U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 251/315.04 - Ceramic (e.g., glass or fired clay)


Subclass of Class 251 - Valves and valve actuation
Definition: Material which is hard, brittle, heat-and corrosion resistant,
No. of patents: 53
Last issue date: 01/29/2008


1    
NumberTitleIssue Date
7322559Plug valve having high flow resolution
The invention relates to a valve with high flow resolution within a flow range, which valve comprises a valve housing and a valve plug, whereby the valve plug comprises a cavity and a flow regulating slit which in cooperation with the valve housing forms a flow pass...
01/29/2008
7188477High temperature dynamic seal for scramjet variable geometry
A seal assembly for use in an engine, such as a scramjet engine, having a movable element, such as inlet cowl flap, is provided. The movable element has an outboard structural member which requires thermal protection. The seal assembly includes a sealing element and...
03/13/2007
6932104Field configurable shut-off valve
A kit of parts for configuring and assembling a shut-off valve in the field has a valve body, a plurality of connection fittings, and a plurality of gaskets. The connection fittings each have a first end with a common configuration adapted to fit into any of three p...
08/23/2005
6367774Element 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...
04/09/2002
6322050Method 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
6073648Metal element having a laminated coating
A laminated coating protects a metal substrate in a highly corrosive and highly erosive environment. A coating of a noble metal, such as gold, is bonded to the metal substrate, such as by electroplating or by flame spray. The noble-metal coating protects ...
06/13/2000
5707041Fluid control valve with fastener for ceramic valve plug
A fluid control valve for use in severe erosive fluid conditions which includes a ceramic plug seat. The ceramic plug seat is mounted to a metal valve element using a tapered mechanical bolt. The tapered portion of the mechanical bolt matches a cone-shape...
01/13/1998
5566923Fluid valves
A coupling for use in a rotary ball valve having a spherical ball with a passageway therethrough for controlling the flow of fluid through the valve. The coupling is particularly suited for use with non-metallic, for example, ceramic, spherical balls whic...
10/22/1996
5386967Ball valve coupling
A coupling for use in a rotary Ball valve having a spherical ball with a passageway therethrough controlling the flow of fluid through the valve. The coupling is particularly suited for use with non-metallic, for example, ceramic, spherical balls which ar...
02/07/1995
5353832Ball valve or cock
A ball cock for fluids carrying abrasive materials has its inlet passage terminating with a smaller cross section than the mouth of a ball passage which, in turn, has a smaller cross section than the mouth of the outlet passage aligned therewith. The cros...
10/11/1994
5205533Ball valve
A valve has a housing having an inlet connection and an outlet connection d formed with a valve seat having spaced inlet and outlet ports connected to the respective connections and a valve element formed with a throughgoing passage having an upstream end...
04/27/1993
5181691Mechanical part made of ceramics
A mechanical part has a contact surface for movement on a mating surface. The contact surface is first rough ground by using a grinding wheel of a grain size, for example, equal to or smaller than #200 and then barrel finished or buffed so as to have such...
01/26/1993
5181539Ball valve
In a ball valve wherein the rotation of a ball (1) provided in a valve chest (8) opens and closes a valve, an orifice (4) is provided in a passage (3) of the ball, and communicating passages (5) connecting the upstream side of the orifice (4) with the val...
01/26/1993
5104307Injection nozzle for use in an injection moulding device
Injection nozzle for use in a device for moulding an object of a thermoplastic material in an injection mould, comprising a nozzle with a feed channel (4) running through it which connects at the bottom end to a jet passage (7) and at this end has a ball-...
04/14/1992
5103862Valve and arrangement for fire suppression water sprinkle system
A valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports. The selective rotation of the valve member interrupts a flow of water through the v...
04/14/1992
5088687Ball valve seat for high temperature service
A ball valve seat for high temperature and/or abrasive fluids includes a disc-like spring portion formed as a part of the seat for maintaining a sealed relationship with the valve body and the ball and thus allowing for expansion and contraction of the va...
02/18/1992
5069240Flexible seating structure for rotary valves
A flexible seating apparatus is disclosed for use in rotary valves comprising a flexible seat ring attached to one of the valve body and valve closure member in a cantilevered fashion and maintained thereagainst by a resilient member, the latter being hel...
12/03/1991
5040566Ball mixing tap for cold and hot water
Mixing tap for hot and cold water fitted with a mixing ball with inlet holes matched with the separate hot and cold water feed pipes and outlet holes delivering the mixed water to a spout. At least the part of the ball with holes is made of a ceramic mate...
08/20/1991
5037065Ball valve
A sealing system in a ball valve is designed with a bellows which carries a sliding packing ring on the side of the valve housing and presses against a sliding packing ring on the side of the pivot shaft. The bellows is protected by a guard ring. The ball...
08/06/1991
5036883Valve and arrangement for fire suppression water sprinkler system
A valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports which are coplanar. The selective rotation of the valve member interrupts a flow of ...
08/06/1991
4995423Valve and arrangement for fire suppression water sprinkler system
A valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports which are provided at right angles to one another. The selective rotation of the val...
02/26/1991
4971109Valve and arrangement for fire suppression water sprinkler system
A valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports. The selective rotation of the valve member interrupts a flow of water through the v...
11/20/1990
4968000Valve
A valve with a valve body (11, 43) in the form of a ball or of a segment of a ball has a second, concave, spherical sealing surface (20, 53) which is provided to be resiliently urged against a first sealing surface of the valve body, and at least an outer...
11/06/1990
4936546Flow-setting valve
A flow-setting valve has a housing, a flow-guiding duct, a ceramic valve ball and a flow-regulating spindle. The flow-regulating spindle has a plurality of form-fitting elements fitting in complementary receptacles of the valve ball. At least the valve ba...
06/26/1990
4932432Shutoff and flow-control valve
A controlling valve, especially a valve ball, for a gaseous and liquid flow material, comprises a housing, two connector pipes, a flow-adjusting component and associated valve seat components. The flow-adjusting component and the valve seat components hav...
06/12/1990
4852610Valve and arrangement for fire suppression water sprinkler system
A valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports. The selective rotation of the valve member interrupts a flow of water through the v...
08/01/1989
4844410Adjustable seat assembly for a valve
There is provided a seat assembly adapted to be received in a spool bore of a valve having a fluid controlling member for controlling the flow of fluid through the valve, with the spool bore having a threaded interior portion. The seat assembly includes a...
07/04/1989
4815704Ball valve
The ball valve according to my invention comprises a pressure-tight housing ith at least one inlet-side and at least one outlet-side connecting pipe element, a valve ball made of sintered ceramic material, a valve seat and an operating shaft connected to t...
03/28/1989
4802652Tapered ball valve
A tapered plug valve having a body with a removable valve seat insert that can be replaced without removing the valve body from the operating site....
02/07/1989
4795133Ball valve with a ceramic valve ball and ceramic seat rings
The ball valve, especially for a solvent-containing flow and/or an abrasive solid mixture, has a housing, a sintered ceramic valve seat, a sintered ceramic valve ball and an operating shaft for the valve ball guided through a shaft seal in the housing. Th...
01/03/1989
4791953Regulator and shut-off valve for corrosive media
The regulator and shut off valve for a corrosive media, particularly for a wet chlorine-containing gas and a chloride ion containing fluid, comprises a pressure resistant housing and a shut-off member held between at least two seat rings. The housing has ...
12/20/1988
4771803Ball 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
4765592Material for valve seats
A material for valve seats is a composite material comprising a base material composed of PTFE and 3 to 30% by weight of PFA based on the total amount of the base material, and 5 to 30% by weight of glass fiber or 5 to 25% by weight of carbon fiber based ...
08/23/1988
4741361Valve and arrangement for fire supression water sprinkler system
A valve and an arrangement for testing and draining a fire suppression water sprinkler system includes a valve which has a valve member with first, second and third ports. The selective rotation of the valve member interrupts a flow of water through the v...
05/03/1988
4671308Fire-safe ball valve
An improved, soft-seated fire-safe ball valve is disclosed. The ball valve includes a body having a central passageway, a ball member positioned in the passageway, and a pair of radially inwardly extending shoulders in the passageway disposed circumferent...
06/09/1987
4650157Angle ball valve
A ball valve for controlling upstream to downstream fluid flow, for example, from an apertured tank bottom, has a housing body for bolted-on mounting. The housing has a flow passageway therethrough that angles between its upstream and downstream portions ...
03/17/1987
4606368Ball valve for pipeline
A ball valve assembly comprising: a body providing a socket and flow ports communicating therewith; and a core unit comprising a core assembly adapted to be releasably inserted into said socket, the core assembly having a through passage arranged to commu...
08/19/1986
4546790Fluid valve
The fluid valve comprises an integral housing made of forged steel, the housing having tubular end portions as fluid inlet and outlet, respectively, conical transition zones having a cone angle of at least 30°, and a central enlargement joined by said tr...
10/15/1985
4531273Method for fabricating graphite filled sintered metal seats for ball valves
A valve seat for ball valves comprises a ring-shaped or annular body fabricated of sintered metal particles having interparticulate spaces which are substantially completely filled with graphite. The seat is fabricated by pumping a dispersion of colloidal...
07/30/1985
4346730Valve for abrasive material
A ball valve assembly for controlling the flow of abrasive particulates including an enlarged section at the bore inlet and an enlarged section at the bore outlet. A refractory ceramic annular deflector is positioned in each of the enlarged sections, subs...
08/31/1982
1    
 
Sign InRegister
Username  
Password   
forgot password?