Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8109740 | Mounting structure of linear compressor The present invention discloses a mounting structure of a linear compressor, comprising: a shell which is a hermetic space, a connection terminal for supplying power being fixed to one side of the shell; a main body frame installed in the shell, one end of a cylinde... | 02/07/2012 |
| 8025489 | Portable, remote electromagnetic power system A portable electromagnetic power system used as a remote alternate power source includes a water tank having an oil reservoir mounted on top of the tank with four cylinders extending through the tank and the two outer cylinders denoted the pressure cylinders and the... | 09/27/2011 |
| 7988430 | Linear compressor A linear compressor is provided. The linear compressor may include a cylinder in which refrigerant flows in an axial direction, a piston that reciprocates within the cylinder so as to compress the refrigerant, and a linear motor that drives the piston. At least one ... | 08/02/2011 |
| 7934910 | Piston displacement device for reciprocating compressor A piston displacement device for a reciprocating compressor comprises a piston linearly reciprocated in a cylinder and having a stroke length varied by a reciprocating motor, a plurality of resonance springs for guiding a resonant motion of the piston, and a piston ... | 05/03/2011 |
| 7922463 | Linear compressor Disclosed herein is a linear compressor wherein a compression unit, including a cylinder and a linear motor, is supported by a frame mounted in a hermetic container. The frame is die cast using diamagnetic zinc having a high forming accuracy, thereby preventing an e... | 04/12/2011 |
| 7798789 | Reducing cylinder wear in a drug pump The present invention relates to a method and related apparatus for rotating a piston of a drug pump during the pumping stroke to reduce drug pump wear. The actuator may move a piston that pumps fluid through a pumping channel. In the present invention, the armature... | 09/21/2010 |
| 7789637 | Numerically controlled reciprocating submersible pump apparatus A deep well pump, especially a numerically controlled reciprocating submersible pump with freely adjustable parameters, includes a balancing sieve tube, a drive and a pump. The drive includes a stator with airtight cavity and reciprocating head with iron cores insid... | 09/07/2010 |
| 7762793 | 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... | 07/27/2010 |
| 7753660 | Infusion device and actuator for same An apparatus for delivering a fluid includes a housing, an inlet in the housing for receiving the fluid, and an outlet in the housing for discharging the fluid. A piston channel is provided within the housing through which the fluid flows from the inlet to the outle... | 07/13/2010 |
| 7748963 | Linear compressor Disclosed herein is a linear compressor, which is designed in such a fashion that oil is suctioned into a space between a cylinder and a piston by a low pressure produced between the cylinder and the piston when the piston moves backward, and then is discharged to t... | 07/06/2010 |
| 7628591 | Apparatus and method for controlling operation of compressor An apparatus for controlling a compressor includes a stroke calculator for calculating a stroke estimate value of a compressor based on a value of a current applied to a motor of the compressor and a value of a voltage applied to the motor of the compressor; an oper... | 12/08/2009 |
| 7618243 | Linear compressor controller A free-piston linear compressor (1) controlled to achieve high volumetric efficiency by a controller including an algorithm (116) for ramping up input power until piston-cylinder head collisions are detected using a detection algorithm (117/118)... | 11/17/2009 |
| 7614856 | Linear motor, and linear compressor using the same A linear motor of the present invention has: a stator having a stationary iron core and a magnet wire; a mover having a moving iron core and a magnet; and a plate-shaped elastic member for supporting the mover in a manner to rock in the rocking directions. This cons... | 11/10/2009 |
| 7600988 | Air-demand-controlled compressor arrangement, particularly for commercial vehicles Air-demand-controlled compressor arrangement, particularly for commercial vehicles, includes a motor unit for generating a rotating movement which, by way of an interposed rotational-speed-transmitting transmission unit, drives a compressor unit for generating compr... | 10/13/2009 |
| 7537438 | Reciprocating compressor A reciprocating compressor includes: a cylinder installed inside a casing and having a space therein; a piston disposed inside the cylinder; an inner stator fixed at an outer circumference of the cylinder; a magnet fixed at an outer circumference of the inner stator... | 05/26/2009 |
| 7491038 | Reciprocating compressor A reciprocating compressor comprises a reciprocating motor (30) disposed in a casing (10), and generating a driving force; a compression unit (40) for sucking, compressing, and discharging gas by the driving force of the reciprocating motor (... | 02/17/2009 |
| 7465156 | Apparatus for mounting compressor An apparatus for mounting a compressor comprises: a bracket installed at one surface of a compressor and having a plurality of holes; a plurality of supporting members extending from a base on which the compressor is mounted and protrudingly formed to pass the holes... | 12/16/2008 |
| 7426829 | Vane control An exemplary controller includes a control valve that includes an electric actuator operatively coupled to a valve stem, a piston operatively coupled to one or more hydraulic fluid paths controlled by the control valve and including a piston shaft, a rotatable shaft... | 09/23/2008 |
| 7413415 | Reciprocating electromagnetic micro-pump, particularly for small electrical appliances Reciprocating electromagnetic micro-pump, particularly for small electrical appliances, whose pumping chamber is defined by a tubular element, movable axially, against the action of a contrasting spring, between an advanced position of normal operation of the pump a... | 08/19/2008 |
| 7413420 | Linear compressor and method of producing the same A linear compressor and a method of producing the linear compressor which do not generate eddy currents in an inside stator of a linear motor thereof, thus preventing an eddy current loss, caused by an electrical contact between a plurality of thin metal sheets of t... | 08/19/2008 |
| 7410347 | Reciprocating fluid pump assembly 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... | 08/12/2008 |
| 7404701 | Refrigerating system having reciprocating compressor A refrigerating system includes: an evaporator (2) for performing a cooling operation as a refrigerant is evaporated; a compressor (4) for compressing the refrigerant discharged from the evaporator as a mover is reciprocally moved; a condenser (86 | 07/29/2008 |
| 7385319 | Motor fixing structure of reciprocating compressor Disclosed is a motor fixing structure of a reciprocating compressor comprising: a front frame having a predetermined shape; a middle frame positioned with a certain interval from the front frame; an outer stator positioned between the front frame and the middle fram... | 06/10/2008 |
| 7381033 | Reciprocating compressor A reciprocating compressor includes a front frame; a middle frame positioned with an interval from the front frame; an outer stator having a winding coil and coupled between the front frame and the middle frame; a cylinder coupled to the front frame; a magnet mounti... | 06/03/2008 |
| 7378271 | Device for pressurized perfusion especially for culturing and/or treating cells The invention relates to a device for pumping a fluid into a bioreactor. Polsatile pumping is made possible by valve arrangement so that growth of the cells in the bioreactor is increased. Pumping function can be achieved though several mechanisms. A piston can be d... | 05/27/2008 |
| 7367786 | Linear compressor A linear compressor includes: a cylinder block forming a compressing chamber; a piston reciprocatably provided in the compressing chamber; a reciprocating member connected to the piston to reciprocate with the piston as a single body; a driver driving the reciprocat... | 05/06/2008 |
| 7363824 | Flow sensor A flow sensor for flowing media with a cylindrical housing (2) and with a sensor element located in the housing (2), the housing (2) preferably having an outside thread (3) and being screwable into a union (4) of a pipe (5) ... | 04/29/2008 |
| 7362003 | Coil switching circuit for linear electric generator In a linear electric generator (LEG) which includes apparatus for passing a permanent magnetic assembly (PMA) along linearly disposed sections of coils of an induction coil assembly (ICA) for generating voltages and power, a switching arrangement for coupling only s... | 04/22/2008 |
| 7350423 | Real time usage monitor and method for detecting entrapped air A dispensing system for feeding paste through a screen onto a workpiece monitors the position of a piston applying pressure to the paste with a linear variable differential transformer and sets limits on the slope of the piston displacement is a measure of the feed ... | 04/01/2008 |
| 7352142 | Apparatus and method for controlling stroke of reciprocating compressor An apparatus for controlling an operation of a reciprocating compressor includes a voltage detecting unit for detecting a positive half-wave voltage of an AC voltage applied to a motor of the reciprocating compressor; a current detecting unit for detecting a positiv... | 04/01/2008 |
| 7352088 | Linear electrodynamic system and method An exemplary description provided for patent searches includes a linear electrodynamic system for conversion of mechanical motion into electrical power or conversion of electrical power into mechanical motion involving advantageous use of magnetic material positione... | 04/01/2008 |
| 7348692 | Linear compressor A linear compressor comprises an external casing forming a compressing chamber, an outer core disposed in the external casing, an inner core assembly disposed inside of the outer core interacting with the outer core, and wherein the inner core assembly comprises an ... | 03/25/2008 |
| 7349293 | Pressure control apparatus and rotation drive mechanism A pressure control apparatus according to the present invention is comprised of a magnetostrictive element section disposed between respective one ends of rotating rods which have the one ends thereof arranged on the same axis in a state connected to each other such... | 03/25/2008 |
| 7335003 | Precision dispense pump Precision dispense pumps comprise a housing that has an internal chamber disposed therein. A pressurizing assembly disposed within the chamber and includes a cylindrical pressurizing member having a head, a thin-walled skirt extending axially away from the head, and... | 02/26/2008 |
| 7331772 | Compressor A compressor comprises a reciprocating motor disposed within a casing, for generating a driving force; a compressing unit for sucking, compressing and discharging gas by a linearly reciprocating motion of a piston connected to the reciprocating motor; a plurality of... | 02/19/2008 |
| 7326185 | Variable-length needle covering device of an injection device The invention relates to a needle covering device of an injection device, the injection device including a casing comprising a reservoir, in particular an ampoule, for a product fluid to be administered, and an injection needle for injecting the product fluid from t... | 02/05/2008 |
| 7323798 | Microwave displacement measurement system for an electrodynamic direct drive An electrodynamic direct drive includes an armature that travels within a housing and a drive system for moving armature in relation to housing. The drive system has two drive means, that are moved in relation to each other in the form of a coil system with at least... | 01/29/2008 |
| 7323960 | Electromagnetostrictive actuator An actuator includes an electromagnetostrictive element that has one end located on a front side and the other end located on a rear side. An output shaft penetrates the electromagnetostrictive element and is pressurized toward the rear side of the electromagnetostr... | 01/29/2008 |
| 7323800 | Outer stator for reciprocating motor and manufacturing method thereof An outer stator of a reciprocating compressor comprises: a bobbin formed as a ring shape and provided with a winding coil therein; an outer stator frame coupled to an outer circumferential surface of the bobbin and formed of a magnetic body in which a flux flows; a ... | 01/29/2008 |
| 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 |
