Rechargeable cordless vacuum cleaner apparatus

Details Rechargeable cordless vacuum cleaner apparatus Rechargeable cordless vacuum cleaner apparatus

1985-11-18

1987-06-02

Perkey, W. B.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

15DIG1, H02J 700, A47L 900

Patent

active

046707018

ABSTRACT:
A rechargeable cordless vacuum cleaner apparatus includes a hand-held cordless vacuum cleaner containing rechargeable batteries, a motor, a fan driven by the motor and a dust-collection filter, and a charging unit containing a power transformer and rectifier diode, with the charging unit being formed with a pocket to removably retain the vacuum cleaner with charging terminals of the charging unit engaged in an electrical receptacle of the vacuum cleaner. Ribs or grooves are formed on an end of the vacuum cleaner which is inserted in the charging unit pocket, and these slidably engage with corresponding grooves or ribs formed on the charging unit, for accurate engagement. A microswitch on the vacuum cleaner acts to disconnect the batteries from a motor drive circuit and connect them to a charging circuit when the vacuum cleaner is inserted in the charging unit.

REFERENCES:
patent: 3348116 (1967-10-01), Freeman et al.
patent: 3840795 (1974-10-01), Roszyk et al.
patent: 4225814 (1980-09-01), Gantz et al.
patent: 4573234 (1986-03-01), Kochte et al.
patent: 4591777 (1986-05-01), McCarty et al.

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