| 摘要 |
<p>A sprayer of a kind to deliver a liquid to be sprayed through a user held delivery wand for application of the liquid spray to a surface, the sprayer comprising a first reservoir, a second reservoir to contain an additive, a first pump to transfer a controlled amount of the additive from the second reservoir to the first reservoir, a second pump to transfer a controlled amount of the carrier liquid to the first reservoir, the first pump and the second pump simultaneously controllable to ensure that a proportional amount of the carrier liquid to the additive, are transferred to the first reservoir for mixing together in the first reservoir, wherein the first reservoir includes an outlet in fluid connection with the delivery wand to allow the dispensing of additive containing carrier liquid.</p> |
