US3816784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High power electric discharge lamp with cooled base assembly
Assignee: PATENT GES GLUEHLAMPEN MBH
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Filing: 1973-05-03
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Granted: 1974-06-11
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Expires: 1993-05-03
Abstract
Abstract Fluid cooled high power discharge lamp, more particularly a high pressure xenon discharge lamp with a power input of more than 10 kW capable of being disassembled. A cooling system is included in the base assembly. A clamping ring clamps a coupling flange in which a plurality of ducts and tubes for coolant are embedded; the coolant cools both the electrode and the lamp base assembly. Resilient packings are interposed between the component parts, in the vicinity of the ducts, to be cooled by the coolant.
Inventors
- 👤 G Weninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:27
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/52
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
273 words
Separable electric discharge lamp having a fluid-cooled base assembly and a fluid-cooled electrode assembly, separable from the base assembly, and being essentially a body of rotation having an axis, comprising a flange (5) formed on the base assembly; a separable arc tube (1) and electrode tube (2), forming said electrode assembly, each tube being formed with a flange; a clamp ring (4) clamping said flanges together in overlapping relation; duct means (11, 21, 22; 21'', 22'', 24) formed in said base assembly flange (5) and in the clamp ring (4); axially extending connecting tubes (10, 10'') connecting said duct means; a cooling fluid supply and return tube means (19) secured to the base assembly and extending into the lamp to supply cooling fluid to the electrode to cool the electrode, and return the fluid to the base assembly, the tube means communicating with, and forming part of a flow path including first selected ones of the duct means (22) in the base assembly flange (5) extending laterally from an axial region towards a circumferential region thereof, said first selected ones of the duct means (22) communicating with first axially extending connecting tubes (10) and with the duct means (11) formed in the clamping ring (4); said duct means (11) in the clamping ring (4) communicating with second axially extending connecting tubes (10'') and laterally extending ones of the duct means (22'', 21'') in the base assembly (5), and fluid outlet means (23, 24, 25) formed in the base assembly communicating with the laterally extending outlet duct means; and resilient sealing means (7, 8, 13, 15, 17) sealing the flanges of the lamp together.
Claim 2
Dependent Claim
273 words
Separable electric discharge lamp having a fluid-cooled base assembly and a fluid-cooled electrode assembly, separable from the base assembly, and being essentially a body of rotation having an axis, comprising a flange (5) formed on the base assembly; a separable arc tube (1) and electrode tube (2), forming said electrode assembly, each tube being formed with a flange; a clamp ring (4) clamping said flanges together in overlapping relation; duct means (11, 21, 22; 21'', 22'', 24) formed in said base assembly flange (5) and in the clamp ring (4); axially extending connecting tubes (10, 10'') connecting said duct means; a cooling fluid supply and return tube means (19) secured to the base assembly and extending into the lamp to supply cooling fluid to the electrode to cool the electrode, and return the fluid to the base assembly, the tube means communicating with, and forming part of a flow path including first selected ones of the duct means (22) in the base assembly flange (5) extending laterally from an axial region towards a circumferential region thereof, said first selected ones of the duct means (22) communicating with first axially extending connecting tubes (10) and with the duct means (11) formed in the clamping ring (4); said duct means (11) in the clamping ring (4) communicating with second axially extending connecting tubes (10'') and laterally extending ones of the duct means (22'', 21'') in the base assembly (5), and fluid outlet means (23, 24, 25) formed in the base assembly communicating with the laterally extending outlet duct means; and resilient sealing means (7, 8, 13, 15, 17) sealing the flanges of the lamp together.
Claim 3
Dependent Claim
45 words
Lamp according to claim 1, further comprising a fluid directing plate (20) secured to the base assembly flange, the fluid directing plate being formed with openings establishing fluid communication between the return flow from the electrode and the first selected ones of the duct means.
Claim 4
Dependent Claim
71 words
Lamp according to claim 1, comprising a connecting ring (3) connecting the base assembly flange (5) and the clamping ring (4); and wherein the resilient sealing means comprises a first packing ring (8) located between the arc tube (1) and the electrode tube (2) and held in sealing relation by said clamping ring (4) and a sealing ring (15) located between the connecting ring (3) and the base assembly flange (5).
Claim 5
Dependent Claim
85 words
Lamp according to claim 3, wherein the axially extending connecting tubes (10, 10'') are sealed into the clamping ring (4); a metal sleeve (16) is provided for each connecting tube surrounding the respective tube and joining the respective connecting tube to the base assembly flange (5), one end of the sleeve bearing against the connecting ring (3) and the other end thereof bearing against the base assembly flange (5); and sealing means to seal said tubes to the ducts in the base assembly flange (5).
Claim 6
Dependent Claim
48 words
Lamp according to claim 1, further comprising two superposed sectional rings (6, 7) located between the flange of the arc tube (1) and the clamping ring (4), one of said sectional rings (6) being of metal and the other of said sectional rings (7) being of resilient material.
Claim 7
Dependent Claim
34 words
Lamp according to claim 1, further comprising cover means (12) secured to the base assembly, the resilient sealing means (13) sealing the cover means to the duct means (11) in the clamp ring (4).
Claim 8
Dependent Claim
46 words
Lamp according to claim 6, wherein the clamp ring (4) is formed with a circumferential groove to provide said duct means therein, the resilient sealing means (13) comprising a sealing ring located beneath the cover means (12) and sealing said groove (11) against the cover means.
Claim 9
Dependent Claim
13 words
Lamp according to claim 6, wherein the cover means is a two-part cover.
Claim 10
Dependent Claim
19 words
Lamp according to claim 8, further comprising a tubular jacket (26) securing the parts of the cover means together.
Claim 11
Dependent Claim
29 words
Lamp according to claim 1, wherein at least some of the resilient means comprises a resilient plastic material having a continuous temperature tolerance of up to about 200* C.
Claim 12
Dependent Claim
22 words
Lamp according to claim 1, wherein the lamp is a discharge lamp of power input of between 10 kW to 30 kW.
Claim 13
Dependent Claim
15 words
Lamp according to claim 1, wherein the lamp is a high pressure xenon discharge lamp.
Claim 14
Dependent Claim
20 words
Lamp according to claim 1, wherein the cooling fluid is a liquid and the ducts are dimensioned for liquid flow.
Claim 15
Dependent Claim
99 words
Lamp according to claim 1, wherein the axially extending connecting tubes (10, 10'') are sealed into the clamping ring (4); the clamping ring being formed with a circumferential groove (11) to provide said duct means tHerein, said groove communicating with said axially extending connecting tubes to provide fluid flow from a tube (10) through at least a portion of the circumferential groove (11) and out another axially extending tube (10''); and separable sealing means (16, 17) are provided sealing said tubes to the base assembly flange (5) in position to communicate with said laterally extending duct means (2, 22'').
References Cited (Backward Citations)
US3366814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |