Abstract: An apparatus for mounting ceiling fan blades onto ceiling fan blade mounting ring rotor extension. The fan blade attachment mount is can be adapted to fit a multitude of fan rotors configurations. The appearance of the mounting and support members is aesthetically pleasing and the mounting apparatus provides a stable connection between a plurality of ceiling fan blade assemblies and a variety rotor extension mounting surfaces of a ceiling fan.

Abstract: A motorized ceiling fan lifting and lowering apparatus for lowering a ceiling fan so that the ceiling fan may be easily cleaned. The motorized ceiling fan lifting and lowering apparatus includes a tubular member, which is elongated and has a first end and a second end. The first end is open. A shoulder is integrally coupled to an edge of the first end and extends inwardly. A lip extends upwardly from the shoulder. The lip has a threaded inner surface. The second end of the tubular member is coupled to a ceiling fan. A motor is attached to the ceiling. A shaft has a first end attached to the motor such that the motor may selectively rotate the shaft in a first direction or a second direction. The shaft is threaded and has a second end extending through the lip and into the tubular member such that the shaft threadably engages the lip. An actuator selectively actuates the motor in the first or second direction for lowering and lifting the ceiling fan. The actuator is electrically coupled to the motor.

Abstract: computer cooling fan includes a fan and a plastic fan holder fixedly fastened to the computer mainframe, monitor, computer table, or the like, and adapted to hold the fan, the fan having a fan stand capable of supporting the fan on a flat surface positively, a fan blade, and a fan head unit pivoted to the fan stand and turned to move the fan blade to the desired angle and controlled by an on/off switch at the fan stand to rotate the fan blade, the fan holder having a receptacle adapted to hold the fan stand of the fan.

Abstract: A cavity vertical turbine includes a rotatably driven electric generator or air compressor, a drive shaft operably connected to the electric generator or air compressor to cause rotation thereof, a first member having a cavity vertical surface and being connected to the shaft such that the cavity vertical surface opposes the drive shaft such that the cavity surface opposes the drive shaft in a spaced relation therefrom, a second member having a cavity surface and connected to the shaft such that said cavity surface opposes the drive shaft in a spaced relation therefrom, wherein the cavity surfaces are further characterized to be in opposing partially overlapping relation to one another and a device for suspending the members in a manner which permits freedom of movement between an operable and inoperable position by virtue of forces of air current directed at the members.

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 pair of high speed blowers are pivotally mounted in a vertical plane on a movable frame structure. Each blower has blades turning in an opposite direction from the other blower. The blowers are locked in place at an angle of 10 to 60 degrees with respect to each other so that air emanating from the blowers impinge on each other downstream from the blowers. The air impingement creates a triangular type expanding air stream pattern downstream from the impingement area.

Abstract: A cavity vertical turbine includes a rotatably driven electric generator or air compressor, a drive shaft operably connected to the electric generator or air compressor to cause rotation thereof, a first member having a cavity vertical surface and being connected to the shaft such that the cavity vertical surface opposes the drive shaft such that the cavity surface opposes the drive shaft in a spaced relation therefrom, a second member having a cavity surface and connected to the shaft such that said cavity surface opposes the drive shaft in a spaced relation therefrom, wherein the cavity surfaces are further characterized to be in opposing partially overlapping relation to one another and a device for suspending the members in a manner which permits freedom of movement between an operable and inoperable position by virtue of forces of air current directed at the members.

Abstract: A combination floor and wall mount pivoting fan which can be placed on a floor or other supporting surface, and also hung from at least a bracket on a wall, with a base on the fan engaging hooks on the bracket which is attached to the wall.

Abstract: A booster fan assembly includes a fan, an electric motor coupled to the fan, an electric cord coupled to the motor and adapted to be coupled to a source of electric power through a pair of thermostats and voltage reducing transformer, and a support coupled to the motor and adapted to be inserted in a heating/air conditioning duct from a distal end. The support has a flexible perimeter portion for contacting the interior surface of the duct and a central portion extending inward from the perimeter portion that is coupled to the motor. An outer surface of the support is selectively engageable with an interior surface of the duct at any selected location. The support is an incomplete ring that is collapsible from a first diameter to a second smaller diameter to permit insertion of the assembly into the duct. The support includes two inwardly directed handle portions normally spaced from each other, the handle portions being compressible toward each other to cause contraction of the perimeter portion.

Abstract: A suspension structure for a ceiling fan includes a suspension rod, a support disk secured to the suspension rod, a locking block slidably mounted on the suspension rod, and a slide cover rotatably mounted on the suspension rod. The support disk is provided with a tubular base secured on a lower end of the suspension rod. An outer thread is formed on a lower end of the tubular base. A plurality of locking openings are laterally defined in the tubular base. The locking block is provided with a plurality of locking inserts each secured in a respective locking opening of the tubular base of the support disk. The slide cover defines a receiving chamber for receiving the locking block and the tubular base therein. An inner thread is formed on a lower end of the receiving chamber of the slide cover and is engaged with the outer thread of the tubular base of the support disk.

Abstract: An electric fan includes a block disposed on a base, a coupler having a bracket pivotally secured to the block at a pivot shaft, a motor secured on the other end of the coupler, a fan device attached to the spindle of the motor for being driven by the motor. means for securing the coupler to the block. A spring-biased projection is received in the block and engaged with the bracket for adjustably securing the coupler to the block. A net device is secured onto the middle portion of the motor at a peripheral flange.

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: An economical and compact air handler specially configured for use in agricultural applications is provided. The agricultural air handler includes a shroud formed to surround a rotating shaft having a propeller attached to each end of the shaft. The propellers draw air through an air inlet located proximate the top of the shroud. Each propeller blows the air out of an end of the shroud. A shaft drive rotates the shaft. The shaft drive can be powered by a source outside the shroud, or a source contained within the shroud. The power source can include a hydraulic pump driven by the power take-off of a tractor. An air stream is blown from the shroud. The air stream is directed in an approximately vertically planar flow pattern to remove water ponded within the stem cup of a agricultural crop, such as cherries. The air handler can be used as a freeze protecting heat exchanger or for the application of liquid or dust formulations of agri-chemicals.

Abstract: An oscillating electric fan may be used in both a table supported position and a wall mounted position. The electric fan includes a fan unit and a pedestal for supporting the fan unit. The pedestal includes a base and an elongate fan unit support extending generally perpendicular to the base. A mounting joint is provided for moveably coupling the fan unit to the distal end of the fan unit support. The mounting joint permits pivotal tilting movement of the fan between first and second positions which define the wall mounted and table supported positions of the fan. A manually actuatable clip is engageable with the mounting joint. The clip permits movement of the fan unit from the first positions to the second positions without actuation of the clip. The clip further prevents movement of the fan unit from the second positions to the first positions without actuation of the clip.

Abstract: An apparatus for detachable connection of a ceiling fan motor housing to a ceiling mounting assembly. The ceiling fan downrod provides a standardized elongated tube that is connectable to a multitude of ceiling fan housings and assemblies, and provides a universal ground wire connection through a plurality of holes for electrical grounding of the apparatus. The downrod is an elongated tube with a hollow center, having a plurality of pairs of holes near each end of the downrod. Each open end of the downrod has a plurality of threads on the exterior surface of each end, the threads providing one connecting method to attach one end of the downrod to a ceiling mounting assembly, and the second end of the downrod to a motor housing of the ceiling fan. The downrod provides numerous options for connecting the downrod to ceiling fan assemblies, and provides versatility for attachment of electrical ground wires through the plurality of holes in the downrod.

Abstract: A fan device comprises a front fan cover, a blade device, a rear fan cover and a rotary front net. The front fan cover is installed with a first motor and a second motor therewithin. The blade means is installed behind the front fan cover and secured to the center of the shaft of the first motor for being driven to rotate by the first motor. The rear fan cover is installed behind the front fan cover and the blade device. The rear fan cover is combined with the front fan cover. The rotary front net has many lattices. The rotary front net is properly connected to the shaft center of the second motor and is driven to rotate by the second motor. The front fan cover is installed with a fragrant piece groove, a mosquito-repellent incense piece groove and an electric heat piece, and a fan leg frame is pivotally mounted to the rear fan cover. Thereby, the output wind can be diffuse uniformly and smoothly.

Abstract: A mount for a fan which is suitable to mount the fan to a wall, or a ceiling, or any flat surface, which includes a bracket to attach to the surface, which has a tubular member attached thereto and to the fan body, to suspend the fan body, which permits the fan to rotate or pivot for air direction.

Abstract: An electric fan, which includes a saucer-like base for positioning on a flat surface, a floor fan connector for fastening to the base, a fan assembly, the fan assembly having a downwardly extended bottom coupling tube and a peg raised from the periphery of the bottom coupling tube, a stem for connection between the fan assembly and the floor fan connector, enabling the fan assembly and the base to be assembled into a floor fan, a lock screw for threading into a screw hole at the peg of the bottom coupling tube to secure the fan assembly to the stem, a lock nut for threading onto an outer thread at the stem to secure the stem to the floor fan connector and the base, and a desk fan connector for fastening the bottom coupling tube of the fan assembly to the base, enabling the fan assembly and the base to be assembled into a desk fan.

Abstract: A fitting includes a mounting bracket to be fixed on a ceiling wall, and with two side edge portions opposite to each other to define an uppermost abutment plane. Two mounting walls extend downwards from the side edge portions, and have positioning walls axially spaced apart from the plane. An anchoring seat is disposed on one of the mounting walls immediately upstream of the positioning wall in a clockwise or counterclockwise direction, and is spaced apart from the plane with a width larger than that between the positioning wall and the plane. A protective covering member includes an upper annular secured portion, an anchored portion extending from the secured portion radially, inwardly and downwardly so as to engage the anchoring seat for suspending the covering member from the mounting bracket in a non-fastened state, and a supported portion extending from the secured portion radially and inwardly.

Abstract: A ceiling fan has a downrod assembly secured at an upper end to a ceiling bracket assembly and secured at a lower end to the motor shaft of a motor. An upper canopy is disposed at an upper end of the downrod assembly and a lower canopy is disposed at the lower end of the downrod assembly. A fan housing/blade mounting assembly secures fan blades to a motor body that rotates about the motor shaft, and a lower platter assembly is secured to a lower end of the motor shaft.

Abstract: A small size portable fan having a mechanism for adjusting the angle of a blower relatively to a body portion, and a mechanism for hanging the fan to a human body or other objects. The fan includes a body portion, and a blower pivotally mounted on the body portion for adjusting the relative blower angle. A cord can be attached to the fan for the hanging purpose. The connecting mechanism of the cord to the fan is in a detachable manner that when an outer force applying to the connectors exceeds a certain extent, the cord will be released from the fan, therefore prevents from harms to a wearer.

Abstract: A combination floor and window box fan which can be placed on a floor or other supporting surface, and also hung from a window, with brackets on the fan housing in the window opening, and retained therein by engaging a window sash and the window sill, which fan housing may be rotated between the brackets to pull air into, or exhaust air from a space, without modification to the window opening.

Abstract: An apparatus for connecting a downrod to a mounting assembly and a motor housing of a fan. The mounting assembly and the motor housing are capable of receiving a differently sized downrod. The apparatus comprises a pair of adapters. The adapters each have a first end that engages an end of the downrod; a second end that engages either the mounting assembly or the motor housing; and a hollow interior extending between said first and second ends. In one alternative embodiment, the first end receives the downrod and includes: a pair of aligned apertures; and an aperture disposed between the pair of aligned apertures. The second end is threaded and engages either the mounting assembly or the motor housing. The second end includes a pair of aligned apertures on opposite sides thereof. The apparatus also includes a pair of pins to insert through the aligned apertures and a pair of fasteners for securing the downrod within the adapter. In another alternative embodiment, the first end inserts within the downrod.

Abstract: A pedestal fan which has a ratchet assembly, which permits the fan to pivot vertically up and down, which is resistant to position change.

Abstract: A fan apparatus 10 for use on the dashboard 101 of a vehicle 100 includes a housing member 20 having a fixed Louver element 22 for introducing ambient air into the interior of the housing member 20. The air will be heated by a heating coil member 30 and the heated air will be forced through at least one downwardly angled hinged Louver panel 25 by at least one fan member 40. Wherein, the angular orientation of the fan member 40 can be altered by the manipulation of an elongated stem element 43 which projects through an enlarged opening 26 in the housing member 20.

