Quotables
"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8177529 | Reciprocating compressor In a compressor, a motor includes a stator and a moving member that reciprocates. A frame supports the stator and a conductivity member flows at least a portion of magnetic flux flowing away from the stator back to the stator. Accordingly, the reciprocating compress... | 05/15/2012 |
| 7686597 | Linear drive device provided with an armature body having a magnet carrier A linear drive device comprising at least one excitation winding for producing a variable magnetic field and is provided with an associated yoke body conducting a magnetic flux and an armature body which comprises a magnet carrier provided with at least two permanen... | 03/30/2010 |
| 7419367 | Magnetically actuated pump A pump for pumping one or more media comprises a housing (1) having an actuator chamber (2) and at least one pump chamber (4). The pump chamber (4) is provided with an inlet port and an outlet port. The pump chamber (4) is delimite... | 09/02/2008 |
| 7382067 | Linear actuator An object of the present invention is to provide a linear actuator in which reliability is improved, and performance is also easily improved. The present invention provides a linear actuator including a stator, a movable element having an iron member, and being reci... | 06/03/2008 |
| 7322804 | Metering pump device for a vehicle heater A metering pump device for a vehicle heater includes an inlet chamber, an outlet chamber, a first valve arrangement between the inlet chamber and the outlet chamber, which permits a fluid exchange substantially only from the inlet chamber to the outlet chamber, a di... | 01/29/2008 |
| 7316270 | Oil pumping unit using an electrical submersible pump driven by a circular linear synchronous three-phase motor with rare earth permanent magnet An oil pumping unit is disclosed to include a motor, which has a mover that moves alternately up and down when the motor is electrically connected, and a pump, which has a barrel, an oil suction pipe mounted in the barrel, an inner sleeve, which is connected to the ... | 01/08/2008 |
| 7316547 | Reciprocating compressor driven by a linear motor A reciprocating compressor driven by a linear motor, comprising a shell, within which are mounted: a reference assembly formed by a motor and a cylinder (1); a resonant assembly formed by a piston (2) reciprocating inside the cylinder (1), and b... | 01/08/2008 |
| 7287966 | Fuel injector driver circuit with energy storage apparatus A reciprocating pump includes a drive section and a pump section. The drive section has a reciprocating coil assembly to which alternating polarity control signals are applied by a reciprocating circuit during operation. A permanent magnet structure of the drive sec... | 10/30/2007 |
| 7284474 | Piston-pumping system having o-ring seal properties The present invention relates to a piston pumping system for substantially gas-free measurement and/or pumping of predetermined quantities of liquids, preferably pharmaceutical liquids containing oxidation-prone ingredients. Preferably, the system is used as a micro... | 10/23/2007 |
| 7267533 | Plunger assembly for use in reciprocating fluid pump employing reversing polarity motor A reciprocating pump includes a drive section and a pump section. The drive section has a reciprocating coil assembly to which alternating polarity control signals are applied during operation. A permanent magnet structure of the drive section creates a magnetic flu... | 09/11/2007 |
| 7259533 | Method of controlling motor drive speed Disclosed is a method of controlling drive speed of a motor operating in overload conditions. The method includes the steps of: driving the motor at a predetermined reference speed; detecting phase voltage and phase current applied to the motor; determining whether ... | 08/21/2007 |
| 7244109 | Inside frame of compressor Inside frame of a compressor including a frame body having a pass through hole for a crankshaft, legs formed by bending, and extending from, opposite ends of the frame body, respectively, and component fastening parts formed by extending from the legs in parallel to... | 07/17/2007 |
| 7213683 | Piston lubricating system for a reciprocating compressor with a linear motor The present invention provides a piston lubrication system for a reciprocating compressor with a linear motor. The piston lubrication system includes an oil sump defined within a hermetic shell, and a cylinder affixed within the hermetic shell. A radial gap is defin... | 05/08/2007 |
| 7185431 | Method of manufacturing a linear compressor A method of manufacturing a linear compressor includes measures to account for possible variations in manufacture of the spring connecting between a cylinder part and a piston part. In the method, the piston is located at a predetermined axial position in the bore o... | 03/06/2007 |
| 7184254 | Apparatus and method for controlling the maximum stroke for linear compressors An apparatus and method for controlling the maximum stroke of a linear compressor is provided. The shorting of the normal supply voltage of a compressor to ground is used to detect overstroking. A plurality of transistors are electrically coupled to the control circ... | 02/27/2007 |
| 7163384 | Reciprocating compressor with a linear motor A reciprocating compressor with a linear motor having an actuating means operatively coupling a reciprocating piston to the motor; and a resonant spring means mounted under constant compression to the actuating means by the mutual seating of a pair of supporting sur... | 01/16/2007 |
| 7156626 | Double side action type reciprocating compressor A double side action type reciprocating compressor is provided. The double side action type reciprocating compressor includes suction valve assemblies and discharge valve assemblies loaded in a suction passage and a discharge passage to thus control suction of fluid... | 01/02/2007 |
| 7157814 | Stator for reciprocating motor and manufacturing method thereof Disclosed are a stator for a reciprocating motor and a manufacturing method thereof which are able to simplify assembling processes, to reduce assembling time, and thereby to improve productivity by laminating an inner stator to be a straight line shape and bending ... | 01/02/2007 |
| 7150606 | Electromagnetic fuel pump An electromagnetic fuel pump, including a pump, an electronic control circuit board assembly (PCB) and electromagnetic coil operatively arranged to operate the pump, and, a housing arranged to house the pump and the PCB/coil assembly, the housing including an integr... | 12/19/2006 |
| 7108490 | Reciprocating compressor having anti-collision means A reciprocating compressor includes a frame unit disposed in a container; a reciprocating motor disposed in the frame unit; a cylinder disposed in the frame unit; a piston performing a linear reciprocating motion; a valve unit installed at the front of the frame uni... | 09/19/2006 |
| 7094041 | Electromagnetic drive type plunger pump With structure comprising a cylinder, a magnetic circuit to exert a mountain-shaped thrust, and a feeding spring to exert an urging force to a plunger during a feeding process, fuel is sucked by movement of the plunger and energy is accumulated in the feeding spring... | 08/22/2006 |
| 7042124 | Electric motors for washdown, food processing, and chemical applications An electric motor includes a motor casing, a stator assembly, a rotor shaft assembly, first and second end bells, respectively, attached to each end of the motor casing, and an electrical inlet in the motor casing for supplying power to the motor. The motor further ... | 05/09/2006 |
| 7032400 | Refrigeration unit having a linear compressor A refrigeration merchandiser including at least one surface at least partially defining an environmental space adapted to accommodate a commodity. The merchandiser includes a linear compressor, a condenser, an expansion device, and an evaporator. The linear compress... | 04/25/2006 |
| 7028659 | Method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine The invention relates to a method for adjusting a volumetric flow-variable positive displacement pump in an internal combustion engine involving the following method steps: operating the positive displacement pump; delivering the fluid to the consumption points in t... | 04/18/2006 |
| 7009516 | Electronic sensor system for monitoring activity of objects An electronic sensor system for monitoring activity of objects according to the invention is of the type includes a central electronic unit exchanging encoded information through radio frequencies with at least one transponder, associated with an object to be monito... | 03/07/2006 |
| 7001157 | Well pumping unit driven by linear motor The present invention relates to a well pumping unit driven by a linear motor. The well pumping unit includes a slideway support, a linear motor having a motor complex primary and a motor complex secondary, a polished rod chain, a polished rod chain wheel assembly, ... | 02/21/2006 |
| 7001158 | Digital fluid pump Digital fluid pumps having first and second electromagnetic actuators formed in part by a piston to alternately drive the piston in opposite directions for pumping purposes. The piston motion is intentionally limited so that the electromagnetic actuators may operate... | 02/21/2006 |
