Vacuum cleaner with optical sensor

Details Vacuum cleaner with optical sensor Vacuum cleaner with optical sensor

1997-02-25

1998-10-13

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

15319, 356438, A47L 928

Patent

active

058193677

ABSTRACT:
A vacuum cleaner comprises a dust sensor having a light emitting device and a light receiving device which devices are provided at predetermined positions of a suction nozzle or a suction pipe in a condition that both devices are opposite to one another in a direction which crosses a dust suction direction by a predetermined angle. A spacer member is positioned at a predetermined accurately position the suction nozzle or the suction pipe by an engagement of with respect to a second projection member and a second concave section, and each device is positioned accurately relative to the spacer member by an engagement of a first concave section and a first projection member.

REFERENCES:
patent: 3816004 (1974-06-01), Bignardi
patent: 4937912 (1990-07-01), Kurz
patent: 5163202 (1992-11-01), Kawakami et al.
patent: 5182833 (1993-02-01), Yamaguchi et al.
patent: 5319827 (1994-06-01), Yang
patent: 5542146 (1996-08-01), Hoekstra et al.

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