Humidifier assemblies

A removable humidifier subassembly comprising a frame having front and side members, generally parallel upper and lower rollers extending between said side members, motor means on the outer side of one of the side members for driving the upper roller, means in the lower ends of the side members mounting the ends of the lower roller for free rotation, an endless pad of water pickup material mounted on said rollers and adapted to be driven by the motor operated upper roller, said front member being apertured sufficiently to allow passage of air therethrough and through the pad intermediate said rollers, and laterally outwardly extending slide members on the upper end of said frame adapted for removably mounting the subassembly in a housing, said upper roller having one end adapted for drive connection to said motor means, a coaxial bushing mounting the motor connected end of the roller and a leaf spring carrying said bushing whereby said bushing is spring biased toward that other end of the roller.

A humidifier assembly comprising a housing having a front wall mounting a motor driven fan within the housing and having a rear opening, mounting means on said housing adapted for removably mounting said housing on a plenum or the like having an opening for operative register with said housing rear opening, a water reservoir on the lower end of said housing, a frame carrying a motor driven porous water pickup pad, and means whereby said frame may be slidably inserted into said housing into operative location through said rear opening so that said pad is registered with said openings and has its lower end immersed in water in said reservoir, said frame being removable from the housing only through said rear opening so that said frame is not accessible for removal from the housing except when the entire housing is removed from said plenum or the like, said housing being also open at its lower end, and said water reservoir being a pan-like member having means whereby it may be independently slidably inserted into guide means at the lower end of said rear housing opening to be disposed in covering relation to said bottom opening and in operative association with said pad, said member being also non-accessible for removal from the housing except when the entire housing is removed from said plenum or the like.