Title:
A METHOD OF PRODUCING AN APERTURE PLATE FOR A NEBULIZER
Document Type and Number:
WIPO Patent Application WO/2013/186031
Kind Code:
A3
Abstract:
A photo-resist (21) is applied in a pattern of vertical columns having the dimensions of holes or pores of the aperture plate to be produced. This mask pattern provides the apertures which define the aerosol particle size, having up to 2500 holes per square mm. There is electro-deposition of metal (22) into the spaces around the columns (21). There is further application of a second photo-resist mask (25) of much larger (wider and taller) columns, encompassing the area of a number of first columns (21). The hole diameter in the second plating layer is chosen according to a desired flow rate.
Inventors:
HOGAN BRENDAN (IE)
Application Number:
PCT/EP2013/060803
Publication Date:
July 24, 2014
Filing Date:
May 24, 2013
Export Citation:
Assignee:
STAMFORD DEVICES LTD (IE)
International Classes:
C25D1/08; C25D3/50; B05B17/00; C25D3/56
Domestic Patent References:
| WO2011083380A1 | 2011-07-14 |
Foreign References:
| DE2050285A1 | 1972-05-25 | |||
| US4184925A | 1980-01-22 | |||
| US4379737A | 1983-04-12 | |||
| DE1948135A1 | 1971-04-01 | |||
| EP1199382A1 | 2002-04-24 | |||
| JPH11138827A | 1999-05-25 |
Attorney, Agent or Firm:
WELDON, Michael et al. (Third FloorDuncairn House,14 Carysfort Avenue, Blackrock County Dublin 01, IE)
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