Abstract: A hanging bracket is initially secured to an electric outlet box. The hanging bracket includes on one of its ends, two canopy hooks with a screw hole located therebetween. The other end of the hanging bracket includes a single screw hole. A canopy includes two spaced slots shaped and located to receive the two canopy hooks of the hanging bracket. With the canopy hooks extending through the corresponding slots in the canopy, a fan assembly is pivotally mounted on the hanging bracket. It is then possible to connect the lead wires of the outlet box and the wires of the fan assembly. All that is then required is to pivot the canopy with the associated fan assembly about the canopy hooks into a vertical orientation. No additional lifting of the fan assembly independent of the fan assembly being supported by the hanging bracket is required. A single screw is inserted through the canopy into the screw hole in the hanging bracket at the end of the hanging bracket opposite to the end which includes the canopy hooks.

Abstract: An apparatus for detachable connection of a ceiling fan motor housing to a ceiling mounting assembly. The ceiling fan downrod provides a standardized elongated tube that is connectable to a multitude of ceiling fan housings and assemblies, and provides a universal ground wire connection through a plurality of holes for electrical grounding of the apparatus. The downrod is an elongated tube with a hollow center, having a plurality of pairs of holes near each end of the downrod. Each open end of the downrod has a plurality of threads on the exterior surface of each end, the threads providing one connecting method to attach one end of the downrod to a ceiling mounting assembly, and the second end of the downrod to a motor housing of the ceiling fan. The downrod provides numerous options for connecting the downrod to ceiling fan assemblies, and provides versatility for attachment of electrical ground wires through the plurality of holes in the downrod.

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: A suspension assembly includes an upper suspension subassembly with an upper end secured to a ceiling, a connecting device including an upper end having a spherical surface engagement relationship with a lower end of the upper suspension subassembly, and a lower suspension subassembly including an upper end having a spherical surface engagement relationship with a lower end of the connecting device and a lower end securely attached to a motor for driving a ceiling fan.

Abstract: A fan using tensionable safety guards combined with a universal subframe to enhance fan servicing. The preferred fan comprises a parallelepiped housing protectively enclosing an internal subframe securing a drive motor and fan propeller. A reinforcing edge circumscribes the housing front and rear to facilitate guard coupling. The edge comprises an angled brace adjacent to a peripheral lip penetrated by several spaced-apart slits. Fastener orifices penetrate the housing adjacent the slits. A displaceable clip resides in each slit. A clip anchor mates with a fastener that permits an operator to displace the clip outwardly and inwardly to selectively tension the safety guards that cover the housing front and rear. Each guard comprises a rectangular wire mesh. Each clip defines an arcuate cradle that captivates a portion of a safety guard. A transverse notch in each cradle captivates another portion of the guard to firmly seat it.

Abstract: A helicopter's main rotor blades are removably attached to a hub, which is rotatably mounted on a mast. The base of the mast is attached to the helicopter's body by unthreaded, expandable bushing bolts. When inserted, the bolts' centerlines lie in a plane which perpendicularly intersects the axial centerline of the mast. The mast is hollow and encases a drive shaft. Splines at one end of the drive shaft removably engage splines on the engine transmission. The hub has a removal fitting for engaging an end of the drive shaft. When the mast is detached and pulled apart from the helicopter body for storage, the removal fitting forces the drive shaft splines to disengage from the tnansmission splines, and keeps the drive shaft inside the mast while the mast is being removed. The main rotor blades' pitch is controlled by a plurality of pitch control linkages. Each linkage is comprised of a first part connected to the mast and a second part connected to the helicopter body.

Abstract: A swashplate is provided for use in helicopters having a vertical main rotor axis. The swashplate includes a bearing, a first race member including a channel, a second race member including a channel, and a third race member including a channel. The channels of the first, second, and third race members cooperate to form a bearing-receiving slot. The bearing is positioned to lie in the bearing-receiving slot. The first and second race members are adjustably coupled to change the respective positions of their channels.

