Tilt switch employing graphite

Details Tilt switch employing graphite Tilt switch employing graphite

2011-05-03

2011-05-03

Johnson, Amy Cohen (Department: 2841)

Geometrical instruments

Indicator of direction of force traversing natural media

Structurally installed including relation to feature thereof

C033S366110, C033S366240, C200S06145M, C200S061520

Reexamination Certificate

active

07934321

ABSTRACT:
The invention relates to a form of a tilt switch that solves the problem of poor electrical contact, excessive/unpredictable hysteresis, high contact resistance, short life and/or electrical bounce. The tilt switch uses conventional ball-in-tube construction and adds a graphite powder film to all electrically conductive surfaces in the switch. This non-mercury tilt switch provides additional features such as enhanced electrical contact, reduced or eliminated hysteresis, lowered contact resistance, increased contact life and eliminates electrical bounce.

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