Fan

Abstract

A fan has a first air outlet arm and a second air outlet arm, wherein the second air outlet arm is rotatable with respect to the first air outlet arm.

1 . A fan comprising:
 (a) an air inlet;   (b) a first air outlet section comprising at least one first air outlet wherein the fan is operable with the at least one first air outlet in fluid flow communication with the air inlet;   (c) a second air outlet section comprising at least one second air outlet, wherein the second air outlet section is rotatable with respect to the first air outlet section and wherein the fan is operable with the at least one second air outlet in fluid flow communication with the air inlet; and,   (d) air moving member provided in an air flow path extending downstream from the air inlet.   
     
     
         2 . The fan of  claim 1  wherein the air moving member is concurrently in fluid flow communication with the first air outlet section and the second air outlet section. 
     
     
         3 . The fan of  claim 1  wherein the air moving member is selectively connectable in fluid flow communication with the first air outlet section and the second air outlet section. 
     
     
         4 . The fan of  claim 1  wherein a fan axis extends centrally through the first air outlet section and the second air outlet section and each of the first air outlet section and the second air outlet section are individually rotatable about the fan axis. 
     
     
         5 . The fan of  claim 1  wherein a fan axis extends centrally through the first air outlet section and the second air outlet section and the second air outlet section is individually rotatable about the fan axis. 
     
     
         6 . The fan of  claim 5  wherein the at least one first air outlet comprises a plurality of outlet ports. 
     
     
         7 . The fan of  claim 6  wherein the plurality of outlet ports are angularly spaced apart around the fan axis. 
     
     
         8 . The fan of  claim 6  wherein at least some of the plurality of outlet ports comprise divergent nozzles. 
     
     
         9 . The fan of  claim 6  wherein at least some of the plurality of outlet ports comprise convergent nozzles. 
     
     
         10 . The fan of  claim 6  wherein each outlet port has a cross section flow area in a direction transverse to a direction that air exits the particular outlet port and the cross section flow area of at least some of the outlet ports is adjustable. 
     
     
         11 . The fan of  claim 5  wherein the at least one first air outlet comprises an angularly extending slot. 
     
     
         12 . The fan of  claim 11  wherein the angularly extending slot has a cross section flow area in a direction transverse to a direction that air exits the angularly extending slot and the cross section flow area of the angularly extending slot is adjustable. 
     
     
         13 . The fan of  claim 1  wherein the fan is a portable fan and further comprises a lower end comprising a base that is free standing on a floor. 
     
     
         14 . The fan of  claim 13  wherein the base has the air inlet. 
     
     
         15 . The fan of  claim 14  wherein the base houses the air moving member. 
     
     
         16 . The fan of  claim 1  wherein a central section is positioned between the first air outlet section and the second outlet section, a fan axis extends centrally through the first air outlet section, the central section and the second air outlet section, the first air outlet section has a first air outlet section inner end positioned adjacent the central section and a first air outlet section outer end axially spaced from the first air outlet section inner end, the second air outlet section has a second air outlet section inner end positioned adjacent the central section and a second air outlet section outer end axially spaced from the second air outlet section inner end. 
     
     
         17 . The fan of  claim 16  wherein each of the first air outlet section and the second air outlet section are rotatable about the fan axis. 
     
     
         18 . The fan of  claim 17  wherein the fan is a portable fan and further comprises a lower end comprising a base that is free standing on a floor and a support extends from the base to the central section. 
     
     
         19 . The fan of  claim 18  wherein the central section is rotatable mounted to the support. 
     
     
         20 . The fan of  claim 19  wherein the central section has a central section axis that extends through the support from a lower end of the support to an upper end of the support and the central section and the central section is rotatable mounted about an axis that is transverse to the support axis and the fan axis. 
     
     
         21 . The fan of  claim 19  wherein the central section has an absence of an air outlet from the fan. 
     
     
         22 . The fan of  claim 19  wherein the central section connects each of the first air outlet section and the second outlet section in fluid flow communication with the air moving member. 
     
     
         23 . The fan of  claim 22  wherein the air moving member is provided in the base. 
     
     
         24 . The portable fan of  claim 18  wherein the support member comprises an upflow conduit. 
     
     
         25 . The portable fan of  claim 24  wherein the support member has a height that is telescopically adjustable. 
     
     
         26 . The fan of  claim 16  wherein the first outlet section is a first arm member comprising a first outlet conduit extending from the first air outlet section inner end to the first air outlet section outer end having a first axially extending outlet slot provided at an outlet side of the outlet conduit, the second outlet section is a second arm member comprising a second outlet conduit extending from the second air outlet section inner end to the second air outlet section outer end having a second axially extending outlet slot provided at an outlet side of the outlet conduit wherein each of the first air outlet section inner end and the second air outlet section inner end are in fluid flow communication with the central section. 
     
     
         27 . The fan of  claim 26  wherein each of the first axially extending outlet slot and the second axially extending outlet slot is subdivided into a plurality of air outlets.