Abstract: An adjustable ceiling fan support assembly for use in recreational vehicles, motor homes, camper shells and the like to removably suspend a ceiling fan from opposing vertical supports. A spring-biased adjustable fan support is interposed between two vertical supports, such as the interior walls of a recreational vehicle or retractable awning frames, and the fan is suspended from the support. The support includes a pair of generally parallel, elongated support arms having a fixed component and a reciprocable component. The fixed component depends from diametrically opposed edges of a plate. The reciprocable component has an engaging end portion, slidably engaged with the fixed component, and a wall engaging end.

Abstract: A portable fan for use on a child 's stroller. The fan has a housing, an electric motor in the housing powered by a source such as a battery so that the motor does not require any physical connection to a fixed location, a mechanism for moving air including a shaft connected to the motor, a hub on the shaft and a plurality of blades, made of a resiliently flexible material, projecting radially outwardly from the hub, a shroud having an animal face depicted thereon connected to the housing and substantially enclosing said air moving mechanism, a clamp for releasably clamping the fan onto the stroller being shaped in the form of an animal foot and a bendable support interconnecting the housing and the fan.

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 radiant electric heater has a pair of bracket arms rotatably attached to opposite ends of a housing secured to a support bracket attached to a ceiling over a work space. A control switch mounted on one of the bracket arms and a control knob secured to the switch are substantially centered on the housing's axis of rotation. The housing is rotatable relative to the bracket arms throughout an angle of not more than 90 degrees and can be held in any one of several angular positions. The control knob may have a ball chain attached thereto to control operation of the heater from a position remote from the heater. In a modification, heat shields are provided along the upper and lower margins of a reflector assembly to prevent extreme heat build-up on the heater housing.

Abstract: A support particularly adapted to support an electric fan is provided. The support has a cam action quick release mechanism which is movable between locked and free positions. When the release mechanism is in the free position the fan can be easily rotated to a desired degree of tilt about a horizontal axis. When the release mechanism is in the locked position rotation of the fan is prevented. The support also includes tilt limiting mechanisms which sets a predetermined forward and backward limitation on fan rotation.

Abstract: A pivot fan which has an improved yoke and base assembly, which is easy to mold, of improved structural design, uses less material in construction, which includes a one piece molded base with a yoke, a portion of which is integral with the base and with two members which are engaged in recesses in each side of the base, and support a fan outer housing, which is retained in the yoke, and tiltable for air direction variance, which housing has an integral handle, and contains a fan motor and blade to provide airflow.

Abstract: A portable electric fan including a plurality of posts connectable to form an elongated pole having first and second ends; a pedestal attached to the first end of the pole and adapted to provide support thereof on a base surface; and a clamp attached to the second end of the pole and adapted for clamping engagement with an upper surface spaced from the base surface. Also included is an adjustment mechanism for adjusting the length of the pole and a blower retained by the pole.

Abstract: A portable electric fan including a housing defining an air inlet opening and an air outlet opening; a fan blade rotatably mounted within the housing and operable to produce air flow between the inlet opening and the outlet opening; an electric motor operatively coupled to the fan blade; a support attached to the housing; and a base retaining the support and defining a substantially planar support surface for engaging a substantially horizontal foundation surface, the base and surface adapted to stabily support the electric fan on the foundation surface. Also included with the fan is a clamp manually activatable into clamping engagement with a mounting so as to support the electric fan therefrom.

Abstract: A portable electric fan including a base having an upwardly directed coupling surface and a bottom surface for mounting on a foundation; a support having a downwardly directed coupling surface rotatably mounted on the upwardly directed coupling surface; a housing fixed to the support so as to be movable therewith, a fan blade retained by the housing; and an electric motor operatively coupled to said fan blade and energizable to produce rotation thereof. The coupling surfaces are shaped and arranged to produce in response to rotation of the support relative to the base, movement of the housing having both horizontal and vertical components.

Abstract: A portable, positive pressure fan for fire fighting provides a three-leg frame with a platform supporting the fan and its driving engine. The platform carries two forward, laterally spaced collars and one rearward collar to adjustably receive the three legs for support spacedly above a supporting surface. The legs are adjustably positionable in the collars to allow vertical adjustment to regulate fan height and angulation relative to a supporting surface, have an arcuate configuration and are somewhat resilient to absorb and damp operative forces, and the leg array alleviates or negates walking of the structure on a supporting surface caused by vibrations resulting from operational forces. The fan has a blade with diametrically opposed lobes of the aircraft propeller type to create a narrow cone of pressurized air and preserve as great a volume and velocity of such air as possible at ordinary operating distances.

Abstract: A portable electric fan includes a rechargeable battery disposed in the bottom portion of a housing for storing and for supplying electric power. An opening is formed in the front portion of the housing for receiving a fan device, the fan device includes two shafts rotatably secured to the housing and each having a number of notches formed in the outer peripheral portion. Two resilient devices are engaged with the notches of the shafts so as to retain the fan device in suitable positions.

Abstract: A ceiling fan is disclosed comprising a motor having a stator with a top portion and a bottom portion and a rotor having a bottom portion, a down rod secured to the top portion of the stator for suspending the motor from the ceiling, a motor housing enclosing at least a portion of the motor, at least one switch for selectively controlling the operation of the motor, a plurality of blades removably securable by suitable fastening devices to the bottom portion of the rotor, and a switch housing for containing at least one switch securable to the bottom portion of the stator, an upper edge portion of the switch housing being operable to conceal from view at least a portion of the fastening devices used to secure the blades to the motor.

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 tiltable fan assembly adapted to exhaust air at a variety of angular orientations. In a preferred embodiment, the tiltable fan assembly includes a generally flat base member adapted to rest on a table top or similar surface. The base member is shaped to include a pair of horizontally-extending, cylindrically-shaped sleeves. The fan assembly also includes a pair of mounting posts, each mounting post being angularly adjustably mounted about its longitudinal axis within its respective sleeves and being appropriately sized to extend out through both ends of its respective sleeve. A rotary switch is angularly adjustably mounted on the outer end of one of the mounting posts, and a cap is fixedly mounted on the outer end of the other of the mounting posts. A pair of gaskets are fitted onto the inner ends of the mounting posts. The fan assembly further includes a fan unit and a neck assembly, the neck assembly being used to couple the fan unit to the angularly adjustable mounting posts.

Abstract: An angle-adjustable joint including an upright stand having a substantially U-shaped mounting frame at the top, a fan support pivotally connected to the U-shaped mounting frame by a screw bolt and a nut, and a lock retained in a vertical groove on the U-shaped mounting frame and engaged with a tooth portion in an annular recess at one side of the fan support to lock the fan support in any of a series of angular positions, wherein the lock has a hooked portion on a projecting rod thereof inserted through a transeverse through hole on the fan support and hooked on a retaining flange at an opposite side of the fan support.

Abstract: A portable electrical fan including a housing defining inlet and outlet openings for transmitting air; a fan blade disposed in the housing; a motor supported by the housing and rotatably coupled to the fan blade; a base for placement on a support surface and having a coupling for detachable connection to the housing, the base defining a base receiving portion; an elongated standard having one end detachably secured to the coupling and an opposite end detachably secured to the housing, the standard defining a standard receiving portion; an electrical control connected to the motor; an enclosure retaining the electrical control and removably receivable by either the base receiving portion or the standard receiving portion; and a retainer for securing the enclosure to either the base receiving portion or the standard receiving portion. Conversion of the invention into either a floor or table fan is easily accomplished.

Abstract: Two oscillating air fan assemblies are attached to arms which are slidable around and along a three piece screwed-together pole. Each fan is adjustable in multiple ways, and can be locked in place for efficiently cooling humans and things. The apparatus is readily disassemblable, for efficient shipping. Each molded plastic arm has holes and a hollow interior with a post through which runs the wire connecting the fan assemblies, so it is adequately secured.

Abstract: Disclosed is a new pole mounted revolving air circulating fan for inducing air movement within an air mass by use of a rotating impeller which simultaneously revolves around a vertical axis. The pole mounted revolving air circulating fan comprises a telescoping support pole extending substantially vertically upwardly from a mounting floor surface to a mounting ceiling surface, the ends of the support pole frictionally engaging the mounting surfaces. A fan, comprising a rotary air impeller coupled to an electric motor through a drive shaft, is revolvedly mounted on the vertical support pole. A generally cylindrical motor housing encloses the motor and the motor power supply leads. A blade guard, constructed of wire rods forming a substantially annularly shaped wire cage, encloses the impeller to prevent injury from contact therewith. The guard has a central hole through the back wherethrough the front end of the motor housing extends.