Class 337/20 - With significant housing or casing structure

Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter relating to a device under the definition
No. of patents: 3
Last issue date: 02/18/2003

Number	Title	Issue Date
6522235	Switch structure for a heating device A switch structure for a heating device having a passage formed within the main body of the structure, an air inlet, a main flame air outlet, a second air outlet and a thermocouple insertion hole connected to the passage being formed on the main body, and...	02/18/2003
6157286	High voltage current limiting device A high voltage, current limiting device is connected in series with a high voltage power source and a protected load to interrupt current for an over-current condition [Typically 50 kA]. The current limiting device includes a current sensor/isolator and a...	12/05/2000
4679113	Electrical distribution apparatus having draw-out surge arrester Electrical distribution apparatus, such as a pad-mounted electrical distribution transformer, which has an electrically grounded tank or casing. A surge arrester assembly includes a housing, and a draw-out surge arrester having first and second insulative...	07/07/1987

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