Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
197 words
A gas-discharge illumination device comprising at least two glass plates said plates being hermetically sealed to provide at least one electrical gas discharge channel cut into at least one of the said glass plates said plates being hermetically sealed to provide at least one electrical gas discharge channel cut into at least one of the said glass plates, said channel being provided with evacuation and gas filling means and further supplied with at least two electrodes contained integrally within the body of said glass plates in electrode chambers which communicate with the said gas discharge channel, said electrodes being further supplied with thermal insulation means such that the the thermal resistance afforded to the flow of heat from the said electrodes to the glass plates per unit area is at least 5 degrees centrigrade/watt/square centimeter and provided further that the current supplied to the electrodes is less than 40 milliamperes but more than 1 milliampere and the voltage at which this current is supplied is less than 18,000 volts but more than 1000 volts and furthermore provided that the gas pressure in the electrical gas discharge channel is less than 35 millitorr but more than 1 millitorr.
Claim 2
Dependent Claim
197 words
A gas-discharge illumination device comprising at least two glass plates said plates being hermetically sealed to provide at least one electrical gas discharge channel cut into at least one of the said glass plates said plates being hermetically sealed to provide at least one electrical gas discharge channel cut into at least one of the said glass plates, said channel being provided with evacuation and gas filling means and further supplied with at least two electrodes contained integrally within the body of said glass plates in electrode chambers which communicate with the said gas discharge channel, said electrodes being further supplied with thermal insulation means such that the the thermal resistance afforded to the flow of heat from the said electrodes to the glass plates per unit area is at least 5 degrees centrigrade/watt/square centimeter and provided further that the current supplied to the electrodes is less than 40 milliamperes but more than 1 milliampere and the voltage at which this current is supplied is less than 18,000 volts but more than 1000 volts and furthermore provided that the gas pressure in the electrical gas discharge channel is less than 35 millitorr but more than 1 millitorr.
Claim 3
Dependent Claim
34 words
An illumination device as described in claim 1 wherein the said electrodes are further provided with one or more infrared emissive coatings such that the average emissivity of the electrode is at least 0.4.
Claim 4
Dependent Claim
20 words
An illumination device as described in claim 1 wherein the thickness of the illumination device is less than one inch.
Claim 5
Dependent Claim
20 words
An illumination device as described in claim 1 wherein the thickness of the illumination device is less than one-half inch.
Claim 6
Dependent Claim
50 words
An illumination device as described in claim 1 wherein the said thermal insulation means is compressible and of such a thickness that after being hermetically sealed the said electrode chambers are bulged in an outward direction away from the body of the said illumination device on at least one side.
Claim 7
Dependent Claim
29 words
An illumination device as described in claim 5 wherein the said electrodes are are further provided with an infrared emissive coating having an infrared emissivity of at least 0.4.
Claim 8
Dependent Claim
19 words
An illumination device as described in claim 5 wherein the said glass plates are less than one inch thick.
Claim 9
Dependent Claim
19 words
An illumination device as described in claim 5 wherein the said glass plates are less than one-half inch thick.