Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7896312 | Ball valve with removable means for retaining the axial seal A ball valve comprising: a valve body with a seat for housing a ball provided with a coaxial through-opening and able to be rotationally operated from a closed valve position into an open valve position and vice versa; ... | 03/01/2011 |
| 7850143 | Ball valve assembly A ball valve assembly for controlling flow of a mixture. The ball valve assembly includes a body with a cavity therein and a ball positioned in the cavity with a passage therethrough, and a low-pressure valve seat and a high-pressure valve seat for locating the ball... | 12/14/2010 |
| 7267323 | Ball valve with cartridge A ball valve has a valve body having a chamber, aligned inlet and outlet passages providing flow therethrough, and an access passage communicating with the chamber. A replaceable cartridge assembly is seated in the chamber and includes a generally spherical ball hav... | 09/11/2007 |
| 7178786 | Stem construction for rotatable valve body A valve stem construction for a manipulable valve member used to control fluid flow through a valve. The valve stem extends externally of the valve housing for engagement by a valve handle used to manipulate the valve member between open and closed positions. The va... | 02/20/2007 |
| 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 |
| 6948699 | Retainer for a ball valve seat A ball valve comprises: a valve body; a pair of valve end caps; a valve ball rotatably positioned within the valve body; a pair of valve seats, each valve seat being positioned between the valve ball and a respective valve end cap and engaged therewith; and at least... | 09/27/2005 |
| 6854710 | Valve assembly A valve assembly including a valve body having an elongated passage through which product flows and a valve element which rotates about an axis extending generally normal to an axis defined by the passage in the valve body is disclosed. The valve element is mounted ... | 02/15/2005 |
| 6722633 | Throttle body with insert-molded member In a throttle body, a cylindrical body member is made of resin, and a core is made of a material different from the body member and insert molded in the body member. A notch is provided on an outer surface of the body in a peripheral direction, in a proximity of the... | 04/20/2004 |
| 6655659 | One-piece sanitary seat ring A sanitary eccentric seat ring and corresponding method of installation and adjustment is provided. The seat ring includes a body having a first section, a second section, and a body central axis passing through the first and second sections. A first bore... | 12/02/2003 |
| 6554249 | Plug valve having seal segments with booster springs The invention is directed to a plug valve comprising a body which includes an inlet port, an outlet port and a cavity that is connected between the inlet and outlet ports; first and second seal segments which are mounted in the cavity and which each compr... | 04/29/2003 |
| 6315267 | Electrically controlled servo operated engine coolant valve An engine coolant valve has a valve body with rotatable valve member thereon with a cylindrical configuration cross ported for rotary sealing against an arcuately shaped elastomeric face seal. A torque motor is attached to the valve body and has the motor... | 11/13/2001 |
| 6116575 | Seat structure for ball valve A seat structure for a ball valve which includes a seat member formed by rolling up an alternate stack of a thin steel plate and a thin graphite plate. The seat member is provided with a fixture portion fixed into an inner periphery of the valve body and ... | 09/12/2000 |
| 5941266 | Angle entry rotary valve Straight line flow rotary valves with the valve member flow passage (21) turned away from the pipeline flow axis (22), to dispose the valve internals to an access port (50) located downstream on the same flow axis of the valve member (11). Another embodim... | 08/24/1999 |
| 5806563 | Dual ball valve assembly A dual ball valve assembly which includes a one piece tubular valve housing having box connections at each of a first end a second end. A first ball valve is positioned between a first valve seat and a second valve seat at one end. A second ball valve is ... | 09/15/1998 |
| 5799928 | Ball valve with improved valve seat and bonnet assembly A ball valve for controlling fluid flow comprises a housing with a chamber therein and a fluid flow passage therethrough having an inlet and outlet portion to and from the chamber adjacent the lower end of the housing, and generally annular recesses exten... | 09/01/1998 |
| 5676348 | Asymmetric seal segment configuration A valve comprising a body having an interior cavity, an inlet port and an outlet port; an upstream seat and a downstream seat positioned within the cavity, each seat including a bore in alignment with the inlet and outlet ports to define a flow passage th... | 10/14/1997 |
| 5642754 | Method of securing a valve seat member within a tubular housing and a ball valve assembly A method of securing a valve seat member for a ball valve within a tubular housing. Firstly, provide an annular valve seat member and a tubular valve housing. The annular valve seat member has a first face, a second face, an interior surface and an exteri... | 07/01/1997 |
| 5562116 | Angle entry rotary valve Straight line flow rotary valves with the valve member flow passage (21) turned away from the pipeline flow axis (22), to dispose the valve internals to an access port (50) located downstream on the same flow axis of the valve member (11 ). Another embodi... | 10/08/1996 |
| 5531244 | Hemispherical ball valve A ball valve for controlling fluid flow comprises a housing with a chamber therein and a fluid flow passage therethrough having an inlet and outlet portion to and from the chamber adjacent the lower end of the housing. An opening in the upper end of the h... | 07/02/1996 |
| 5427354 | Valve assembly A valve comprising a valve body having a through opening that forms a fluid passage and having a wall surrounding a portion of the fluid passage, the wall defining a radially inwardly facing surface, the valve further including a valve element rotatably m... | 06/27/1995 |
| 5377954 | Valve with seal ring having edge-welded laminations Disclosed is a disc valve with a laminated seal ring secured to the housing which forms a leakproof seal with a seating surface on the valve disc. The seal ring is made of two or more metal laminates, the outer peripheral edges of which are cold welded to... | 01/03/1995 |
| 5313976 | Top entry ball valve and method of assembly A top entry floating ball valve (10) and method of assembly including a downstream metal seat (62) mounted within an annular recess about a downstream flow passage (22) and an upstream metal seat (80) urged by a Belleville spring (78) into engagement with... | 05/24/1994 |
| 5305986 | Fluid control valve A fluid control valve, which allows selective change of the flow rate of fluid through the valve in the face of high temperatures and high pressures without undue wear to the integral downstream sealing seat, includes a body, having a passageway which con... | 04/26/1994 |
| 5263685 | Valve seat A valve seat arrangement sealing against a valve core in a valve, particularly for a ball valve, having an inner ring with a first deflectable sealing lip and an outer ring with a second deflectable sealing lip. The first deflectable lip is arranged to pr... | 11/23/1993 |
| 5224829 | Rotatable valve having upper and lower parts A valve apparatus, in particular a rotatable valve comprising an upper part (10) and a lower part (6) which are demountably attached to each other. The valve's lower part (6) is mainly U-formed with sealing surfaces (17,18) arranged on the outwardly facin... | 07/06/1993 |
| 5129417 | Valve including a closing device and sealed connectors This invention relates to a valve comprising a valve body and a dismountable closing means. The closing means comprises a closing member and a support which carries the closing member is received in an inner cavity in the valve body. Locking of the closin... | 07/14/1992 |
| 5117858 | Top entry ball valves with cam adjustable seats A top entry ball valve comprises a housing having an interior cavity sufficiently large to receive a conventional ball and conventional seat rings through an opening in the housing. After the ball/seat package has been inserted into the cavity, a cam arra... | 06/02/1992 |
| 5115833 | Ground hydrant with ninety-degree water flow turn-off ball valve below frost line A ground hydrant includes an elongated hollow water flow pipe positioned from above the ground to below the frost line in the ground, a flow control valve, and a housing which mounts the flow control valve at a position below the frost line in the ground.... | 05/26/1992 |
| 5052657 | Ball valve A kelly valve includes a ball valve structure (10) having a ball valve member (40) with a central bore (42) therethrough mounted within a valve chamber (38) for rotation between open and closed positions. A fluid pressure equalizing opening or port (60) i... | 10/01/1991 |
| 4953587 | Ball valves for pipelines A ball valve is provided in which an outer housing (1) can be left in a pipeline during servicing and a sub-assembly can be removed as a unit from the top of the outer housing (1). The sub-assembly comprises an inner housing (8) in which a ball member 17 ... | 09/04/1990 |
| 4936548 | Rotary gate valve arrangement The invention relates to a rotary gate valve arrangement with a gate valve housing, a rotatably mounted gate valve rotor arranged therein at right angles to the material flow direction and having a part-cylindrical sliding part which co-operates with a se... | 06/26/1990 |
| 4911413 | Structure for fitting a valve seat support ring in a valve port In a valve in which a valve port is opened and closed by a spherical valve disc, a valve seat is pressed and supported by a support ring. A snap ring which engages with an annular groove around the support ring is inserted together with the support ring i... | 03/27/1990 |
| 4881718 | Ball control valve A ball valve with a port (30) through the ball (26) has a groove associated with each end of the port with each groove (32,34) extending partially around the circumference of the ball. Each groove connects with its end of the port (30) and extends away fr... | 11/21/1989 |
| 4848724 | Ball valve with handle locking mechanism A ball valve of the type comprising a body including a valve chamber having inlet and outlet ports, and a rotatable ball element disposed within the valve chamber, the ball defining a conduit communicating with the inlet and outlet ports. The ball is actu... | 07/18/1989 |
| 4813649 | Ball valve A ball valve is provided which comprises a valve body formed from a tubular member with a cylindrical hole extending therethrough, a stem having one end thereof projecting into the hole, and a ball fixed to an end of the stem. The ball has a circular bore... | 03/21/1989 |
| 4813650 | Valve seat retainer A valve body with a tapered annular recess for receiving a correspondingly tapered valve seat retainer forms a valve assembly wherein the retainer may be easily removed for maintenance purposes by field service personnel without special tools. The retaine... | 03/21/1989 |
| 4809949 | Plug valve Plug-type angle valve comprising a valve body and a unitary valve plug formed of a plastic material. The valve body has upper and lower trunnion seats and at least two fluid ports, one being a control port located at a position intermediate the trunnion s... | 03/07/1989 |
| 4771803 | Ball cock with sinter ceramic valve seat and valve ball A ball cock having sinter ceramic valve ball and seat rings, also has wear-resistant bushings between the pipe connectors joined to the ends of the housing sleeve and the seat rings. Compressible seals bearing upon the bushings and clamped between the bus... | 09/20/1988 |
| 4718444 | Valve seat retraction method and apparatus Selective retraction of a spring-biased valve seat from slidable sealing engagement with a ball valve member is effected by a threaded retraction tool inserted through a threaded retraction port normally sealed by a removable sealing screw and gasket. The... | 01/12/1988 |
| 4708158 | Ball-type stop cocks having standard matching flanges This invention relates to a flange-type stop cock having a ball valve plug. This ball-valve stop cock is so constructed as to have the same profile or outline as the flange portion of the existing flange-type stop cock having a conical-shaped valve plug. ... | 11/24/1987 |
