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US 5,314,372 AGranted
Simulated engine with sound generator
OwnerFred J. Kramerinventor
Life of this patent
Estimating the term…
Abstract
A battery and generator operated electro-mechanical device looks like an engine and emits engine sounds. The engine attaches to a bicycle frame giving the bicycle the appearance of being a motor bike. The engine makes an authentic idle sound when first started up and sounds like an engine accelerating to full throttle as the bike is pedalled. In a second embodiment, a fully mechanical engine sound is produced whenever the bike is in motion. Both embodiments are housed in an authentic looking engine housing.
Claims4
A toy sound generator to simulate engine sounds for mounting on a bicycle comprising,
- a) a hollow engine shell with mounting means, said mounting means attachable to frame elements of a bicycle,
- b) batteries in circuit with an audio oscillator and a sound transducer, said batteries, oscillator and transducer located in said shell,
- c) circuit modulation means comprising a bike generator driving a light means which drives a photocell, output from said photocell directed to said audio oscillator,
- d) attachment means to connect said generator to said light means,
- e) said audio oscillator comprising a resistor-capacitor network providing sound signals to said sound transducer, said oscillator modulated by said bike generator as that bicycle said sound generator is mounted upon is caused to move by a user.
2 more elements
Dependencies are inferred from the claim text.