Abstract: A livestock cooling system creates an environment for protecting the health and productivity of animals, particularly dairy cows. One or more cooling fans are connected to programmable oscillation means, enabling the herds man to program fan oscillation according to the location of the livestock. Water is injected under high pressure into the air stream of the fans to create a fog. The system is also programmable according to various environmental conditions, including temperature, humidity, and wind velocity. The pressure and volume of the injected water are programmable and may be adjusted by the controller according to the observed environmental conditions. The disclosed system provides a cool and healthy environment for livestock, where the environment is programmed to track the animals according to the time of day, location of the animals and the location of shade.

Abstract: A livestock cooling system creates an environment for protecting the health and productivity of animals, particularly dairy cows. One or more cooling fans are connected to programmable oscillation means, enabling the herds man to program fan oscillation according to the location of the livestock. Water is injected under high pressure into the air stream of the fans to create a fog. The system is also programmable according to various environmental conditions, including temperature, humidity, and wind velocity. The pressure and volume of the injected water are programmable and may be adjusted by the controller according to the observed environmental conditions. The system provides a cool and healthy environment for livestock, where the environment is programmed to track the animals according to the time of day and the location of shade.

Abstract: A multi-functional electric fan comprises a U-shaped brace pivotably mounted to motor, a support for supporting the brace, an arcuate guide mechanism hinged to the support, a transmission mechanism having a plurality of gears and an arm secured to a pin through an opening of the guide mechanism, a transverse post, and a vertical post. Thus fan can pivot transversely and longitudinally by the cooperation of posts, gears, pin, and opening at the same time to reciprocally induce air movement in a transverse, longitudinal, wavy, or fixed direction.

Abstract: A fan head-swinging device includes a speed reducer and a DC motor. The speed reducer consists of plural gears engaging with each other. The DC motor is fixed behind a housing of a fan, having a spindle fixed on with a small gear engaging with one of the plural gears of the speed reducer. So the shaft of that gear may rotate with a very slow speed suitable to the fan head to swing right and left for a proper angle by controlling the DC motor.

Abstract: A fan head-swinging device includes a speed reducer and a DC motor. The speed reducer consists of plural gears engaging with each other. The DC motor is fixed behind a housing of a fan, having a spindle fixed on with a small gear engaging with one of the plural gears of the speed reducer. So the shaft of that gear may rotate with a very slow speed suitable to the fan head to swing right and left for a proper angle by controlling the DC motor.

Abstract: An adjustable crank for adjusting the swinging-angle of a fan comprises a first and a second eccentric disks, the first disk is rotatablely inserted in the second disk, a ring-shape spring is disposed between the engaging surfaces of them to couple them with predetermined torque. A crank pin is eccentrically and integrally formed on the first disk. The second disk is provided with a rotation means for the second disk being turned to rotate about a center axis, which is eccentric with respect to the engaging surfaces. A rotary knob is fixedly mounted on the end of the crankpin for manually turning the first disk to rotate relative to the second disk. Thereby the crank length can be continuously adjusted and self-fixed after being adjusted. Apparently, it is unusually simple in structure, very easy to adjust, especially convenient and cheap in manufacture, and reliable in running.

Abstract: An electric fan mounted overhead for universal adjustment of the air flow direction. A mounting plate clamped to an overhead beam carries a sleeve that rotatively receives a vertical column. The lower end of the column pivotally connects with a mounting arm which carries the fan. A rotation motor can rotationally adjust the column to adjust the lateral direction in which the fan faces. A linear actuator pivots the mounting arm up and down to adjust the tilt angle of the fan.

Abstract: A table electric fan comprising a stand, a protective net, a blade set fixed on a spindle of a motor, a speed reducer connected to the motor, a plate pivotally connected to the shaft of the speed reducer and further pivotally connected to a bottom base of a position frame having two pairs of vertical posts standing on the bottom base. The upper ends of all the posts are fixed with the protective net. A ring is pivotally connected with one pair of the vertical opposite posts and further pivotally connected with the motor at two opposite points. Then the blade set may sway for 360° within the protective net by means of pivotal connection of the motor with the ring and pivotal connection of the position frame with the ring.

Abstract: An electric waving fan includes a single air moving fan vane element, a motor for generating power, a transmission apparatus for converting the power to motion, and a power output assembly for moving the single fan vane element simultaneously in two directions such that the fan vane element moves with a waving motion. The fan further includes a base and a wrist assembly that can be moved in two directions relative to the base which can be mounted on a wall, on the floor or desk, or hang from the ceiling.

Abstract: A swaying mechanism is provided, which can be used on various kinds of electrical appliances that need to be swayed during use, such as electric fans, dryers, and heaters. The swaying mechanism can protect the motor from being burned out when the swaying motion is abruptly stopped by foreign objects, and also can allow the electric cable to be always fixed in position all the time during the swaying motion such that the cable would not wear out. The swaying mechanism includes a synchronization motor; a first elbow member coupled to the motor shaft; a linkage bar for providing a reciprocating force when the motor rotates; a second elbow member which can be swayed by the reciprocating force from the linkage bar; and a toothed section on which the second elbow member is swayably mounted.

Abstract: A fan apparatus includes a housing with front and rear parts and two swivel joints, a driving motor disposed in the housing, inner and outer annular members, a transmission member, and an anchoring member. The motor has a rear portion provided with a worm section extending toward the rear part. The inner annular member is sleeved on the front part and is connected to the joints so as to swivel relative to the latter. The outer annular member is sleeved retainingly on the inner annular member and is angularly adjustable relative to the same. A swing rod has a first proximate end relative to the worm section and mounted pivotally on the rear part, and a first distal end which extends toward the front part. The transmission member is disposed in the rear part to transmit an axial rotation of the worm section to swing the first distal end of the swing rod relative to the first proximate end in a plane parallel to the worm section.

Abstract: The present invention relates to an electric fan employing three impellers which are so implemented as to receive the driving force of the motor and, more particularly, to an electric fan equipped with the second crank device and the convex surfaced driving bevel friction wheel and driven bevel friction wheel to swing the fan impeller shaft up-down repeatedly and right or left simultaneously, and to an electric fan that has the carrying handle or the carrying handle with the wheels for the convenience of moving, and also to an electric fan that can separate the upper body from the lower body to establish itself as a short up-right standing type, an attache-to-ceiling type, or an attach-to-wall type, and to an electric fan that can get rid of blowing reaction by a stabilizer and, thus, stabilize the swing movement of the fan impeller.

Abstract: A fan actuator device with an adjustable rotary angle having an upper connector rotated by a motor gear, a toggle mechanism formed by an upper connecting rod, a lower connecting rod and a coupling connector, a swinging arm connected to the coupling connector and a fan shelf and an adjusting handle. The upper and lower connecting rods are pivoted to an upper connector and the adjusting handle. Turning the adjusting handle changes the included angle between the upper and lower connecting rods, also changing the turning radius, to vary the swinging range of the fan.

Abstract: A swinging head gear shell for an electric fan is provided and includes a body and a cover respectively molded from reinforced engineering plastics. The body has a mounting plate for mounting with screws, a first open top chamber and a second open top chamber linked in parallel and adapted for receiving a swinging head gear. The body has a plurality of screw holes for the mounting of the cover, and a vertical locating barrel through which one gear shaft of the swinging head gear passes. The mounting plate has a circular through hole through which the worm of the swinging head gear passes. The cover overlays the body to close the first open top chamber and the second open top chamber, and has a plurality of mounting holes respectively fastened to the top screw holes of the body by screws. The cover has a raised portion, and a through hole formed in the raised portion in communication with the second open top chamber for the control lever of the swinging head gear to pass.

Abstract: A portable electric window fan including a housing having side walls, a bottom wall for mounting on a sill of a window, a top wall for engaging a sash of the window, a front wall defining an air outlet, a rear wall defining an air inlet, and the walls together defining a closed chamber communicating with the inlet and outlet. Also included is a fan mount supported by the housing for rotation on a first axis; a drive shaft supported in the chamber on the fan mount and having a second axis transverse to the first axis; an electric drive motor coupled to the drive shaft and operable to produce rotation thereof; a fan blade fixed to the drive shaft for rotation therewith within the chamber; and an electrically powered drive mechanism coupled to the fan mount and operable to produce reciprocating rotation thereof on the first axis.

Abstract: A portable fan providing oscillation in two axes. Oscillation may occur simultaneously in two axes, or in one selected axis. Two oscillation mechanisms are provided, each having its own oscillation motor and each being selectively operable independent of the other. Optionally, the main fan motor may be employed to power one oscillation mechanism. The fan has a base for desk top support, or a base and extensible column for floor support, or a bracket for permanent mounting. All embodiments have controls for controlling the fan motor and the oscillation motor or motors, and a limited tilting feature for maintaining the fan blade at an angle to the base or bracket.

Abstract: A window mounted oscillating fan. The fan has two blower modules each having a motor, fan blade, and diffuser. The diffuser is fixed in a stationary position relative to its fan blade. The window fan oscillates by pivoting all blower modules simultaneously through a single motorized oscillation mechanism. The blower units may be arranged to discharge air in parallel, or alternatively, in different directions. The blower units pivot about an axis inclined from the vertical, so that oscillation has a vertical component as well as horizontal. In different embodiments, the fans operate in tandem, facing the same direction at all times, or oscillate in different directions, thereby diffusing incoming air. The window fan has an air filter, and manual and automatic controls including a touch sensitive on-off switch, a thermostatic on-off switch, and a speed selector.

Abstract: A fan head swing mechanism comprises a swing shaft fastened with the fan head, a rotary plate, a connection rod, and a leg connection seat having a locating rod. The leg connection seat is fastened with the swing shaft. The rotary plate is driven by a motor and is provided with an eccentric shaft which is fastened with one end of the connection rod. The connection rod is provided integrally at another end thereof with a sleeve engageable with the locating rod of the leg connection seat. The sleeve is provided in the inner wall thereof with a protuberance which is movable received in a straight slot and a sectoral slot of the locating rod when the sleeve is engaged with the locating rod. The fan head is caused to swing when the motor is in operation.

Abstract: An electrical fan having a positioning mechanism, driven by the rotation of the fan's motor, which causes the fan's head to simultaneously pivot sinusoidally and continuously about a pair of perpendicular axes to continuously redirect the airstream from the fan in a conical pattern.

Abstract: An electric fan having unidirectional and opposed-directional wind shifting modes is disclosed. The wind shifter of the fan has a drive shaft and an output shaft set in a housing. A unidirectional rotating unit of the wind shifter has a first pinion and a pinion gear. The pinion gear is rotatably fitted over the output shaft and selectively coupled to this shaft by a clutch. An opposed-directional rotating unit of the wind shifter has a second pinion, a crank gear gearing into the second pinion, and a reciprocating rotation disc rotatably fitted over the output shaft and selectively coupled to the output shaft by clutch. The unidirectional or opposed-directional rotating force of the output shaft is transmitted to the head of the fan through a revolving pulley cooperating with a sun pulley of the neck of the fan.

Abstract: A high velocity, weather resistant cooling fan for moving large volumes of air long distances can be disposed in either oscillating or non oscillating modes, either inside or outside. A rigid, generally tubular housing has a suitable guard defined on each end. A propeller mounted within the housing, coaxially disposed adjacent an intake venturi, is directly driven by an electric motor. The fan venturi inlet is formed by a flare defined in its housing at the intake end. A transition zone is defined within the tubular housing where the diameter of the flared end gradually reduces and smoothly merges with the uniform diameter of the housing. The propeller is mounted within the transition zone to stabilize air before discharge. A generally U-shaped yoke, rolled from welded, nested channels, pivotally mounts the fan. A stabilizer tube is preferred for sturdily mounting the yoke to a suitable post.

Abstract: A swivel mechanism for the electrical fan having the motor used to drive the blade of the electrical fan is used to control the swiveling movement. The controlling elements generally includes an U-shape supporting bracket, a positioning post and a connecting mechanism which is disposed between the output shaft and the positioning post. The motor is supported by an U-shape supporting bracket and the U-shape supporting bracket includes a pair of legs which can be connected to the rear housing by a pair of screws. Accordingly, the motor is capable of pitching upward and downward by the help of the screws. The lower end of the U-shape supporting bracket is rotatably mounted onto a positioning post, accordingly, the supporting bracket being capable of swiveling thereof.

