Class 137/329.01 - Valve heads and/or seats

Subclass of Class 137 - Fluid handling
Definition: Devices relating to valve heads and/or seats.
No. of patents: 19
Last issue date: 06/05/2007

Number	Title	Issue Date
7225830	Fluid control valve A fluid control valve having a spring biased shuttle plunger member which opens or closes fluid flow through a plurality of radially spaced apart fluid passageways disposed between an upstream chamber and downstream chamber in the valve body responsive to a fluid pr...	06/05/2007
6880804	Valve sealing means A retrofit valve for primarily for use in conventional domestic, agricultural and commercial water taps. The valve has a seat (10) located in a passageway between a water inlet (11) and a water outlet (12). A spherical sealing member (13)...	04/19/2005
6668857	Flow reversal control valve A flow reversal control valve for use in a fuel cell. The valve includes a housing having a first end and a second end disposed along a longitudinal axis. The valve also includes a wall that defines a first passage in fluid communication with a second pas...	12/30/2003
6595235	Two-way orifice seat There are provided a fluid flow control valve and an orifice for a fluid flow control valve. The orifice defines two seats against which a diaphragm of the valve can be urged. Each seat defines a particular contour, including one or more channels, slots, ...	07/22/2003
5725007	Valve mechanism and method for making same A diaphragm valve including a main valve body and a ring member welded to the main valve body, and a flexible diaphragm having an outer periphery welded to the ring member. The weldment between the main valve body, the ring member, and the diaphragm, prov...	03/10/1998
5649567	Sealing arrangement, for use with, and in combination with, a steam and fuel oil control and furge valve, and a valve seat therefor A circular body, having a throughgoing orifice, an externally threaded periphery, and a pair of stepped recesses, defines a valve seat for a reciprocating piston. A retaining ring is made fast in one of the recesses, and a seal which contracts upon coolin...	07/22/1997
5080137	Vortex flow regulators for storm sewer catch basins A vortex flow regulator used in sewer catch basins to prevent overflow of the system from storm water runoff and to standardize the production of regulators. The hollow body of these flow regulators within a given range of regulators by the present constr...	01/14/1992
4830281	Spray tip with seal ejector There is disclosed a spray tip useful for high pressure, airless spraying which has an orifice tip holder that is reversible between spraying and cleaning positions and that is interchangeable with other holders supporting orifice tips of varied diameters...	05/16/1989
4781325	Thermostatic valve with trap repair cartridge A thermostatic valve such as a steam trap, incorporates a cup shaped trap repair cartridge having the lower end of an annular intermediate valve body of cast metal threaded into an upwardly open, internally threaded cup shaped valve casing. The trap repai...	11/01/1988
4626194	Flow regulating device Means for supplying liquid or gaseous fuel to a burner includes a flow regulating device having three coaxial diaphragms, between each adjacent pair of which there is defined a chamber, these chambers being connected with respective sensing stations in an...	12/02/1986
4516753	Faucet device with replaceable valve cartridge An improved faucet device with a swivel spout and an inline valve cartridge, comprising a valve body consisting of two substantially identical molded plastic parts and including a molded plastic sleeve valve member and a pair of combination valve seat and...	05/14/1985
4469122	Modular check valve A fluid check valve having a cylindrical tubular body member which is symmetrical and is adapted to receive a pair of opposed head members which have suitable coupling ends formed thereon. The head members may be threaded on to the body or secured to the ...	09/04/1984
4395019	Seal for wear resistant inserts In a pressure let-down valve comprising a fixed choke and a variable choke means, a silver solder joint between the wear-resistant insert and the retaining ring is replaced by a mechanical joint. The mechanical joint is comprised of a split-locking ring, ...	07/26/1983
4388940	Pressure relief device A safety pressure relief device for a refrigerated liquified gas storage vessel having a large diameter valve seat mounted on the vessel, a valve closure movably mounted to engage the valve seat to close flow therethrough and to move away from the valve s...	06/21/1983
4355784	Method and apparatus for controlling back pressure A back pressure control choke operates to automatically control and maintain a desired back pressure on the fluid passing through the choke. The choke housing has an inlet channel which intersects with an axial bore, part of which bore constitutes the dis...	10/26/1982
4295485	Diaphragm valve A diaphragm valve has a body defining a fluid passageway and, in the wall of the body, an opening in communication with the fluid passageway. A diaphragm for controlling fluid flow through the passageway extends across the opening and its periphery is cla...	10/20/1981
4201366	Bellows valve A bellows valve construction which facilitates valve use at elevated temperatures and pressures. The valve includes a valve body having a passageway extending thereinto for defining a valve chamber with a valve seat disposed along this passageway and a fl...	05/06/1980
4140149	Plug cock Plug cock equipped with a rotating plug, which comprises a cylindrical body pivoting about an axis perpendicular to the axis of the cylinder and through which passes a conduit for the passage of fluid, which body comprises, at least one of its two axial e...	02/20/1979
3930636	Ball valves A ball valve having a seating ring held in a recess in the valve bore by threaded portions of the ring and bore such that, when the ring is in position, the threaded portion on it has passed right through the threaded portion of the bore, there being a ra...	01/06/1976

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Class 137/329.01 - Valve heads and/or seats