Class 337/138 - Cyclically or periodically operated (e.g., flasher)

Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter wherein the structure is specifically recited
No. of patents: 3
Last issue date: 08/21/2001

Number	Title	Issue Date
6278619	Circuit breaker for low voltage alternating electric installation The invention concerns a disconnecting appliance, such as a switch, a fuse-disconnecting switch or breaker-reversing switch, having a novel arrangement of fixed and moving contacts promoting contact surface self-cleaning and increasing contact force for t...	08/21/2001
4184136	Fast acting thermal relay A snap-action thermal relay in which a thin sheet of spring material having a central opening is mounted at one point along one edge and is crimped along an adjacent edge to distort the sheet into a slightly convex bowed shape. A heater element in the for...	01/15/1980
3953817	Flasher device A flasher device includes a terminal with an inner extension carrying a stationary contact thereon, the extension supporting a conductive heat responsive means connected to another terminal of the device and having a movable contact thereon, an insulating...	04/27/1976

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