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.
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| Number | Title | Issue Date |
| 7371053 | Two-stage hydraulic pump A two-stage hydraulic pump includes a rotor, a ring, and a plurality of rollers disposed in slots formed on the rotor. The pump has two inlet ports and two outlet ports, which are disposed inwardly and outwardly, respectively, of the rollers. A valve mechanism is in... | 05/13/2008 |
| 7229262 | Rotary piston pump end pressure regulation system A rotary piston pump for fluids, wherein the ends of the housing are configured so as to provide reduced pressure differentials between opposite sides of the rotor end disks. ... | 06/12/2007 |
| 7207782 | Vacuum pump A rotating vane vacuum pump has a secondary inlet (4) which permits additional suction after the primary inlet (3) has closed. ... | 04/24/2007 |
| 7083394 | Vane pump with undervane feed A vane pump is disclosed for use with gas turbine engines which has pressurized fluid supplied to the undervane portion of the vane elements to balance the forces imparted thereon. The vane pump includes a pump housing, a cam member, a cylindrical rotor member and a... | 08/01/2006 |
| 7070399 | Variable displacement pump with a suction area groove for pushing out rotor vanes A variable displacement pump has a cam ring, a rotor, a plurality of vanes, a pressure plate and a rear body. The cam ring is accommodated within a pump body. The rotor rotates within the cam ring. The plurality of vanes are inserted retractably into slits formed at... | 07/04/2006 |
| 7040872 | Rotary fluid machinery Pistons (41) are slidably received in a plurality of cylinders (39) disposed radially in a rotor (31), and a plurality of vanes (42) cooperating with the pistons (41) are disposed radially in the rotor (31), so that a vane c... | 05/09/2006 |
| 7037086 | Self-priming centrifugal pump A self-priming centrifugal pump comprises an inlet and an outlet, and a centrifugal impeller for receiving liquid from the inlet and delivering it to the outlet. An inlet valve and an outlet valve are provided, and a diaphragm arrangement is driven by the same motor... | 05/02/2006 |
| 7025557 | Secondary flow control system The present invention is a system (20) for controlling various fluid flows, e.g., secondary fluid flows including cavitating fluid flows, typically developed along the shroud line and usually in or around a leading edge (21) within a flow channel (2... | 04/11/2006 |
| 6913446 | Method for improving the efficiency of a variable displacement pump An auxiliary solenoid controlled variable displacement power steering pump, hydraulic systems incorporating same, and method for improving the efficiency of variable displacement power steering pumps. In one embodiment, a rotor is arranged within a pump body, and a ... | 07/05/2005 |
| 6846163 | Rotary fluid machine having rotor segments on the outer periphery of a rotor core In a rotary fluid machine including pistons (37) reciprocally received in cylinders (33) provided in a rotor (27), and vanes (44) fitted in vane grooves provided in the rotor (27) for reciprocal movement, the rotor (27) incl... | 01/25/2005 |
| 6537047 | Reversible variable displacement hydraulic pump and motor A compact high efficiency vane pump is disclosed having a unique T-shaped vane and rotor slot configuration with a roller tip vane in a uniquely configured chamber. To minimize friction in chamber diameter, a pressure plate is provided which is hydraulica... | 03/25/2003 |
| 6503068 | Variable capacity type pump In a variable capacity type pump, in the inner diameter of a cam ring, an inner diameter of a portion forming a middle section between a suction section and a discharge section in a pump chamber is constituted by a negative slope curve in which an end por... | 01/07/2003 |
| 6464482 | Mechanically driven roller vane pump The invention relates to a roller vane pump suitable for pumping transmission fluid in an automatic transmission for motor vehicles. The pump is provided with a pump housing (2), a rotatable carrier (3) being located in the interior of the pump housing (2... | 10/15/2002 |
| 6447277 | Mechanically driven roller vane pump with channels between corresponding cam and carrier chambers The invention relates to a roller vane pump suitable for pumping transmission fluid in an automatic transmission for motor vehicles. The pump is provided with a pump housing (2), a rotatable carrier (3) being located in the interior of the pump housing (2... | 09/10/2002 |
| 6416303 | Mechanically driven roller vane pump with aperture end parts providing for gradual pressure changes in the pump chambers The invention relates to a roller vane pump suitable for pumping transmission fluid in an automatic transmission for motor vehicles. The pump is provided with a pump housing (2), a rotatable carrier (3) being located in the interior of the pump housing (2... | 07/09/2002 |
| 6413066 | Mechanically driven roller vane pump with aperture end parts providing for gradual pressure changes in the pump chambers The invention relates to a roller vane pump suitable for pumping transmission fluid in an automatic transmission for motor vehicles. The pump is provided with a pump housing (2), a rotatable carrier (3) being located in the interior of the pump housing (2... | 07/02/2002 |
| 6382924 | Mechanically driven roller vane pump with enlarged surface area of the apertures The invention relates to a roller vane pump suitable for pumping transmission fluid in an automatic transmission for motor vehicles. The pump is provided with a pump housing (2), a rotatable carrier (3) being located in the interior of the pump housing (2... | 05/07/2002 |
| 6244830 | Vane-cell pump A vane-cell pump, has a rotor that is arranged in a lifting ring that forms at least one suction region and one pressure region. Radial slots extend over the entire width and are arranged on the circumferential surface of the rotor. Vanes are arranged in ... | 06/12/2001 |
| 6164932 | Aquarium pump for use both as an air pump and a water pump and aquarium apparatus with a passage aquarium An aquarium pump for use both as an air pump and a water pump, includes an electromagnet, a diaphragm reciprocally driven by the electromagnet, an outer casing in which said electromagnet and said diaphragm are accommodated, an inlet and an outlet each ou... | 12/26/2000 |
| 6152711 | Roller vane pump having a suction port through the cam ring The invention relates to a roller vane pump for operating an automatic transmission for motor vehicles. The pump is provided with a pump housing (12), a rotor (4), a cam ring (2) and roller elements (7), which define a number of pump chambers (13). Fluid ... | 11/28/2000 |
| 6113370 | Rotary vane machine The invention provides a rotary-vane machine having a stationary shell including a casing member (2), a camming ring (4) having an internal, noncircular camming surface (6), and a flange member (8); a rotor (10) including at least two first vanes (12) fix... | 09/05/2000 |
| 6099281 | Variable displacement/load device This design utilizes spherical balls that function as pumping members and also function as bearing loads. The housing includes channels that are used to convert rotary motion to true linear reciprocating motion relative to the center of operation by use o... | 08/08/2000 |
| 6099261 | Roller vane stage for a fuel pump A roller vane stage (10) for a fuel pump (80) includes an inlet plate (12), an outlet plate (14), and a spacer (16) held therebetween, the spacer having an eccentric inner surface (20) defining a rotor space (18) therein. The roller vane stage (10) furthe... | 08/08/2000 |
| 5961302 | Liquid-sealed vane oscillator A liquid-sealed vane oscillator includes a housing defining a cavity corresponding to part of a virtual annulus centered around, and extending at least 180° about, an axis of rotation and delimited by first and second ends. A vane is mounted rotatably wi... | 10/05/1999 |
| 5833438 | Variable displacement vane pump having cam seal with seal land A variable displacement vane pump comprising a durable rotor member having journal ends at each side of a larger diameter central vane section comprising vane slots having well areas which slidably-engage a mating vane element. The present vane pump compr... | 11/10/1998 |
| 5738500 | Variable displacement vane pump having low actuation friction cam seal A variable displacement vane pump comprising a durable rotor member having journal ends at each side of a larger diameter central vane section comprising vane slots having well areas which slidably-engage a mating vane element. The present vane pump compr... | 04/14/1998 |
| 5545014 | Variable displacement vane pump, component parts and method A durable, single action, variable displacement vane pump capable of undervane pumping, components thereof, and pressure balancing method. The pump comprises a cylindrical barstock rotor member having large diameter journal ends and central vane slots uni... | 08/13/1996 |
| 5529460 | Pressure washer with flow control switch A pressure washer is provided with a flow control switch and a bypass passage. The flow control switch shuts the motor of the pressure washer off when fluid is not being supplied to the pressure washer or when the spray gun of the pressure washer is close... | 06/25/1996 |
| 5443376 | Lubricating device for horizontal type rotary compressor A lubricating device for a horizontal type rotary compressor having an oil pumping chamber formed under the vane in the compression cylinder. The oil pumping chamber is provided in the compression cylinder under the vane and has an oil inlet port and an o... | 08/22/1995 |
| 5363740 | Fluid motor/pump with scavenged case A fluid device (pump or motor) comprises a case having a closed chamber, a rotating element mounted for rotation within the closed chamber, a reciprocating piston drivingly connected to the rotating element such that rotation of the rotating element corre... | 11/15/1994 |
| 5271720 | Rotary vane pump with supplemental pumping means A vane pump has a plurality of outwardly spring loaded vanes mounted within slots respectively formed in a rotor. The internal surface of the stator of the pump is of cylindrical form, and end plates at the opposite ends of the rotor and stator have inlet... | 12/21/1993 |
| 5235945 | Rotary engine system The power and compressor units of an internal combustion rotary engine system utilize a rotor assembly, concentrically mounted on a stationary distributor core member, for rotation about an axis eccentric to the central axis of a cylindrical cavity that p... | 08/17/1993 |
| 5217357 | Rotary vane pump with removable particulate collection chamber A rotary vane pump has a hollow rotor and a stationary liquid distributor member within the hollow rotor center, within which member plural supply and discharge fluid paths are provided. An elliptical housing allows for any one pumping chamber defined bet... | 06/08/1993 |
| 5188516 | Hydraulic/pneumatic pump A hydraulic/pneumatic pump for an aquarium includes a motor having an upper output shaft enclosed by an upper casing and a lower output shaft enclosed by a lower casing, a hydraulic pump assembly driven by the lower output shaft, and a pneumatic pump asse... | 02/23/1993 |
| 4792285 | Injection pump A fuel injection pump includes a pumping section that is segregated from the drive mechanism to permit independent lubrication of the latter, thereby avoiding any need for reliance upon the fuel supplied for that purpose. Generally, the unit will have two... | 12/20/1988 |
| 4722652 | Hydraulic vane type pump A vane type pump suitable for a hydraulic system comprises passages communicating with the underside of the vanes in the inlet quadrant with the surrounding of the drive shaft and passages communicating the underside of the vanes in the discharge quadrant... | 02/02/1988 |
| 4697990 | Variable capacity vane pump with means to vary the area of overlap The invention relates to a vane pump having input and output slot means. Either the input slot means or the output slot means are designed such that for a movement of the cam ring into a position of zero excentricity the area of overlap between the input ... | 10/06/1987 |
| 4616728 | Power steering device A power steering device including a vane type oil pump having vanes which are radially movable in slits of a rotor to supply hydraulic fluid from an oil reservoir tank to a power cylinder through a flow passage switching valve. Chambers are defined behind... | 10/14/1986 |
| 4578948 | Reversible flow vane pump with improved porting A reversible flow vane pump having a pump case with a pump chamber in which a rotor is mounted. The rotor has outwardly-opening slots which carry vanes which engage a cam ring and with fluid chambers between vanes. The cam ring can be adjusted to position... | 04/01/1986 |
| 4553903 | Two-stage rotary compressor A two-stage rotary compressor makes use of a piston-vane arrangement where both stages are built end to end and where the same members (piston-vanes) work for both stages, the "axial pistons" of the second stage becoming the dividing "vanes" in the first ... | 11/19/1985 |
