Abstract: The present invention relates generally to the field of accessories for use with impact drivers that are useful for removing a valve seat from a fitting. The device has a first end, a second end and a central body portion. The first end has a shaft that allows the device to be attached to the chuck of an impact driver or drill. The second end has a head that can be placed within a valve seat. Once inserted into the valve seat, the impact driver or drill can be used to spin the device to remove the valve seat from the surrounding fixture.

Abstract: An apparatus for rotating a seat relative to ball in a valve lapping machine includes a seat spindle assembly, an airbag assembly with a first and a second airbag, and a linear compensator affixed to a frame of the seat spindle assembly and to the seat tooling adapter plate. The airbag assembly is adapted to apply contact force between the seat and the ball. The linear compensator has a top plate, middle plate and a bottom plate. A first set of rails extends in a first direction so as to allow movement between the top plate and the middle plate, while a second set of rails which extends in a second direction perpendicular to the first direction allow movement of the bottom plate relative to the middle plate. A ball valve lapping machine utilizing this apparatus is also provided.

Abstract: An industrial or residential modular locking pin which captures and retains items with optional adjustable pressure prior to tightening. An elongate body carries a plurality of locking balls that are selectively urged radially outwardly to extend past an outer surface of the pin to retain a mounting aperture of a workpiece. Manual and automatically actuated configurations are disclosed.

Abstract: An apparatus and method for refinishing a tapered surface of a machine tool component. The apparatus includes a head defining at least three tapered segments which are configured to conform precisely to the taper of the machine tool component being refinished. Each segment includes a surface for receiving an abrasive strip, the surfaces configured to conform and confront a conical surface of a taper to be refinished. The head is adapted to engage the tapered surface of the machine tool component so that upon rotation of the head, the abrasive strips abrade the conical surface of the component. A head for refinishing a spindle bore includes three outwardly extending segments whereas the head for refinishing a tool holder shank surface includes three segments extending between annular portions, each segment having an inner tapered surface for receiving the abrasive strips.

Abstract: A lapping system includes a shaft. A stabilizing member is coupled to the shaft. A lapping tool is coupled to the shaft and spaced apart on the shaft from the stabilizing member. An adjustable force device is coupled to the shaft, the stabilizing member, and the lapping tool. The adjustable force device is operable to be adjusted in order to cause the stabilizing member to support at least some of the weight of the lapping tool. The lapping system may be coupled to a valve body having a valve face to ensure alignment of the lapping tool and the valve face while providing a controlled, vertical force from the lapping tool to the valve face.

Abstract: A method for machining a sealing seat of a shut-off valve in a power generating or industrial plant. An upper valve part and the internal housing fittings are removed from the housing of the shut-off valve to thereby expose a housing opening. A clamping device with a counter-bearing is introduced through the housing opening into the connection pipe and fastened to its inner wall. A machine tool with a bearing is introduced through the housing opening and mounted with its bearing on the counter-bearing. A machining step is carried out with the machine tool on the sealing seat. Then the machine tool is detached and removed through the housing opening. The clamping device is detached from the connection pipe and removed through the housing opening. Then, the upper valve part and the internal fittings are reattached to the housing.

Abstract: A lapping system includes a shaft. A stabilizing member is coupled to the shaft. A lapping tool is coupled to the shaft and spaced apart on the shaft from the stabilizing member. An adjustable force device is coupled to the shaft, the stabilizing member, and the lapping tool. The adjustable force device is operable to be adjusted in order to cause the stabilizing member to support at least some of the weight of the lapping tool. The lapping system may be coupled to a valve body having a valve face to ensure alignment of the lapping tool and the valve face while providing a controlled, vertical force from the lapping tool to the valve face.

Abstract: An adjustable removable grinding arrangement for grinding inside annular openings in bottom portions of water hydrants. The grinding arrangement comprises a router having an energizable motor with a grinding tool attached to an end thereof, a base plate supportively attached to an end of a housing of the router, a support plate pivotally attached to the base plate attached to the router, and an annular guide ring having securement studs for removable securement to a rim of an opening on a lower end of a hydrant. The support plate is rotatable on a plurality of wheel members engaged with the guide ring to permit the grinding tool of the router to remove material from the rim of the hydrant as the support plate is rotated about the guide ring.

Abstract: In one embodiment, a device to resurface a sealing surface of a fluid connector in a fluid delivery component is provided. The device may include a housing adapted to be reversibly coupled to the fluid connector. Included may be an arbor which is at least partially disposed in the housing, and both rotationally and axially movable within the housing. The arbor may have a first end proximal to the sealing surface and a second distal end adapted to receive rotational actuation. A resurfacing head may be positioned at the first end of the arbor, and may have a resurfacing face that includes a circular resurfacing groove adapted to fit a circular ridge on the sealing surface of the connector. Rotational contact between the groove and the ridge may cause the resurfacing of the sealing surface. The housing may keep the resurfacing head and the sealing surface aligned during the resurfacing.

