Abstract: A simple yet effective system for cleaning fans and air circulators facilitates the cleaning of ceiling and hard-to-reach units without having to remove the blades or other parts to be cleaned. A flexible bag encloses parts of a fan to be cleaned. A source of compressed air is used for inflating the bag, and a source of vacuum is used for collecting particulates used for cleaning. A user-controlled nozzle is used for spraying particulates against parts of the fan to be cleaned. The user-controlled nozzle terminates in a narrow tube operative to puncture the bag, which is preferably a transparent plastic bag. The source of compressed air and the source of vacuum may share a common vacuum unit with particulate filter such as a “shop-vac” type of equipment. The particulates used for cleaning may include any suitable abrasive though, in the preferred embodiment, granulated walnut or other nut shells are used. In contrast to devices that clean with liquids, the enclosure may envelope the motor and blades.

Abstract: The invention pertains to a clutch for an oscillating fan wherein the clutch may be preadjusted for producing various degrees of oscillation, but will automatically adjust to a lesser degree of oscillation if the fan movement is restrained due to the fan's encounter with a stationary object. If necessary, the fan oscillation will automatically adjust to 0° oscillation if a severe obstruction is encountered.

Abstract: A barrel fan for the heavy duty circulation of air at the floor level consisting of a cylindrical tubular housing having a guarded rotating propeller blade therein. The blade is driven by a belt connected to an electric motor located on the lower exterior portion of the housing preferably shielded by a skirt in ventilating communication with the housing interior for motor cooling purposes. The motor is pivotally mounted and a spring interposed between the motor and housing maintains the tension within the belt.

Abstract: An air circulating fan wherein the fan components are shipped disassembled. All of the fasteners used to assemble the fan components may be operated without tools, utilizing thumb screws and the like wherein the fan is capable of a “toolless” assembly. A hand operated fan mounting clamp includes a safety device to prevent loosening due to vibration.

Abstract: A mister for use with fans having blades protected by a guard wherein the mister is mounted on the guard and through a plurality of water atomizing nozzles projects a mist into the fan airflow to produce a cooling effect by the evaporation of the moist air. The mister may be used with original equipment fans, or may be retrofitted to existing guarded fans and economically produces a distribution of water particles within the airflow.

Abstract: The invention pertains to a universal bracket for mounting a fan motor assembly upon a support structure. The universal bracket consists of a plurality of low cost fabricated components and incorporates an optional dual construction whereby the components may be assembled to form a construction adapted for ceiling mounting or, in the alternative, to form a construction adapted for wall mounting. The components permit quick and easy assembly and disassembly of the universal bracket, and, in either construction, a swivel relationship exists between the assembled components permitting limited universal angular adjustment of the supported fan motor assembly.

Abstract: A unitary carton system for column supported air circulating fans wherein a plurality of fan components may be shipped in disassembled form in a single carton of concise size acceptable by package delivery services. Nested fan blade guards, a column supporting base, and a fan blade assembly are stacked within a carton and maintained in position by column structure which includes an inner carton, and the fan motor is located within a corner region. The carton cover maintains the column structure within its support, which in turn, contains the stacked components in a predetermined relationship.

Abstract: A fan guard comprising front and rear portions each including a plurality of radially extending wires circumferentially spaced supporting a plurality of concentrically mounted wire rings. Some of the radially extending wires include an end having a homogeneously extending tab formed thereon. The tabs have a front and back side and are formed by bending the end of the wires into a P-shaped loop defining a slot having parallel edges. The tabs are offset with respect to the portion's joining plane so when the guard portions are assembled the front side of the tabs of the front portion engage the back side of the tabs of the rear portion to form abutments with each other in an interlocked relation preventing axial separation of the guard portions and the loops align to receive a bolt upon which a nut is threaded to secure the guard portions together.

Abstract: A system for fabricating fan blades wherein the assembly includes a flat hub plate having generally radially oriented notches defined therein intersecting the plate periphery. Individual blades each include a hub connection portion adjacent an inner end region which includes parallel flat portions angularly related to the general blade configuration interconnected by a transition portion. The flat blade portions are located upon opposite sides of the hub plate and the transition portion extends through the hub plate notch. The flat portions are attached to the hub plate, and by predetermining the position of the hub connection configuration on the blade, the fan characteristics can be predetermined and accurately duplicated. The system permits a standard set of tools to form a variety of sizes of the fan blade components having various characteristics.

Abstract: A switch system for overhead electric extension cords for remotely controlling overhead-mounted electrical appliances, such as fans. A drop cord includes an upper end having electrical fittings connectable to an overhead power supply extension cord and the electric user cord, and the lower end of the drop cord includes a switch at an accessible level from the floor. The drop cord switch controls the circuit between the power supply and user cords, and a strain relief cable anchored overhead supports the weight of the switch.

Abstract: A belt-driven fan characterized by its concise axial relationship of components. A shroud includes a planar apron and a tubular throat intersecting the apron. Linear support members attached to the apron support an electric motor and blade assembly bearing structure. The motor is mounted upon a bracket attached to the support members for selective assembly thereon between operating and shipping positions and with the bracket in the shipping position the electric motor is primarily located within the shroud throat.

Abstract: The invention pertains to an electric fan wherein the fan motor casing is enclosed at its rear end by a dome. The power cord, switch and motor capacitor are mounted upon the dome, and the electrical conductors associated therewith are connected to the motor components through a separable connector permitting the switch, capacitor and power cord to be quickly removed from the motor casing facilitating repair, maintenance and replacement of these components.

Abstract: The invention pertains to a swag kit for ceiling mounted fans wherein the kit includes a flexible electrical conductor supported within a chain, the upper region of the chain being connected to a ceiling plate while the lower region of the conductor connects to a switch box containing a switch for the fan, and may also include a light switch. A line cord is connected to a switch within the switch box, and the ceiling plate functions to electrically isolate the fan connections from the ceiling in compliance with code regulations. Conductor strain relief means are provided at both the ceiling plate and switch box, and a chain receiving hook is homogeneously defined upon the ceiling plate to support the chain without tensioning the conductor.