Variable Audio Output Buzzer Having a Seal for Protection Against Contamination During Processing
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02
A variable audio output buzzer includes a housing having a rotatable cap thereon. The cap has a varying width slot therein for cooperating with an audio output port in the housing to vary the sound level from the buzzer. The cap also has a projection for disposition within the audio output port in the housing during processing to seal the audio output port to prevent contamination during processing. A buzzer housing 1 has a retaining ring 2 molded in its top. The retaining ring 2 has an audio output port 3. During processing (solder and water wash), the audio output port 3 is closed by a projection 4 (Fig. 2) extending downwardly from a bottom surface 5 of a cap 6, which fits over the retaining ring 2 (Fig. 1). This prevents contamination of the buzzer within the housing 1 during such processing.