| 摘要 |
Abstract Spraying Device and Method of Using Same A spraying device with a refill of fluid therein is described, wherein the refill comprises a body forming a reservoir for the fluid and a spray head located at the uppermost part of the refill in fluid communication with the reservoir, and wherein the device comprises a housing adapted to receive the refill therein and having an aperture suitable for permitting, in use, the spraying of the fluid from an exit orifice of the spray head therethrough, the device further comprising actuation means configured for periodic actuation of the refill, wherein the device is provided with detection means configured to distinguish between at least one area of lower reflectance and at least one area of relatively higher reflectance on the spray head of said refill, and wherein the device is provided with an end of life indication in the form of a counting mechanism that is triggered by the detection means distinguishing between at least one area of lower reflectance and at least one area of relatively higher reflectance on the spray head of the refill. Methods of operation of such a spraying device are also described. Fig. 3 22> |
