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| Number | Title | Issue Date |
| 7849600 | Method of producing a valve arrangement for an expansion valve The invention relates to a method of producing a valve arrangement and to a valve arrangement for an expansion valve, which is provided in a vehicle air conditioning system operated with refrigerant and has a basic opening in the valve seat, the cross section of thi... | 12/14/2010 |
| 7260884 | Method of manufacturing a drum assembly associated with video tape machine A method of manufacturing a drum assembly associated with a digital betacam video tape machine is disclosed. The method includes providing a helical scan drum assembly having a stationary upper drum, a stationary lower drum and a plurality of rotating read/write hea... | 08/28/2007 |
| 7238325 | Very small chemical device and flow rate adjusting method therefor There is provided a micro chemical device with a valve function for which the pressure resistance is high and the channel cross-sectional area does not depend on the fluid pressure, and which furthermore enables the suppression of the adsorption of biological matter... | 07/03/2007 |
| 7210494 | Valve and method for producing a valve A valve and a method for producing a valve, in particular for coolant circuits, having a valve seat (2) including a valve seating element (1) for a valve body (3) by stamping the pole shoe to form at least one sealing surface (8) to avoid... | 05/01/2007 |
| 7070166 | Powdered metal inlay Methods and apparatus are disclosed for making substantially nonporous powdered metal (P/M) inlays on substrates using hot-isostatic-pressure (HIP). Methods described herein differ from conventional practice in their use of new apparatus for steps including: formati... | 07/04/2006 |
| 7063272 | Fuel injection nozzle and method of manufacture An injection nozzle (10), for use in a fuel injector for an internal combustion engine, has an inner valve needle (26) which is engageable with an inner valve seating (24, 58) to control fuel delivery through one or more first nozzle outlets ( | 06/20/2006 |
| 7001565 | Seals A composite seal face ring has an inner ring (60) made of material with good tribological properties, the inner ring (60) being pre-compressed by an outer ring (64) with a high tensile strength and a thermal coefficient of expansion substantiall... | 02/21/2006 |
| 6969047 | Ball valve seat seal A ball valve includes a body having a passageway there through with a ball member disposed in the passageway and mounted for selective rotation between valve open and valve closed positions to control fluid flow. A pair of flange grooves are provided in the body on ... | 11/29/2005 |
| 6954977 | Circumferential ablation device assembly and methods of use and manufacture providing an ablative circumferential band along an expandable member A medical balloon catheter assembly includes a balloon having a permeable region and a non-permeable region. The balloon is constructed at least in part from a fluid permeable tube such that the permeable region is formed from a porous material which allows a volume... | 10/18/2005 |
| 6920690 | Method of manufacturing a fuel injector seat A fuel injector seat for a fuel injector assembly, and more particularly for a high-pressure fuel injector assembly, having a number of features for minimizing the formation of combustion chamber deposits on the seat, providing a selected finish on a needle-sealing ... | 07/26/2005 |
| 6761182 | Method for configuration of a valve A method of configuring a valve comprised of a valve seat, a valve stem, a valve guide, and a relief compression spring. The method comprises calculating a compression force required to move the valve stem relative to the valve seat, using that calculated force to m... | 07/13/2004 |
| 6665926 | Method and apparatus for improved valve seating of a fuel injector by coining and a valve made thereby A method for making a valve assembly is disclosed. The method includes providing a first work piece having a longitudinal axis and a first end and providing a second work piece having a surface. The method also includes disposing the first work piece and ... | 12/23/2003 |
| 6564457 | Machining method of valve seat with laser-clad metal Immediately after a laser-cladding is performed, a control surface is formed by machining the clad metal while an extra metal is left. An intermediate inspection is performed about presence/absence of any defect in the clad metal using the control surface... | 05/20/2003 |
| 6564456 | Method of finishing a valve seat for ball valves, in particular for fuel injection valves in internal combustion engines A method for finishing a valve seat for ball valves, in particular for fuel injection valves in internal combustion engines. The workpiece to be finished and a finishing tool are driven in an opposite direction of rotation, whereby the axes of rotation of... | 05/20/2003 |
| 6543136 | Method for improved valve seating of a fuel injector by coining and a valve made thereby A method for making a valve assembly is disclosed. The method includes providing a first work piece having a longitudinal axis and a first end and providing a second work piece having a surface. The method also includes disposing the first work piece and ... | 04/08/2003 |
| 6526656 | Coating for a fuel injector seat A fuel injector seat for a fuel injector assembly, and more particularly for a high-pressure fuel injector assembly, having a number of features for minimizing the formation of combustion chamber deposits on the seat, providing a selected finish on a need... | 03/04/2003 |
| 6460559 | Valve having ceramic components and associated fabrication method A valve for controlling the flow of a fluid comprises a housing, a flow-control element disposed within the housing, at least one seat operably engaging the flow-control element, and a biasing device for urging the seat and the flow-control element relati... | 10/08/2002 |
| 6394425 | Carburetor with a rotary throttle valve A rotary throttle valve type carburetor including an air intake passage extending through a carburetor body, a cylindrical valve chamber formed perpendicularly to the air intake passage, a throttle valve inserted into the valve chamber, and a throttle val... | 05/28/2002 |
| 6305459 | Method of making spray-formed articles using a polymeric mandrel Method of making valve seats by thermally spraying bulk material. The method includes the steps of: (i) preparing a cylindrical polymeric mandrel having an outside dimension not greater than the desired inside dimension of the desired insert, the mandrel ... | 10/23/2001 |
| 6270849 | Method of manufacturing a metal and polymeric composite article A method of manufacturing a metal and polymeric composite article by the following steps. Droplets of spray deposited metal and spray deposited polymeric material are combined to form an article having the polymeric material interspersed within the metal.... | 08/07/2001 |
| 6257496 | Fuel injector having an integrated seat and swirl generator A fuel injector with a body having an inlet portion, an outlet portion, and a fuel passageway extending from the inlet portion to the outlet portion along a longitudinal axis. An armature proximate the inlet portion of the body. A needle operatively conne... | 07/10/2001 |
| 6240947 | Solenoid valve seat and method of making same An improved, air tight valve seat for a pneumatic brake system is achieved by using a plastic valve seat that is coined by the valve member. The valve member is a harder material, for example metal, than the thermo-plastic valve seat. The valve member is ... | 06/05/2001 |
| 6189816 | Method for producing a valve-seat body for a fuel injection valve, and corresponding fuel injection valve Besides the conventional process steps of manufacturing a valve-seat body, forming a through opening inside the valve-seat body, forming a valve-seat as a frustoconical section of the through opening, and forming a guide area, the proposed method for manu... | 02/20/2001 |
| 6178637 | Method and apparatus for producing rotationally symmetrical valve seat faces of high surface quality in valves In known methods for producing rotationally symmetrical valve seat faces, the valve closing body is brought into contact with the valve seat face of the valve seat body, set into a rotary motion, and set parallel to the rotary axis into an oscillating mot... | 01/30/2001 |
| 6173914 | Valve and method for producing a valve seat for a valve A valve includes an orifice disk element having at least two sheet metal layers lying in sandwich fashion against one another. The orifice disk element includes at least a base region with the opening geometry necessary for spray discharge of the medium, ... | 01/16/2001 |
| 6173494 | Method of making a valve seat A valve seat for a ball valve, especially a fuel-injection valve for an internal-combustion engine is finely ground to form a trough in the conically-ground seat with a circular arc cross section in planes of the axis and of a depth to eliminate shape var... | 01/16/2001 |
| 6138351 | Method of making a valve seat A valve seat and cylinder head arrangement wherein the valve seat insert is formed from a material having an elongation at rupture of greater than 1 percent so as to facilitate tapered pressing to form a bonded valve seat.... | 10/31/2000 |
| 6035532 | Groove means in a fuel injector valve seat A method of manufacturing a conical valve seat, wherein the valve seat surface is placed in alignment with a cutting edge of a pattern impression pin, a predetermined amount of pressure is applied to the valve seat to move the seat surface relative to the... | 03/14/2000 |
| 5992016 | Method of controlling the magnetic gap length and the initial stroke length of a pressure surge fuel pump A method of partially fabricating a precisely dimensioned fuel pump wherein selected pump elements are partially assembled before those elements are machined. After machining, the partially assembled elements exhibit enhanced concentricity.... | 11/30/1999 |
| 5983495 | Method of making spray-formed inserts Method of making seat inserts by thermally spraying bulk material. The method includes the steps of: (i) preparing a mandrel having an outside dimension not greater than the desired inside dimension of the desired insert, the mandrel having a part to prov... | 11/16/1999 |
| 5666632 | Valve seat insert of two layers of same compact density A two layer valve seat insert and a method for its manufacture is described. The method comprises the steps of preparing two powder mixtures; a first powder mixture for forming the valve seat face layer; a second powder mixture for forming the valve seat ... | 09/09/1997 |
| 5661895 | Method of controlling the magnetic gap length and the initial stroke length of a pressure surge fuel pump Disclosed herein is a method of machining and assembling members of a solenoid fuel pump to produce a magnetic gap length between an armature assembly which includes an armature member having first and second axially spaced end surfaces, and a radially ou... | 09/02/1997 |
| 5649360 | Method of making a vent valve A vent valve for a thermostatic valve of a coolant circuit of an internal combustion engine has a ball with a radius and a diameter and serving as a sealing element, and a one-piece metal cage for the ball. The cage has a pot-shaped part with an inside di... | 07/22/1997 |
| 5617632 | Methods for forming a contoured regulator seat A method for forming a contoured regulator seat in the substrate of a fluid flow regulator having a membrane with an elastic flexure. The method may involve the steps of deflecting the flexure into the substrate to form the contoured regulator seat while ... | 04/08/1997 |
| 5239751 | Method of producing nozzle for solenoid valve A method of producing a cylindrical nozzle incorporated in a fuel injection valve for an internal combustion engine including the steps of: setting a cylindrical nozzle blank on a second die so that a lower bottom face of the cylindrical nozzle blank rest... | 08/31/1993 |
| 5139229 | Ball valve and method of assembly A ball valve (10) has a one-piece valve body (12) with a small diameter bore (16) and an opposed large diameter bore (18) in fluid communication with a valve chamber (14). An annular flange (40) projects within the large diameter bore (18) and a washer-ty... | 08/18/1992 |
| 5136774 | Method of making a valve with adjustable valve seat A direct solenoid operated poppet valve having an adjustable valve seat that provides a selectively variable flow orifice for supplying a preset air flow requirement. The poppet valve spool stroke is set in accordance with the preset air flow requirement.... | 08/11/1992 |
| 5113908 | Multistep trim design A trim design (40) comprises a housing (42) having a generally cylindrical passage (44) passing therethrough. Disposed between an inlet (50) and an outlet (48) is a stepped plug (52) having an axial length. Telescopically receiving the stepped plug (52) i... | 05/19/1992 |
| 4970484 | Composite elastomer-tipped tubular metallic device for armature and needle valve applications A composite elastomer-tipped tubular metallic device for armature and check valve applications has a hollow tubular metal body and a generally spherical elastomer ball fitted into an end of the body so as to project outwardly beyond the body end. Also, th... | 11/13/1990 |
| 4856164 | Method of making a valve construction A valve construction and method of making the same are provided, the valve construction comprising a housing, a valve seat carried by the housing, a movable lever carried by the housing and having an opening passing through opposed sides thereof, a valve ... | 08/15/1989 |
