Method and apparatus for spraying portions of an...

Details Method and apparatus for spraying portions of an... Method and apparatus for spraying portions of an...

2004-10-08

2010-02-23

Tran, Len (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With signals, indicators, recorders, meters or changeable...

Position or extent of motion indicator

C239S001000, C239S067000, C239S069000, C239S337000, C222S639000, C700S283000

Reexamination Certificate

active

07665673

ABSTRACT:
A method of spraying an air-improving substance in a room is provided. In particular, persons moving in the room are detected, and a spraying operation is performed while taking into account the detected movement.

REFERENCES:
patent: 5217035 (1993-06-01), Van Marcke
patent: 5377363 (1995-01-01), Shieh
patent: 6254065 (2001-07-01), Ehrensperger et al.
patent: 6267297 (2001-07-01), Contadini et al.
patent: 6347414 (2002-02-01), Contadini et al.
patent: 6739479 (2004-05-01), Contadini et al.
patent: 6938280 (2005-09-01), Wawrla et al.
patent: 2002/0036358 (2002-03-01), Watkins

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