07
Abstract
No abstract record available.
Inventors
- 👤 Charles S Masterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:53
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/58; B65H29/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A SEPARATOR FOR A PAIR OF SUPERIMPOSED SHEETS, COMPRSING: A PAIR OF ENGAGED BUT DIVERGINGLY CIRCULATING UPPER AND LOWER MEMBERS FOR PINCHING AT LEAST THE TRAILING ENDS OF SAID SHEETS TOGETHER AND FOR MOVING SAID SHEETS ENDWISE IN A GENERALLY HORIZONTAL PLANE TO A POSITION IN WHICH THE LEADING ENDS OF SAID SHEETS ARE OVERHANGING AN EMPTY SPACE, SAID UPPER MEMBER BEING AN OPENWORK MEMBER; A PNEUMATIC SUCTION MEANS POSITIONED IN A PREDETERMINED ZONE ABOVE SAID UPPER OPENWORK MEMBER AND ABOVE SAID EMPTY SPACE AND SPACED SUBSTANTIALLY FROM SAID LOWER MEMBER, SO AS TO CAUSE A LOCAL PORTION OF THE UPPERMOST OF SAID SHEETS TO ADHERE TO SAID UPPER MEMBER IN PASSAGE THROUGH SAID PREDETERMINED ZONE, WHILE THE LOWERMOST SHEET DROPS INTO SAID SPACE; MEANS FOR CAUSING CIRCULATION OF SAID UPPER MEMBER UPWARDLY AND IN A REVERSE DIRECTION IMMEDIATELY BEYOND SAID PNEUMATIC MEANS;
Claim 2
Dependent Claim
143 words
A SEPARATOR FOR A PAIR OF SUPERIMPOSED SHEETS, COMPRSING: A PAIR OF ENGAGED BUT DIVERGINGLY CIRCULATING UPPER AND LOWER MEMBERS FOR PINCHING AT LEAST THE TRAILING ENDS OF SAID SHEETS TOGETHER AND FOR MOVING SAID SHEETS ENDWISE IN A GENERALLY HORIZONTAL PLANE TO A POSITION IN WHICH THE LEADING ENDS OF SAID SHEETS ARE OVERHANGING AN EMPTY SPACE, SAID UPPER MEMBER BEING AN OPENWORK MEMBER; A PNEUMATIC SUCTION MEANS POSITIONED IN A PREDETERMINED ZONE ABOVE SAID UPPER OPENWORK MEMBER AND ABOVE SAID EMPTY SPACE AND SPACED SUBSTANTIALLY FROM SAID LOWER MEMBER, SO AS TO CAUSE A LOCAL PORTION OF THE UPPERMOST OF SAID SHEETS TO ADHERE TO SAID UPPER MEMBER IN PASSAGE THROUGH SAID PREDETERMINED ZONE, WHILE THE LOWERMOST SHEET DROPS INTO SAID SPACE; MEANS FOR CAUSING CIRCULATION OF SAID UPPER MEMBER UPWARDLY AND IN A REVERSE DIRECTION IMMEDIATELY BEYOND SAID PNEUMATIC MEANS;
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |