Patent US4068249A successfully refreshed from Google Patents.
US4068249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developing apparatus
Assignee: Hoechst AG
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Filing: 1974-02-15
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Granted: 1978-01-10
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Expires: 1994-02-15
Abstract
Abstract An apparatus for developing photosensitive material with a gaseous medium comprising a housing having a developing chamber therein, at least one rotor in said developing chamber, said rotor extending over substantially the entire width of material to be developed and being mounted at a distance of about 0.05 to 20 mm from the material to be developed, a device for introducing gaseous developer medium between the rotor and the interior walls of said chamber, and a device for passing material to be developed through the apparatus, whereby it contacts said gaseous developer medium.
Inventors
- 👤 Karl-Heinz Degenhardt
- 👤 Hermann Frank
- 👤 Gerhard Marx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:47
CPC Classifications
G; G03; G03D; G03D7/00
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
151 words
An apparatus for developing photo-sensitive material with a gaseous medium comprising housing means having developing chamber means therein, at least one rotor means in said developing chamber means, said rotor means extending over substantially the entire width of material to be developed and being mounted at a distance of about 0.05 to 20 mm from the material to be developed, the peripheral speed of the rotor means being at least twice as great as the speed at which the material to be developed passes through the apparatus when a point on the surface of the rotor and on that face presented to the material to be developed moves in the same direction as the material, means for introducing gaseous developer medium between said rotor means and the interior walls of said chamber means, and means for passing material to be developed through said apparatus, whereby it contacts said gaseous developer medium.
Claim 2
Independent Claim
151 words
An apparatus for developing photo-sensitive material with a gaseous medium comprising housing means having developing chamber means therein, at least one rotor means in said developing chamber means, said rotor means extending over substantially the entire width of material to be developed and being mounted at a distance of about 0.05 to 20 mm from the material to be developed, the peripheral speed of the rotor means being at least twice as great as the speed at which the material to be developed passes through the apparatus when a point on the surface of the rotor and on that face presented to the material to be developed moves in the same direction as the material, means for introducing gaseous developer medium between said rotor means and the interior walls of said chamber means, and means for passing material to be developed through said apparatus, whereby it contacts said gaseous developer medium.
Claim 3
Dependent Claim
16 words
An apparatus according to claim 1 in which said rotor means includes a plurality of rotors.
Claim 4
Dependent Claim
27 words
An apparatus according to claim 1 in which the distance between the rotor means and the material to be developed is between about 0.5 and 2 mm.
Claim 5
Dependent Claim
18 words
An apparatus according to claim 1 in which the rotor means is a roll having a polished surface.
Claim 6
Dependent Claim
17 words
An apparatus according to claim 1 in which the rotor means is a roll of hexagonal cross-section.
Claim 7
Dependent Claim
18 words
An apparatus according to claim 1 in which the rotor means is a hollow roll of porous material.
Claim 8
Dependent Claim
16 words
An apparatus according to claim 1 in which the rotor means is a hollow perforated roll.
Claim 9
Dependent Claim
13 words
An apparatus according to claim 1 including vaporizer means in said rotor means.
Claim 10
Dependent Claim
19 words
An apparatus according to claim 1 in which said developing chamber means is substantially filled by said rotor means.
Claim 11
Dependent Claim
18 words
An apparatus according to claim 1 in which the rotor means is a roll having a sand-blasted surface.
Claim 12
Dependent Claim
18 words
An apparatus according to claim 1 in which the rotor means is a roll having a grooved surface.
Claim 13
Dependent Claim
18 words
An apparatus according to claim 1 in which the rotor means is a roll having a knurled surface.
Claim 14
Dependent Claim
18 words
An apparatus according to claim 1 in which the rotor means is a roll having a star-shaped cross-section.
Claim 15
Independent Claim
152 words
An apparatus for developing photo-sensitive material with a gaseous medium comprising housing means having developing chamber means therein, at least one rotor means in said developing chamber means, said rotor means extending over substantially the entire width of material to be developed and being mounted at a distance of about 0.05 to 20 mm from the material to be developed, the peripheral speed of the rotor means being at least as great as the speed at which the material to be developed passes through the apparatus when a point on the surface of the rotor and on that side presented to the material to be developed moves in the opposite direction to that of the material, means for introducing gaseous developer medium between said rotor means and the interior walls of said chamber means, and means for passing material to be developed through said apparatus, whereby it contacts said gaseous developer medium.
Claim 16
Independent Claim
152 words
An apparatus for developing photo-sensitive material with a gaseous medium comprising housing means having developing chamber means therein, at least one rotor means in said developing chamber means, said rotor means extending over substantially the entire width of material to be developed and being mounted at a distance of about 0.05 to 20 mm from the material to be developed, the peripheral speed of the rotor means being at least as great as the speed at which the material to be developed passes through the apparatus when a point on the surface of the rotor and on that side presented to the material to be developed moves in the opposite direction to that of the material, means for introducing gaseous developer medium between said rotor means and the interior walls of said chamber means, and means for passing material to be developed through said apparatus, whereby it contacts said gaseous developer medium.
Claim 17
Dependent Claim
16 words
An apparatus according to claim 14 in which said rotor means includes a plurality of rotors.
Claim 18
Dependent Claim
27 words
An apparatus according to claim 14 in which the distance between the rotor means and the material to be developed is between about 0.5 and 2 mm.
Claim 19
Dependent Claim
18 words
An apparatus according to claim 14 in which the rotor means is a roll having a polished surface.
Claim 20
Dependent Claim
18 words
An apparatus according to claim 14 in which the rotor means is a roll having a sand-blasted surface.
Claim 21
Dependent Claim
18 words
An apparatus according to claim 14 in which the rotor means is a roll having a grooved surface.
Claim 22
Dependent Claim
18 words
An apparatus according to claim 14 in which the rotor means is a roll having a knurled surface.
Claim 23
Dependent Claim
17 words
An apparatus according to claim 14 in which the rotor means is a roll of hexagonal cross-section.
Claim 24
Dependent Claim
17 words
An apparatus according to claim 14 in which the rotor means is a roll of star-shaped cross-section.
Claim 25
Dependent Claim
18 words
An apparatus according to claim 14 in which the rotor means is a hollow roll of porous material.
Claim 26
Dependent Claim
16 words
An apparatus according to claim 14 in which the rotor means is a hollow perforated roll.
Claim 27
Dependent Claim
13 words
An apparatus according to claim 14 including vaporizer means in said rotor means.
Claim 28
Dependent Claim
19 words
An apparatus according to claim 14 in which said developing chamber means is substantially filled by said rotor 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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |