子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Micromotor and micropump | US09727210 | 2000-11-30 | US06551083B2 | 2003-04-22 | Thomas Weisener; Gerald Voegele; Mark Widmann; Carlo Bark; Andreas Hoch |
| The invention concerns a micropump for the substantially continuous delivery of a mass flow, the micropump having a sleeve axis and an offset axis of rotation. An internal rotor meshes with an external rotor in a sleeve and at least one outlet-side pressure opening in a first end-face termination part. Both rotors have a dimension smaller than 10 mm. The invention further concerns a micromotor of similar construction in which the diameter of the rotors and the casing are below 10 mm. The pump and motor are extremely miniaturized yet still permit a continuous flow with high feed pressure and high output. | ||||||
| 222 | Devices employing colloidal-sized particles | US10138799 | 2002-05-03 | US20030012657A1 | 2003-01-16 | David W.M. Marr; Tieying Gong; John Oakey; Alexander V. Terray |
| The present invention relates to the use colloidal particles to realize photonic and microfluidic devices. In particular embodiments, colloidal particles are used to realize microfluidic a two-way valve, three-way valve, check valve, three-dimensional valve, peristalsis pump, rotary pump, vane pump, and two-lobe gear pump. In certain embodiments, actuation of an active element in the microfluidic structure is accomplished by electrophoresis, the use of an optical trap or nulltweezernull, or the application of an electric field or magnetic field. In other embodiments, the application of an electrical field to colloidal particles that are substantially constrained to two dimensional movement is used to realize wave guides, filters and switches for optical signals. | ||||||
| 223 | Rotary piston engine having a cogwheel pump and an oil metering pump | US09866467 | 2001-05-29 | US06474965B2 | 2002-11-05 | Dankwart Eiermann |
| A trochoidal design rotary piston engine design has an external axis cogwheel oil pump which has a smaller diameter drive cogwheel which drives a larger diameter size cogwheel where the larger diameter size cogwheel is coupled to an oil-metering pump. The larger cogwheel is supported in a side disk disposed at one side of an engine housing forming a combustion engine. | ||||||
| 224 | Micromotor and micropump | US09727210 | 2000-11-30 | US20020015653A1 | 2002-02-07 | Thomas Weisener; Gerald Voegele; Mark Widmann; Carlo Bark; Andreas Hoch |
| The invention concerns a micropump for the substantially continuous delivery of a mass flow, the micropump having a sleeve axis and an offset axis of rotation. An internal rotor meshes with an external rotor in a sleeve and at least one outlet-side pressure opening in a first end-face termination part. Both rotors have a dimension smaller than 10 mm. The invention further concerns a micromotor of similar construction in which the diameter of rotors and the casing are below 10 mm. The pump and motor are extremely miniaturized yet still permit a continuous flow with high feed pressure and high output. | ||||||
| 225 | Compact sealless screw pump | US09044055 | 1998-03-18 | US06241486B1 | 2001-06-05 | Donald P. Sloteman |
| A screw pump, includes a pump case having a fluid inlet, a pumping chamber, and a fluid discharge with at least two intermeshed parallel screw members rotatably mounted therein and in fluid communication with the fluid inlet and the fluid discharge. One synchronous electric drive motor mounted to each screw member provides the driving power to the screws. Electronic controls are provided for sensing the rotary positions of the motors for synchronizing rotation of the screw members. The pump is also capable of pumping multi-phase fluids. | ||||||
| 226 | Micromotor and micropump | US09043790 | 1998-09-02 | US06179596B2 | 2001-01-30 | Thomas Weisener; Gerald Voegele; Mark Widmann; Carlo Bark; Andreas Hoch |
| The invention concerns a micropump for the substantially continuous delivery of a mass flow, the micropump having a sleeve axis and an offset axis of rotation. An internal rotor meshes with an external rotor in a sleeve and at least one outlet-side pressure opening in a first end-face insert part which is inserted into the sleeve of slightly largely diameter, is aligned in the axial direction. The invention further concerns a micromotor of similar construction in which the diameter of the delivery hose corresponds approximately to that of the sleeve casing. The pump and motor are extremely miniaturized yet still permit a continuous flow with high feed pressure and high output. | ||||||
| 227 | Knockdown portable liquid drywall material spray system apparatus and method | US32255 | 1998-02-27 | US5967426A | 1999-10-19 | David J. McLeod |
| The invention is a compact, self-contained, portable, electrically powered, knockdown spray application machine/system for spraying liquid material on to surfaces. The spray system comprises a frame with wheels for supporting and transporting the components thereof. The spray system is powered by an electrically activated motor which includes a motor drive shaft disposed about a motor drive shaft axis. Attached to the motor is a gear reducer having a driven end and a drive end wherein the driven end is configured to receive and engage the motor drive shaft. The drive end includes a gear reducer drive shaft that rotates responsive to electrical activation of the motor. Coupled directly to the drive end of the gear reducer is a pump comprising a pump housing. The pump housing is shaped to define a containment chamber for receiving and containing liquid material therein. The pump housing also defines an inlet port for receiving and directing liquid material into the containment chamber. Mounted to the pump housing is a stator, the stator being mounted to the pump housing such that it is in communication with the containment chamber. Within the stator is a rotor disposed for rotation about a pump rotation axis responsive to rotation of the gear reducer drive shaft. | ||||||
| 228 | Zirconia and zirconia composite ceramic shafts for gear micropumps and method of making same | US709426 | 1996-09-06 | US5762485A | 1998-06-09 | Syamal K. Ghosh; Dilip K. Chatterjee; David Alan Ash |
| An improved gear micropump (10) for delivering corrosive materials, particularly photographic materials, such as dyes and emulsions, has a pair of intermeshing gears (16,18) rotatably mounted on zirconia ceramic shafts (24,26). The ceramic shafts of the invention may be formed from zirconia and zirconia composite materials. The gear micropump (10) having the zirconia ceramic shafts (24,26) eliminates pulsation during fluid delivery and is resistant to wear and abrasion. Moreover the zirconia ceramic shafts (24,26) are strongly resistant to chemicals like photographic emulsions and dyes and, therefore, do not contaminate product with corrosive materials. | ||||||
| 229 | Integral pump and flow meter device | US808479 | 1997-03-03 | US5704767A | 1998-01-06 | Paul A. Johnson |
| A pump housing is provided with a conduit extending through the housing between a pump inlet and pump outlet. A pump device is disposed within the housing and in communication with the conduit to pump fluid therethrough. A fluid flow meter also is disposed within the housing and in communication with the conduit to monitor fluid flow rate through the conduit. The fluid flow meter generates signals related to the fluid flow rate which are fed back to a control device operable to control the flow rate through the pump device. The flow meter may include a pair of meshed modified elliptical gears. The modified elliptical gears are based on a true elliptical shape, with bulged portions added between the major and minor axes of the elliptical shape. The modified elliptical gears have involute teeth that are relatively thick adjacent the minor axis and relatively thin adjacent the major axis. | ||||||
| 230 | Pumping process for operating a multi-phase screw pump and pump | US530345 | 1995-10-06 | US5624249A | 1997-04-29 | Gerhard Rohlfing |
| The invention relates to a pumping process for operating a multi-phase screw pump with at least one feed screw surrounded by a housing having at least one inlet on one side and at least one outlet at its top, in which the intake medium is conveyed parallel to the screw shaft in a continuous low-pulsed stream and continuously discharged at the outlet. This invention also relates to a multi-phase screw pump. In order to prevent the drawbacks usually occurring in dry running phases, the invention proposes that a partial liquid volume flow (liquid circulation) be separated on the pressure side and returned in metered quantities into the intake regions and thus kept in circulation. | ||||||
| 231 | Portable medical suction device | US87153 | 1987-08-19 | US4930997A | 1990-06-05 | Alan N. Bennett |
| The portable medical suction device of the preferred embodiment of the present invention comprises a disposable suction component including a suction tube bonded to the inlet of a plastic flow-through rotary vane pump, a collection tube bonded to the pump outlet and a flexible reservoir bag bonded to the collection tube and having a hydrophobic vent, adapted to be economically disposed of after a single use without the necessity of cleaning the components of the device that contact the aspirate. The rotary vane pump of the disposable component is designed for ready operable coupling and decoupling to the output of an electric motor. The motor is removably mounted in a support frame. The reservoir bag is also gathered within the support frame, having a first volume capacity when so gathered and a second larger volume capacity when unfolded through an opening at one end of the support frame. The motor is energized by a rechargeable battery through an electronic control assembly, each of which is removably mounted in the support frame. The electronic control assembly includes circuitry capable of generating three discrete suction levels for various types of suctioning environments. An AC/DC converter and an external DC power cable are removably housed within the support frame, usable to recharge the battery or drive the motor. The entire suction device is small, lightweight and encased in a padded carrying case having a plurality of readily openable and closeable openings for access to the various components of the suction devce. | ||||||
| 232 | Mixing apparatus | US592052 | 1975-06-30 | US4025056A | 1977-05-24 | David Roy Miles; Alun Woolcock |
| A gear pump comprising a driving and a driven gear, pairs of successive teeth of at least one gear each having a cut-out allowing a proportion of slip, the cut-outs each extending to the root of the tooth and the cut-outs in successive teeth being in axially differently located positions. | ||||||
| 233 | Injection of additives into liquid streams | US411167 | 1973-10-30 | US4015828A | 1977-04-05 | David Roy Miles |
| A conventional gear pump is modified by the incorporation of means to permit a liquid additive to be injected into the gear pump at the point at which the gear wheels separate. At this point the pressure is at or below atmospheric pressure and, as a result, the additive can be added uniformly and independently of the polymer flow and pressure. | ||||||
| 234 | Mixing pump and method of mixing using same | US483917 | 1974-06-28 | US3936246A | 1976-02-03 | Stuart W. Beitzel |
| A rotary vane pump can be constructed so as to utilize an auxiliary inlet port which is used to convey one fluid under pressure to the interior of the pump where such fluid is mixed with fluid drawn into the pump in a normal manner. In the disclosed structure the fluid conveyed to the pump through the auxiliary inlet port is used to force vanes carried by the pump rotor outwardly into contact with an eccentric wall in the pump stator. The vanes are preferably formed and mounted on the rotor so that the fluid conveyed through the auxiliary inlet port passes into the space between the rotor and the stator by flowing alongside the vanes. A structure of this type is preferably utilized with one of the inlet fluids being water and the other of the inlet fluids being a gaseous mixture containing a high proportion of ozone. | ||||||
| 235 | Liquid and air mixing gear pump | US3764238D | 1972-01-24 | US3764238A | 1973-10-09 | CARPIGIANI P |
| The air intake ports of a liquid and air sucking and mixing gear pump are put into communication with the atmosphere through a collecting tank or chamber, in which the small amounts of foamy liquid-and-air emulsion flowing out from said ports during the stopping time of the pump are collected, and from which the amounts of emulsion are again sucked back into the pump as soon as the pump operation is again started.
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| 236 | Venturi pump for mixing two fluid streams within a large range of flow rates | US3511259D | 1967-04-03 | US3511259A | 1970-05-12 | TOURE KLEBER |
| 237 | Gear pump | US3420180D | 1967-07-21 | US3420180A | 1969-01-07 | BEHRENDS BERTWIN E; SCHMITT JAMES L |
| 238 | Liquid-gas system | US45097865 | 1965-04-26 | US3321909A | 1967-05-30 | GORDON RICHARD O |
| 239 | Rotary hand pump | US71692546 | 1946-12-18 | US2541405A | 1951-02-13 | CHAPMAN EDWARD W |
| 240 | Pumping system | US65040033 | 1933-01-06 | US2021613A | 1935-11-19 | GORDON SHEPPARD ALLEN |
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