Aerosol or spray device, spray nozzle unit and method of manufacturing the same

• Main Authors: NIJDAM WIETZE, VAN EGMOND HENRI, WISSINK JEROEN MATHIJN, DE KRUIJF WILHELMUS PETRUS JOHANNES, VAN RIJN CORNELIS JOHANNES MARIA
• Format: Patent
• Language: Chinese; English
• Published: 19.04.2017
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; NOZZLES; PERFORMING OPERATIONS; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

Spray device as well as a method for manufacturing a spray device, comprises assembling at least one spray nozzle plate (1) into a thermoplastic holder (2), while controlling the temperature of the spray nozzle plate (1) and/or the holder (2) and as a result at least locally plastically deforming the holder (2) permanently. After the thermoplastic deformation of a seat (5) of the holder (2), a diameter of the seat (5) of the holder (2) upstream of the spray nozzle plate (1) exceeds a diameter of the seat (5) of the holder (5) downstream of the nozzle plate (1). The thermoplastic holder may have a tapered seat, where the smallest cross section of the tapered seat is smaller than the spray nozzle plate, wherein the method may comprise: heating the spray nozzle plate; pressing the spray nozzle plate into the tapered seat of the holder by bringing the nozzle plate towards a smallest side of the tapered seat, thereby thermoplastically deforming a wall of the tapered seat; forming a spray device from an assembly of