Bizarre Patents
A gun that fires a missile, powered by gas "discharged by the operator of the toy."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6375416 | Technique for reducing acoustic radiation in turbomachinery Apparatus for reducing acoustic radiation which occurs during the operation of turbomachinery includes a shroud having a generally cylindrical inner surface and a coaxial rotor having a plurality of blades extending generally radially outwardly at equally... | 04/23/2002 |
| 5913659 | Apparatus and method for adjusting rotor blade tracking A helicopter rotor has two or more blades which extend from a hub and has an adjustment mechanism for adjusting the lead/lag variation of the blades which typically occur due to manufacturing tolerance variations or to changes which occur through operatio... | 06/22/1999 |
| 5857833 | Compressor with particle separation An air compressor with porous surfaces to separate particles from air flowing therethrough, using curvilinear flow paths to effect the same.... | 01/12/1999 |
| 5775876 | Ceiling-fan-blade-mounted air freshener apparatus A ceiling-fan-blade-mounted air freshener apparatus includes a housing assembly which includes a lower housing portion and an upper housing portion projecting upward from the lower housing portion. The upper housing portion includes a plurality of vent ap... | 07/07/1998 |
| 5755557 | Axial flow fan An axially compact axial flow fan with improved air-moving properties has a first array of fan blades that extend radially from a fan hub to a circumferential blade support member, a second array of fan blades extend from the first support member to a rad... | 05/26/1998 |
| 5735670 | Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction (BVI) noise A Variable Diameter Rotor (VDR) system (4) having telescoping odd and even blade assemblies (Ob, Eb) wherein the odd blade assemblies define a radial length RO and the even blade assemblies define a radial length RE. | 04/07/1998 |
| 5713719 | Self flushing centrifugal pump A self flushing centrifugal pump has a fluid flushing passageway disposed in a housing of the pump which directs flushing fluid flow from a volute passageway in the housing of the pump near an outlet port of the pump to a chamber in the pump near a pump s... | 02/03/1998 |
| 5709529 | Optimization of turbomachinery harmonics A turbomachine assembly includes a number of circumferentially spaced rotor blades, a number V of circumferentially spaced guide vanes axially adjacent to the rotor blades, an annular chamber surrounding the rotor blades, and an intake and exhaust for rec... | 01/20/1998 |
| 5690469 | Method and apparatus for replacing a vane assembly in a turbine engine A repair kit for replacing an unserviceable vane assembly in a turbine engine includes a serviceable vane subassembly 120 having a serviceable airfoil 124 with a base 134 attached to the root end thereof and an opposing base 156 which is unattached to but... | 11/25/1997 |
| 5660524 | Airfoil blade having a serpentine cooling circuit and impingement cooling An airfoil blade, such as a jet engine turbine rotor blade. An internal serpentine coolant circuit has a last downstream passageway bounded by four monolithic inner walls which are monolithic with at least a portion of the outer walls. Two of the inner wa... | 08/26/1997 |
| 5657833 | Self-contained unitized lubricant delivery apparatus Self-contained lubricant delivery apparatus for crushing unitized lubricant elements and delivering flowable lubricant from the crushed elements to lubricant requiring portions of a die casting machine. The apparatus includes a cylinder body defining a de... | 08/19/1997 |
| 5649807 | Blade configuration for a ventilation fan A structure of a ventilation fan provided with a plurality of blades has a performance curve characterized by a gentle slope throughout the wide operating range instead of an S-hysteresis curve, in order to overcome a fluctuation phenomena of the operatin... | 07/22/1997 |
| 5645399 | Gas turbine engine case coated with thermal barrier coating to control axial airfoil clearance An engine case of a gas turbine engine is selectively coated with a thermal barrier coating to control axial clearance between rotating and stationary airfoils. The coating is applied to the thinner portions of the engine case to retard thermal expansion ... | 07/08/1997 |
| 5645400 | Composite cuff structure for helicopter rotors A composite cuff structure (40) for mounting the root end (14e) of a rotor blade assembly (14) to the radial arms (24a, 24b) of a rotor assembly yoke (24) and for accommodating a twist disparity therebetween. The composite cuff structure (40) is generally... | 07/08/1997 |
| 5645403 | Metal contoured blade with rolled edges at impact surfaces A ceiling fan is disclosed as including a motor and a plurality of fan blades, each of which is a contoured metal blade. Each fan blade has an enlarged leading edge and an end edge, which have been rolled over to establish a thickness of three-sixteenths ... | 07/08/1997 |
| 5641037 | Rail lubrication apparatus The invention is a wiping bar of a rail lubrication apparatus of the type used with a rail having a base with outwardly extending flanges, a head, and a web connecting the base and the head, where the lubrication apparatus is comprised of a wiping bar and... | 06/24/1997 |
| 5639149 | Glass front merchandiser with invisible hinge and seals A glass front merchandiser having a refrigerated cabinet with a product zone normally closed by a glass front panel having a hinging side margin, the glass front panel including an outer glass pane and a structural frame member secured adjacent to the per... | 06/17/1997 |
| 5639208 | Rotary turbine and rotary compressor A rotary turbine employs rotors that are rotated primarily by the frictional forces of a pressurized medium flowing through a gap that separates the rotors from the stationary housing. The rotors are coupled to a source of pressurized medium that creates ... | 06/17/1997 |
| 5638860 | Control valve for initial hydraulic surge pressure A surge pressure control valve for blocking surge pressures that may occur in a fluid line. This surge pressure control valve contains a fluid biased plunger therein that retracts upon the application of fluid pressure. However, the rate of retraction of ... | 06/17/1997 |
| 5638921 | Die mounted unitized lubricant delivery apparatus Lubricant delivery apparatus for crushing unitized lubricant elements and delivering flowable lubricant from the crushed elements to a die casting machine die cavity. The apparatus includes a delivery cylinder on or in one die which opens with the dies fo... | 06/17/1997 |
| 5636708 | Method and device for broad temperature range vapor lubrication Conventional liquid lubrication requires a compromise between high temperature properties for good lubrication and low temperature properties for pumpability. The major thrust of this invention is the preservation of the long life and reliable mechanism o... | 06/10/1997 |
| 5636969 | Torque tube/spar assembly for variable diameter helicopter rotors A torque tube/spar assembly (100) for transferring operational loads of a Variable Diameter Rotor blade assembly (16) to a rotor hub assembly (18) and includes a torque tube member (24), a spar member (30) and a bearing assembly (40a, 40b) for telescopica... | 06/10/1997 |
| 5634770 | Molten metal pump with vaned impeller An elongated shaft suited to a molten metal environment which forms a connection between a rotor and an impeller. The shaft being formed with at least one end, in cross-section, having a plurality of rounded side portions with a relatively large radius an... | 06/03/1997 |
| 5634766 | Turbine stator vane segments having combined air and steam cooling circuits Turbine stator vane segments have inner and outer walls with vanes extending therebetween. The inner and outer walls are compartmentalized and have impingement plates. Steam flowing into the outer wall passes through the impingement plate for impingement ... | 06/03/1997 |
| 5632597 | Thread groove type vacuum pump A thread groove type vacuum pump in which the gap between a rotor and a stator is not subjected to any influence of the rotor temperature and thus the pumping performance does not deteriorate during plasma combustion in a nuclear fusion reactor. The threa... | 05/27/1997 |
| 5633756 | Image stabilizing apparatus A blur suppressing apparatus includes a blur suppressing device movable in an optical path, for suppressing a blur of an image transmitted along the optical path. A mechanical lock is provided for mechanically locking the blur suppressing device, and an e... | 05/27/1997 |
| 5632467 | Valve needle for an electromagnetically actuated valve A valve needle includes a valve needle section which connects the armature section and the valve closing element section, the valve needle section having a solid construction. In order to ensure that the fuel flows in the direction of the valve seat, at l... | 05/27/1997 |
| 5630698 | Converter for providing a liquid at a measurement pressure corresponding to a rotational speed A converter assembly for providing a liquid in a measuring line includes a stationary housing and a component being rigidly connected to the housing. A journal is slidingly supported in the stationary housing and defines a gap disposed between the compone... | 05/20/1997 |
| 5630702 | Arrangement for influencing the radial clearance of the blading in axial-flow compressors including hollow spaces filled with insulating material In an arrangement for influencing the radial clearance of the blading of an axial-flow, highly loaded compressor which essentially comprises a rotor (1) equipped with moving blades (2) and a blade carrier (3) which is equipped with guide blades (4) and is... | 05/20/1997 |
| 5628616 | Downhole pumping system for recovering liquids and gas A downhole pumping system for recovering liquids and gas, comprising a first centrifugal pump having internal features for mixing introduced gas into introduced liquids, and a second centrifugal pump having an intake in fluid communication with a discharg... | 05/13/1997 |
| 5624100 | Device for actuating a control member A throttle valve in a gas conduit (3), such as for example an intake of an internal-combustion engine, is pivotable from an idling position into operating positions by means of a valve shaft (5), the valve shaft (5) carrying an actuator body formed by a m... | 04/29/1997 |
| 5622414 | Refrigerator display cabinet with thermally insulated pivotable all glass front window panel A refrigerator display case having a plurality of insulated glass window panels mounted in side-by-side relation for pivotal movement about an upper horizontal pivot axis. Each of the window panels has a substantially all glass front appearance, unencumbe... | 04/22/1997 |
| 5620306 | Impeller A pressure boost impeller configured for compressing fluids, such as gases and liquids. Such impeller has a front intake area and a rear discharge area, and a hub containing the rotational axis of the impeller. Several blades extend about the hub, with so... | 04/15/1997 |
| 5620304 | Rotor system having alternating length rotor blades and positioning means therefor for reducing blade-vortex interaction (BVI) noise A Variable Diameter Rotor (VDR) system (4) having telescoping odd and even blade assemblies (Ob, Eb) wherein the odd blade assemblies define a radial length RO and the even blade assemblies define a radial length RE. | 04/15/1997 |
| 5620303 | Rotor system having alternating length rotor blades for reducing blade-vortex interaction (BVI) noise A rotor system (4) having odd and even blade assemblies (Ob, Eb) mounting to and rotating with a rotor hub assembly (6) wherein the odd blade assemblies (Ob) define a radial length RO, and the even blade assembl... | 04/15/1997 |
| 5617893 | Vacuum relief valve A vacuum breaker valve assembly is provided including a housing mountable to a transport tank. The housing has a wall defining a passageway through the housing and there is a valve member movable within the housing. Structure is provided for permitting th... | 04/08/1997 |
| 5616000 | Stator of torque converter for vehicles improved to suppress separation of working fluid To suppress a separation of working fluid from the vane surface during operation at and around a fluid coupling condition attained after a substantial completion of torque conversion, the aerofoil and the array of stator vanes of a torque converter for ve... | 04/01/1997 |
| 5616004 | Axial flow fan An axial flow fan has a hub with a back plane that is perpendicular to the axis of hub rotation. The leading and trailing edges of the fan blades that bound the inner region of the respective blades are in general radial alignment with the hub. The leadin... | 04/01/1997 |
| 5613832 | Means for engaging a remote control unit to a ceiling fan A device for engaging a remote control unit to a ceiling fan which has a motor for mechanically actuating blades connected thereto and a rod with a head which extends upwardly from the motor, a fixing element fixedly engaged to the floor and having a C-sh... | 03/25/1997 |
| 5611665 | Marine propeller and method A marine propeller includes a series of releasably affixed blades which allow pitch adjustment. The blades are each secured to different blade disks which are positioned in hub wells and held by positioning pins. The method describes how the blades, which... | 03/18/1997 |
