Bizarre Patents
Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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 |
| 8061973 | Turbomachine including an adaptable intake system and method of controlling airflow to a turbomachine A turbomachine includes a compressor having a compressor intake, and an intake system mounted upstream of the compressor intake. The intake system includes a housing and a plurality of selectively positionable vanes arranged within the housing. The plurality of sele... | 11/22/2011 |
| 7372172 | Device and method for the generation of electrical energy Arrangement for generating electrical power from a flowing medium, wherein the arrangement includes a plurality of turbine generator units. At least some of the plurality of generator units are arranged at least one of one above another and one beside another. At le... | 05/13/2008 |
| 7341426 | Gas turbine engine blade tip clearance apparatus and method A gas turbine engine is provided that includes one or more rotor assemblies, one or more shroud segments, and an actuator. The rotor assemblies are rotatable around an axially extending rotational axis, and each rotor assembly has a plurality of blades. Each blade h... | 03/11/2008 |
| 7258523 | Means to regulate water velocity through a hydro electric turbine A hydro electric turbine having a flexible, collapsible front shroud, the upstream open end of the front shroud being controlled by a draw line passing through purse rings, whereby the upstream end can be closed by drawing on the draw line, thereby stopping water fl... | 08/21/2007 |
| 7179054 | Flow reversal system for axial fan An axial fan has a blade support wheel coupled to a drive shaft. A disk is positioned about the drive shaft adjacent the wheel. A torsion spring is coupled to the wheel and to the disk. When the torsion spring is in tension, the disk is poised for a relative rotatio... | 02/20/2007 |
| 7114918 | Fish friendly hydraulic turbine distributor A hydraulic turbine has a distributor located between the scroll of the turbine and its runner. The distributor has upper and lower stay ring portions with stay vanes extending therebetween. A plurality of movable wicket gates control flow of liquid through the dist... | 10/03/2006 |
| 6996937 | Potential energy storage system The present invention relates to a system for generating electrical power using hydraulic supports on which a building structure is mounted. A pump injects fluid into the supports to raise the building structure and thereby store energy in the elevated structure. A ... | 02/14/2006 |
| 6966747 | Wind turbine having airfoils for blocking and directing wind and rotors with or without a central gap A wind turbine device of increased efficiency is comprised of a set of fixed airfoils that direct wind into a rotor having a plurality of blades. The fixed airfoils may extend to the ground to increase the amount of wind directed into the rotor and may be manufactur... | 11/22/2005 |
| 6955524 | Necklace fan A personal fan has a stable mounting base with a bottom surface adapted to lie against the chest of a wearer and a top surface. The stable mounting base is in the form of a weighted shallow robust body having a length and breadth substantially greater than its thick... | 10/18/2005 |
| 6832888 | Molecular pump for forming a vacuum A molecular pump for exhausting a chamber has a casing, a stator mounted in the casing, and a rotor mounted in the casing for undergoing rotation relative to the stator during exhaustion of the container. The rotor has a surface disposed opposite to and confronting ... | 12/21/2004 |
| 6824354 | Pump with selectable suction ports A circulator pump-motor unit which has an impeller assembly that can selectively tilt between two positions is disclosed. Each of the two positions corresponds to aligning a suction port with one of two inlet ports. The unit can be used to, for example, change the p... | 11/30/2004 |
| 6685446 | Monodirectional impeller with flexible vanes A monodirectional impeller for centrifugal electric pumps having a permanent-magnet synchronous motor, having vanes which are deformable at least along part of their extension so as to change their curvature, when loaded, in one direction of rotation, so ... | 02/03/2004 |
| 6565328 | Self aligning cartridge pump A self-aligning cartridge pump 10 is provided including a pumping mechanism 24, a curved upper plate 30, and a retaining ring 32. The curved upper plate 30 is in communication with the retaining ring 32 such that the self-aligning cartridge pump 10 can pi... | 05/20/2003 |
| 6049655 | Dashboard mounted fan apparatus with pivotally mounted fans 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 t... | 04/11/2000 |
| 5971702 | Adjustable compressor bundle insertion and removal system A rotary machine, such as a compressor, includes a casing having an annular cavity. The cavity is stepped to include a first circumferential surface of a first size and a second circumferential surface of a second size, less than the first size. At least ... | 10/26/1999 |
| 5800120 | Pump impeller with adjustable blades The pump has an impeller with a retractable component, which, when moved, exposes more or less of the impeller blades, thereby varying the pumping action. The pump has rotor and stator sleeves with complementary tapered surfaces, in which a groove conveys... | 09/01/1998 |
| 5624226 | Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump A vertical-shaft multi-stage pump has adjustable vanes on its lower stage. A vane angle operating mechanism has an operating shaft extending through a hollow portion of the drive shaft of the upper stage and a link mechanism connected to the operating sha... | 04/29/1997 |
| 5489189 | Turbo-engine having a variable pitch propeller The invention relates to turbo-engine having a variable-pitch propeller. An adjustment spindle is disposed inside the shaft that carries the variable-pitch propeller. The adjustment spindle is connected to a step-down transmission, which is affixed in the... | 02/06/1996 |
| 5470199 | Adjustment device for propeller pumps The invention relates to an adjustment device for variable-pitch propellers or turbo-engines. A drivable rotor is mounted on a hollow flange of a shaft that is connected to the variable-pitch propeller. The rotor is rotatably mounted on the hollow flange,... | 11/28/1995 |
| 5468124 | Portable electric fan 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 ... | 11/21/1995 |
| 5466121 | Hydraulic adjustment device A hydraulic adjustment device for variable-pitch propellers of turbo-engines comprise a shaft for driving the variable-pitch propeller. A plurality of transmission elements for feeding and draining, as well as for guiding a hydraulic fluid is disposed in ... | 11/14/1995 |
| 5330320 | Method and a device in a rotating machine A method and a device for controlling the blade tip clearance in a rotating machine where the machine comprises a turbine part and a compressor part separate from the turbine part and the stator housing of the turbine part is formed with a stator cone. Th... | 07/19/1994 |
| 5209632 | Hydroelectric power generation equipment A hydroelectric power generator equipment includes a hydraulic turbine which has a runner with blades adjustable of opening thereof and a hollow turbine shaft mounting thereon the runner, a power generator having a hollow shaft connected to the turbine sh... | 05/11/1993 |
| 5039286 | Electrically-driven rotary pump A centrifugal pump, intended for pumping liquids, includes a impeller (1) connected in rotation to a rotor (7) with a permanent magnet that is part of a synchronous motor. The rotor (7) which has an axial clearance (L) is accommodated in a cylindrical hou... | 08/13/1991 |
| 4934901 | Pitch change actuation system A self-locking pitch change actuator is configured to fit within an annular hub (34). A ring gear (40) is driven circumferentially by a tangentially oriented ballscrew (42) and traveler (44). The ballscrew (42) is driven by a hydraulic motor (50) controll... | 06/19/1990 |
| 4925363 | Blade ring rollout roller A roller structure for a rotary machine has a plate that is removably engagable with the outer casing of such rotary machines, a shaft portion attached to the plate and insertable through the outer casing, a bearing mounted for rotation upon the shaft por... | 05/15/1990 |
| 4822241 | Automatic dishwasher with a pump having a selectively adjustable impeller clearance An automatic dishwasher includes a cabinet enclosing an interior washing chamber with a pump mounted in the cabinet for pumping liquids into and out of the washing chamber. The pump includes a housing having spaced apart walls and a rotatable motor shaft ... | 04/18/1989 |
| 4810164 | Pitch change arrangement for a variable pitch fan A pitch arrangement for a variable pitch fan assembly of a turbofan gas turbine engine comprises a plurality of fan blades, each of which has a root portion rotatably mounted, in a thrust bearing on a fan rotor. A control ring is arranged coaxially with a... | 03/07/1989 |
| 4799437 | Heating stove which includes a pyrolysis gasifier A blower apparatus (18) for use in a gasifier and burner combination, the blower including a housing (60) which includes an inlet for gas from the gasifier and an exit nozzle (64) leading to the burner. A vertical blower shaft (66) extends up into the hou... | 01/24/1989 |
| 4718823 | Pitch changing mechanism for fan blades A non-rotating actuating system for pitch control of a fan in a bypass turbine engine in which the actuating sleeve, that rotates with a fan and is moved axially to change to the pitch ofthe fan blade, is supported by a part of the fixed structure thereby... | 01/12/1988 |
| 4662819 | Centrifugal fan with variable blade pitch A centrifugal fan includes a fan wheel having airfoil blades mounted for pivotal movement about their center of gravity. A yoke mechanism exterior of the fan wheel, when moved axially of the fan wheel drive shaft axis, causes actuator rods to move through... | 05/05/1987 |
| 4639190 | Tubular water wheel An operating rod is connected at its one end to a runner vane rotary shaft through a link and lever mechanism. The operating rod is supported by a rotational propelling force bearing. The rotational propelling force bearing is reciprocatingly moved throug... | 01/27/1987 |
| 4634341 | Axial flow fans There is disclosed an axial flow fan having blades which may be rotated about their axes to permit their pitches to be adjusted and which may be moved in a radial direction to adjust the clearance between their tips and the fan ring in which they rotate.... | 01/06/1987 |
| 4618310 | Method of multi-stage compressor surge control As an improvement in an anti-surge control method for a multi-stage centrifugal compressor having interstage coolers, this invention comprises, when there is an imbalance of stage flows relative to surge, replacing recycle with warm expanded gas to the ma... | 10/21/1986 |
| 4540335 | Controllable-pitch moving blade type axial fan An axial fan of the controllable-pitch moving blade type, equipped with a controllable-pitch moving blade mechanism capable of changing the setting angle of the blades during operation, includes a casing treatment embedded in the inner wall of the casing ... | 09/10/1985 |
| 4524980 | Intersecting feather seals for interlocking gas turbine vanes A feather seal construction that interlocks a pair of feather seal elements that fit into intersecting slots. Each interlocking element is restrained axially but permits relative limited rotary motion. One of the elements is recessed with diametrically op... | 06/25/1985 |
| 4523434 | Air ventilator An air ventilator for ventilating indoor air to the environment comprising a motor provided with a shaft, a rotor mounted on said shaft, a plurality of fan blades pivotally attached to the rotor, a rotating circular plate having a plurality of sliding slo... | 06/18/1985 |
| 4521158 | Fluid-flow machine A fluid-flow machine, particularly of the hydraulic propeller-pump type, comprises a central hub, a bearing support fixed to the hub for rotation therewith, a plurality of blades distributed symmetrically around the hub, each blade having a pivotable blad... | 06/04/1985 |
| 4468153 | Symmetric tidal station A tidal station includes a plurality of turbine/generator sets removably insertable along the central axis of a caisson to provide a symmetrical installation. Fixedly disposed basin side and sea side diffusers include inlets alternately juxtaposed opposit... | 08/28/1984 |
| 4412783 | Centrifugal fan wheel with changeable pitch blades A centrifugal fan wheel is provided with blades 10 which may have their pitch changed through circumferential movement of a ring 30 tied to an outer tube 28 encompassing a drive shaft 24 and capable of having its rotative position relative thereto changed... | 11/01/1983 |