| 6966760 | Reciprocating fluid pump employing reversing polarity motor A reciprocating pump includes a drive section and a pump section. The drive section has a reciprocating coil assembly to which alternating polarity control signals are applied during operation. A permanent magnet structure of the drive section creates a magnetic flu... | 11/22/2005 |
| 6960068 | Center valve sleeve retention system for an oscillating pump A pump (10) includes an impeller (12) positioned in a housing (11). A valve assembly (13) is positioned within a valve sleeve (25) which is carried by the impeller (12). The impeller (12) is carried by an armature ( | 11/01/2005 |
| 6960067 | Reciprocating compressor having an inner core with a scratch resistant intermediate member A reciprocating compressor comprises an inside stator formed by piling a plurality of stator cores to have an actinomorphic cylinder shape, which is press-fitted to a frame, and a streak protection member and a burr shielding ring installed between the inner aspect ... | 11/01/2005 |
| 6957631 | Rapid response power conversion device An apparatus and method for extracting energy from an internal combustion engine includes a chamber having a primary piston and a secondary piston with a combustion portion of the chamber situated adjacently between the primary piston and secondary piston. The secon... | 10/25/2005 |
| 6956306 | Linear actuator, and pump device and compressor device using the same A linear actuator includes an inner yoke, an outer yoke and a coil for generating a magnetic field between the outer yoke and the inner yoke. The outer yoke includes a first facing portion facing the inner yoke and a second facing portion which faces the inner yoke.... | 10/18/2005 |
| 6954040 | Method of controlling a reciprocating linear motor A free piston gas compressor comprising a cylinder, a piston reciprocable within the cylinder and a reciprocating linear electric motor derivably coupled to the piston having at least one excitation winding. A measure of the reciprocation time of the piston is obtai... | 10/11/2005 |
| 6942470 | Motor pump system with axial through flow utilizing an incorporated flowmeter and pressure controller Motor pump system includes an electromagnetic motor comprising a main body, a coil, and a movable hollow free piston. A flow meter is coupled to one end of the electromagnetic motor. A cylinder block is coupled to another end of the electromagnetic motor. At least t... | 09/13/2005 |
| 6932584 | Infusion device and driving mechanism and process for same with actuator for multiple infusion uses A drive mechanism for delivery of infusion medium a coil capable of being electrically activated to provide an electromagnetic field. The coil surrounds a piston channel extending in an axial direction. An armature is located adjacent the coil, on one side of the ax... | 08/23/2005 |
| 6916159 | Device and method employing shape memory alloy A system for the metering and delivery of small discrete volumes of liquid is comprised of a small or minimal number of inexpensive components. One such component is a movable member, such as a miniature precision reciprocating displacement pump head, which is drive... | 07/12/2005 |
| 6913450 | Suction valve coupling structure for reciprocating compressor A suction valve coupling structure for a reciprocating compressor is disclosed in which a piston being linearly moved in a cylinder upon receipt of driving force from an electric mechanism unit, according to which gas flows through a gas flow passage formed therein,... | 07/05/2005 |
| 6904879 | Lubrication system for two-cycle engine An engine has a lubrication system configured to lubricate at least a portion of the engine with lubricant. The lubrication system has a lubrication pump that periodically pressurizes the lubricant toward the portion of the engine. A first sensor senses an engine sp... | 06/14/2005 |
| 6889596 | Compressor cooler and its assembly procedure A cryogenic refrigerator and more particularly, the cryogenic refrigerator compressor assembly procedure and to a mechanism for supporting piston for use in such a cryogenic refrigerator is described. Embodiments of the present invention solve the above-mentioned dr... | 05/10/2005 |
| 6881042 | Reciprocating compressor having reduced vibration A reciprocating compressor includes: a reciprocating motor, an outer stator and an inner stator provided with at least one step portion at both sides thereof, and an armature linearly moving therebetween; a compression unit having a cylinder and a piston inserted in... | 04/19/2005 |
