ELECTRIC INCANDESCENT LAMPS (details or apparatus or processes for manufacture applicable to both discharge devices and incandescent lamps H01J; light sources using a combination of incandescent and other types of light generation H01J61/96, H05B35/00; circuits therefor H05B)

Definition statement

This subclass/group covers:

• Sources of visible, ultra-violet or infra-red radiation consisting of one or more bodies heated to incandescence by electricity, i.e. incandescent lamps, including such lamps for purposes other than general lighting.
• Details of electric incandescent lamps, including ancillary devices that are structurally part of the lamp such as optical light modifiers or circuit elements.
• Apparatus or processes adapted to the manufacture, installing, removal or maintenance of incandescent lamps or parts thereof.

References relevant to classification in this subclass

This subclass/group does not cover:

Details or apparatus or processes for manufacture applicable to both discharge devices and incandescent lamps	H01J
Light sources using a combination of incandescent and other types of light generation	H01J 61/96, H05B 35/00
Lamps with spaced electrodes heated to incandescence by light-emitting discharge, e.g. tungsten arc lamps	H01J 61/98
Circuits therefor	H05B 39/00

Functional features or details of lighting devices or systems thereof	F21V
Structural combinations of lighting devices with other articles, not otherwise provided for	F21V 33/00
Incandescent filaments used to form characters in indicating arrangements	G09F 9/307

Informative references

Attention is drawn to the following places, which may be of interest for search:

Chemical, physical processes and apparatus using radiation	B01J 19/08
Chemical, physical processes and apparatus using IR-light	B01J 19/128
Heating devices using lamps	H05B 3/0033
Infrared halogen lamps for cooking plates	H05B 3/744
Heating elements made of non-metallic materials	H05B 3/14
Heating elements made of ceramic materials, oxides, carbides	H05B 3/141
Drying using infrared radiation	F26B 3/30
Displays using incandescent lamps	G09F 9/307

Special rules of classification within this subclass

• If no respective subgroup exists.
• If the general idea is relevant for the higher hierarchy as well as all the respective subgroups.

Glossary of terms

In this subclass/group, the following terms (or expressions) are used with the meaning indicated:

Lamp	includes tubes emitting ultra-violet or infra-red light

Details

Definition statement

This subclass/group covers:

Informative references

Attention is drawn to the following places, which may be of interest for search:

Details applicable to both incandescent and discharge lamps	H01J 5/00

Lamp stems (seals for leading conductors there through H01K1/38)

References relevant to classification in this group

This subclass/group does not cover:

Seals for leading-in conductors	H01K 1/38

Screens; Filters (associated with envelope H01K1/28)

Definition statement

This subclass/group covers:

References relevant to classification in this group

This subclass/group does not cover:

Screens or filters structurally associated with the envelope	H01K 1/28

Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof (manufacture of vessels from glass C03B)

References relevant to classification in this group

This subclass/group does not cover:

Apparatus and processes for manufacture applicable to both discharge devices and incandescent lamps	H01J 9/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Manufacture of vessels from glass	C03B 3/00

Lamps for general lighting (H01K9/00 to H01K13/00 take precedence)

Definition statement

This subclass/group covers:

• Household lamps.
• Lamps for illumination of shops or public areas.

References relevant to classification in this group

This subclass/group does not cover:

Lamps for purposes other than general lighting	H01K 7/00
Lamps having two or more incandescent bodies separately heated	H01K 9/00
Lamps having an incandescent body which is not conductively heated, e.g. heated inductively, heated by electronic discharge	H01K 11/00
Lamps having an incandescent body which is substantially non-conductive until heated, e. g. Nernst lamp	H01K 13/00

Lamps for purpose other than general lighting (H01K9/00 to H01K13/00 take precedence)

Definition statement

This subclass/group covers:

• Lamps for cinematographic projectors.
• Lamps for automobile headlights intended to be used with projection systems.
• Lamps for indicating or for decorative purposes.
• Infrared or heater lamps.

References relevant to classification in this group

This subclass/group does not cover:

Lamps for general lighting	H01K 5/00
Lamps having two or more incandescent bodies separately heated	H01K 9/00
Lamps having an incandescent body which is not conductively heated, e.g. heated inductively, heated by electronic discharge	H01K 11/00
Lamps having an incandescent body which is substantially non-conductive until heated, e. g. Nernst lamp	H01K 13/00

for producing a narrow beam of light; for approximating a point like source of light, e.g. for searchlight, for cinematographic projector (producing narrow beams by optical means external to lamp F21)

References relevant to classification in this group

This subclass/group does not cover:

Producing narrow beams by optical means external to the lamp	F21V

Lamps having two or more incandescent bodies separately heated H01K11/00, H01K13/00 take precedence)

References relevant to classification in this group

This subclass/group does not cover:

Lamps having an incandescent body which is not conductively heated, e.g. heated inductively, heated by electronic discharge	H01K 11/00
Lamps having an incandescent body which is substantially non-conductive until heated, e. g. Nernst lamp	H01K 13/00

Lamps having an incandescent body which is not conductively heated, e.g. heated inductively, heated by electronic discharge (H01K13/00 takes precedence)

References relevant to classification in this group

This subclass/group does not cover:

Lamps having an incandescent body which is substantially non-conductive until heated	H01K 13/00

Lamps having an incandescent body which is substantially non-conductive until heated, e.g. Nernst lamp