US3293775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data processing apparatus
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1965-04-30
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Granted: 1966-12-27
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Kitrosser Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:49
CPC Classifications
D; D21; D21F; D21F5/00; F; F26; F26B; F26B13/00; F26B13/10; G; G03; G03D; G03D15/00; G03D15/02; G03D15/022; G03D5/00; G03D5/04; G03D7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
APPARATUS PARTICULARLY WELL ADAPTED FOR THE DRYING OF PHOTOGRAPHIC SHEET MATERIAL COMPRISING: (A) DRYING STRUCTURE HAVING A PHOTOGRAPHIC SHEET CONDUIT PASSAGEWAY FORMED THEREIN, SAID CONDUIT PASSAGEWAY HAVING AN INLET PORTION FOR RECEIVING SAID SHEETS TO BE DRIED AND AN OUTLET PORTION FOR DISCHARGING SAID SHEETS; (B) DRIVE MEANS POSITIONED ADJACENT SAID FIRST INLET PORTION OF SAID CONDUIT PASSAGEWAY FOR CAUSING PHOTOGRAPHIC SHEET MATERIAL DRIVEN BY SAID DRIVE MEANS TO BE INTRODUCED INTO THE INLET PORTION OF SAID CONDUIT PASSAGEWAY; (C) APPLICATOR MEANS SITUATED IN THE VICINITY OF THE INLET PORTION OF SAID CONDUIT PASSAGEWAY FOR APPLYING DRYING GAS TO THE UPPER AND LOWER SURFACES OF SAID SHEETS AT A VELOCITY LOW ENOUGH TO PRODUCE CONTINUOUS LAMINAR FLOW OF DRYING GAS THROUGHOUT SUBSTANTIALLY THE ENTIRE LENGTH OF SAID CONDUIT PASSAGEWAY IN SUBSTANTIALLY THE SAME DIRECTION AS THE DIRECTION OF TRAVEL OF SAID SHEETS AND AT A VELOCITY HIGH ENOUGH TO SIMULTANEOUSLY SUPPORT SAID SHEET MATERIAL ON SAID DRYING GAS BOTH IN THE VICINITY OF SAID INLET PORTION OF SAID CONDUIT PASSAGEWAY AND THROUGHOUT SUBSTANTIALLY THE ENTIRE LENGTH OF SAID PASSAGEWAY TO CAUSE THE DRYER TO BE SELF-THREADING AND TO ELIMINATE SHEET FLUTTER.
Claim 2
Dependent Claim
191 words
APPARATUS PARTICULARLY WELL ADAPTED FOR THE DRYING OF PHOTOGRAPHIC SHEET MATERIAL COMPRISING: (A) DRYING STRUCTURE HAVING A PHOTOGRAPHIC SHEET CONDUIT PASSAGEWAY FORMED THEREIN, SAID CONDUIT PASSAGEWAY HAVING AN INLET PORTION FOR RECEIVING SAID SHEETS TO BE DRIED AND AN OUTLET PORTION FOR DISCHARGING SAID SHEETS; (B) DRIVE MEANS POSITIONED ADJACENT SAID FIRST INLET PORTION OF SAID CONDUIT PASSAGEWAY FOR CAUSING PHOTOGRAPHIC SHEET MATERIAL DRIVEN BY SAID DRIVE MEANS TO BE INTRODUCED INTO THE INLET PORTION OF SAID CONDUIT PASSAGEWAY; (C) APPLICATOR MEANS SITUATED IN THE VICINITY OF THE INLET PORTION OF SAID CONDUIT PASSAGEWAY FOR APPLYING DRYING GAS TO THE UPPER AND LOWER SURFACES OF SAID SHEETS AT A VELOCITY LOW ENOUGH TO PRODUCE CONTINUOUS LAMINAR FLOW OF DRYING GAS THROUGHOUT SUBSTANTIALLY THE ENTIRE LENGTH OF SAID CONDUIT PASSAGEWAY IN SUBSTANTIALLY THE SAME DIRECTION AS THE DIRECTION OF TRAVEL OF SAID SHEETS AND AT A VELOCITY HIGH ENOUGH TO SIMULTANEOUSLY SUPPORT SAID SHEET MATERIAL ON SAID DRYING GAS BOTH IN THE VICINITY OF SAID INLET PORTION OF SAID CONDUIT PASSAGEWAY AND THROUGHOUT SUBSTANTIALLY THE ENTIRE LENGTH OF SAID PASSAGEWAY TO CAUSE THE DRYER TO BE SELF-THREADING AND TO ELIMINATE SHEET FLUTTER.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |