Communications: electrical – Land vehicle alarms or indicators – External alarm or indicator of movement
Patent
1995-03-17
1995-12-05
Crosland, Donnie L.
Communications: electrical
Land vehicle alarms or indicators
External alarm or indicator of movement
3403924, 3403925, 3403951, 340692, 340429, 340689, 3403921, 200 6145R, 200 6152, 200 52A, 362806, G08B 300
Patent
active
054733073
ABSTRACT:
Transducer apparatus (10) responsive to external perturbations is disclosed having an electrically responsive transducer circuit (12) energized when a display member (18) and an elongate member (20) move from a gravity determined quiescent orientation (30A) therebetween to an external perturbation driven activate orientation (30B) therebetween. In various embodiments, the members are respectively responsive to air movement and acceleration. In one embodiment, the elongate member carries a first electrical contact (21) to abut a second electrical contact (22) carried by the display member.
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"New! Electronic Wind Chimes", p. 139, Radio Shack, 1993 Catalog, Sep. 1992.
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