| Patent Number |
Title Of Patent |
Date Issued |
| D537919 |
Ball valve |
March 6, 2007 |
|
| D498820 |
Valve body |
November 23, 2004 |
|
| D495036 |
Valve body |
August 24, 2004 |
|
| D459787 |
Ball valve |
July 2, 2002 |
|
| D274087 |
Valve handwheel |
May 29, 1984 |
|
| D274085 |
Valve handwheel |
May 29, 1984 |
|
| D274084 |
Valve handwheel |
May 29, 1984 |
|
| 7368019 |
Method for preventing elution of lead and/or nickel from copper alloy piping material such as va |
May 6, 2008 |
| A technique is provided to precludes elution of the nickel by infallibly removing the nickel adhering to the inner surface of plumbing hardware, realize a treatment for efficient (treating temperature, treating duration, etc.) preclusion of both or either of lead and nickel and perfo |
| 7297215 |
Copper base alloy, and cast ingot and parts to be contacted with liquid |
November 20, 2007 |
| By exactly comprehending the true properties of the rare elements (such as Bi and Se) which are alternative components for Pb, the alloy is enabled to secure machinability equal to the bronze alloy (CAC406) generally used hitherto and acquire mechanical properties at least equal to the C |
| 7234682 |
Ball valve and method for production thereof |
June 26, 2007 |
| The invention provides a ball valve excelling in economy due to the efforts devoted to the reduction of cost, enjoying light weight and high reliability, manifesting high and uniform accuracy, and enabling manufacture of compact finished products having a small interface dimension, a |
| 7163192 |
Actuator for valve |
January 16, 2007 |
| An actuator for a valve serving to transfer turning power from a motor to an output shaft through an inner gearing planet gear speed reducing mechanism that is imposed in a casing and adapted to effect speed reduction of the turning power, and utilize rotation of the output shaft to |
| 7100493 |
Pneumatic actuator |
September 5, 2006 |
| A pneumatic actuator includes a cylinder, an output shaft disposed rotatably in the cylinder, a pinion disposed in the output shaft, a piston rod furnished with rack teeth to be meshed with the pinion, and pistons disposed one each at opposite ends of the piston rod, wherein the pneu |
| 7076961 |
Control system with communication function and facility control system |
July 18, 2006 |
| A control system with a communication function wherein: a central unit communicates 30 with a plurality of devices 11, 12, . . . , monitors and manages the operations of the devices; and each of the devices includes an input section for entering position data thereof. The central unit |
| 6974509 |
Brass |
December 13, 2005 |
| Brass consists essentially of Cu, Sn, Bi, Fe, Ni and P in weight ratios respectively of 58.0-63.2%, 0.3-2.0%, 0.7-2.5%, 0.05-0.3%, 0.10-0.50% and 0.05-0.15% plus the balance of Zn and unavoidable impurities to exhibit excellent tolerance for dezincification, hot forgeability and mach |
| 6916011 |
Ball valve and production method therefor |
July 12, 2005 |
| The invention provides a ball valve excelling in economy due to the efforts devoted to the reduction of cost, enjoying light weight and high reliability, manifesting high and uniform accuracy, and enabling manufacture of compact finished products having a small interface dimension, a |
| 6885119 |
Electric actuator and structure for fixing the same |
April 26, 2005 |
| In an electric actuator having inner component parts thereof inclusive of a motor 1 covered with a cover main body 10, the cover main body 10 having a coating (protection) function serves as a manually operating part and is equipped with a mechanism for switching between electrical and m |
| 6768234 |
Electric actuator and fixing structure of the actuator |
July 27, 2004 |
| In an electric actuator having inner component parts thereof inclusive of a motor 1 covered with a cover main body 10, the cover main body 10 having a coating (protection) function serves as a manually operating part and is equipped with a mechanism for switching between electrical and m |
| 6758458 |
Butterfly valve |
July 6, 2004 |
| Provided is a butterfly valve that prevents occurrence of erosion, thereby rendering it possible to secure fine adjustment of a volumetric flow rate of a fluid in an area of low degree of valve opening or in an area of minute degree of valve opening, to infallibly attain high range abili |
| 6736328 |
Control system with communication function and facility control system |
May 18, 2004 |
| A control system with a communication function wherein: a central unit communicates 30 with a plurality of devices 11, 12, . . . , monitors and manages the operations of the devices; and each of the devices includes an input section for entering position data thereof. The central unit |
| 6676109 |
Rotary valve |
January 13, 2004 |
| A rotary valve includes a main valve body that includes a body, a seat disposed in the body and a valve body disposed in the body so that the valve body is rotatable through the seat that are modulated as a common component part. A stem pierces the body and imparts opening and closing |
| 6623637 |
Hollow-fiber membrane module |
September 23, 2003 |
| This invention relates to a hollow fiber membrane module to be used in industrial fields such as the semiconductor industry, food processing industry, pharmaceutical industry, and medical industry, and to a method for the production thereof. Permselective hollow fiber membranes having |
| 6599378 |
Copper-based alloy, method for production of the alloy, and products using the alloy |
July 29, 2003 |
| A copper-based alloy includes one base phase selected from the group consisting of .alpha. phase, .alpha.+.beta. phase, and .alpha.+.beta.+.gamma. phase, a component having a lower melting point than the base phase, and a component for dispersing the base phase and the low melting co |
| 6557827 |
Leaf spring valve |
May 6, 2003 |
| The valve is enabled, by being endowed with the force of stored energy, to generate an opening/closing motion with a small operating torque infallibly and stably, permit a reduction in cost, allow a compact construction, excel in durability, and enjoy a highly satisfactory practical |
| 6395110 |
Copper-based alloy excelling in corrosion resistance, method for production thereof, and product |
May 28, 2002 |
| The present invention provides a copper-based alloy characterized by: having a composition of 58.0 to 63.0% by weight of Cu, 0.5 to 4.5% by weight of Pb, 0.05 to 0.25% by weight of P, 0.5 to 3.0% by weight of Sn, 0.05 to 0.30% by weight of Ni, and the balance of Zn and inevitable imp |
| 6267137 |
Ball check valve and pumping apparatus using the check valve |
July 31, 2001 |
| A ball check valve includes a body having a flow path and a turnout path formed therein and provided on a primary side thereof with an inlet and on a secondary side thereof with an outlet. A ball in the body a seating part for the ball, disposed in the inlet of the body and inclined towa |
| 6224765 |
Filter element |
May 1, 2001 |
| A filter element includes a bundle of hollow fiber type separation membranes made of a natural or synthetic macromolecular material and a sealed part made of a thermoplastic resin. The bundle has an opening in at least one terminal part thereof. The sealed part is bonded to the bundle |
| 6029693 |
Valve driving apparatus |
February 29, 2000 |
| A valve driving apparatus for actuating a shutoff valve or a dump valve provided in a pipeline for conveying a gaseous or liquid substance. The valve driving apparatus is constructed by disposing a gas/oil type booster and a hydraulic pump between a gas pipe which is branched from a prim |
| 5938173 |
Device for preventing gland nut in valve from loosening |
August 17, 1999 |
| A device for preventing a polygonal gland nut helically coupled with the stem of a valve from loosening includes a locking piece inserted non-rotatable on the stem. A pair of engaging claws are formed on the locking piece to engage with one of the lateral faces of the gland nut and a |
| 5797583 |
Valve driving apparatus |
August 25, 1998 |
| A valve driving apparatus for actuating a shut-off valve provided in a pipeline conveying a fluid includes a gas/oil booster having an oil chamber and a gas chamber. A valve-driving actuator has a cylinder connected to the oil chamber of the booster, and a pressure tank connected to |
| 5573253 |
Packing rings, method for production of the packing rings, and seal device using the packing rin |
November 12, 1996 |
| A packing ring of a composite structure including a packing of expanded graphite and an annular mass of superposed sheets of expanded graphite is produced by a method including the steps of spirally winding a ribbon of expanded graphite into a roll, compression molding the roll into the |
| 5522603 |
Packing rings, method for production of the packing rings, and seal device using the packing rin |
June 4, 1996 |
| A packing ring of a composite structure including a packing of expanded graphite and an annular mass of superposed sheets of expanded graphite is produced by a method including the steps of spirally winding a ribbon of expanded graphite into a roll, compression molding the roll into the |
| 5507885 |
Copper-based alloy |
April 16, 1996 |
| A copper-based alloy, viz. a dezincification-resistant brass, excels in various properties such as resistance to dezincification, hot forgeability and machinability and, therefore, tolerates use particularly in the atmosphere of a corrosive aqueous solution. The brass of one species has |
| 4846221 |
Ball valve with built-in check valve |
July 11, 1989 |
| A ball valve with a built-in check valve includes a valve casing having a passageway for a fluid, a ball having a through hole formed therein, also having a valve seat formed inside thereof at a position in the vicinity of one end of the through hole, and rotatably housed in the valve ca |
| 4801158 |
Pipe joint |
January 31, 1989 |
| A pipe joint includes a joint body having an internal thread portion formed in the interior thereof, a bush having formed on the outer periphery thereof an external thread portion helically meshed with the internal thread portion of the joint body, a gasket accommodated within the in |
| 4792117 |
Material for valve seats |
December 20, 1988 |
| A material for valve seats is molded of a composite resin. The composite resin is composed of polytetrafluoroethylene and a copolymer of tetrafluoroethylene and perfluoroalkylvinylether. The amount of the copolymer falls in the range of from 3% to 30% by weight, preferably in the ran |
| 4765592 |
Material for valve seats |
August 23, 1988 |
| 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 on the total amount of the compos |
| 4702150 |
Spring-return type actuator |
October 27, 1987 |
| A spring-return type actuator for valves including a piston cylinder mechanism, a movement conversion-transmission means disposed in the piston cylinder mechanism for converting reciprocation of a piston into a rotary motion of a valve drive shaft, a spring mechanism disposed in series |
| 4674528 |
Butterfly valve |
June 23, 1987 |
| A butterfly valve includes a body having pipe connecting parts forming two opposite ends thereof and a cylindrical flow path interconnecting the pipe connecting parts, a stem attached rotatably at the central part of the body diametrically across the cylindrical flow path, a lever handle |
| 4557286 |
Ball valve with emergency sealing device |
December 10, 1985 |
| A ball valve with an emergency sealing device has a ball having a through hole rotatably mounted within a valve body; ball seat retainers are positioned between the valve body and the ball; ball seats, made of a heat destructible material are mounted on the ball seat retainers and brough |
| 4457204 |
Explosive charge-containing nut |
July 3, 1984 |
| A T-joint having a two-part housing applicable to a pipe contains a member adapted to cut a hole in the pipe when acted upon by an explosive charge to provide a branch conduit from the pipe. The explosive charge is contained in a nut attachable to the housing and is ignited by a perc |
| 4417929 |
Special brass with dezincification corrosion resistance |
November 29, 1983 |
| Special brass with dezincification corrosion resistance, which is essentially composed of copper, zinc, antimony, lead and tin, thereby to remarkably improve the corrosion resistance and the mechanical properties. With at least one addition of iron, aluminium and silicon, the corrosion |
