US3558223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document centering apparatus
Assignee: Xerox Corp
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Filing: 1968-10-25
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Granted: 1971-01-26
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Expires: 1988-10-25
Abstract
Abstract APPARATUS FOR CENTERING A DOCUMENT BEING TRANSPORTED FROM A FIRST TO A SECOND STATION. THE DOCUMENT IS CONVEYED TO AND CENTERED BY TWO GUIDE RODS AFFIXED TO GUIDE BLOCKS. A DRIVING MEANS IS OPERATIVELY COUPLED TO ONE OF THE GUIDE BLOCKS WHICH, IN TURN, IS COUPLED TO THE OTHER GUIDE BLOCK. AS THE DOCUMENT CONTACTS THE TWO GUIDE RODS, THE DRIVING MEANS IS ENERGIZED AND THE GUIDE RODS ARE WITHDRAWN AS THE DOCUMENT IS PHOTOGRAPHED TO PREVENT THE GUIDE RODS FROM CASTING A SHADOW IN THE DOCUMENT, THE GUIDE RODS ARE THEN RETURNED TO THEIR INITIAL POSITION. MEANS ARE ALSO PROVIDED FOR ADJUSTING THE GUIDE RODS TO ACCOMMODATE FOR VARIOUS SIZE DOCUMENTS.
Inventors
- 👤 Kent W Hemphill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:29
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |