Vacuum cleaner

Details Vacuum cleaner Vacuum cleaner

1989-12-15

1991-12-31

Recla, Henry J.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15257B, A47L 700

Patent

active

050759221

ABSTRACT:
A vacuum cleaner for killing noxious small organisms trapped in a dust chamber of the cleaner body by circulating heated exhaust of an electric air blower through the dust chamber, the cleaner having a temperature sensing element for sensing a temperature in the dust chamber, a timer for timing a specified interval from a point of time when the electric air blower is started to kill the noxious small organisms with heat, and a microcomputer for stopping the supply of electric power to the electric air blower when a temperature sensed by the temperature sensing element reaches a temperature fatal to the noxious small organisms or when the timer has timed the specified interval with the sensed temperature being lower than the predetermined temperature.

REFERENCES:
patent: 4108143 (1978-08-01), Pelsue et al.
patent: 4654924 (1987-04-01), Getz et al.
patent: 4731898 (1988-03-01), Sovis et al.
patent: 4733431 (1988-03-01), Martin
patent: 4852208 (1989-08-01), Morishita et al.

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