Patent ID: 8061629
Filing Date: 2011-11-22
Classification: A45D,B05B,G10K

Abstract:
1. A spray device comprising: a piezoelectric element, a sonotrode comprising a base coupled to the piezoelectric element and a horn tube narrower than the base extending along a longitudinal axis from the base to a horn mouth that is wider than the horn tube, said horn mouth having a front face directed away from the horn tube, a control circuit designed to cause the piezoelectric element to vibrate, and a feed device for feeding product that is to be sprayed, this feed device being designed to carry the product that is to be sprayed as far as the front face of the horn mouth, the sonotrode vibrating in a mode parallel to the longitudinal axis, the horn mouth being sized to move essentially along said longitudinal axis without flexing when the control circuit causes the piezoelectric element to vibrate, wherein the piezoelectric element and the horn tube have diameters that are such that the ratio of the diameter of the piezoelectric element to the diameter of the horn tube lies between 5 and 10, and wherein the feed device comprises a wick with one end in contact with the horn mouth of the sonotrode.