Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 5178516 | Centrifugal compressor A centrifugal compressor has diffusers which convert a high velocity, low pressure stream of fluid which flows out of an impeller to a high-velocity high-pressure flow due to the action of a purality of stator blades disposed near the outer periphery of t... | 01/12/1993 |
| 5167489 | Forward swept rotor blade A rotor blade includes a root, tip, leading edge, trailing edge, forward surface, and aft surface, and a pitch section disposed equidistantly between the root and tip. The blade has a forward sweep from at least the pitch section to the blade tip relative... | 12/01/1992 |
| 5165850 | Compressor discharge flowpath A compressor discharge flowpath for a gas turbine engine includes flowpath outer and inner walls joined to a plurality of circumferentially spaced flowpath dividers extending therebetween. An inner support extends from the inner wall and is joined to a tu... | 11/24/1992 |
| 5161947 | Fan case strut for turbomachine An axial flow turbomachine's engine core (16) and radially outwardly disposed fan case (18) are joined together with a radially extending segmented fan case strut (10). The strut (10) is segmented into a radially inner portion (20) and a radially outer po... | 11/10/1992 |
| 5135046 | Heating and/or air conditioning apparatus for a motor vehicle, having two air fans The invention relates to heating and/or air conditioning apparatus for the cabin of a motor vehicle, of a kind in which two separate fans deliver air into a common housing through which the air is passed to a heat exchanger. The object of the invention is... | 08/04/1992 |
| 5133638 | Centrifugal pump diffuser ring assembly This invention relates to a unitary centrifugal fluid fuel pump diffuser ring assembly for use between a low pressure source of fluid on a fluid input side of the diffuser ring and a high pressure fluid exit side of the diffuser ring. In the preferred emb... | 07/28/1992 |
| 5125797 | Portable water driven high velocity fan A portable water driven high velocity fan. Contained in a cylindrical housing is a turbine body in which a plurality of cylindrical or part cylindrical and part conical nozzles are provided. The nozzles make an angle of about 10 to 30 degrees with the noz... | 06/30/1992 |
| 5123811 | Supersonic centrifugal compressor A supersonic centrifugal compressor comprising an impeller (2), a plurality of vanes (13) radially extending in the impeller to form a plurality of radially extending flow channels therebetween, and a diffuser (3) circumferentially surrounding the impelle... | 06/23/1992 |
| 5102298 | Axial flow turbine An axial flow turbine, whose outlet rotor blades (12) are followed by a diffuser (13), has first means (8) within the retardation zone of the diffuser for swirl removal from the swirling flow. A row with adjustable guide vanes (11) is arranged between these fi... | 04/07/1992 |
| 5077967 | Profile matched diffuser A method of diffusing airflow includes diffusing first and second airflow portions at first and second diffusion rates, respectively, which are unequal for improving pressure recovery. An exemplary diffuser for practicing the invention includes first and ... | 01/07/1992 |
| 5078574 | Device for minimizing room temperature gradients Floor to ceiling room temperature gradients are minimized by a portable floor mounted upstanding tubular unit having air intake ports adjacent the bottom, an open top with air directing louvers, and an electric motor driven fan having blades spanning the ... | 01/07/1992 |
| 5074751 | Fan casing A centrifugal fan including a fan wheel and a driveshaft for rotating the wheel in a housing. The fan wheel has an axial center and outer edge portions around the radially outermost extremities. The housing is formed of right and left unitary housing halv... | 12/24/1991 |
| 5066194 | Fan orifice structure and cover for outside enclosure of an air conditioning system A fan orifice structure and cover intended for use in conjunction with the outside enclosure, usually containing the outside heat exchanger and compressor, of an air conditioning system. The orifice features relatively complex contours that enhance fan ef... | 11/19/1991 |
| 5064344 | Partial throat diffuser A centrifugal fluid handling apparatus such as, for example, a centrifugal fuel pump for, for example, an aircraft engine, which includes a impeller rotatably mounted in a housing, with an annular diffuser ring being disposed about a periphery of the impe... | 11/12/1991 |
| 5062766 | Turbo compressor A single-shaft multi-staged turbo compressor capable of compressing a gas at a large flow rate and with a high pressure ratio has a first impeller group composed of at least one oblique-flow impeller and a second impeller group composed of at least one ce... | 11/05/1991 |
| 5011371 | Centrifugal compressor/pump with fluid dynamically variable geometry diffuser A centrifugal fluid machine such as a pump or compressor has a diffuser with fixed vane geometry which provides significantly increased range, as compared to conventional fixed geometry diffusers, by developing what appear to be flow accelerating stall bu... | 04/30/1991 |
| 5011372 | Aeration apparatus for pond A high volume aeration device comprises a motor and propeller tube suspended in a pond by a float. A propeller on the motor shaft and inside the propeller tube creates a generally hollow water output stream that rises out of the propeller tube. A diffuser... | 04/30/1991 |
| 4971143 | Fan stator assembly for heat exchanger A stator row is disposed between a propeller fan and a heat exchanger coil, such as the outdoor or condenser coil of a packaged terminal air conditioning unit. The stator row is situated against the heat exchanger coil on the fan facing side. The stator r... | 11/20/1990 |
| 4966523 | Two-row pipe diffusers with boundary layer control A diffuser for a radial flow compressor includes a pair of coaxial rings, the second of which closely surrounds the first. A set of intersecting flow passages extends through the first ring, and another aligned set of flow passages extends through the sec... | 10/30/1990 |
| 4946348 | Centrifugal fan with airfoil vanes in annular volute envelope A rearwardly curved centrifugal blower having an annular envelope around the impeller, so that the rotating impeller draws air in through a central inlet and forces it radially outward into the envelope and out of an annular discharge. Multiple airfoil va... | 08/07/1990 |
| 4944654 | Split scroll for centrifugal blower A split scroll diffuses and directs air upwards from the circumference of a forwardly-curved centrifugal fan to a discharge plane to one side of the fan. The scroll has a first monotonically increasing curved wall that extends from a cutoff point near the... | 07/31/1990 |
| 4932835 | Variable vane height diffuser A diffuser vane assembly for a centrifugal compressor includes movable vanes which are inserted or retracted from the diffuser passage through slots in one of the diffuser walls. The vane assembly is axially movable by an internally threaded drum and gear... | 06/12/1990 |
| 4932144 | Remote underwater excavator and sampler An underwater excavator in which when energized by a supply of hydraulic oil or other means a propeller is set in motion with water being drawn through a water intake into a cylindrical tube and expelled at the water outlet to create a flow of water of su... | 06/12/1990 |
| 4927324 | Ducted fan 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... | 05/22/1990 |
| 4842481 | Fluid pumps A fluid pump has an impeller rotatably mounted within the pump chamber, an inlet flow guide directs incoming fluid to the impeller vanes and an outlet flow guide between the impeller and the outlet of the pump chamber completes the change of the direction... | 06/27/1989 |
| 4802821 | Axial flow turbine In an axial flow gas turbine with reaction blading, whose outlet rotor blades (14) are followed by a diffuser with axial outlet into an exhaust gas pipe (13), the kink angles of the diffuser inlet both at the hub (10) and at the cylinder (9) are fixed exc... | 02/07/1989 |
| 4712977 | Axial fan The novel axial fan may have a cylindrical shroud, an impeller mounted coaxially within the shroud, and a bell-shaped deflector extending across the exhaust to redirect the airflow toward radially outward directions. A malleable blank may be cut and shape... | 12/15/1987 |
| 4712611 | Heating or air-conditioning ventilation unit for motor vehicles A ventilation unit for heating or air-conditioning in a motor vehicle. The unit includes a blower and a heat exchanger, with a diffuser positioned in the flow of air from the blower. The diffuser spreads the air flow so that it substantially covers the he... | 12/15/1987 |
| 4694645 | Propeller assembly A propeller assembly, a so-called rotatable thruster, for propelling, manoeuvering, steering and/or positioning a watercraft, floating docks, pontoons and in particular offshore platforms, includes a propeller (1) having an embracing propeller shroud (2) ... | 09/22/1987 |
| 4679983 | Water pump for window washer unit The invention relates to a water pump for a window washer unit of a vehicle. The pump has a reversible motor, one inlet port and two outlet ports and is arranged to deliver water selectively to either one of the two outlet ports in dependence upon the dir... | 07/14/1987 |
| 4634342 | Blower for agricultural spraying An air blower (particularly for agricultural spraying purposes) comprises a fan, an annular fan housing, a curved air deflector downstream of the fan, and a curved air-flow divider. The fan housing has a frusto-conical intake section and a curved outflow ... | 01/06/1987 |
| 4529356 | Device for controlling the flow pattern of the exhaust gas of a supercharged internal combustion engine A device for controlling the flow pattern of the exhaust gas of a supercharged internal combustion engine comprises a diverging conduit disposed at the outlet of an exhaust gas operated centripetal turbine, a radially finned conduit portion, a converging ... | 07/16/1985 |
| 4506849 | Helicopter rotor thrust ring A helicopter tail rotor (14) is provided with a thrust ring. The thrust ring comprises an annular airfoil (16) having a circular opening which is aligned coaxially with the rotor (14). The plane of the airfoil (16) is essentially parallel to the plane of ... | 03/26/1985 |
| 4475868 | Free-flow-pump The free-flow pump has an impeller housing (9, 10) laterally of its free flow chamber (4), and the impeller (6) is located in the impeller chamber (9, 10). The external, radial limiting member (10) of the impeller housing is drawn forwardly into the free ... | 10/09/1984 |
| 4391566 | Diffuser and exhaust gas collector arrangement In a gas turbine engine having a diffuser provided downstream of the power section and composed of inner and outer diffuser wall members forming therebetween a diffuser chamber which is open into an exhaust gas collector chamber, the outer diffuser wall m... | 07/05/1983 |
| 4391564 | Exhaust pipe of turbine An exhaust pipe (A) of a turbine has a housing (1). The walls of the housing (1) define a flow duct (2) accommodating therein a baffle (5) whose housing baffle (5) has a side surface (6) which is the surface of a body of revolution about an axis coincidin... | 07/05/1983 |
| 4390319 | Turbine exhaust hood A turbine exhaust hood has a flow passage (2) which accommodates a guide member (6) and a deflector (8). The deflector (8) is made from a resilient material and has, when in initial position, a form of a ring with a radial slit, with the axis of said ring... | 06/28/1983 |
| 4350472 | Electric fan apparatus The present application discloses an electric fan apparatus comprising a fan, a wind direction shifting plate disposed in front of said fan and adapted to be rotated by the pressure of a wind generated by said fan, a rotary shaft disposed at the center of... | 09/21/1982 |
| 4318693 | Axial fan turning diffuser The axial fluid flow fan comprises a shaft, an impeller mounted on said shaft comprising a tankhead and a plurality of blades, a drive means attached to the shaft for rotating the impeller and a deflector having a bugle bell shape defined by a small diame... | 03/09/1982 |
| 4315715 | Diffuser for fluid impelling device A diffuser for a fluid impelling device such as a radial or axial turbine, comprising outer and inner casing members radially spaced apart from each other and thereby forming therebetween a diffuser chamber having annular cross-section which gradually inc... | 02/16/1982 |
