Matches 1 - 46 out of 46


Match Document Document Title
US20120107161 Pumping Device that is Operated Easily and Safely  
A pumping device includes a barrel, a top cover mounted on the top of the barrel, a first switching valve mounted on the top cover, a base mounted on the bottom of the barrel, a second switching...
US20090175747 Manual evacuation system  
A gastight interface for an evacuation device comprises a flexible suction cup adapted to form a gastight seal with a surface surrounding a valve disposed on a container and extending from an...
US20080019854 Pumping apparatus having a piston with a diamond-like carbon coating  
A pumping apparatus is provided, which comprises a piston (1) for reciprocation in a pump working chamber (3), a valve, coupled to said pump working chamber (3) in order to permit liquid flow only...
US20140099224 VARIABLE VOLUME BORE PISTON PUMP  
A piston pump which permits advantageous operation over both short stroke piston movement and long stroke piston movement.
US20080044303 Lubricant Dosing Pump and Dosing Method with Two Pistons Movable with Respect to One Another  
The invention relates to a method for dosing a lubricant as well as a lubricant dosing pump. To be able to accurately dose the small lubricant quantities necessary in minimal quantity lubrication,...
US20130101442 AIR SUCTION PUMP AND METHOD FOR VACUUM SEALING VINYL BAG USING SAME  
Provided are an air suction pump and a method of vacuum sealing vinyl bag using same. The air suction pump includes a base member, a housing mounted on a top of the base member to be movable in a...
US20100183464 WATER PUMP  
A water pump for delivering water from a well to the surface has a housing with a reciprocable plunger disposed therein. The housing is preferably comprised of PVC and tubulars which are connected...
US20090311117 PUMP DEVICE, FOR INSTANCE FOR FRONT AND REAR WHEEL DRIVEN MOTORCYCLE  
A pump arrangement is arranged to be driven by a rotating shaft and comprises a piston arrangement that generates a flow pulse. The piston arrangement has pistons that move axially forward and...
US20080145251 High pressure pumping apparatus with coupled volumes in a pump working chamber  
A pumping apparatus (10), for delivering liquid at a high pressure at which compressibility of the liquid becomes noticeable, comprises a piston (20) adapted for reciprocation in a pump working...
US20050031476 Single-step or muti-step piston compressor  
The invention relates to a novel piston compressor whose return valves have a very good closure force and are extremely tight. The inlet return valve (15) is provided with a first sealing membrane...
US20070264141 Air compressor having improved valve device  
An air compressor includes a cylinder housing, a piston moved to slide in the cylinder housing in a reciprocating action to generate pressurized air, and a sealing ring engaged into the piston and...
US20060024185 Nasal sprays  
A nasal spray includes an open mouthed bottle containing a preparation containing sesame oil and a spray pump dispenser mounted to close the open top of the bottle. A dip tube extends down into...
US20120107146 Pumping Device Having A Pressure Adjustable Function  
A pumping device includes a barrel, a top cover mounted on an open top of the barrel, a cylinder mounted in the barrel and connected to the top cover, a piston movably mounted in the cylinder, a...
US20090060766 ADJUSTABLE LENGTH BICYCLE MOUNTABLE HAND PUMP  
An adjustable length bicycle mountable hand pump. The pump includes a barrel having an internal cylinder within which a piston is reciprocatingly moveable. A piston rod connects to a piston at a...
US20070292289 Piston Compressor Producing an Internal Cooling Air Flow in the Crankcase  
A compressor piston including a piston in a cylinder; a connecting rod connecting the piston to a crankshaft in a crankcase by a roller bearing; and an air inlet line and an air outlet line in a...
US20060045781 Method and pump apparatus for removing liquids from wells  
A method and pump apparatus for removing formation fluids from a “liquid loaded” gas well is provided. The pump apparatus is adapted to be positioned downhole a well and is hydraulically operated...
US20070237661 Hand-operated reciprocating pump  
A reciprocating pump includes a cylinder; a piston including apertures and an annular bottom flange; a first check valve secured to a piston rod and including an annular groove; a coupling at...
US20080219869 COAXIAL PUMPING APPARATUS WITH INTERNAL POWER FLUID COLUMN  
A pump having an increased energy efficiency is provided. The pump has an internal power fluid column and a transfer piston which is reciprocatingly mounted about the power fluid column. The...
US20050163635 Resonant arrangement for a linear compressor  
A resonant arrangement for a linear compressor, comprising a non-resonant assembly formed by a motor and a cylinder (1); a resonant assembly formed by a piston (2) reciprocating inside the...
US20080310979 Piston Pump With Improved Efficiency  
The present invention relates to a piston pump for delivering hydraulic fluid, including a reciprocating piston for building up pressure in a pressure chamber; a sealing element is situated on the...
US20050175482 Linear compressor with external vibration-absorbing structure  
Disclosed herein is a linear compressor with an external vibration-absorbing structure. The linear compressor comprises a base plate and a hermetically sealed container disposed at the upper...
US20100098557 Hand Operated Pump  
A hand operated pump for generating negative and positive air pressure. The pump includes a pump body having a pump cylinder and a piston mounted for reciprocation in the cylinder. A selector...
US20080226479 Piston Pump With Improved Piston  
The invention relates to a piston pump for conveying a fluid, in particular in a vehicle brake system. The piston pump has a cylinder and a piston movably disposed in the cylinder. A restoring...
US20080257648 Device and Method for Supplying Lubricating Oil  
The invention relates to a device for feeding lubricating oil to an internal combustion engine. This device comprises a lubricating oil pump and an oil pressure regulating apparatus. The...
US20100119394 CYLINDER PISTON ARRANGEMENT FOR A FLUID PUMP OR A FLUID MOTOR  
The invention relates to a cylinder piston arrangement for an especially volumetric fluid pump or a fluid motor, preferably comprising at least one axial expansion tubular membrane piston defining...
US20060222540 ROBUST MANUAL PUMP  
A pump includes a cylinder, a head, a piston, a rod, a ring and a handle. The cylinder includes a first section and a second section. The head is connected to the first section of the cylinder....
US20130287597 COAXIAL PUMPING APPARATUS WITH INTERNAL POWER FLUID COLUMN  
The present application relates generally to pumps, and more particularly to piston type pumps having increased energy efficiency, systems incorporating such piston type pumps, and methods of...
US20130156622 PNEUMATIC TOOL HAVING CLOCKWISE AND COUNTERCLOCKWISE ROTATION FUNCTION  
A pneumatic tool includes a housing, an air cylinder disposed in the housing, a valve unit, and a controlling unit. The air cylinder has an outer surface formed with a valve seat. A rotary valve...
US20100310394 COMPRESSOR UNIT  
A compressor unit having a cylinder and a piston, wherein the cylinder and the piston delimit a compressor chamber. The compressor unit also includes a capsule that surrounds at least the cylinder...
US20100209275 HYDRAULIC CYLINDER HAVING PISTON-MOUNTED BYPASS VALVE  
A hydraulic cylinder is disclosed. The hydraulic cylinder may have a tube, and a piston disposed within the tube and having a bore passing through the piston. The hydraulic cylinder may also have...
US20130302195 LOW RESIDUAL INVERTED PUMPS, DISPENSERS AND REFILL UNITS  
A foam pump including a housing and a piston that reciprocates within the housing is disclosed herein. The piston has a hollow portion and an orifice through the wall of the piston. A first seal...
US20130195685 SELF-CLEANING DISC VALVE FOR PISTON PUMP  
Embodiments of the present disclosure generally provide a disc-valve design with a self-cleaning feature. The self-cleaning feature may be integrated into the valve, for example, by removing a...
US20130146500 VACUUM GENERATING APPARATUS AND VACUUM CONTAINER PROVIDED WITH THE SAME  
The present invention relates to a vacuum container. The vacuum container includes a piston member linearly movably disposed in a receiving portion which is formed at the vacuum container and has...
US20110115283 SEALING STRUCTURE FOR PISTON AND PISTON PUMP AND BRAKE HYDRAULIC PRESSURE CONTROL DEVICE INCORPORATING THE STRUCTURE  
A sealing structure is provided wherein an annular groove formed in a pump cylinder of a piston pump receives therein a seal ring made of a synthetic resin material and having an inner...
US20100290939 REFRIGERANT COMPRESSOR  
Refrigerant compressor for a hermetically encapsulated small refrigerator, which has a piston (20) guided in a piston bore (3) of a cylinder housing (1), the cylinder housing being frontally...
US20090185923 FUEL SUPPLY PUMP  
The invention provides fuel supply pump that can improve the durability of a fuel inlet valve and stably pressure-feed high pressure fuel of a large flow rate. In the fuel inlet valve according to...
US20100111735 Foam Pump  
A foam pump, comprising a pump body (1), a big cover (2), a big piston (3), a small piston (4), a piston rod (5), a head cap (6) and a foam screen (7), featured by that: said pump body (1) is at...
US20100183463 PISTON FOR A REFRIGERATION COMPRESSOR  
A piston of the type comprising a tubular skirt portion which is closed, next to an end edge, by a head portion, the skirt portion being defined by a respective tube extension and presenting an...
US20100196178 METERING PUMP  
The invention relates to a metering pump for feeding out viscous materials, which pump comprises a housing having an inlet, connectable to a viscous material source, and an outlet; a valve body of...
US20100154409 Fluid pump device for vehicle braking systems  
A pump device and method minimizes the quantity of air in a vehicle brake system by reducing the volume of detrimental space. The device includes a piston movable between first and second end...
US20160097387 SUPPORT STRUCTURE FOR LINEAR-COMPRESSOR MOVING COMPONENT, LINEAR COMPRESSOR, AND CRYOGENIC REFRIGERATOR  
A linear-compressor moving component support structure includes: a plurality of leaf spring parts each elastically supporting the moving component in the compressor container such as to allow its...
US20150377228 LINEAR COMPRESSOR, SHELL FOR LINEAR COMPRESSOR, AND METHOD FOR MANUFACTURING SHELL OF LINEAR COMPRESSOR  
A linear compressor, a shell for a linear compressor, and a method for manufacturing a shell of a linear compressor are provided. The shell may have at least one portion having a multilayer plate,...
US20150377227 IMPROVEMENT IN A PISTON FOR A REFRIGERATION COMPRESSOR  
The piston (P) comprises a tubular skirt (10), and a head (H) affixed in the interior of the skirt (10), close to an end edge (11) of the latter and carrying a suction valve (20). The head (H)...
US20150337823 Lubricant-Free Compressor Having a Graphite Piston in a Glass Cylinder  
A substantially lubricant-free compressor comprising a glass cylinder having a hollow interior, a graphite piston within the glass cylinder, a connecting rod operably attached to the graphite...
US20150272398 FOAM DISPENSER WITH AN INTEGRAL PISTON VALVE  
A foam-dispensing pump includes an actuator, a collar, a housing, an air piston, a liquid piston, a mesh element and an air valve structure. The collar is constructed and arranged for attachment...
US20150110657 Adjusting Device for an Adjusting Piston of a Variable Clearance Space of a Reciprocating Compressor  
In order to enable a continuous adjustment of the variable clearance space (1) of a reciprocating compressor (15), a threaded spindle drive with a threaded spindle nut (10) and a threaded spindle...

Matches 1 - 46 out of 46