US3603827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling device for mercury-arc lamp or the like
Assignee: Sony Corp
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Filing: 1969-06-26
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Granted: 1971-09-07
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Expires: 1989-06-26
Abstract
Abstract A cooling device for a mercury-arc lamp having a housing, an inlet nozzle for introducing cooling water into the housing, a mercury-arc lamp, an exhaust port for discharging the cooling water from the housing, a conduit communicating with the exhaust port and containing the lamp, and a transparent window for directing light of the lamp to the outside. The inlet nozzle jets the cooling water in the vicinity of the window.
Inventors
- 👤 Jiro Degawa
- 👤 Osamu Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:51
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/52
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
159 words
A light source for producing a fan-shaped beam of light comprising a housing, a light source lamp mounted within said housing, a conduit having at least one portion which is transparent attached to said housing and surrounding said light source lamp, a transparent window mounted in said housing and in alignment with said transparent portion of said conduit for directing a beam of light from said lamp outside said housing, an inlet port for introducing cooling fluid into said housing, an exhaust port for discharging cooling fluid from said housing, said exhaust port connected to said conduit, a nozzle mounted within said housing and communicating with the inlet port and said nozzle positioned to locally direct cooling fluid onto the window formed in said housing, and said conduit formed with an opening for receiving said cooling fluid after it has been directed past said window to direct the cooling fluid over said light source lamp to said exhaust port.
Claim 2
Dependent Claim
159 words
A light source for producing a fan-shaped beam of light comprising a housing, a light source lamp mounted within said housing, a conduit having at least one portion which is transparent attached to said housing and surrounding said light source lamp, a transparent window mounted in said housing and in alignment with said transparent portion of said conduit for directing a beam of light from said lamp outside said housing, an inlet port for introducing cooling fluid into said housing, an exhaust port for discharging cooling fluid from said housing, said exhaust port connected to said conduit, a nozzle mounted within said housing and communicating with the inlet port and said nozzle positioned to locally direct cooling fluid onto the window formed in said housing, and said conduit formed with an opening for receiving said cooling fluid after it has been directed past said window to direct the cooling fluid over said light source lamp to said exhaust port.
Claim 3
Dependent Claim
23 words
A device according to claim 1 wherein said housing is mounted such that the window is on the upper portion of said housing.
Claim 4
Dependent Claim
18 words
A device according to claim 2 wherein said nozzle is mounted at a location above said exhaust port.
Claim 5
Dependent Claim
17 words
A cooling device as claimed in claim 1 wherein the light source lamp is a mercury-arc lamp.
Claim 6
Dependent Claim
20 words
A cooling device as claimed in claim 4 which includes means for supporting the mercury-arc lamp on both ends thereof.
Claim 7
Dependent Claim
22 words
A cooling device as claimed in claim 5 which includes a screw for securing one of the support means to the housing.
Claim 8
Dependent Claim
21 words
A cooling device as claimed in claim 6 wherein removal of the one support means permits removal of the mercury-arc lamp.
Claim 9
Dependent Claim
27 words
A cooling device as claimed in claim 1 wherein the window is cylindrical in shape and is arranged parallel to the length of the light source lamp.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |