
{"publication_number": "US-2013320574-A1", "abstract": "a formula dispersing apparatus that increases the throw , volume and efficiency of formula distribution through aerodynamic surfaces is described . the shape of the ring airfoil in the utilization of the coand\u00e0 effect allows for efficient distribution of a formula or formula mixture into a defined space .", "application_number": "US-201313896835-A", "description": "the embodiment of the formula dispersing apparatus shown in fig1 depicts an formula dispersing assembly 100 that has a ring airfoil 101 and a body 102 . in this assembly , the external prop 103 supplies the moving air to disperse the formula and is freewheeling . the distributed formula is also contained in the body 102 before passing through the fan . the formula is thus entrained into the air stream that is distributed through the ring airfoil 101 . in the embodiment of the formula dispersing apparatus shown in fig2 , the formula dispersing apparatus 200 has fixed structures 202 that attach directly to the ring airfoil 201 . air and formula communicate from the base 205 though the distribution hub 203 to the ring airfoil 201 . the formula and air are then ejected through slots 204 in the ring airfoil 201 to the room environment . fig3 shows an embodiment of the formula dispersing apparatus with formula dispersing assembly 300 with just a ring airfoil 301 and a base 303 . the formula dispersing body contains a means for moving air , such as a bladed fan , intake slots 302 on the base 303 and a means of supplying the air flow from the fan to the ring airfoil such that the coand { hacek over ( a )