US4668073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixing apparatus
Assignee: Dainippon Screen Manufacturing Co Ltd
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Filing: 1985-05-03
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Granted: 1987-05-26
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Expires: 2005-05-03
Abstract
Abstract A photographic fixing apparatus in which photosensitive material to be fixed is fed between upper and lower inclined guideplates, preferably in the form of a plurality of parallel rods, with the lower plate being transparent and with both plates being ventilated to permit the passage of air therethrough. A halogen fixing heater with a quartz filter colored to filter out wavelengths of light to which the photosensitive material is sensitive being provided below the lower guide plate and with a blower being provided to blow air from below the guide plates through the guide plates to maintain photosensitive material passing between the guide plates out of contact with the lower guide plate.
Inventors
- 👤 Yukio Hatabe
- 👤 Yoshio Miyauchi
- 👤 Masao Fukushima
- 👤 Toru Horikawa
- 👤 Yoshihiko Bessho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:44
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2007
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
70 words
A fixing apparatus for immediately producing wetting electronic photographs characterized by a fixing heater which emits light having only wavelengths outside of the range of wavelengths to which spectro-sensitive areas of a photosensitive material are sensitive wherein said fixing heater is a halogen lamp heater having a colored quartz filter, to eliminate light in the spectro-photosensitive wavelength areas of the photosensitive material, located between the lamp and the photosensitive material.
Claim 2
Dependent Claim
70 words
A fixing apparatus for immediately producing wetting electronic photographs characterized by a fixing heater which emits light having only wavelengths outside of the range of wavelengths to which spectro-sensitive areas of a photosensitive material are sensitive wherein said fixing heater is a halogen lamp heater having a colored quartz filter, to eliminate light in the spectro-photosensitive wavelength areas of the photosensitive material, located between the lamp and the photosensitive material.
Claim 3
Dependent Claim
124 words
A fixing apparatus for immediately producing wetting electronic photographs in which a photosensitive material having been developed is fed therethrough and guided by opposed upper and lower ventilated guiding plates disposed with a space therebetween, and having a fixing heater composed of a halogen lamp the light from which passes through a quartz filter, which filter is colored to prevent wavelengths of light which are within the range of spectro-photosensitive wavelengths of said photosensitive material from reaching the photosensitive material, and having an air blower means to blow air upwardly to maintain the photosensitive material out of contact with the lower guiding plate, said lower guiding plate being transparent and said heater being disposed to heat said photosensitive material through said transparent guiding plate.
Claim 4
Dependent Claim
124 words
A fixing apparatus for immediately producing wetting electronic photographs in which a photosensitive material having been developed is fed therethrough and guided by opposed upper and lower ventilated guiding plates disposed with a space therebetween, and having a fixing heater composed of a halogen lamp the light from which passes through a quartz filter, which filter is colored to prevent wavelengths of light which are within the range of spectro-photosensitive wavelengths of said photosensitive material from reaching the photosensitive material, and having an air blower means to blow air upwardly to maintain the photosensitive material out of contact with the lower guiding plate, said lower guiding plate being transparent and said heater being disposed to heat said photosensitive material through said transparent guiding plate.
Claim 5
Dependent Claim
29 words
A fixing apparatus according to claim 2, wherein said guiding plates comprise a plurality of guiding rods inclined with respect to the direction of feeding of the photosensitive material.
References Cited (Backward Citations)
US3900590A
Cited
US3655280A
Cited
US3716018A
Cited
US3772497A
Cited
US3765828A
Cited
US3869612A
Cited
US4090108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |