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8162631 |
Floating pinion bearing for a reciprocating pump
A reciprocating pump assembly includes a power frame that houses a crankshaft. The crankshaft is mechanically connected to a large gear or bull gear on each end that is in mechanical engagement...
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8133042 |
Chemical liquid supplying apparatus and pump assembly
A chemical liquid supplying apparatus, which can discharge chemical liquid with high precision, is provided. A pump assembly is detachably mounted in a pump case in which liquid inflow and...
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8129176 |
Integrated active flux microfluidic devices and methods
The invention relates to a microfabricated device for the rapid detection of DNA, proteins or other molecules associated with a particular disease. The devices and methods of the invention can be...
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8075286 |
Compressor for liquid or gaseous fluids
A double-acting compressor to compress liquid or gaseous fluids includes a cylinder having a piston head that reciprocates between opposite ends of the cylinder; a fluid discharge and suction...
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8070855 |
Methods and apparatuses for reducing emissions of volatile organic compounds from pumps and storage tanks for VOC-containing fluids
A method is provided for reducing emissions of a volatile organic compound (“VOC”) from a source of the VOC. The method includes the steps of: (A) operatively positioning a VOC-absorbing mat...
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7990705 |
Systems and methods for synthetic jet enhanced natural cooling
A method and system for increasing cooling of an enclosure is provided. The component enclosure includes one or more sidewalls defining a volume, the sidewalls are configured to substantially...
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7918317 |
Lubricating oil dosing arrangement
In a lubricant dosing arrangement for the lubrication of valve shafts on the cylinder heads of piston engine wherein the valve shafts are axially movably supported in housing bores formed in the...
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7870964 |
Implementation of microfluidic components in a microfluidic system
A system and method for integrating microfluidic components in a microfluidic system enables the microfluidic system to perform a selected microfluidic function. A capping module includes a...
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7607898 |
Method and apparatus for delivering pressurized gas
This invention relates to an apparatus for pressurizing a fluid and delivering a gas comprising a pump, an accumulator and a heater such that the pump pressurizes a quantity fluid received from a...
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7527483 |
Expansible chamber pneumatic system
An expansible chamber pneumatic system, for example a fluid pump system, includes two or more double-acting diaphragm pumps, each with symmetrical left and right pump housings, each housing...
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7445926 |
Fluid control structures in microfluidic devices
Methods and apparatus for implementing microfluidic analysis devices are provided. A monolithic elastomer membrane associated with an integrated pneumatic manifold allows the placement and...
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7404703 |
Air pump with apparatus to hold nozzle
An air pump has a cylinder, a shaft to be manipulative for inflation, a hose connected to the cylinder, a nozzle connected to an end of the hose and a handle pivoted on an end of the shaft. The...
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7354255 |
Piston vibratory pump
The present invention is an improved vibratory pumping mechanism that increases the efficiency of utilization of the vibratory motion within a mechanism. More specifically, the mechanism includes a...
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7322800 |
System and method of providing hydraulic pressure for mechanical work from an engine lubricating system
The method provides hydraulic pressure for mechanical work from an engine lubricating system in an internal combustion engine by supplying oil to an engine lubrication gallery for lubricating the...
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7261525 |
Outlet check valve for fluid bladders
A manually operated pump having a pump assembly and a check valve. The pump assembly includes a dome with a fluid inlet. A support plate is sealed to the dome to define a fluid chamber. The support...
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7238165 |
Fluid pump
A pumping system 10 provides a physiological pulsatile flow and includes controller 121, a pump drive head 50 coupled to a motor 12 and a fluid housing 52 having at least one port 60. The port 60...
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7188377 |
Hand-operable pump
A pump having a vessel with a hollow interior. An adaptor may be associated with the vessel and include an opening that facilitates selective flow of fluid relative to the interior. A piston may be...
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7059841 |
Structure of an oil-free compressor on a vehicle
An arrangement of an oil-free compressor apparatus on a rail vehicle for supplying compressed air to pneumatic units assigned to the rail vehicle. The arrangement includes an oil-free compressor...
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7040875 |
Refrigerant pump with rotors in bearing
A refrigerant pump includes a thin-walled hermetic vessel and a thick-walled hermetic vessel having an end inserted into and secured to an end of the thin-walled hermetic vessel. A stator of an...
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7013793 |
Diaphragm mounting method for a diaphragm pump
A diaphragm pump and method for making same, the pump having a diaphragm coupled to a wobble plate achieved using: a post (11) protruding from the wobble plate toward the diaphragm and at least...
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6948920 |
Toilet bowl and tank drainage device
A hand held an portable pump has a housing with an inlet on the bottom and an outlet on its side. A central tube extends up from the housing and has a bulb attached at its end. An inlet gate is...
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6776591 |
Membrane pump comprising an inlet opening that is controlled by the membrane
A membrane pump (1) having a membrane (24) which can be actuated by a crank drive (32), which membrane bounds, together with a concave pump body surface (8), a pump chamber (38), an inlet channel...
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6651742 |
Method and apparatus for enhancing oil recovery
An apparatus and method for enhancing oil recovery through improved injection well performance is provided, wherein a fluid is injected into the well bore at a pressure Pi, and a downhole...
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6611425 |
Electronic apparatus
An electronic apparatus has a water-cooling system suited for a construction having compact, thin design. In the electronic apparatus, a water-cooling jacket is thermally connected to a...
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6592343 |
Air compression device
A compact manually operated air compression device for precompressed air guns has been disclosed, wherein two operating levers, positioned on opposite sides of a cylinder, are connected to a piston...
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6497560 |
High volume low pressure air pump
A high-volume low pressure hand operated air pump comprised of a tube body with a plunger shaft inserted into one end thereof and a check valve at the other end thereof with a floating seal secured...
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6464475 |
Head for pumps in particular of the membrane or piston type and method for its manufacture
A head for pumps in particular of the membrane or piston type used for watering and weeding, and to the method for its manufacture. The head has an internal metal frame able to provide it with...
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6257848 |
Compressor having a control valve in a suction passage thereof
In a compressor for compressing a gaseous fluid, a control valve (22) is arranged for controlling an open area of a suction passage (17,18) which is for introducing the gaseous fluid. In a first...
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6231319 |
Hermetic compressor
A hermetic compressor includes a plurality of compressing mechanisms. Each of the compressing mechanism includes a rotary cylinder having a groove, and a piston slidable in the groove, so that a...
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6171081 |
Fuel pump assembly
A fuel pump assembly is capable of improving follow-up ability of a push rod relative to an eccentric cam by increasing a spring force of a push rod spring, without increasing a size of the fuel...
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6146114 |
Fluid pump and expandable energy storage device
A fluid pump and expandable energy storage device includes a substantially igid circular band, a substantially rigid central hub, a membrane fixed to the band and to the hub, the membrane being...
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5957673 |
Injection pump for diesel engines
An injection pump for a diesel engine has a pump cylinder with a pump piston slideably mounted therein. The piston has a broadened foot portion. A cam is mounted on the camshaft and a rocker arm is...
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5947706 |
Hand operated floor pump with retractable stand
A hand operated floor pump has a retractable stand of a tripod type which is movable between a retracted position wherein three support legs are held in closely adjacent relationship with a pump...
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5823754 |
Manual pump
A manual pump includes first and second tubular members. The first tubular member has an upper closed end, a lower open end, and a piston member extending through and mounted movably in the first...
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5806575 |
Vacuum extractor of a vacuum container
A vacuum extractor mounted in an one-way valve in a lid of a container body of a vacuum container and adapted to extract air out of the vacuum container, including an extraction pump mounted in the...
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5787854 |
Device with fuel injection and lubricant delivery means for internal combustion engines
In order to provide a device with fuel injection and lubricant feed means for internal combustion engines, preferably for manual guided equipment, such as chain saws, with a helical gear wheel (12)...
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5681435 |
Fluid dispensing pump
Disclosed is a self-contained device which continuously dispenses a packaged fluid. The device is particularly suited for applications where several months may lapse before performance is manually...
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5662098 |
Injector-type atomizer
An injector-type atomizer with a simple structure which is capable of stepwise spraying a medicament such as vaccine drawn into a cylinder by a regular amount. The atomizer comprises a cylinder...
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5655890 |
Toy pump device
A toy pump device includes a tube in which a piston rod is slidably received, a piston connected to an end of the piston rod, the piston having a tubular portion extending therefrom with a first...
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5645056 |
Variable volumetric inflatable pump
A pump that can be adjusted to vary the volumetric output of the pump. The pump has a flexible housing that defines an inner pump chamber. The flexible housing can be collapsed by the user to...
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5624242 |
Hand air pump for different types of valves
A hand air pump includes a cylinder having a chamber defined therein, a piston slidably received in the chamber and manually operable at a first end of the cylinder, and a spindle projecting...
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5620314 |
Hand-operated liquid pump with removable parts
A hand-operated, portable, easily-manufactured liquid pump offering efficiency through advanced plunger design, ease of repairability, and enhanced versatility through use of a select group of...
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5600856 |
Toilet blockage remover
A toilet blockage remover (17) is provided in three selected versions. The first version (21) includes a toilet bowl cover (19) attached to a soft pad (23). The second version (43) includes a pump...
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5551848 |
Attachment mechanism for portable hand pump
A portable hand pump includes a housing having a hole for rotatably engaging with an extension of a tube. A hose and an attachment member are secured to the tube such that the attachment member may...
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5540557 |
Vacuum pump for containers
A vacuum pump for removing air from containers includes a pump housing in the form of a conduit with an open end and a closed end. A piston in the form of a conduit, open at each end, is slidably...
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5535900 |
Bottle cap with an air removing device
A bottle cap with an air removing device consists of a cap unit and an air stopper combined together. The cap unit includes an upper cap portion, a lower cylindrical portion and a valve formed in...
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5494419 |
Portable and flexible air pump for bicycle
A portable flexible air pump comprises a connection head, a main body and a flexible body located between the connection head and the main body. The connection head is provided therein with an air...
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5494411 |
Portable hand air pump having collapsible handle and footstand
A portable hand air pump includes a pump body having a foot support pivotally coupled to the bottom portion and having a hook secured to the upper portion. A hose has one end coupled to the pump...
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5492535 |
Hand-powered pumping apparatus for perfusion and other fluid catheterization procedures
A manually operated pumping apparatus which is particularly useful in catheterization procedures has two pumps supported in a housing in a parallel arrangement. The pumps are engaged by a rack and...
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5480287 |
Pumping device, particularly for sports shoes, and method for manufacture thereof
Method for manufacturing pumping devices, particularly usable in sports shoes, including the monolithic molding of a body having at least one tubular passage and a first and a second seat for air...
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