Abstract: To further optimize a refrigerant compressor, comprising a compressor housing, at least one cylinder chamber arranged in the compressor housing, a piston oscillatingly movable in the cylinder chamber, a suction chamber which is arranged upstream from the cylinder chamber and from which refrigerant enters the cylinder chamber, a pressure chamber which is arranged downstream from the cylinder chamber and into which refrigerant compressed in the cylinder chamber enters, a muffler channel which extends between a first end and a second end and via which compressed refrigerant flows from the pressure chamber into the outlet channel, with respect to the space requirement and the attenuation of pulsations, it is proposed that the muffler channel comprise an inlet opening located between the first end and the second end.

Abstract: A heating element, including a sensor conductor, two resistive conductors, with one resistive conductor arranged on one side of the sensor conductor and an other resistive conductor arranged on an other side of the sensor conductor such that the sensor conductor and the two resistive conductors are substantially parallel and plastic electrical insulation surrounding the sensor conductor and each resistive conductor.

Abstract: The invention relates to a heating cable mat (1) comprising a net-shaped supporting element (2) and a heating cable (4) which is arranged on the supporting element. The surface (3) of the supporting element is adhesive, and the heating cable (4) is arranged in abutment against the supporting element (2). To further fix the heating cable (4), a second net-shaped supporting element (10) is arranged adjacent to the heating cable mat so that the heating cable (4) is located between the two supporting elements (2, 10).

Abstract: The invention relates to a multiflow liquid ring pump, comprising a rotor housing that encompasses the pump rotor. A side shield is arranged on both front ends. Each side shield has an inlet and an outlet on the side facing the other side shield, the inlet and outlet being interconnected. An admission hole for the feed line and a pressure hole for the discharge line are provided. Each side shield has at least one additional connection hole. The invention is characterized in that the outer jacket surface of each side shield (3, 4) flushes with and closes the outer jacket surface of the rotor housing (2) and in that the inlet (7, 9), the outlet (8, 10) and the connection hole (11, 12, 13, 14) are connected by channels (15, 16, 30, 31) arranged in the rotor housing (2).

Abstract: A centrifugal fan capable of exhibiting enhanced waterproof performance without using a resin mold while being simplified in structure. Air is sucked from one axial side of a revolving shaft of an electric motor and discharged in a radial direction of the revolving shaft. A second side wall of a casing and a wall of a blade support of an impeller have opposite surface portions arranged opposite to each other in an axial direction of the revolving shaft, respectively. The opposite surface portions are formed into a configuration which permits the opposite surface portions to cooperate with each other to provide a labyrinth structure for preventing water from intruding into a space defined between a cup-like member and the second wall from an outside in the radial direction of the revolving shaft. A first side wall and the second side wall are formed with drainage through-holes.

Abstract: An intraluminal catheter customizable to accept various diameter guide wires is disclosed. The catheter has a large bore lumen for receiving a large diameter guide wire, and alternatively, for receiving an adaptor tube therein. The adaptor tube includes a small guide wire lumen for accepting smaller guide wires of various diameters. With the adaptor tube telescopically disposed within the large bore catheter, the distal end of the adaptor tube optionally projects beyond the distal end of the large bore catheter. To minimize any onset of snow plowing effects at the distal end of the catheter, the outside diameter of the adaptor tube is made to closely conform to the inside diameter of the large bore catheter. An end cap is tightly fitted to the proximal end of the large bore catheter. The end cap secures the large bore catheter to the proximal end of the adaptor tube by the latter's interference fit with a concentric stub tube on the end cap.

Abstract: A compressor includes a compressing section accommodated in a hermetic container and a motor section, coupled to the compressing section, for driving the compressing section. The motor section has a bored section on an end of the compressing section side and a motor having two rotor poles and including a rotor core in which permanent magnets are buried. The compressing section includes a bearing made of non-magnetic material and extending inside the bored section. This structure reduces both of loss torque due to magnetic attraction between an inner wall of the bored section and the bearing, and eddy-current-loss in the bearing, so that a highly efficient compressor is obtainable.

Abstract: This system provides methods and apparatus for performing microanalytic and microsynthetic analyses and procedures. Specifically, the system provides a microsystem platform for use with a micromanipulation device to manipulate the platform by rotation, thereby utilizing the centripetal force resulting from rotation of the platform to motivate fluid movement through microchannels embedded in the microplatform. The microsystem platforms of the system are also provided having microfluidics components, resistive heating elements, temperature sensing elements, mixing structures, capillary and sacrificial valves, and methods for using these microsystems platforms for performing biological, enzymatic, immunological and chemical assays. An electronic spindle designed rotor capable of transferring electrical signals to and from the microsystem platforms of the system is also provided.

Abstract: A gasket 36 is interposed between an end face 341 of a front housing 11 and an end face 351 of a rear housing 12. A coned disc spring 37 is interposed between an end face 192 of a cylinder 19 and the end face 341 of the front housing 11. When the end faces 341, 351 are caused to approach each other so as to be joined together, the coned disc spring 37 is first held by the end face 341 of the front housing 11 and the end face 192 of the cylinder 19. When the end faces 341, 351 are caused to approach each other further so as to be joined together, the gasket 36 is held between the end faces 341, 351. Thus, it is ensured that the cylinder and the seal material interposed between the first housing and the second housing are held therebetween.

Abstract: The present invention provides a heating apparatus which can be implemented as various articles for keeping human body warm, preventing from cold weather, insulating cold air, etc., e.g., warming clothes, electric blankets, hot compress pads, and curtains for insulating cold air. According to the invention, the heating apparatus includes a soft matrix, a metal yarn and a power supply. The metal yarn is integrated with the soft matrix to construct a loop pattern by a textile process, and has a first end line and a second end line. The first end line and the second end line of the metal yarn are detachably connected to the power supply. When the first end line and the second end line of the metal yarn both are connected to power supply, the power supply supplies the metal yarn with electric energy such that the metal yarn transfers the supplied electric energy into heat.

Abstract: A targeted tissue region in a body is treated by a tissue heating element attached to a carrier. The carrier is intended, in use, to be temporarily mounted to an exterior of a catheter body, such as an endoscope. The catheter body is deployed, with the carrier mounted on it, into the targeted tissue region. The tissue heating element is operated, e.g., to form one or more tissue lesions, after which the catheter body is retrieved from the targeted tissue region. The carrier can then be removed from the catheter body, allowing the catheter body to be subsequently used for another purpose.

Abstract: A safe electrical heat energy generator which comprises a heater unit equipped with a set of systematically organized heat radiating metal fins. A feature of the invention is its reenforced compact structure in which a heating element arrangement and the heat radiating metal fin arrangement are manufactured as a single heater unit structure. In such a structure, a heating element is surrounded with an insulating layer and enclosed inside a central heat conductive tubing of the framework for the metal fin arrangement, thereby defining the major components of the heater unit. In this manner, the entire heater unit structure is the source of radiant heat energy, not simply the heating element itself.

Abstract: A motor driven compressor has a motor and a compressing mechanism connected to the motor through a rotary shaft, which is located within a housing, and an offset of phase is set between a stator and a rotor. The rotor is mounted to the rotary shaft, allowing the rotor to rotate so that it may be magnetized. Further, the motor driven compressor has a driving member driven together with the rotary shaft, a communication gas hole formed within the housing and extending from a suction port to a discharge hole, and a mark positioned along a radial axis on a first end surface of the driving member. The mark is used for setting the offset of phase between the stator and the rotor on the basis of a mark, by positioning the mark opposite the suction port. Accordingly, the motor driven compressor has a structure, which allows the rotor to be readily magnetized and may reliably set the offset of phase between the rotor and stator for magnetizing the rotor.

Abstract: A de-icing system for de-icing a window pane, in particular a window pane of a motor vehicle, comprising a reservoir for receiving a de-icing liquid, a heating element for heating the de-icing liquid, a pump for pumping the de-icing liquid from the reservoir through the heating element to at least one outlet, wherein the at least one outlet is shaped such that the heated de-icing liquid is nebulized and precipitates as distributed hot droplets on the window pane to be de-iced.

Abstract: A shaft sealing assembly is located in a suction chamber of a swash plate type compressor to seal the space between a drive shaft and a housing. A first end portion of the drive shaft is supported by a first radial bearing. A second end portion of the drive shaft is supported by a second radial bearing. The suction chamber is closer to the first end portion of the drive shaft than the first radial bearing is. An axial passage is formed in the drive shaft to connect the suction chamber to the crank chamber. An inlet of the axial passage is closer to the second end portion than the second radial bearing is. An outlet of the axial passage is closer to the second end portion than the first radial bearing is.

Abstract: A water-powered sump pump that utilizes a relatively higher pressure water ported through a self-reversing valve to a reversible stroke power cylinder having a movable member mechanically coupled to a pumping chamber for movement of a movable pumping member in the pumping chamber, movement of the movable pumping member forcing sump water to a discharge. The volumes of the power cylinder and pumping chamber are different such that relatively high pressure, low volume flow to the power cylinder results in relatively high volume, low pressure flow from the sump pumping chamber. The discharge from the power cylinder is backflow prevented with respect to the discharge from the sump pumping chamber.

Abstract: A system adapted to control the operation of a fine needle aspiration (FNA) biopsy device provided with a syringe to which is transferred a tissue sample extracted from an internal target in the body of a patient in which the needle is injected. Associated with, this biopsy device is an ultrasound imaging instrument having a transducer placed on a body site overlying the internal target and coupled to a CRT monitor. The needle is injected into the patient through a guide passage in the transducer, hence displayed on the CRT screen is an image of the internal target and that of the advancing needle. The biopsy device is controlled by a pneumatic or motor-driven mechanism operatively coupled to a guide tube through which the needle extends. For a first phase of an operating cycle, the mechanism advances the needle toward the target to extract a tissue sample therefrom. In a second operating phase, the mechanism acts to retract the tissue loaded needle from the body of the patient.

Abstract: A heating substrate useful in an electronic blanket or a hot compressing pad is provided. The heating substrate includes a flexible fiber layer and a graphite thread. The graphite thread is wound on the flexible fiber layer with a given winding distance. The graphite thread is stitched onto the flexible fiber layer by use of a positioning wire. A slot is formed appropriately on the flexible fiber layer for forming a given number of the graphite threads and the layer thereunder as a unit of the heating substrate of the invention. Thereby, the thick flexible fiber layer is prevented from being distributed unevenly when in use.

Abstract: A method and an apparatus 12 for quickly heating a portion of a vehicle 10, such as a windshield 22 or backwindow 20. Particularly, apparatus 12 includes several conductors 40 which are coupled to electrical ground potential 42 and which have opposed ends 44, 46 which are alternatingly coupled to a source of energy 26, thereby allowing the portion of the vehicle 10 to be quickly heated.

Abstract: An improved hypodermic needle that greatly reduces the pain associated with injection through the skin that includes a translucent hub for quick observation of flashback, a regular-wall needle with multiple strategically-placed lateral perforations ending with a blade-like honed edge orifice which the remainder of the injection fluid escapes. The increase in localized surface area through which fluid leaves the needle decreases the mechanical distortion of the surrounding tissue thereby lessening pain receptor stimulation and reducing the perception of pain during the injection process.