Communications: electrical – Land vehicle alarms or indicators – For bicycle
Patent
1991-02-19
1992-01-21
Ng, Jin F.
Communications: electrical
Land vehicle alarms or indicators
For bicycle
340391, B62J 300
Patent
active
050831089
ABSTRACT:
A warning device for incorporation in the handle-bar of a bicycle has a casing with a tubular portion and a head portion. The tubular portion fits inside the end of the handle-bar while the head portion abuts the end of the handle-bar. A flat spring member with an arc-like configuration extends longitudinally outside the tubular portion to engage the inside of the handle-bar and retain the casing in its installed position. There is a battery cell within the tubular portion as well as circuitry. A piezoelectric transducer mounted inside the head portion is connected to the circuitry to form an oscillatory circuit. A switch is mounted externally of the head portion, preferably extending back over the end of the handle-bar. One side of the switch is connected through the spring member to one side of the cell and the other side of the switch is connected to the oscillatory circuit. Closing of the switch supplies power to the oscillatory circuit causing the transducer to generate a warning sound.
REFERENCES:
patent: 2416160 (1947-02-01), Davidsson
patent: 2469944 (1949-05-01), Bauters
patent: 2603701 (1952-07-01), Schadel, Jr.
patent: 4623954 (1986-11-01), Schott et al.
patent: 4716502 (1987-12-01), Scott et al.
patent: 4779169 (1988-10-01), Cruze
patent: 4875142 (1989-10-01), Spector
patent: 4915054 (1990-04-01), Vidovic et al.
Adams Thomas
Ng Jin F.
Tumm Brian R.
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