US3733709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector and cooling means therefor
Assignee: Sun Chemical Corp
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Filing: 1971-05-06
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Granted: 1973-05-22
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Expires: 1991-05-06
Abstract
Abstract Printing apparatus utilizing lamps generating ultraviolet light to cure solvent-free ink by photopolymerization is provided with lamp reflectors having shutters to permit the lamps to remain energized while the printed work conveyor is stopped or is moving at a slow rate. A plurality of such lamps, each with an individual shutter, are arranged in parallel rows extending transverse to direction of movement of the work. As the shutters are closed, lamp voltage is reduced to a standby point where the lamps remain fired. Air is circulated at the same time behind the lamp reflector for cooling of the latter without appreciably cooling the lamp. Each reflector is a sheet of non-oxidizing metal mounted in the concave portion of a structurally strong housing. End reflectors prevent end scattering of the lampradiated energy and shield the lamp sockets from the heating effects of this energy. The lamp sockets are repositionable with respect to the reflector so that the arc thereof may be positioned generally along the focus line of the reflector for different positions of the focus line with respect to earth.
Inventors
- 👤 R Bassemir
- 👤 J Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:59
CPC Classifications
B; B41; B41F; B41F23/00; B41F23/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
100 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including an ultraviolet-producing lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp.
Claim 2
Dependent Claim
100 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including an ultraviolet-producing lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp.
Claim 3
Dependent Claim
150 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said worK and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp; a reflector means to direct radiation from said lamp toward said feed path; cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp; and a shutter means operable to a closed position to block radiation from reaching said feed path, operating means to open and close said shutter means, second control means to automatically coordinate operation of said cooling means and said shutter means, whereby upon closing of said shutter means said air flow is increased.
Claim 4
Dependent Claim
150 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said worK and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp; a reflector means to direct radiation from said lamp toward said feed path; cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp; and a shutter means operable to a closed position to block radiation from reaching said feed path, operating means to open and close said shutter means, second control means to automatically coordinate operation of said cooling means and said shutter means, whereby upon closing of said shutter means said air flow is increased.
Claim 5
Dependent Claim
135 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said reflector means including an elongated housing and an elongated reflector sheet secured thereto in a manner to permit relative movement therebetween thereby accommodating for differential expansions; said housing being constructed to direct said air flow.
Claim 6
Dependent Claim
135 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said reflector means including an elongated housing and an elongated reflector sheet secured thereto in a manner to permit relative movement therebetween thereby accommodating for differential expansions; said housing being constructed to direct said air flow.
Claim 7
Dependent Claim
21 words
Apparatus as set forth in claim 3 in which the housing is constructed of much stronger material than said reflector sheet.
Claim 8
Dependent Claim
25 words
Apparatus as set forth in claim 4 in which the reflector sheet is constructed of material having generally the oxidation-resisting and reflecting properties of Lurium.
Claim 9
Dependent Claim
138 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said lamp including an elongated envelope; and additional reflectors at each end of said reflector means to reduce end spill of radiation from said lamp and to shield the ends of said envelope from excessive heating by lamp-produced radiation.
Claim 10
Dependent Claim
138 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said lamp including an elongated envelope; and additional reflectors at each end of said reflector means to reduce end spill of radiation from said lamp and to shield the ends of said envelope from excessive heating by lamp-produced radiation.
Claim 11
Dependent Claim
152 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said lamp including an elongated envelope; sockets removably mounting said lamp and positioned at opposite ends thereof; and means repositionably mounting said sockets relative to said reflector means so that an electric current arc in said envelope is properly positioned with respect to said reflector means for different positions thereof relative to earth.
Claim 12
Dependent Claim
152 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said lamp including an elongated envelope; sockets removably mounting said lamp and positioned at opposite ends thereof; and means repositionably mounting said sockets relative to said reflector means so that an electric current arc in said envelope is properly positioned with respect to said reflector means for different positions thereof relative to earth.
Claim 13
Dependent Claim
58 words
Apparatus as set forth in claim 7 in which the reflector means includes an elongated housing constructed to direct said air flow; said sockets being secured to said housing; additional reflectors at each end of said envelope to reduce end spill of radiation from said lamp and to shield said sockets from excessive heating bY lamp produced radiation.
Claim 14
Dependent Claim
37 words
Apparatus as set forth in claim 8 in which the additional reflectors cooperate with portions of said housing to define chambers wherein said sockets are disposed; said air flow being through said chambers to cool said sockets.
Claim 15
Dependent Claim
144 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said reflector means including an elongated housing and an elongated concave reflector sheet secured to said housing; said housing having a plurality of inlet openings positioned adjacent the long edges of said reflector sheet to facilitate clearing ozone from the area inside said reflector sheet.
Claim 16
Dependent Claim
144 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said reflector means including an elongated housing and an elongated concave reflector sheet secured to said housing; said housing having a plurality of inlet openings positioned adjacent the long edges of said reflector sheet to facilitate clearing ozone from the area inside said reflector sheet.
Claim 17
Dependent Claim
110 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said reflector means being an elongated hood-like member of elliptical cross-section.
Claim 18
Dependent Claim
110 words
Apparatus including curing means for solvent-free coating and printing material, said curing means including radiant energy means, and conveyor means for moving work to which said material is applied along a feed path in front of said radiant energy means, whereby radiation therefrom impinges on said work and cures the material thereon; said radiant energy means comprising a plurality of sections each including a lamp and a reflector means to direct radiation from said lamp toward said feed path and cooling means for generating air flow along said reflector means to cool the latter without appreciably cooling said lamp, said reflector means being an elongated hood-like member of elliptical cross-section.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |