Abstract: A portable apparatus that includes fan and a harness adapted to permit the fan to be hung from a harness in a self-supported position on the wearer and which permits relocation of the fan to vary the distance of the fan from the neck of the wearer. The harness includes a cord that is looped about the wearer's neck and which passes through an adjustable coupler, whose sidewalls are configured and arranged to deform in response to squeezing forces. In response to the sidewalls being squeezed, the adjustable coupler releases the cord to permit simultaneous relative movement of the adjustable coupler along the cord. In response to removal of the squeezing forces, the adjustable coupler resiliently returns to its undeformed condition, grasping the cord to prevent relative movement of the adjustable coupler.

Abstract: A portable electric fan is provided. The portable electric fan includes a handle constructed of a case in the form of a hollow column, having one end through which one or more power supplying batteries are installed, a motor connected to the electrode of the battery for providing a rotational driving force, a fan which is installed on a rotating shaft of the motor and is rotatably driven, a protecting member enclosing the fan rotated by the motor, and a cord attached to some part of the protecting member. Therefore, the portable electric fan can be operated, while hanging around some part of a user's body such as the neck. Accordingly, it is possible to freely use both hands. Also, it is possible to safely produce air movement since a protecting member enclosing the fan is formed.

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 necklace hanger for mounting on a portable fan to be worn is disclosed. The hanger includes a main body having a ring for fitly mounting on a fan and an extension for supporting the shroud of the fan. Then a cord is connected to the extension to form a loop for hanging the fan to one's neck. The hanger can selectively combine with the fan by user and is suitable for applying to other portable fans. Furthermore, the connecting mechanism of the cord and the main body is in a detachable manner that when an outer force applied to the connectors exceeds a certain extent, the cord will be released from the hanger to prevent from harms of a wearer.

Abstract: Fan construction which includes a pre-assembled pretested handle assembly, which contains a multi-position switch, a thermostat, a cordset and wiring to connect to a fan motor, which is snapped into place in a fan body or grill.

Abstract: There is disclosed an elongate style portable fan device having an elongate body portion including a fan device mounted on the top end of the body portion. The elongate body portion is designed to lay flat on an underlying flat surface in a manner which maintains the fan device portion at an angle of approximately 30 degrees from the central horizontal axis of the elongate body portion such that the fan blades of the fan device are free to rotate above the underlying flat surface when in the fan activated mode. The elongate body portion includes stop means for providing a resting stop position for the elongate body portion in order to permit the fan blades of the fan device to rotate freely when in the resting position and in the fan activation mode while laying on a flat underlying surface. Switch means is provided to the device for alternating between a fan activation and a fan deactivation mode.

Abstract: Co-molded fan vanes on a propeller. The vanes provide a soft, flexible material guard along the leading edge of each vane. This obviates the use of a propeller edge guard without concern for injury.

Abstract: A portable air-blowing working machine includes a prime mover and an air-blowing system. The air-blowing system incorporates first-stage and second-stage centrifugal air-blowing sections, which are rotatably driven by an output shaft of a prime mover and are interconnected by an air-blowing passage for delivering air discharged from the first-stage air-blowing section to the intake of the second-stage air-blowing section. The first-stage air-blowing section and the second-stage air-blowing section share a common unitary double fan, which includes fore and rear centrifuged fan blades mounted on the fore (first stage) and rear (second stage) faces of a main disk plate integrally mounted on the output shaft of the prime mover.

Abstract: There is disclosed an elongate style portable fan device having an elongate body portion including a fan device mounted on the top end of the body portion. The elongate body portion is designed to lay flat on an underlying flat surface in a manner which maintains the fan device portion at an angle of approximately 30 degrees from the central horizontal axis of the elongate body portion such that the fan blades of the fan device are free to rotate above the underlying flat surface when in the fan activated mode. The elongate body portion includes stop means for providing a resting stop position for the elongate body portion in order to permit the fan blades of the fan device to rotate freely when in the resting position and in the fan activation mode while laying on a flat underlying surface. Switch means is provided to the device for alternating between a fan activation and a fan deactivation mode.

Abstract: This one-handed canoe paddle is comprised of a blade portion, a hand grip portion, and an arm cuff portion. The hand grip is integral with the blade and is at an angle to the centerline of the paddle approximating the angle which a closed hand makes with the centerline of the forearm when the hand and forearm are in alignment. The arm cuff is U-shaped, positioned perpendicular to the plane of the paddle, and connected to the paddle by a shaft that is of a piece with the blade portion and offset of the centerline of the paddle. The angled hand grip being integral with the blade, the connecting shaft being offset, and the uniquely positioned arm cuff taken together create an aggregate design which:permits quick, easy access to the paddle;lets the paddle be picked up and used with one hand;provides the leverage necessary to propel the canoe in any direction without changing grip position;allows the wrist to be held in a neutral position during use of the paddle; andproduces an esthetically pleasing unit.

Abstract: The disclosure herein describes an apparatus for recovering kinetic energy in a free flowing water stream and converting it into useful energy; it comprises a body (22) immerged in a stream, the body defining a duct having an intake side (26) and a discharge side (27). The discharge side is equipped with a deflector (30) which flares outwardly for obstructing the flow of water around the duct to thereby create a negative pressure drag on water being impelled as it is being discharged from the duct. The deflectors flare outwardly at an angle varying from 75.degree. to 160.degree. as measured from the longitudinal axis of the duct.

Abstract: A hand-held deodorizer which includes a cylindrical housing having a centrally mounted fan, and upper and lower air permeable barriers. At least one of the air permeable barriers includes a filter which absorbs odors from air drawn therethrough. The deodorizer further includes a U-shaped handle attached to the periphery of the housing disguising the deodorizer so it resembles a drinking mug. The handle contains batteries and a push-button switch permitting the user to selectively provide power to rotate the fan. The deodorizer can easily be transported and manipulated by the handle and placed adjacent a source of wretched odor. Upon actuation of the push-button switch, the fan draws air from the source of odor through the filter or filters where the wretched odor is reduced or eliminated, and dissipates the odor-reduced air into the surrounding environment. A flagrance impregnated member masks the scent of the dissipated air by providing it with a pleasant odor.

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: An electrically driven fan mounted on the brim or crown of a cap or other head gear is manufactured from plastic, and readily mountable on the head gear without the need for special tools or skills. Dry cell batteries are mounted in the crown of the hat and the impeller of the fan units acts within a recess within the fan unit to pull air downwardly across the face of the user.

Abstract: An air mover which allows for both side-by-side and coaxial stacking. An air mover is essentially composed of substantially a cylindrical fan or motor housing with an air exhaust nozzle extending tangentially therefrom. The side-by-side stacking arrangement includes the interlocking of the stacking register of the handle of the air mover with the underside of the accessory flange at the distal end of the nozzle. The handle snugly nests within the space formed by the nozzle as it extends tangentially from the motor housing. The coaxial stacking involves the interlocking of a tab on the nozzle and a circular projection on one planar surface of the air mover with a slot and circular depression on the opposite planar of another air mover. The diameter of the circular depression being greater than the diameter of the circular projection and the slot being sized to receive the tab. Alone or in combination, the interlocking systems provide for compact storage and transportation.

Abstract: An quickly and easily adjustable support stand for a positive pressure blower having a stationary assembly attached to a pivotally mounted blower support assembly. A foot plate is attached to a horizontal latching bar having mounting pins at either end thereof. The latching bar is pivotally mounted to the stationary frame, and is held against the back of the larger blower support frame assembly which assembly is also separately pivotally mounted to the stationary frame. By applying pressure to the foot plate (i.e. by stepping on it) the latching bar may be moved away from the pivoting blower support assembly so that its angle of tilt may be adjusted by hand up or down. When the desired angle of tilt is reached, foot pressure to the horizontal bar may be released, latching the blower support frame assembly firmly in place on the stationary frame. This simple adjustment may be quickly accomplished by a fire fighter without even bending over.

Abstract: A portable fan worn in a self-oriented position on a wearer for directing a current of cooling air toward the wearer. The fan has a housing made of lightweight material, a lightweight electric motor in the housing powered by a source such as a battery so that the motor does not require physical connection to a fixed location remote from the wearer, a mechanism for moving air including a shaft connected to the motor, a hub on the shaft and a plurality of vanes projecting radially outwardly from the hub, the shaft, hub and vanes being made of a lightweight material, a shroud made of lightweight material connected to the housing and substantially enclosing said air moving mechanism, and a mechanism for supporting the fan below the wearer's face in an orientation wherein said air moving mechanism directs a current of air upwardly toward the wearer's face without being manually held.

Abstract: A blade retention pin system is operative to secure the blade cuff of a main rotor blade of a helicopter in combination with a spindle assembly of the main rotor hub assembly for main rotor assembly operations and is readily reconfigurable to accommodate blade folding operations. The blade retention pin system includes first and second pin assemblies, each pin assembly including a retainer pin and a handle subassembly, which includes a retainer member and a spring member in superposed abutting combination, pivotably mounted in combination therewith. The first pin assembly includes, in addition, a safety pin subassembly secured in combination therewith. Each retainer pin is inserted into aligned apertures of the blade cuff and spindle assembly and locked in place by pivoting the handle subassembly from an unlocked to a locked position wherein the retainer member engages the retainer pin and the spring member is biased onto the retainer pin to abuttingly engage the retainer member.

Abstract: A hand portable positive pressure blower for fire fighting is described which includes an engine 10 with a drive shaft 12 mounting a propeller 16 within a propeller guard 22. This assembly is rigidly mounted to a central frame 27 that itself is rigid and extends about the engine. The central frame 27 is mounted by pivots 47 to a rigid support frame 37 for movement about a fixed adjustment axis 50. An adjustment means is provided to enable selective angular positioning of the central frame about the adjustment axis. The support frame 37 is mounted on rubber feet 42, 43 at integral pairs of forward and rearward legs 38, 39. The legs 38, 39 are angularly oriented with respect to the adjustment axis. Distances from the feet to the adjustment axis and the angular relationship of the blades promotes a secure footing for the blower and a compact configuration to facilitate transport and storage.

