(under subclass 26) Discharged devices provided with a ventilator, fume director and/or a fume condenser.
(1) Note. A mere baffle to prevent the fumes from flowing into contact with the electrode moving mechanism is not considered to be a fume director within the meaning of the definition of this subclass, but a conduit to carry the fumes and to prevent the circulation of the fumes around the electrode moving mechanism is considered to be a fume director within the meaning of the definition of this subclass.
(2) Note. This subclass includes casings placed only about
the electrode moving mechanism and provided with ventilating means, but where the casing is an enclosure for the entire discharge device, see the Search Notes below.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices,
20, 33 and 34 for discharge devices which are inclosed within a sealed envelope and which are provided with an internal temperature modifying baffle or a condensing chamber or surface to cool the vapors within the envelope. 362, Illumination,
21, 22, 159, 183, 198, 261-265, 276, 294, 367, and 373, where the casing is an enclosure for the entire discharge device.
454, Ventilation, appropriate subclasses, for apparatus for supplying air to or removing it from enclosures.
