US3983039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-symmetrical reflector for ultraviolet curing
Assignee: Fusion Systems Corp
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Filing: 1975-03-03
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Granted: 1976-09-28
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Expires: 1995-03-03
Abstract
Abstract In an apparatus for curing photosensitive inks and coatings comprising an ultraviolet light emitting lamp unit comprised of a tubular elongated ultraviolet lamp and a reflector, and means for moving a substrate, on which said inks or coatings are deposited, under said lamp unit the improvement wherein said reflector is comprised of a first reflecting means for providing a region of peaked relatively high intensity illumination on said substrate and a second reflecting means for providing a region of relatively lower illumination upstream of said high intensity illumination for pre-curing the ink or coating on said substrate.
Inventors
- 👤 Bernard J. Eastland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:19
CPC Classifications
B; B41; B41F; B41F23/00; B41F23/04; B41F23/0403; B41F23/0406; B41F23/0409; F; F21; F21V; F21V7/00; F21V7/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
126 words
A lamp unit for use in curing photosensitive inks and coatings comprising a single elongated tubular ultraviolet lamp mounted in a reflector, said reflector being comprised of a first reflecting means partially surrounding said lamp for providing a region of peaked relatively high intensity illumination and a second reflecting means for providing a region of tapered relatively lower intensity illumination, said first reflecting means comprising a continuous curved surface having an axis of revolution, said second reflecting means comprising a plane surface extending outwardly from said curved surface and joining said curved surface at an obtuse angle so that said tapering increases in the outward direction of said plane surface, said lamp being mounted so that its longitudinal dimension is parallel to said axis of revolution.
Claim 2
Dependent Claim
126 words
A lamp unit for use in curing photosensitive inks and coatings comprising a single elongated tubular ultraviolet lamp mounted in a reflector, said reflector being comprised of a first reflecting means partially surrounding said lamp for providing a region of peaked relatively high intensity illumination and a second reflecting means for providing a region of tapered relatively lower intensity illumination, said first reflecting means comprising a continuous curved surface having an axis of revolution, said second reflecting means comprising a plane surface extending outwardly from said curved surface and joining said curved surface at an obtuse angle so that said tapering increases in the outward direction of said plane surface, said lamp being mounted so that its longitudinal dimension is parallel to said axis of revolution.
Claim 3
Dependent Claim
28 words
The lamp unit of claim 1 wherein said plane surface extends outwardly from said curved surface at the bottom edge of said curved surface at one side thereof.
Claim 4
Dependent Claim
14 words
The lamp unit of claim 1 wherein said curved reflecting surface is elliptically shaped.
Claim 5
Dependent Claim
14 words
The lamp unit of claim 1 wherein said curved reflecting surface is parabolically shaped.
Claim 6
Dependent Claim
47 words
The lamp unit of claim 2 wherein said reflector further included a second plane surface extending outwardly from said curved surface at the bottom edge on the side opposite said one side thereof, said second plane surface being no longer in length than said first plane surface.
Claim 7
Dependent Claim
28 words
The lamp unit of claim 5 wherein said curved reflecting surface and said first and second plane surfaces are surfaces of discrete elements which have been secured together.
Claim 8
Dependent Claim
24 words
The lamp unit of claim 1 further including inert gas source means for displacing oxygen, disposed in said unit underneath said substantially plane surface.
Claim 9
Dependent Claim
98 words
In an apparatus for curing photosensitive inks or coatings comprising an ultraviolet light emitting lamp unit comprised of a single tubular elongated ultraviolet lamp and a reflector, and means for moving a substrate on which said inks or coatings are deposited under said lamp unit, the improvement wherein said reflector is comprised of a first reflecting means for providing a region of peaked relatively high intensity illumination on said substrate and a second reflecting means for providing a region of relatively lower illumination upstream of said high intensity illumination for pre-curing the ink or coating on said substrate.
Claim 10
Dependent Claim
98 words
In an apparatus for curing photosensitive inks or coatings comprising an ultraviolet light emitting lamp unit comprised of a single tubular elongated ultraviolet lamp and a reflector, and means for moving a substrate on which said inks or coatings are deposited under said lamp unit, the improvement wherein said reflector is comprised of a first reflecting means for providing a region of peaked relatively high intensity illumination on said substrate and a second reflecting means for providing a region of relatively lower illumination upstream of said high intensity illumination for pre-curing the ink or coating on said substrate.
Claim 11
Dependent Claim
55 words
The apparatus of claim 8 wherein said first means comprises a curved reflecting element and said elongated lamp is mounted parallel to the longitudinal axis of said curved reflecting element, and said second means comprises a substantially plane reflecting element extending outwardly and in the upstream direction from said curved element at an obtuse angle.
Claim 12
Dependent Claim
27 words
The apparatus of claim 9 wherein said plane element extends outwardly from said curved element at the bottom edge of said curved element at one side thereof.
Claim 13
Dependent Claim
12 words
The apparatus of claim 10 wherein said curved element is elliptically shaped.
Claim 14
Dependent Claim
12 words
The apparatus of claim 10 wherein said curved element is parabolically shaped.
Claim 15
Dependent Claim
32 words
The apparatus of claim 10 wherein the transverse axis of said curved element is not perpendicular to said substrate so that the mouth of said curved element faces in the upstream direction.
Claim 16
Dependent Claim
20 words
The apparatus of claim 10 further including an inert gas source disposed in said unit underneath said substantially plane element.
References Cited (Backward Citations)
US2592075A
Cited
US3609340A
Cited
US3679893A
Cited
US3733461A
Cited
US3777135A
Cited
US3790801A
Cited
US3784836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |