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| Number | Title | Issue Date |
| 6926176 | Elliptical pick up tube The present invention is generally a flexible tubing to use in such devices as spray bottles, toxic containers, pick up tubes used in medical applications, and in containers in fast food restaurants so that any fluid in the bottom of the container could be immediate... | 08/09/2005 |
| 6905319 | Stator for down hole drilling motor An improved down hole drilling motor suitable for drilling applications. The down hole drilling motor comprising a stator disposed in the tubular housing. The stator includes an internal cavity having one or more lobes. A rotor operatively positioned in the cavity o... | 06/14/2005 |
| 6896497 | Axial compliant means for a scroll machine An axial compliant means for a scroll machine, wherein a second scroll revolves around a first scroll to form multiple compression chambers including a low pressure chamber, a medium pressure chamber and a high pressure chamber with working fluid pressure in them in... | 05/24/2005 |
| 6893239 | Internal geared wheel pump having asymmetric tooth tips The invention relates to an internal geared wheel pump without a filler piece, comprising a housing, an internal geared wheel (3) which rotates in the housing and an external geared pinion (2) which is rotationally mounted in the housing and which mesh... | 05/17/2005 |
| 6881041 | Compressor within motor rotor A compressor comprises a sealed chamber to which a suction pipe and a discharge pipe are communicated, a motor unit fixed in the sealed chamber and consisting of a stator and a rotor for generating rotating force by electromagnetic interaction between the stator and... | 04/19/2005 |
| 6881045 | Progressive cavity pump/motor A progressive cavity pump or motor, particularly suitable for hydrocarbon recovery operations, includes a rotor 20 and a stator 10. Fluid pressure in cavities between the stator and the rotor create torque which rotates the bit. An interior surface of ... | 04/19/2005 |
| 6872063 | Scroll type compressor having an elastic member urging the movable scroll member toward the fixed scroll member A scroll type compressor includes a housing, a fixed scroll member and a movable scroll member. An elastic member is formed in an annular and planar shape and is fixed in the housing on a side of a back surface of the movable base plate so as to slidably contact the... | 03/29/2005 |
| 6872065 | Vane gas compressor having two discharge passages with the same length A gas compressor has a cylinder chamber provided with discharge holes. Openings are in communication with the discharge holes, respectively. Discharge passages having the same length are connected with the openings, respectively. The ends of the discharge passages a... | 03/29/2005 |
| 6863511 | Two-shaft vacuum pump A vacuum pump has two shafts (3, 4) and two rotors (1, 2) which co-operate with each other and which are fixed to the shafts. The rotors are cantilevered on the shafts. The rotors are fixed to the shafts in a manner which is devoid of backlash, even du... | 03/08/2005 |
| 6860730 | Methods and apparatus for unloading a screw compressor A screw compressor is connected to a motor to be driven by the motor even during periods of low compressed air consumption. During such periods, the screw compressor is at least partially unloaded to make it easier and less costly to drive the compressor. The unload... | 03/01/2005 |
| 6860728 | Scroll compressor sealing A scroll compressor comprises a fixed scroll having a spiral-shaped wall body, and a swiveling scroll which has a spiral-shaped wall body and revolves while linking together the two wall bodies; the wall bodies have steps, and side faces of two end plates have high ... | 03/01/2005 |
| 6860729 | Compressor having main and adjustable balancer portions A compressor has a compression unit for compressing gas to a desired pressure, a drive shaft and a balancer. The drive shaft is connected to the compression unit for driving the compression unit. Imbalance on the drive shaft is generated due to movement of the compr... | 03/01/2005 |
| 6857864 | Reversible air motor having three drive chambers An air motor, especially for a screwer, comprises an air rotor which is rotatably supported in a motor cylinder and comprises a plurality of longitudinal slits extending in the longitudinal direction of the rotor for radially guiding lamellae, the air rotor and moto... | 02/22/2005 |
| 6851940 | Gas compressor Disclosed is a gas compressor capable of preventing deformation of a filter used for separating oil contained in a compressed gas. The gas compressor includes a suction port, a suction chamber, a gas compressing portion, a compressed gas releasing portion provided i... | 02/08/2005 |
| 6848891 | Screw compressor having bearings for the drive shaft of the compressor screw and the motor The present invention provides an improved refrigerant compressor comprising an overall casing, an electric motor with a stator and a rotor which is mounted on a drive shaft, and a screw compressor. A compressor screw of the screw compressor is mounted on the drive ... | 02/01/2005 |
| 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 |
| 6843199 | Heat-sensitive odor-emitting component An odor-emitting port is provided in a housing member composed mainly of an inorganic material. An odorous material is contained in the housing member, and the odor-emitting port is sealed with a low-melting metal to constitute a heat-sensitive odor-emitting compone... | 01/18/2005 |
| 6835055 | Rotary vane vacuum pump having a rotor axial seal and an axially bias rotor-drive shaft combination A vacuum pump of the rotary vane type, comprises a casing (50) having a cylindrical inner wall surface (52), a first (54; 54′) and a second (56; 56′) end wall at opposite sides of said casing defining a fluid cavity therein, fluid inl... | 12/28/2004 |
| 6835056 | Roller vane pump incorporating a bearing bush Roller vane pump, in particular suited for pumping fluid in a continuously variable automatic transmission of a motor vehicle, provided with a pump housing accommodating a substantially cylindrical carrier, which is rotatable about a central axis, and a cam ring enc... | 12/28/2004 |
| 6827563 | Scroll compressor for carbon dioxide supplied with a lubricant According to a scroll compressor of the present invention, lubricant is supplied to a compression chamber in the proportions of 2% by weight or more and less than 20% by weight of the lubricant to the sucked refrigerant amount. With this, it is possible to provide a... | 12/07/2004 |
| 6827565 | Rotating piston pump A pump (1) with one or more pistons (3; 103; 203; 303; 403), which can be rotated, especially for conveying essentially liquid media, the piston (3; 103; 203; 303; 403), having at least regionally a surface layer (17; 117; 217; 317; 417) ... | 12/07/2004 |
| 6824368 | Pump for conveying molten masses of polymers and elastomers A pump for conveying molten masses of polymers and/or elastomers comprising a pump body in which are formed an inlet duct for entry of the material, an outlet duct for discharge of the material and a central body communicating with the inlet and outlet ducts and des... | 11/30/2004 |
| 6824367 | Multi-stage compression type rotary compressor and a setting method of displacement volume ratio for the same A multi-stage compression type rotary compressor 10 is provided with an electrical-power element 14, the first and second rotary compression elements 32, 34 driven by a rotary shaft 16 of the electrical-power element 14 in a sealed... | 11/30/2004 |
| 6824370 | Rotary vane gas compressor having unequal intervals between vane grooves and/or unequal distances between vane grooves and rotor center Disclosed is a gas compressor capable of preventing generation of noise due to the vibration during the rotation of the rotor. A rotor rotating in a cylinder around a rotation shaft has five radially extending vane grooves, each of which supports a vane. The respect... | 11/30/2004 |
| 6824369 | Rotary variable expansible chamber-kinetic hybrid pump This invention concerns pumping fluids to both high pressures and high flow rates and thus has a very high power density. The technology pertains to both fluid power and to fluid transfer and is adaptable to a wide scope of use. The concept is a very simple rotary v... | 11/30/2004 |
| 6821092 | Capacity modulated scroll compressor A scroll compressor has a biasing chamber which contains a pressurized fluid. The pressurized fluid within the chamber biases the two scroll members together. A valve assembly is in communication with this biasing chamber and releases the pressurized fluid on demand... | 11/23/2004 |
| 6821098 | Screw compressor having compression pockets closed for unequal durations A compressor has male and female rotors with enmeshed screw-type body portions. A housing cooperates with the rotors to define inlet and outlet chambers for pumping of fluid from/to when the male rotor in a first direction and the female rotor rotates in an opposite... | 11/23/2004 |
| 6817847 | Rotary pump having a hydraulic intermediate capacity with first and second connections The invention relates to a pump with a pump chamber with a rotary-driven pump element mounted, at least one suction and at least one pressure connection opening into the pump chamber and with circulating pumping cells whose volume can be changed, which are connected... | 11/16/2004 |
| 6814150 | Dynamic fire-extinguishing system The invention relates to a method and a device for distributing liquid media, in particular extinguishing fluids for fighting fires, in the form of a mist or a stream of large droplets from a supply line which is maintained at a constant low-pressure, in rooms, for ... | 11/09/2004 |
| 6808368 | Airfoil shape for a turbine bucket Second stage turbine buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth Table 1 wherein X and Y values are in inches and the Z values are non-dimensional values from 0.088 to 0.92 convertible to Z dista... | 10/26/2004 |
| 6808373 | Scroll fluid machine having projections on a wrap peripheral surface Inner peripheral projections are provided on the inner peripheral surface of a wrap portion of an orbiting scroll member, and outer peripheral projections are provided on the outer peripheral surface of the wrap portion. The inner and outer peripheral projections ea... | 10/26/2004 |
| 6808126 | Lawn mower fluid dispenser A lawn mower fluid dispenser includes a fluid dispensing device for a riding lawn mower having a front end and a rear end. A blade cover is positioned generally between the front and rear ends. The device includes a container having a bottom wall, a top wall and a p... | 10/26/2004 |
| 6802702 | Feed pump for fluidic media having sleeve bearing lubrication The invention relates to a feed pump for fluidic media, comprising a displacement body that is mounted in a pump housing and equipped with slide bearings and connecting channels that connect the slide bearings to the produce channel on the suction side for recircula... | 10/12/2004 |
| 6799955 | Two-lobe rotary machine A rotary machine including a housing with spaced apart end walls defining a chamber. A two-lobe lenticular rotor assembly is disposed in the chamber for eccentric rotation therein. A hole passes through a central portion of the rotor assembly. Slots are cut in one e... | 10/05/2004 |
| 6796773 | Variable capacity rotary compressor A variable capacity rotary compressor, which precisely controls variation of a compression capability into a desired discharge pressure, and which minimizes a resistance to rotation of a rotating shaft, and thus improves the capacity of the rotary compressor. The ro... | 09/28/2004 |
| 6796779 | Scroll compressor ring having a lubricant gap An improvement of a ring for a scroll compressor by forming a gap at an angle on the top of the ring where is less subject to pressure, and an askew tangent plane descending outwardly from the bottom of the gap to allow the lubricant passing through the gap and flow... | 09/28/2004 |
| 6793472 | Multi-plate hydraulic manifold A hydraulic device for one of a motor and pump, having a manifold assembly positioned between a gerotor set and a housing for the device, the manifold assembly adapted for conducting pressurized fluid to the gerotor set and conducting exhaust fluid from the gerotor ... | 09/21/2004 |
| 6790019 | Rotary vane pump with multiple sound dampened inlet ports A rotary vane pump has an open ended pump cylinder mounting a drive motor at one end and a ported end plate and sound chamber at the other end. The cylinder contains a rotor mounted to an eccentric drive shaft and having vane grooves receiving slidable vanes contact... | 09/14/2004 |
| 6786710 | Discharge porting for screw compressor with tangential flow guide cusp A screw compressor includes a housing having a discharge port; at least two rotors rotatably disposed in the housing for generating opposed discharge flows in radial and axial directions; and a tangential flow guide cusp disposed in the discharge port and at least p... | 09/07/2004 |
| 6783342 | Method and apparatus for timing rotors in a rotary lobe pump A rotary lobe pump includes two geared-together, counter-rotating shafts, to which are affixed rotors with interdigital lobes. Adjustment of the angular relationship of the rotors uses a clamping device within each rotor. The clamping device consists of a tapered, s... | 08/31/2004 |
