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| Number | Title | Issue Date |
| 7287541 | Method, apparatus and system for controlling fluid flow A system, apparatus and method of controlling the flow of a fluid are provided. In accordance with one embodiment of the present invention, a flow control device includes a valve having a flow path defined therethrough and a valve seat in communication with the flow... | 10/30/2007 |
| 7007922 | Rotating regulating device The invention relates to a rotating regulating device, especially for a valve comprising a pivotable or rotatable valve body. Said device comprises at least one actuating device for rotating a regulating element which can be connected to the valve body in a moveable... | 03/07/2006 |
| 6978979 | Isolating device Isolating device, in particular for an injection valve with a turning spindle, rotatably mounted in a device housing, actively connected to a drive device, for the variable displacement of an operating element for an isolation stop valve, connected to the turning sp... | 12/27/2005 |
| 6921322 | Apparatus and methods for refinishing a surface in-situ 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 prec... | 07/26/2005 |
| 6446660 | Valve assembly with multiple mode actuators A multiple mode valve assembly including valve actuators equipped with a combination of a shaft (4) and a spindle (5), coaxial and immobilized in an axial direction, but capable of rotating freely one with respect to the other, so that by means of the spi... | 09/10/2002 |
| 6273121 | Valve seat self cleaning device for alumina production plants This valve is applicable in conduction of bauxite in pipes and is meant to allow the self-cleaning of the valve with the aid of a locking cap which connects the drive crown and the valve shaft, causing the rotation of said crown to be transmitted to the v... | 08/14/2001 |
| 6119716 | Valve A valve comprising a valve housing (10), having a valve seat (18) therein, a valve member (16) moveable via a valve spindle (15) between positions spaced from and seated on the valve seat. The valve member is required to lap a plurality of times on the va... | 09/19/2000 |
| 5992446 | Stopper system for vessel orifice The combination of a vessel and a stopper assembly. The vessel has a wall defining a storage space for a supply of a flowable material and an orifice on the wall communicating through the body from the storage space to externally of the storage space. The... | 11/30/1999 |
| 4465091 | Improved self-grinding valve An improved, motorized Lunkenheimer valve is provided having two independently actuated drive means for operating the valve, one of which moves the valve stem and disc longitudinally along the axis of the stem and the other of which rotates the stem and d... | 08/14/1984 |
| 4460009 | Valve stem actuator A valve stem actuator for a slurry valve or the like includes a support frame extending from the valve body to a linear operator having a cylinder and piston. Means are provided for connecting the piston rod to the valve stem and means reciprocally mounte... | 07/17/1984 |
| 4346728 | Automated dual mode valve actuator A dual mode valve actuator for automatically controlling the operation of a valve comprises a first reversible drive motor and a first planetary drive assembly which operate to move the valve stem axially during a first mode of operation. The actuator fur... | 08/31/1982 |
