US3622241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary photosensitive material printer
Assignee: Individual
•
Filing: 1970-05-21
•
Granted: 1971-11-23
•
Expires: 1990-05-21
Abstract
Abstract A photosensitive material printer having a pair of water-cooled ultraviolet light sources situated on opposite sides of a workpiece and a pair of negatives which are passed therebetween. The light sources are each positioned within a tubular roller having a rigid translucent inner wall and a pliable translucent pressure outer wall. Air is delivered to the volume between the rigid and the pliable walls so as to maintain firm, fixed contact between the workpiece and the associated negatives. If desired, one or more deflector rollers may be positioned about the periphery of the outer wall to deform it so as to increase the pressure between the rollers and thereby increase the area of contact between the rollers and the workpieces passing therebetween.
Inventors
- 👤 John L Dexter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:40
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
119 words
A photosensitive material printer com prising a base member, a pair of rollers mounted adjacent to one another on said base member for passage of a photosensitive workpiece therebetwee n, at least one of said rollers comprising an inner hollow core hav ing a wall of relatively rigi d translucent material , me ans disposed within said inner core wall for exposing a photosensitive material passing between said pair of rollers, an outer wall of rela tively deformable translucent material radially spaced from said inner core wall , means for sealing the ends of said inner core wall to the ends of said outer wall, and means creating a pressure intermediate said inner core wall and said outer wall.
Claim 2
Dependent Claim
119 words
A photosensitive material printer com prising a base member, a pair of rollers mounted adjacent to one another on said base member for passage of a photosensitive workpiece therebetwee n, at least one of said rollers comprising an inner hollow core hav ing a wall of relatively rigi d translucent material , me ans disposed within said inner core wall for exposing a photosensitive material passing between said pair of rollers, an outer wall of rela tively deformable translucent material radially spaced from said inner core wall , means for sealing the ends of said inner core wall to the ends of said outer wall, and means creating a pressure intermediate said inner core wall and said outer wall.
Claim 3
Dependent Claim
44 words
The printer of claim 1 wh erein said me ans for exposing a photosensitive material passing between said pair of rollers comprises a lamp and means for supporting said lamp within said at least one rolle r radially inward from said inner core wall.
Claim 4
Dependent Claim
35 words
The printer of claim 2 wh erein said exposing means includes me ans positioned relative to said lamp for controlling the angles at which light rays impinge upon the photosensitive workpiece passing between said rollers.
Claim 5
Dependent Claim
16 words
The printer of claim 2 including means fo r absorbing infrared rays generated by said lamp.
Claim 6
Dependent Claim
32 words
The printer of claim 4 wherein said infrared-ray-absorbing means comprises a water jacket situated about said lamp and flow passage means in said water jacket for passing water through said water jacket.
Claim 7
Dependent Claim
17 words
The printer o f claim 2 including means for absorbing visible light rays generated by said lamp.
Claim 8
Dependent Claim
45 words
The printer of claim 6 wherein said visible lig ht ray absorbing means comprises a water jacket situated about said lamp, means for passing water through said water jacket , and means in the water passing through said water jacket for absorbing visible light rays.
Claim 9
Dependent Claim
86 words
The priNter of claim 7 wherein said means in the wat er passing through said jacket comprises a c hemical substance which tends to absorb visible light rays whil e allowing the passage of a substantial majority of ultraviolet light rays generated by said lamp. 9 . The printer of claim 6 wherein said visible light ray absorbing means comprises a wat er jacket situated about said lamp including tinted glass therein for absorbing visible light rays, and means for passing water through said water jacket.
Claim 10
Dependent Claim
43 words
The printer of claim 1 wherein said pressure creating means includes an air delivery system and means connecte d to said air delivery system and the volume intermediate said inner core wall and said outer wall for passage of air into that volume.
Claim 11
Dependent Claim
33 words
The printer of claim 1 wherein said pressure creating means includes at least one deformation roller in contact with said outer wall for ra dial deformation of a portion of said outer wall.
Claim 12
Dependent Claim
29 words
The printer of claim 1 including means for cooling said at least one roller comprising means for passing air through said inner core wall and over said outer wall.
Claim 13
Dependent Claim
40 words
The prin ter of claim 12 including means for filtering the cooling air and me ans on said base member for preventing the entry of contaminants into the ar ea about the rollers by creating a positive airflow away therefrom.
Claim 14
Dependent Claim
75 words
The printer of claim 1 wherein each of said rollers includes an inner hollow core having a wall of relatively rigid translucent material and an outer wall of relatively deformable translucent material radially sp aced from said inner core wall, each having an ultravi olet lamp positioned internally of said inner core wall and means for directing the ultraviolet rays generated by said lamps toward the plane in which a workpiece passes between said rollers.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |