Abstract: An accessory (10) mounted for relative rotation with respect to a conventional ceiling fan (100); wherein, the accessory (10) includes a housing unit (13) suspended from the ceiling fan (100) and bearing visual elements (60) whose appearance will change relative to a stationary viewer, in response to the rotation of the housing unit (13) due to air currents generated by the ceiling fan (100) impinging upon a propulsion unit (14) contained within the housing unit.

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 block structure of a generally trapezoidal configuration is interposed between a cavitation plate and propeller of a marine engine's lower unit to effect abutment of the propeller permitting loosening and removal of the associated propeller retaining nut member.

Abstract: A helicopter strike wire cutting apparatus extending from the fuselage of the helicopter to the rotor blades for cutting wires that strike the helicopter during flight. The cutting apparatus includes cutting edges along the rotor control rods and can be arranged to direct a strike wire toward the midpoint of the rod. A second embodiment having cutting edges on a drum rotating with the rotor is also disclosed.

Abstract: A fan is contained within a case having a pivotal upper portion and a lower portion whereby opening the upper portion raises the fan blade and motor assembly to an operating position and during which a limit switch is automatically actuated to operate the fan motor. The fan blade is also provided with a frictional engagement with the motor shaft for permitting the motor shaft to rotate relative to the fan blade when the latter strikes an obstruction.

Abstract: A fan blade cover for use on fans having a plurality of fan blades, where one size cover fits many sizes and contours of fan blades. The cover includes a sleeve manufactured from a flexible material in a tubular configuration where one end of the sleeve is closed and an opposite end is open for mounting the cover on the fan blade. The open end of the sleeve includes a zipper for closing the open end to securely maintain the cover on the fan blade during fan operation. An alternate embodiment includes a clasp and drawstring to secure the fan blade cover in place.

Abstract: A cover for a propeller is disclosed which is intended to be used while a boat on which the propeller is mounted is being transported on a trailer. The cover is either made of a reflective material or is covered with a reflective material and is intended to reflect light from headlights of vehicles following the trailer to provide an added safety factor when a boat is being towed by a vehicle.

Abstract: A locking boat propeller cover that completely encloses the propeller whereby unauthorized removal of the propeller is prevented, the propeller is protected from damage, and the risk of injury to people coming into contact with the propeller area is reduced.

Abstract: A fan mounting bracket is arranged to permit selective vertical positioning of a ceiling fan relative to a vertical support wall. The bracket structure includes a horizontal plate orthogonally and fixedly mounted to a vertical plate permitting respective first and second strengthening ribs orthogonally intersecting to provide for minimizing vibrational translation from an associated ceiling fan mounted to the vertical plate. A modification of the invention includes cleaning structure pivotally mounted to the horizontal plate to permit selective cleaning of the fan blades in use.

Abstract: A wind force-operated cycling ornament, comprising a body shaped like a cyclist and mounted on a base, which can be mounted on a flat surface by screws or a double-sided adhesive tape, two wheels mounted on said body at two opposite sides and connected by a wheel axle, a fan mounted on said body and forced by the power of wind to rotate said wheels through a transmission gear set, and a pair of driven plates and a pair of driving plates movably mounted between a pair of pegs on said body and two contact points on said wheel, and wherein said driven plates are respectively shaped like the upper part of the leg, and said driving plates are respectively shaped like the lower part of the leg; rotating said fan causes said driven and driving plates to alternatively rotate back and forth.

Abstract: A filter and fan assembly utilizes a conventional ceiling fan having a motor and an upstanding tubular member above the motor which carries electrical wires to the motor. A collar concentrically positioned on the tubular member includes radially extending support members, each of which supports a radially extending horizontal arm. At the end of each such arm is attached, a vertically extending support member. A shallow cylindrical shroud is carried on the vertically extending support members, with the shroud extending a limited distance above the radially extending arms. A plurality of trays having porous bottoms are supported on the arms and contain a filter medium including a layer of activated charcoal granules covered by a membrane of polyester filaments. A second embodiment utilizes a split collar which is bolted around the upstanding tubular member. The fan is normally operated to pull air downwardly through the filter medium.

Abstract: Apparatus shears foreign matter such as lines, wires, nets and weeds that can entangle and befoul propellers, propeller shafts, bearings and related structures of propeller-driven, water born vessels. The apparatus shears by cooperative action of a rotating blade that rotates in conjunction with the propeller and a non-rotating blade supported on a non-rotating portion of the vessel. The non-rotating blade is supported on a rope guard that encircles the shaft. A system for simplified installation and alignment includes an intermediate box that supports the non-rotating blade. This assembly is temporarily clamped to a rotating blade, with the box passing through an aperture in the rope guard. Then the box is welded to the rope guard at the aperture.

Abstract: An improved ceiling fan comprises a holder carrying a multiplicity of thin fibers, the holder cantilevered over the blades and lightly dragging the fibers over the rotating blades so that dust and dirt are brushed from the surface of the blade before they adhere. For existing ceiling fans the holder is attached to the housing of the fan by a collar. The holder fastens to the collar so that it may be turned from a "summer" position to a "winter" position to drag the fibers across the surface of the blades regardless of the direction of rotation. The fibers are preferably of a low conductivity, low hydroscopic material such as NYLON.

Abstract: Apparatus shears foreign matter such as lines, wires, nets and weeds that can entangle and befoul propellers, propeller shafts, bearings and related structure of propeller-driven, water born vessels. The apparatus shears by cooperative action of a rotating blade that rotates in conjunction with the propeller and a non-rotating blade supported on a non-rotating portion of the vessel. The non-rotating blade moves axially within its support. With each revolution, a slot follower connected to the non-rotating blade engages a slot carried by the rotating blade to adjust the axial position of the non-rotating blade to compensate for axial movement of the rotating blade. A wedge and valley mechanism prevents the two blades being forced apart during shearing action.

Abstract: A marine propulsion system of the type having a sacrificial anode for corrosion protection of the casing includes structure whereby the propeller is electrically insulated from the casing and the sacrificial anode. The structure includes spacers made of insulating materials, spacers having insulating coatings, or insulating coatings on the surfaces of the propeller or the propeller shaft. Electrical insulation of the propeller prevents unsightly and efficiency-reducing depositions on the propeller surfaces and reduces the required size of the anode.

Abstract: Apparatus shears foreign matter such as lines, wires, nets and weeds that can entangle and befoul propellers, propeller shafts, bearings and the like of propeller-driven water born vessels. The apparatus shears by cooperative shearing action of rotating blades that rotate in conjunction with the propeller and a non-rotating blade mounted on a non-rotating portion of the vessel. The non-rotating blade is pivotally mounted in a rigid blade holder. A wedge and V-shaped valley mechanism operating between holder and non-rotating blade forces the non-rotating blade toward the rotating blade as the blade pivots when foreign matter is being sheared to overcome forces tending to spread the blades apart. The apparatus is intended for operation in situations where there is negligible axial movement of the shaft.

Abstract: A propeller blade of fiber-reinforced plastic with a combined erosion, icing and lightning protection system has a metal shroud fitted to its leading edge, the shroud enclosing a cavity and accommodating a heating conductor at its interior. A ground line of the heating conductor is connected to ground and serves as a lightning conductor.

Abstract: A device shears foreign matter such as lines, wires, nets, and weeds that can entangle and befoul propellers, propeller shafts, bearings and the like of propeller-driven sea-going vessels that are sheared by cooperative shearing action of rotating blades that rotate in conjunction with the propeller and at least one non-rotating blade mounted on a non-rotating portion of the vessel. Positioning mechanism maintains the non-rotating blade in proximity to the rotating blades, for effective shearing operation. The position of the propeller will change relative to the hull, advancing axially when under way in forward drive due to the forward thrust of the propeller and retreating in reverse. Heating and cooling of the shaft will also change propeller position. The positioning mechanism senses the propeller location and moves the non-rotating blade to accomodate changes in propeller position to maintain a fixed, very close spacing between the two blades to enable them to shear foreign matter caught between them.

Abstract: In a line cutting device of the type adapted to be mounted on the propeller shaft of a water-borne vessel for the purpose of cutting lines, ropes, nets, plastic bags or other debris which may foul the blades of a propeller on the shaft, a stationary cutting blade assembly is mounted so as to be restrained against rotation by cooperation with a shaft bearing. The stationary cutting blade assembly having a radially extending stationary cutting blade with an axially directed face and at least one circumferentially directed face defining a cutting edge therebetween. A rotatable cutting blade assembly is mounted for rotation with the propeller shaft and has at least one radially extending rotatable cutting blade thereon with an axially directed face and at least one circumferentially directed face defining a cutting edge therebetween.