Abstract: A tiltable oscillating fan assembly for use in circulating air. In one embodiment, the fan assembly includes a stand, a fan head and a neck joint. The top of the stand terminates in upwardly extending bifurcated portions. The fan head is rotatably supported on the neck joint. The bottom of the neck joint is shaped to include a rounded portion which is pivotally mounted between the bifurcated portions of the stand. One side of the rounded portion is shaped to include a recessed arc which extends over an angular distance of approximately 90 degrees. An angular boss mounted on the inside surface of one of the bifurcated portions limits the angular movement of the rounded portion relative to the bifurcated portions by abutting the neck joint at opposite ends of the recessed arc. When the boss abuts the neck joint at one end of the recessed arc, the fan head is positioned vertically. When the boss abuts the neck joint the opposite end of the arc, the fan head is positioned horizontally.

Abstract: A swiveling electric fan comprising a truncated sphere-shaped housing which encloses a vane member, and a base having a concave or convex spheric top surface with the same diameter as that of the housing, the housing being connected with the base in a swiveling manner, an upper end of the supporting disk being secured to the housing while a lower end thereof extending into the base to connect with and abut against a rotary guiding disk of a swiveling mechanism in a swiveling manner, so that by means of rotating the guiding disk, a shaft section of the supporting disk is rotated in a circular hole of the top surface of the base, the circular hole being larger than the shaft section in diameter, whereby the vane member is made to swivel through an elliptical trace.

Abstract: A fan support for supporting a fan in an elevated position and oscillating the fan about the support. The device includes an adjustable column supported in a vertical position by a plurality of legs. A fan support channel is pivotally mounted to a top end of the column and is operable to receive and support a fan, such as a box shaped fan, thereon. An oscillation device is provided to effect a repetitive pivoting movement of the support channel in the horizontal plane, and a thermostat for controlling operation of both the fan and the oscillation device is also included.

Abstract: A swiveling electric fan comprising a truncated sphere-shaped housing which encloses a vane member, and a base having a concave spheric top surface with the same diameter as that of the housing, the housing being connected with the base in a swiveling manner, an upper end of the supporting disk being secured to the housing while a lower end thereof extending into the base to connect with and abut against a rotary guiding disk of a swiveling mechanism in a swiveling manner, so that when the guiding disk rotates, a sleeve section of the supporting disk is rotated in a circular hole of the top surface of the base, the circular hole being larger than the sleeve section in diameter, whereby the vane member is made to swivel through an elliptical trace.

Abstract: A blower having a base, a main body which has an air inlet opening and an air blowing opening and which is rotatably mounted on a base, a fan disposed in the main body to make air entering the main body through the air inlet opening flow out of the main body through the air blowing opening, a motor for rotating the fan, an automatic rotation mechanism for rotating the main body through 360.degree. or more relative to the base, and an automatic oscillation mechanism for changing over the normal-direction and reverse-direction rotations of the main body on the base in a predetermined angular range.

Abstract: A remote controlled fan is operated by a hand held remote control which controls the power, speed of fan rotation, oscillation of the fan, and movement of the fan. The fan operates on either AC power or batteries. The fan can move forward or rearward or rotate about its vertical axis in response to signals from the remote control unit.

Abstract: A device for variable control of the sweeping angle of a fan which includes a worm gear cooperating with a planet gear and a sun gear to provide variable sweep angle with a clutch mechanism to allow for the disengagement of the drive mechanism while varying sweep angle.

Abstract: A portable electric fan assembly for indoor use includes a base member, an upright electric motor mounted in the base member, an upstanding neck extending from the base member, a substantially vertical drive shaft couple to the motor extending within the upstanding neck, a fan head assembly carried by the neck and having at least a part thereof mounted for limited angular movement so as to be settable at a desired orientation, a fan blade shaft carrying a ban blade protruding forwardly from the movable part of the fan head assembly, and a coupling arrangement for drivably coupling the fan blade shaft to the drive shaft.

Abstract: A fan assembly includes a statonary support holding a rotary support operated by a motor for turning 360 degrees about a vertical axis and a plurality of fan units mounted on the rotary support. First conductors are provided to connect the motor and the fan units to rotary conducting plates which respectively contact stationary second conducting plates, and second conductors are connected to the second conducting plates, thereby preventing the conductors of the assembly from becoming tangled.

Abstract: An electric fan includes a speed selection device accommodated in a housing which is mounted rotatably on the upper end of a base support. The speed selection device is used to select the rotational speed of the fan blades. A push-pull actuator is mounted on the housing and can be actuated to rotate the housing relative to the support. The speed selection device includes a rotary knob which is mounted on the housing near the push-pull actuator.

