Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7334337 | Method of manufacturing cylindrical bearing member A small-bored cylindrical bearing member which can enhance the maintainability for a lubricating oil therein. The member has blind grooves in a seamless cylindrical central body portion of the interior hollow cylindrical surface of the bearing member. A method of ma... | 02/26/2008 |
| 7231716 | Method of making a thin wall nozzle A novel method of making a nozzle by forcing a malleable metallic disk into a series of cavities in progression using punches to draw down a formed section so metal can be pulled into the shape of the next cavity in the series. Each cavity differs in size and shape,... | 06/19/2007 |
| 7172174 | Laser welding method, laser welding structure, and throttle valve device A throttle valve and a throttle shaft are welded to each other. Here, the throttle valve is made of resin material having a transmission property for a laser beam and includes a convex portion on a surface thereof irradiated by the laser beam. By contrast, the throt... | 02/06/2007 |
| 7146729 | Fuel vapor vent valve and method of attaching same to a tank A float operated fuel vapor vent valve has body structure with an annular mounting flange formed of material weldable to a fuel tank and the flange is spin welded to the tank. The float has surfaces thereon which slidably engage corresponding surfaces in the float c... | 12/12/2006 |
| 7131179 | Mounting structure and method of mounting a component in a structure A main body 110 of a component comprises a projection 120 protruding from an axis thereof in the direction of a normal, a fitting shaft portion 111 to be fitted into an opening 811 of a structure 810, and a mounting plate portion | 11/07/2006 |
| 7025330 | Bar-stock ball valve A barstock body fluid control valve comprising a barstock body of preselected material having an inlet end and an outlet end, and a preselected cross section defining the outer walls; a through machined main flow port located eccentrically on the inlet and the outle... | 04/11/2006 |
| 6997285 | Shaft seal with lubrication device A shaft seal assembly for use with a reciprocating or rotating shaft includes a shaft seal, a lubricant-storing ring, and a retainer. The retainer and ring can be formed as a subassembly and then combined with a shaft seal. The assembly provides a lubricated shaft a... | 02/14/2006 |
| 6988317 | Valve integrally associated with microfluidic liquid transport assembly The present invention discloses a valve integrally associated with a microfluidic transport assembly that is useful for regulating the flow of a liquid sample through an analytical instrument such as, for example, a biosensor. The valve integrally associated with a ... | 01/24/2006 |
| 6981512 | Tubular flow conduit with in-line integrated check valve and method of making same An integrated in-line tube and check valve assembly fabricated by end-form mandrel expanding an outlet end portion of deformable tube stock, such as metal, of nominal starting diameter, and concurrently end-forming a valve seat on the inside of the expanded tube sec... | 01/03/2006 |
| 6971172 | Piezoelectric control valve adjustment method A method for adjusting piezoelectric valve components to create a precise interface between a piezoelectric actuator and a movable valve plunger is provided which includes the steps of conducting a coarse adjustment prior to assembly followed by a fine adjustment af... | 12/06/2005 |
| 6749412 | Check valve retainer for a scroll compressor A check valve retainer for a scroll compressor includes a retaining lip that fits into a recess formed in a scroll. The retaining lip may be manufactured as an integral part of the check valve retainer for press fitting or may be formed by an expansion fit locking m... | 06/15/2004 |
| 6718633 | Process for manufacturing valve trim assemblies A process for manufacturing a valve trim assembly. The process comprises providing a flow disk having an outer diameter, an inner diameter, and an outer disposable flow disk portion, providing a separation disk having an outer diameter and an inner diameter, wherein... | 04/13/2004 |
| 6612325 | Control valve assembly of valve assembly-injection-molded control valves or modules A control valve assembly comprising at least two control valves which may be used, for example, to throttle the air intake of an internal combustion engine. The assembly is provided with a centrally arranged, force-transmitting shaft (32). The control val... | 09/02/2003 |
| 6446338 | Method of sluice gate valve fabrication An improved method of sluice gate valve fabrication in which a cylindrical rod of an appropriate diameter is first cut and then the cylindrical rod is forged into a blank for a disk-shaped sluice gate body and pivot stems, with the pivot stems respectivel... | 09/10/2002 |
| 6322050 | Method of manufacture of element having ceramic insert and high-strength element-to-shaft connection for use in a valve An element for controlling the fluid flow rate through a fluid valve. The element may include a generally spherical metal housing encasing a cylindrical ceramic insert. The element may also include a cone-shaped metal housing encasing a cylindrical cerami... | 11/27/2001 |
| 6293012 | Method of making a fluid flow module A method of fabricating a module having fluid flow channels in communication with a diaphragm valve using self-bondable polyimide sheets wherein the sheets are directly interfacially bonded to one another except in the region corresponding to the diaphrag... | 09/25/2001 |
| 6263569 | Method of manufacturing a standardized fuel injector for accommodating multiple injector customers A method of manufacturing and testing a standardized fuel injector configuration accommodates multiple fuel injector customers. Initially, a fuel injector is molded, the fuel injector having an inlet end and an outlet end. Passage of fuel through the fuel... | 07/24/2001 |
| 6226866 | Method of making carbon-carbon composite valve for high performance internal combustion engines The present invention provides a carbon-carbon (C/C) composite valve structure useful for high temperature internal combustion engines comprising (a) a carbon-carbon (C/C) composite valve stem having a flared end and a non-flared end opposite the flared e... | 05/08/2001 |
| 6213141 | Rotary valve apparatus and associated methods A rotary valve is provided with an elliptical valve disc that seats against a seal element operatively mounted in an elliptically shaped depression formed in the rigid annular portion of a seal cartridge structure carried by the valve body. Due to the ell... | 04/10/2001 |
