Abstract A method of dosing an incandescent lamp with predetermined amounts of halogen and inert fill gas. The lamp and an interconnecting chamber are evacuated. A common chamber contains a mixture of halogen and inert gas at predetermined partial pressures. The halogen and fill gas are simultaneously transported from the common chamber to the lamp and interconnecting chamber to establish predetermined partial pressures of halogen and inert gas in the lamp and interconnecting chamber. The lamp is then cooled below the condensation point of the halogen to condense the halogen in the lamp, and the cooling of the lamp also causes an increased amount of the fill gas to be dosed into the lamp. The lamp is then sealed off from the interconnecting chamber.
Inventors
👤 Francis A Beane
👤 Jack Martin
👤 James J Palermo
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-29 16:55
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; H01J9/395
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
The method as specified in claim 1 wherein: said envelope is connected to said interconnecting chamber via a valved conduit which is initially closed so that said halogen and fill gas are initially transported into said interconnecting chamber; and after said envelope has been cooled, the said valved conduit connecting the envelope and interconnecting chamber is opened so that the halogen and fill gas in said interconnecting chamber flow into the cooled envelope.
Claim 2
Dependent Claim
20 words
The method as specified in claim 1, wherein said cooling temperature is below the condensation point of said fill gas.
Claim 3
Dependent Claim
22 words
The method as specified in claim 1, wherein said halogen is maintained at a temperature below the boiling point of said halogen.
Claim 4
Dependent Claim
40 words
The method as specified in claim 1 wherein said cooling temperature is such that the amount of fill gas transported into the cooled envelope provides greater than one atmosphere of fill gas partial pressure in said lamp at ambient temperature.
Claim 5
Dependent Claim
34 words
The method as specified in claim 1, wherein said halogen is iodine, and said iodine is condensed in said lamp in an amount of from 0.1 to 1.0 micromole per cc. of lamp volume.
Claim 6
Dependent Claim
36 words
The method as specified in claim 1, wherein said fill gas is argon and said argon is condensed in said lamp in an amount providing a partial pressure of about 2 1/2 atmospheres at ambient temperature.
Claim 7
Dependent Claim
74 words
The method as specified in claim 1 wherein; said common source of halogen and fill gas comprises a second chamber that contains a nonvaporized supply of said halogen and is connected by a valved conduit to a pressurized supply of said fill gas, and said second chamber is heated to a temperature which provides a predetermined mixture of fill gas and vaporized halogen for subsequent transportation into the evacuated interconnecting chamber and lamp envelope.