Internal contact for a charging circuit

Details Internal contact for a charging circuit Internal contact for a charging circuit

1989-01-09

1990-08-14

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15344, 15DIG1, 320 2, A47L 928

Patent

active

049475142

ABSTRACT:
The present invention is a vacuum cleaner recharging assembly. The assembly includes a vacuum cleaner having a motor, a housing enclosing the motor, a fan driven by the motor for producing a vacuum, and a canister for at least the reception of foreign matter and air drawn into the canister in response to the vacuum produced by the fan. The vacuum cleaner has a power source for powering the motor and electrical wiring interconnecting the motor and the power source. The assembly also includes a charging unit cooperable with the vacuum cleaner for charging the power source. The assembly further includes circuitry for disconnecting the flow of electrical power from the power source to the motor when the vacuum cleaner and the charging unit are operatively engaged to allow optimum charging of the power source.

REFERENCES:
patent: 4209875 (1980-07-01), Pugh et al.
patent: 4306558 (1981-12-01), Kurtz et al.
patent: 4421964 (1983-12-01), Buchtel
patent: 4542557 (1985-09-01), Levine
patent: 4573234 (1986-03-01), Kochte et al.
patent: 4610048 (1986-09-01), Ishihara et al.
patent: 4665582 (1987-03-01), Richmond et al.
patent: 4670701 (1987-06-01), Sako et al.

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