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US 6,604,422 B2Granted
Vibration sensor device
OwnerJung-Tsung Weiinventor
Life of this patent
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Abstract
A vibration sensor device includes a hollow casing having a plurality of protrusions extending from an inner periphery of the casing. A ball is received in the casing and located in contact with at least three of the protrusions. The ball freely rolls when the casing senses vibration and the ball contacts different protrusions when it rolls so as to activate a cooperated warning device.
Claims12
A vibration sensor device comprising:
- a hollow casing having a plurality of protrusions extending from an inner periphery of said casing, and
- a ball received in said casing and located in contact with at least three of said protrusions.
Dependencies are inferred from the claim text.