| 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 |
| 6178638 | Fabrication method for a flange-type ball valve A fabrication method for an improved structure practical forged one-piece flange-type ball valve that consists of the forging the initial two blanks of the water inlet seat and the ball valve seat for a one-piece flange-type ball valve, based on the bluep... | 01/30/2001 |
| 6032350 | Method of slotted component manufacture This invention relates to a method for manufacturing a plurality of longitudinally extending slots in the bore of a component (1). One example of such a component is the sleeve element of an automotive power steering rotary valve. More particularly the in... | 03/07/2000 |
| 5979052 | Engine injector structure and hard thread milling method and apparatus for forming same Hard thread milling methods and equipment provide more precise alignment for a threadably retained component A fuel injector body with a cavity for a solenoid valve is processed by steps including heat treatment before milling threads and also milling a p... | 11/09/1999 |
| 5979873 | Method of making ball valves A method of making ball valves, including the steps of forging two symmetrical ball valve halves into shape such that they each have a spherically curved outer wall and a cylindrical inner wall joined at one end to the outer wall and otherwise separated b... | 11/09/1999 |
| 5926955 | Microvalve with joined layers of metal parts and process for manufacture of a microvalve A microvalve includes a chamber, with a closing member being movable therein. The microvalve is made of two layers. The two layers of the microvalve are formed separately by being impressed as a mold into a moldable material and then filling the mold with... | 07/27/1999 |
| 5906047 | Manufacture of grease fittings and blanks therefor A grease fitting is made by forming its outer shell in a series of cold forging steps to make a blank with the necessary thread blank at one end, a hexagonal center portion, and with a grease-fitting-mating nipple outline at the other end. Threads are rol... | 05/25/1999 |
| 5894663 | Method for forming a ball value assembly A method for assembling a rotary ball valve assembly utilizes an axially directed compressive force to urge an annular seal into sealing engagement with a rotatable ball and, while the compressive force is applied, inwardly deforming a tubular member atta... | 04/20/1999 |
| 5890286 | Ball valve with full opening and a method for its manufacture The invention relates to a ball valve (3) with full opening between two tubes (1, 2) and the manufacturing method thereof. The ends (6, 7) of the tubes are sealed in the valve against the valve ball (5) opening and closing the valve and rotating about its... | 04/06/1999 |
| 5794591 | Throttle valve for an internal combustion engine A throttle valve for an internal combustion engine includes a body having a throttle bore defining an axis. A throttle plate for controlling air flow through the throttle valve is molded within the throttle bore, thereby providing a relatively exact throt... | 08/18/1998 |
| 5765283 | Method of making a flow controller A mass fluid flow controller has a valve which is controlled by a controller rod which is substantially pivotally mounted on a metallic diaphragm which stretches and unstretches with the movement of the rod. The actuation of the rod movement is by the exp... | 06/16/1998 |
| 5727413 | Process for hot forming hollow spherical bodies A process for forming a hollow spherical body and the spherical structure so formed. The forming includes a first phase in which a blank is provided with a half having a spherical outer surface, a remaining part having two concentric, outer and inner wall... | 03/17/1998 |
| 5697154 | Method of producing a fluid injection valve A fluid injection valve in which an orifice plate is produced by defining surfaces of walls forming an orifice on a plate-like basic material by pressing with a punch, forming a protective layer on a surface of the basic material, grinding a surface of th... | 12/16/1997 |
| 5694686 | Method for assembling a medical valve A closed system, needleless valve device includes a generally tubular body defining an internal cavity. On the proximal end of the body there is an opening which is preferably sufficiently large to receive an ANSI standard tip of a medical implement. The ... | 12/09/1997 |
| 5489195 | Liquid ring pump having a sheet metal valve plate Liquid-ring gas pump with a working chamber in which an impeller (6) rotates and which is bounded axially by a control plate (7) past which the impeller (6) moves with a small clearance and which has at least one intake and/or discharge opening (21, 22, 2... | 02/06/1996 |
| 5463810 | Method of manufacturing plunger barrel A plunger barrel has a sliding bore in which a plunger is slid, a sleeve acceptor in the shape of a hole for a control sleeve which is formed in an intermediate portion of the sliding bore and a window portion which is opened in a wall defining the sleeve... | 11/07/1995 |
| 5392516 | Method for forming a spool valve sleeve A valve sleeve is made from a tube having smooth inner and outer diametri surfaces by forming a shallow channel on the tube so that a channelled region of the tube is thinner than other regions of the tube. The tube is confined in a sleeve whose inner pe... | 02/28/1995 |
| 5390408 | Slotting Apparatus for machining an angularly disposed array of slots (FIG. 7) concentric with the axis (85) of a bore of a valve sleeve (1) which has a sleeve holder (3) which is rotatably indexed for locating the arcuate position of each slot of the array, a cut... | 02/21/1995 |
| 5348232 | Electromagnetically actuated fuel atomising and metering valve for a heat engine fuel supply device The present invention involves an electromagnetically actuated fuel atomizing and metering valve. The valve has a metal body housing an electromagnet, a core, and an injection nozzle. The injection nozzle has at least one fuel injection orifice passage co... | 09/20/1994 |
| 5277216 | Method of attaching a valve disc to a drive shaft The drive shaft is formed with a longitudinally extending groove and the wall of a blind bore formed in the valve disc for receiving the shaft is formed with a projection which fits in the groove by a punching operation. The mating parts are readily made ... | 01/11/1994 |
| 5246655 | Method of making thermoplastic valve rotors A method of making a rotor for a rotary valve including cutting a round slug of a plastic material to a desired length, turning the round slug on a lathe to provide a desired outside diameter, milling the slug on a vertical milling machine to form a plura... | 09/21/1993 |