Abstract: A portable electric fan including a housing having a front wall defining a front opening for transmitting air, a rear wall defining a rear opening for transmitting air, a top surface, and a bottom surface; a fan blade rotatably mounted in the housing and adapted to move air in a given direction through the front and rear openings; and retainer means projecting upwardly from the top surface and adapted to engage one side of the sash of a vertically movable window. Also included are first and second elongated legs movably mounted in spaced apart positions on the bottom surface and adapted for movement between floor and window positions, each of the legs projecting in the given direction beyond the front and rear walls when in its floor position and extending in longitudinally aligned directions substantially perpendicular to the direction when in its window position. The retainer means and elongated legs facilitate alternative use of the fan for either internal or window applications.

Abstract: A reactor coolant pump has an outer casing with an internal cavity holding a coolant and a rotor rotatably mounted in the cavity within the coolant. An assembly for permitting inservice inspection of the pump rotor without first draining the coolant from the casing cavity is attached to an end of the pump. A cylindrical bore is defined through the casing in axial alignment with an end of pump rotor and opening into the internal cavity. An extension attached on the rotor end and rotatable therewith has a cylindrical coupler member extending into the bore. An outer end of the coupler member has an element configured to receive a tool for performance of inservice rotor inspection. A hollow cylindrical member is disposed in the bore and surrounds the coupler member.

Abstract: A ducted fan including a funnel-shaped duct positioned upstream of the impeller and connected to a base, an outer cowling concentrically positioned downstream and attached to said duct through a series of ribs, an inner cowling positioned inside the outer cowling and surrounding the impeller and a circular grill attached to the discharge end of the inner cowling. The grill including a center hub and a series of arcuate-shaped ribs extending outwardly from the hub and having a constant curvature of less diameter than the outside radius of the grill whereby the maximum lateral spacing between the ribs is at a radius inboard from the outside radius of the grill.

Abstract: The drawings and description describe a hand-portable fire fighting, positive pressure blower 10 for providing positive pressure within a smoke filled space to remove the smoke, heat and carbon dioxide from a smoke filled space to facilitate the extinguishment of the fire and the overhauling of the space subsequent to the extinguishment. It further greatly enhances the safety of the fire fighters. The blower 10 includes a portable support frame 12 having an internal combustion engine 13 mounted thereon with a two blade wooden prop 18 mounted on the drive shaft for generating a cylindrical stream of fast moving air to be directed into the smoke filled space. The blower 10 includes a tilting mechanism 22 that has a lead screw with a crank that extends between a front leg frame section 58 and a central frame section 24. The front leg section 28 has a vibrational dampening cross frame element 60 that extends between the forward extending left front leg 62 and the right front leg 64.

Abstract: A marine emergency spare propeller kit includes a plastic floating spare propeller (4) mounted on a carry handle (20) having an axial shaft (22) extending through the propeller hub (10) and retained thereon by a plastic floating nut (8) which is threaded identically to the propeller drive shaft (6) of the marine drive (2). Carry handle 20 also conveniently transports the damaged propeller after replacement by the spare.

Abstract: An outdoor fan backpack for cooling the head of an individual while he or she is working outdoors in the hot sun. A small, quiet, lightweight, electrical fan, is supported just above and to the rear of the head by a mounting plate and guard attached between two vertically disposed and adjustable tubular members which are strapped to the back of the individual by shoulder straps and a belt. The electrical fan is operated by a control switch and a battery pack mounted on the belt.

Abstract: A one-handed paddle having a blade portion, a hand-grip portion and an arm brace portion. The arm brace portion has a resilient member which releasably grips the forearm of a user to maintain the arm brace portion in contact with the forearm of the user during use of the paddle.

Abstract: A mechanical device for assisting in the application of fingernail polish or enamel, and subsequent drying, makes use of a housing containing an electrically operated fan which moves an air stream upwardly through the housing and out the top. A bracket serving as a hand rest and finger support having a specially constructed attachment to the housing is movable to a position above the air stream where its attachment releasably retains the bracket in finger supporting position and in the air stream. The specially constructed attachment is such that when the bracket is thus positioned an extension of it on opposite sides, protruding beyond the housing, elevates the housing above a supporting surface on which it may rest to assure an abundant supply of air to the fan. When not needed as a hand rest in finger supporting position, the bracket pivots to an endwise location where it can serve as a carrying handle.

Abstract: A ducted fan including a funnel-shaped duct positioned upstream of the impeller and connected to a base, an outer cowling concentrically positioned downstream and attached to said duct through a series of ribs, an inner cowling positioned inside the outer cowling and surrounding the impeller and a circular grill attached to the discharge end of the inner cowling. The grill including a center hub and a series of arcuate-shaped ribs extending outwardly from the hub and having a constant curvature of less diameter than the outside radius of the grill whereby the maximum lateral spacing between the ribs is at a radius inboard from the outside radius of the grill.