Abstract: A valve seat finishing device for use with a spindle having a drive is provided. The valve seat finishing device includes a driver, a valve seat finishing tool, an annular finishing surface on the tool, and a non-dressable super abrasive on the annular finishing surface. The driver has a centering portion and a drive portion. The centering portion is received in a receiving portion of the drive and the drive portion is received in the drive so that rotation of the spindle causes the socket drive to concentrically rotate the driver. The valve seat finishing tool is threadably secured to the driver. The non-dressable super abrasive provides a lapped finish to the valve seat.

Abstract: In one embodiment, a device to resurface a sealing surface of a fluid connector in a fluid delivery component is provided. The device may include a housing adapted to be reversibly coupled to the fluid connector. Included may be an arbor which is at least partially disposed in the housing, and both rotationally and axially movable within the housing. The arbor may have a first end proximal to the sealing surface and a second distal end adapted to receive rotational actuation. A resurfacing head may be positioned at the first end of the arbor, and may have a resurfacing face that includes a circular resurfacing groove adapted to fit a circular ridge on the sealing surface of the connector. Rotational contact between the groove and the ridge may cause the resurfacing of the sealing surface. The housing may keep the resurfacing head and the sealing surface aligned during the resurfacing.

Abstract: A linear actuated disk valve for a fluid conveyance system constructed with a valve body having an internal chamber and a passage through the valve body, the valve body having opposite ends with external connectors that continue the passage and that are connectable to other components in the fluid conveyance system, the improvements being a displaceable cam action closure member in the chamber of the valve body, the closure member having a disk retainer assembly with a disk retainer and at least a pair of circular closure disks engageable with the disk retainer formed by a cam on the retainer and a cam track on the disk being laterally displaced on initial linear displacement of disk retainer with the disk retainer being connected to an actuator shaft with an improved sealing assembly for sealing the shaft at the top of the valve body.

Abstract: The invention features a self-contained, portable apparatus for performing precision grinding operations on metal disks of up to, e.g., 54 inches in diameter. The apparatus can be attached to the surface of the disk to be refinished and is leveled using special precision leveling adjusters. During operation, the adjusters are turned in precision increments to set the depth of cut. The grinder is then rotated on an arm about the center of the disk, by the use of a hydraulically driven speed reducer, rotor, bearing assembly. In a further aspect, the invention includes a dressing assembly for performing dressing-truing on a vitreous wheel when the wheel is in grinding position. The in position dressing assembly dresses a grinding wheel at up to 0.00125-inch increments.

Abstract: A linear actuated disk valve for a fluid conveyance system constructed with a valve body having an internal chamber and a passage through the valve body, the valve body having opposite ends with external connectors that continue the passage and that are connectable to other components in the fluid conveyance system, the improvements being a displaceable cam action closure member in the chamber of the valve body, the closure member having a disk retainer assembly with a disk retainer and at least a pair of circular closure disks engageable with the disk retainer formed by a cam on the retainer and a cam track on the disk being laterally displaced on initial linear displacement of disk retainer with the disk retainer being connected to an actuator shaft with an improved sealing assembly for sealing the shaft at the top of the valve body.

Abstract: A tool for simultaneously machining multiple surfaces on a stationary workpiece can include a rotary tool body having multiple cutter assemblies spaced circumferentially around the tool body. Different ones of the cutter assemblies can include differently angled cutting elements for machining different frusto-conical surfaces in the workpiece. At least some of the cutting elements can have two separate cutting edges.

Abstract: A device for grinding an end face at an edge of a workpiece bore of a workpiece has a driven grinding tool and a guide pin, connected to the grinding tool, for insertion into the workpiece. The guide pin is dimensioned so as to precisely match the workpiece bore. The guide pin has a central axis. The grinding tool has a grinding surface extending angularly to the central axis. The grinding tool is periodically displaceable transverse to the central axis.

Abstract: A valve lapping tool is comprised of a molded plastic and wood particulate composite having knurl pattern on the outside surface of the handle of the tool. Rubber suction cups are attached to the opposite ends of the tool for gripping and rotating a valve on a valve seat of an engine block.

Abstract: 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 variations in the conically-ground valve seat. The circular arc radius of the trough is greater than the radius of the ball.

Abstract: An automatic boring device is provided that comprises a tool housing having attached to it two opposing handles with switches mounted thereon for selective engagement of pneumatic controls that activate a clamping device, rotation of a chuck of a pneumatic drill, and downward movement of the drill. The pneumatic drill is removable and the depth of the downward boring stroke is adjustable.

Abstract: Disclosed is a suction operated valve resurfacing, or lapping, tool and an associated method for its use. In general terms, the tool of the present invention includes a handle portion and a suction generating means. A reciprocating assembly is adapted for travel within the interior of the handle and functions in expelling air out of and drawing air into the handle. Through the use of the suction generating means the tool can be positively secured to the upper surface of a valve. Thereafter, the entire tool can be rotated via the handle to facilitate the resurfacing of the valve seat.

Abstract: A lower side of a rotatable grindstone spindle is connected directly to a PZT (Piezoelectric element). By changing electric drive supplied to the PZT, reciprocating movement can be applied to the grindstone through the grindstone spindle in addition to rotational movement. As a result, the grinding locus of an abrasive grain of the grindstone on a taper surface of a workpiece becomes a sine wave, and therefore, the grinding locus can be shifted in a direction other than in a peripheral direction. In this way, the removed amount of the taper surface increases, and circularity of the taper surface can be made to equal to 0.3 .mu.m or less.