Abstract: An electric fan heater includes a stationary housing and a louver blade assembly having a plurality of oscillating louver blades located forwardly in the housing for providing multidirectional hot air flow from the heater. The heater also includes a drive system for the louver blade assembly with the drive system comprising lightweight plastic drive gears and a small rubber drive belt located rearwardly in the housing as well as a lightweight plastic connecting shaft extending forwardly from the drive gears to the louver blade assembly. The electric heating element for providing hot air from the heater is positioned between the louver blade assembly and the plastic drive gears. The gears and connecting shaft are located in the housing laterally outwardly from the heating element to avoid direct exposure to the heat therefrom.

Abstract: A fan heating includes a stationary housing and a louvre blade assembly having at least one oscillating louvre blade located forwardly in the housing for providing multidirectional hot air flow from the heater. The heater further includes a drive system for the louvre blade assembly with the drive system itself including lightweight plastic drive gears located rearrwardly in the housing and a lightweight plastic connecting shaft extending forwardly from the drive gears to the louvre blade assembly. Positioned between the louvre blade assembly and the drive gears are an electric heating element for providing the hot air and a fan blade for circulating the hot air which is operated from a motor also operating the drive gears through a rubber drive belt. The drive gears and belt are located in said housing laterally outwardly away from the heating element.

Abstract: An oscillating electric fan having a neck joint which is mounted for tilting movement back and forth on the top of an upwardly projecting portion of a base and a fan unit mounted on top of the neck joint for oscillating movement on the neck joint about a vertical axis includes a flexible clip element which serves to selectively limit the extend of the tilting movement of the neck joint. The clip element, which is attached to the bottom of the neck joint has a hooked shaped tip which will strike the front wall of the upwardly projecting portion of the base when the neck joint is tilted down about 20 degrees from the horizontal axis and as a result prevents further downward tilting movement. However, by manually flexing the clip element upward away from the front wall the neck joint can be tilted further downward so as to place the fan in a collapsed or folded position.

Abstract: A portable electric heater/fan which can oscillate from side to side over a distance of 45 degrees or 90 degrees or remain stationary and which can also be tilted backward or forward so as to provide a beam of hot or cold air whose lateral extent and direction can be adjusted over two mutually perpendicular axes includes a compartment containing a heater/fan assembly and being slidably mounted for back and forth tilting movement on a neck joint fixed to a main gear carried by a shaft mounted for rotation about a vertical axis on a base. The main gear is coupled by a drive gear to the shaft of a synchronous electric motor mounted on the base. A first and a second set of cooperable limit stops are provided on the base and main gear for limiting the rotation of the main gear by the motor to either 90 degrees for the first set or 45 degrees for the second set.

Abstract: A hair dryer comprising an electric motor 1 that places into rotation two or more arms 2 bearing at the ends thereof infra-red and hot air lamps 3, said lamps moving on a curved surface around the user's head due to a mechanism housed in supporting arm 5 and further comprising a sheave 7 with inclined plane, a cam 12 and a cam lever 20 for determining, when combined, a rotation motion of axis 10.

Abstract: A rotating wind-guiding shell for an electrical fan effectively changes the direction and magnitude of the blowing wind from the fan. The pressure and the direction of the wind from the fan can be varied instantaneously and the effective wind field can also be enlarged. At any place within the effective wind field, one can produce a variation of the pressure and the direction of the wind from the fan while it is continuously operating. The structure of the device is simple so that its cost is very low and it can be used as a desk-fan, floor-fan, ceiling-fan or a wall-fan by a simple adjustment at its support.

Abstract: An electric fan and mechanism therefore for controlling the wind direction of the fan upwardly and downwardly and rotationally through 360.degree. as well as 90.degree.. Separate clutch elements are provided with a cooperating clutch pin selectively controlled by a rotatable lever to engage one or the other clutch element, or neither, to regulate the desired rotational movement of the fan.

Abstract: A rotatable and tiltable wind machine for protection of agricultural growth, the machine being adapted for installation on a selected terrain having a varying contour. The machine includes means for mounting on the terrain, a fan drive assembly on the mounting means rotatable with respect thereto, drive means to rotate the fan and the fan drive assembly, and tilting means for tilting the fan with respect to the mounting means and the terrain while the fan drive assembly is being rotated.