Patent ID: 8217574
Filing Date: 2012-07-10
Classification: H01K

Abstract:
1. A lamp, comprising: a transparent housing; a filament disposed in the housing, the filament having a main body disposed between a first end and a second end of the filament; a first conductor coupled to the filament at the first end of the filament; a first interceptor bar disposed in the housing and beneath the main body of the filament, wherein the first interceptor bar is coupled to the second end of the filament; a second interceptor bar disposed in the transparent housing and beneath the main body of the filament; a fuse element coupling the second interceptor bar to the first conductor proximate the first end of the filament, wherein the second interceptor bar is electrically floating during normal operation of the lamp; and a second conductor disposed proximate the first end of the filament and conductively coupled to the second end of the filament via the first interceptor bar, wherein the first interceptor bar is positioned such that an electrical short forms between the first and second conductors when the main body of the filament contacts the first interceptor bar.