Boots – shoes – and leggings – Boots and shoes – Heated
Patent
1995-03-01
1996-03-05
Sewell, Paul T.
Boots, shoes, and leggings
Boots and shoes
Heated
36137, 219211, A43B 704
Patent
active
054956820
ABSTRACT:
A dynamoelectric shoe includes a shoe sole having a heel portion formed with a compartment unit, a pressure-operated electric generator unit provided inside the compartment unit, and a rechargeable battery unit. The electric generator unit includes a hollow base, a pivot plate mounted pivotally in the hollow base, a volute spring biasing the pivot plate so as to position normally the latter in an upwardly inclining position, a driving gear secured to the pivot plate, a unidirectional gear set meshing with the driving gear, a speed increasing gear set driven rotatably by the unidirectional gear set, a press plate having a rear end mounted pivotally on an open top of the hollow base and a front end provided with a push plate which extends into the open top of the hollow base and which abuts against the pivot plate, and an alternator unit which has a rotor drive shaft that is driven by the speed increasing gear set. The alternator unit produces a voltage signal when the rotor drive shaft rotates due to repeated application of pressure on the press plate during use. The rechargeable battery unit is connected electrically to the alternator unit and includes an electrical socket mounted on the shoe sole. The rechargeable battery unit is charged by the voltage signal from the alternator unit.
REFERENCES:
patent: 1506282 (1924-08-01), Barbieri
patent: 4507877 (1985-04-01), Vaccari et al.
patent: 4674199 (1987-06-01), Lakic
patent: 4697359 (1987-10-01), Balbinot
patent: 4780968 (1988-11-01), Bragagnolo
patent: 4782602 (1988-11-01), Lakic
patent: 4837494 (1989-06-01), Maier
patent: 4845338 (1989-07-01), Lakic
patent: 4941271 (1990-07-01), Lakic
patent: 5167082 (1992-12-01), Chen
Kavanaugh Ted
Sewell Paul T.
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