Abstract: A weed cutting and shredding attachment for an electric trolling motor including a sharpened cutting blade oriented with the sharp edge thereof adjacent to the path of movement of the leading edge of the propeller blades on an electric trolling motor together with a mounting structure for effectively mounting the cutting element from the trolling motor.

Abstract: Discussed herein is an arrangement for reducing migration of weeds into an area between the gearcase and the propeller hub of a marine propulsion device. The arrangement is intended to reduce the problem of weed migration when a small hub propeller is used.

Abstract: Disclosed herein is a marine propulsion device including a lower unit having a gear case normally submerged in water and a propeller rotatably mounted in and extending rearwardly of the gear case. One or more grooves in the outer surface of the forward portion of the propeller outer hub in front of the propeller blade serves to trap and store fish line or the like which becomes entangled in the propeller and thereby prevent such materials from entering the gear case. The groove extends around at least a portion of the outer periphery of the forward position of the propeller outer hub, includes one or more portions which are open to a hollow interior area in the propeller, and has sufficient dimensions to serve as a barrier against propagation of fish line or the like along the outer surface of the propeller outer hub toward the gear case.

Abstract: A device for filtering air in a room equipped with a ceiling fan having rotating blades includes at least one element made of a filtering material which is interconnected between two adjacent blades of the fan by a fastening means.

Abstract: Apparatus for heating or cooling ambient air in the form of a temperature controlling propeller having a plurality of blades arranged around a rotatable hub, the blades carrying cells containing a heat retaining material. The cells are mounted in openings provided in the blades and retained therein. A thermometer may be mounted on the hub to monitor air temperature. The propeller is heated or chilled prior to mounting on a driven shaft. When the propeller is rotated by the shaft, it simultaneously circulates and heats or cools the surrounding air as desired.

Abstract: An improved device for blocking the rotation of marine propellers on lower units of outboards or out-drives is described. The blocking unit has a fixed part and a movable clamp. The fixed part is held by the movable clamp against the under side of the anti-cavitation plate of the lower unit and has a height sufficient to extend down into the propeller rotation circle. When torque is applied to the propeller retaining nut a propeller blade engages the side or bottom of the fixed part and the propeller is prevented from rotating. The blocking unit has an enriching flange and central and transverse webs to provide a low stress design so that it may be fabricated of plastic.

Abstract: A ceiling fan filter comprising a housing having an air entrance and an air exit. Within the housing and intermediate the air entrance and exit is a filter medium sized to entrap airborne particles. A ceiling fan clip secures the filter to the leading edge portion of a fan blade, thereby filtering the air as it is moved by the ceiling fan.

Abstract: A fan blade cover for use on fans having a plurality of fan blades, where one size cover fits many sizes and contours of fan blades. The cover includes a sleeve manufactured from a flexible material in a tubular configuration where one end of the sleeve is closed and an opposite end is open for mounting the cover on the fan blade. The open end of the sleeve includes a closure for closing off the open end to securely maintain the cover on the fan blade during fan operation.

Abstract: A device mounted in encircling relation to a propeller shaft. The device cuts lines, nets and weeds, thus preventing entanglement of the propeller and preventing entanglement damage which may result to the parts of the driven assembly of the outboard, inboard/outboard or trolling motor used to propel vessels through the water. The device includes a non-rotatable, annular cutting ring member having one or more double-edged cutting blades, that is disposed in sandwiched relation to two rotatable annular members. One of the rotatable members carries no cutting blades, and the second rotatable member carries a plurality of double-edged, circumferentially spaced blades that individually cooperate with the non-rotatable blade in a shearing action. The non-rotatable member includes a protruding, forwardly expanding, wedge member, the wedge member being configured to define a forwardly opening wedge-shaped cavity.

Abstract: A device in a submersible pump or mixer prevents solid bodies from entering a housing containing a mechanical seal. The device has a helically formed groove so directed, that pollutant material is fed in a direction away from the mechanical seal, and the device has a cutting means to cut the pollutant material.

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 air filter for attaching to a top and/or bottom surface of a fan blade. The air filter is constructed from an elongated strip of porous material capable of having air pass therethrough while trapping airborne particles borne by the air. Also, the elongated strip has opposed exposed surfaces and a peripheral edge extending therearound and preferably, an adhesive strip having opposite surfaces and an adhesive substance on each of the opposite surfaces is attached to one side edge of the elongated strip. The other opposed surface of the adhesive strip is preferably attached to a top and/or bottom surface of a fan blade. Thus, the filter strip sweeps and filters air moving across the one surface of the fan blade as the fan blade rotates.

Abstract: A filter device for use in conjuction with a ceiling fan, for removal of smoke and other pollutants from the room air during the operation of the fan. The device is affixed to the ceiling and to the post from which the fan housing is suspended, such that air containing pollutants that is pulled upward across the diameter of the fan blades, passes through the device.

Abstract: A power take-off device for employing the power of a prime mover originally provided for propelling a watercraft to drive equipment other than the watercraft. The stern-side end of an impeller shaft rotated by the prime mover for propulsion is extended outward beyond the impeller to be exposed in view. This extended portion provides a coupling engaging removably with an input coupling to a drive gear on aforesaid equipment.

Abstract: The specification discloses a combined rope and fish net guard for use on large ocean going marine vessels. A rope guard extends outwardly from the stern frame to closely overlap the propeller hub. The propeller hub defines an annular groove underlying the rope guard. A cutting ring is mounted on the inner cylindrical wall of the rope guard and extends inwardly into the annular groove. The cutting ring is equipped with bidirectional cutting edges or teeth.

Abstract: A device is described with two flat bars that link around an outboard motor housing and connect to a blocking cylinder to prevent rotation or removal of a propeller.

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 method and device for reducing the pollution of the air in a room equipped with a ceiling fan having one or more rotating blades comprising covering at least one blade of the fan with porous dust-absorbent material whereby movement of the fan blades removes pollution from the room air.

Abstract: An anti-theft device for a marine propeller has a spinnerplaced over the propeller nut which secures the propeller to the propeller shaft, and the spinner is held in place against unauthorized removal by a lock pin projecting from the propeller nut into an annular recess in the spinner, enabling the spinner to spin freely relative to the propeller nut while capturing the spinner against axial movement which would expose the propeller nut for unauthorized wrenching, the spinner including a radially extending access passage for gaining access to the lock pin with an authorized drive member to move the lock pin out of the annular recess for selective release of the spinner from the propeller nut and authorized access to the propeller nut for wrenching.

Abstract: A fish line and weed cutting arrangement for a marine propulsion lower unit wherein the cutting member may be formed from sheet metal or the like and is positioned between the propeller and thrust taking member. The propeller is formed with a recess that receives and rotatably couples the fish line and weed cutting member and which does not interfere with the axial positioning of the propeller on the drive shaft.

Abstract: Wind-powered apparatus for applying a powdered substance over a given area including a housing designed to receive a quantity of the powdered substance, a sieve located within the housing and a wind motor assembly. The powdered substance is contained within the housing above the sieve. The wind motor assembly is rotatably received by the housing and extends through the housing. The wind motor assembly includes a center pole, a hub located on top of the center pole, a plurality of blades attached to the hub by spokes, a flexible plate which is attached to the bottom end of the pole beneath the sieve, a counterweight assembly and a scraper bar. The counterweight assembly and scraper bar are attached to the plate. As the wind acts on the blades and rotates the wind motor assembly, the scraper contacts and vibrates the sieve. This releases the powdered substance for distribution over the given area by the wind.

Abstract: A lower unit for a marine propulsion device, which lower unit comprises a drive shaft housing having a lower end, a gear case housing connected to the lower end of the drive shaft housing, a propeller shaft located in and extending axially through the gear case housing, a member for rotatably supporting the propeller shaft inside the gear case housing, which member is located in the gear case housing, which is in encircling relationship to the propeller shaft, and which includes therein an open area in communication with the environment outside of the gear case housing, a sacrificial anode in the open area, and a fastener for releasably securing the sacrificial anode in the open area.

Abstract: Several embodiments of propeller constructions employing an improved fish line and weed cutting device that extends into a recess formed in the lower housing. In each embodiment, the cutting member is disposed radially inwardly of the recess to define a gap and one or more projections extend outwardly from the cutting member to fill the gap and define a narrow area that will prevent the entry of fish lines into the opening of the lower unit that defines the recess.

Abstract: A device mounted in encircling relation to a propeller shaft. The device cuts lines, nets and weeds, thus preventing entanglement of the propeller and preventing entanglement damage which may result to the parts of the driven assembly of outboard motor and inboard/outboard motor vessels. The device includes a non-rotatable, annular cutting member, having one double-edged cutting blade, that is disposed in sandwiched relation to two rotatable annular members. One of the rotatable members carries no cutting blades, and the second rotatable member carries three double-edged, circumferentially spaced blades that individually cooperate with the non-rotatable blade in a shearing action. The blade-carrying rotatable member includes a concentric mounting ring that is offset toward the propeller shaft housing, and the offset defines a centrally apertured projecting portion which aperture is in the form of a tapered seat that mates with a corresponding taper formed on the propeller shaft.

Abstract: A marine propeller locking device for securing a propeller to the drive shaft of a marine engine. The locking device includes a suitable retaining nut, exterior cover covering the retaining nut and preventing access, and a retaining bolt for mounting the cover on the retaining nut. A cylindrical surface is provided on the end of the retaining nut which compliments a like surface on the interior portion of the cover. A pair of O-rings are suitably mounted on the surface of the retaining nut and allow the cover to turn with respect to the nut yet maintaining a waterproof seal therebetween. The O-rings are spaced longitudinally a suitable distance to provide transverse support and stability for the cover. The head of the retaining bolt has a specific groove pattern which is matched by a companion wrench so that the bolt cannot be removed by an unauthorized person using common ordinary tools. A cap having a waterproof seal is positioned over the end of the cover so as to seal the internal cavity.

Abstract: A device that shears lines and nets of the type that can befoul propellers, propeller shafts, bearings, running gear and the like of propeller driven sea-going vessels. Lines or nets that can befoul the running gear of propeller-driven sea-going vessels are sheared by the cooperative action of rotatable blade members that are integrally formed with a collar member that is affixed to and rotates conjointly with the propeller shaft, and non-rotatable blade members that are integrally formed with a ring member which is mounted within a U-shaped channel means that is formed in such rotatable collar member. The non-rotating mounting ring may carry a single blade or a pair of diametrically opposed blades, and is maintained in its operative disposition relative to the rotating blades as a result of its slidable mounting in the channel formed in the rotatable collar.

Abstract: A heated ceiling fan comprising a plurality of blades with heating means in each of the blades.

Abstract: A marine propulsion device is provided including a lower unit having a gearcase and a propeller shaft housing located in the gearcase and supporting a propeller shaft for rotation. A propeller is mounted on the propeller shaft rearward portion for common rotation with the propeller shaft. A thrust bushing is carried by the propeller shaft and for transmitting forward thrust from the propeller to the propeller shaft. An annular sacrificial anode surrounds the propeller shaft and is positioned between the thrust bushing and the propeller shaft bearing housing for providing cathodic protection for the rearward end of the gearcase and the propeller shaft bearing housing.

Abstract: A device that shears lines and nets of the type that can befoul propellors, propellor shafts, bearings, running gear and the like of propellor driven, sea-going vessels. A first pair of non-rotatable, diametrically opposed, radially extending cutting blade members are disposed on opposite sides of a keel, or on opposite sides of a strut that depends from the hull of an inboard motor-type boat or ship. Such blade members are provided with respective forwardly extending wedge-shaped projection portions that wedgingly engage respective rearwardly opening wedge-defining base members that are fixedly secured to opposite sides of the keel or the strut. A second pair of rotatably mounted, diametrically opposed, radially extending cutting blade members are disposed on opposite sides of a collar that is affixed to and that rotates conjointly with a propellor shaft, and such second cutting blade members cooperate with the first cutting blade members to effect a shear of troublsome lines and nets.

Abstract: A fan blade, preferably for use with a ceiling fan, is constructed hollow with a top and bottom located so as to provide an air space sufficiently large enough to house one or more germicidal lights, preferably ultraviolet, in such manner that the light will burn while the fan blade rotates. Filtering pads, preferably charcoal impregnated and usually comprised of a plastic foam, are located at the leading and trailing edges of the air space between the top and bottom of the hollow blade for the absorption of smoke and other objectionable odors as the air passes through the lamp area. Preferably the leading edge is provided with pocket means to receive the air. Baffles may be provided to prevent the germicidal light from casting its light outside the confines of the hollow blade. The ends of the blade joining the leading and trailing edges thereof are closed.