Abstract: The invention concerns an arrangement for machining a valve seat (1a) in a valve housing (1). The housing has a circular opening (1d) which is concentric with the seat (1a) and about which is a flat annular surface (1e). The arrangement comprises a support (2) arranged such that it is held by the valve housing (1) and such that, in an axial direction perpendicular to the plane of the annular surface (1e), it holds a tool pillar (3). At its distal end the tool pillar (3) has a machining tool (4). The support (2) comprises firstly a main part with three wings uniformly distributed about the tool pillar (3). Each wing comprises a first wing part (2b) which is operatively connected to the first wing part so that these wing parts (2a, 2b) can slide relative to each other along the sliding surface. Members (2b2, 2b3, 2b4, 2b5) are provided for detachably securing the wing parts (2a, 2b) relative to each other and the support (2) relative to the valve housing (1).

Abstract: A lapping device for lapping an injection molding cylinder seat is provided having a housing that supports a gear system. A drive shaft having a lapping disk secured to one end thereof is mounted for rotation within the housing offset from the central axis thereof. The drive shaft and thus the lapping disk is driven about the central axis by the gearing system.

Abstract: A valve refacing tool comprising a hollow cylindrical column. The column has an upper end and a lower end and has a central bore throughout its entire length. The column has exterior threads at its upper end and an outwardly flared cylindrical support at its lower end. A crown is provided and has a central vertical bore with internal threads removably received by the threads at the upper end of the column. The crown has a lower surface with a radial interior edge adapted to be supported on the upper end of the column. The crown has a plurality of radially extending fins each with an enlarged height at its radially exterior edge and an upper surface at an angle with respect to the vertical. Each upper surface has a dove tail recess. A cylindrical bushing sleeve is positioned within the bore of the column. The bushing sleeve has an upper end located at an intermediate extent of the column and a lower end located beneath the lower end of the column.

Abstract: The valve seat and guide machine comprises a base structure which supports a pantograph having a major arm and minor arm which moves slidably with respect to the major arm. A spherical head is supported by a number of sphere seats attached to the pantograph arm so that the spherical head can pivot around its centerpoint. A stepper motor provides small z-axis translation of the spindle which is contained in the spherical head and has a cutting bit and a pilot which extend from the bottom of the spherical head. A drive motor rotates a transmission linkage which is coupled to the spindle which rotates the cutting bit to cut the valve seat. Small x,y displacements are enabled by moving the entire spherical housing and its supporting sphere seats with respect to the support frame. The pantograph provides large z-axis displacement to remove the spindle from the cutting position and to provide clearance for movement to another machine site.

Abstract: A valve refacing tool comprising a hollow cylindrical column. The column has an upper end and a lower end and has a central bore throughout its entire length. The column has exterior threads at its upper end and an outwardly flared cylindrical support at its lower end. A crown is provided and has a central vertical bore with internal threads removably received by the threads at the upper end of the column. The crown has a lower surface with a radial interior edge adapted to be supported on the upper end of the column. The crown has a plurality of radially extending fins each with an enlarged height at its radially exterior edge and an upper surface at an angle with respect to the vertical. Each upper surface has a dove tail recess. A cylindrical bushing sleeve is positioned within the bore of the column. The bushing sleeve has an upper end located at an intermediate extent of the column and a lower end located beneath the lower end of the column.

Abstract: The valve seat and guide machine comprises a base structure on which is pivotally supported a pantograph having a major arm on which is mounted a drive motor and minor arm which moves slidably with respect to the major arm. Pivotally attached to each arm of the pantograph is a head portion with a support frame which retains a spherical head and a plurality of sphere seats for supporting the spherical head so that it can pivot around its centerpoint at the center of the sphere. A stepper motor is disposed at the top of the spherical head and a spindle disposed with the spherical head retains a cutting bit and a pilot which extend from the bottom of the spherical head. Small z-axis displacement and spindle feed/retraction along the z-(vertical) axis is provided by the stepper motor. The drive motor rotates a transmission linkage which, in turn, rotates the spindle using cone-shaped pinions to cause the cutting bit, typically carbide, to cut the valve seat.

Abstract: The valve seat and guide machine comprises a base structure on which is pivotally supported a pantograph having a major arm on which is mounted a drive motor and minor arm which moves slidably with respect to the major arm. Pivotally attached to each arm of the pantograph is a head portion with a support frame which retains a spherical head and a plurality of sphere seats for supporting the spherical head so that it can pivot around its centerpoint at the center of the sphere. A stepper motor is disposed at the top of the spherical head and a spindle disposed with the spherical head retains a cutting bit and a pilot which extend from the bottom of the spherical head. Small z-axis displacement and spindle feed/retraction along the z-(vertical) axis is provided by the stepper motor. The drive motor rotates a transmission linkage which, in turn, rotates the spindle using cone-shaped pinions to cause the cutting bit, typically carbide, to cut the valve seat.