Patents Represented by Attorney Paul A. Guss

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  • Electric actuator
    Patent number: 6880417
    Abstract: The rotary motion of a ball screw shaft is converted into the rectilinear motion by a ball spline nut provided integrally with displacement members by the aid of an attachment section. Involute splines are engraved on outer circumferential surfaces of spline pistons connected to the displacement members. The spline pistons are slidably meshed with a splined bore of the involute splines formed on an inner wall surface of a frame. The attachment section is displaceable in a longitudinal direction of the frame by the aid of the splined bore and the spline pistons.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: April 19, 2005
    Assignee: SMC Kabushiki Kaisha
    Inventors: Shigekazu Nagai, Masaki Miyahara, Yoshiyuki Yamasaki
  • Vacuum regulating valve
    Patent number: 6877715
    Abstract: A chamber port to which a vacuum chamber is connected and a pump port to which a vacuum pump is connected are formed on a valve body of a vacuum regulating valve. A valve plug includes a plate and a nose which is connected to the plate by screw members, and closes the chamber port by a pressure fluid. The maximum outer diameter of the nose is smaller than the inner circumferential diameter of the chamber port. The nose is detached through the chamber port.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: April 12, 2005
    Assignee: SMC Kabushiki Kaisha
    Inventor: Masao Kajitani
  • Plug valve
    Patent number: 6874759
    Abstract: A main valve body has a first passage, a second passage, and an opening which intersects the first passage and the second passage. A main plug body is rotatably inserted into the opening, and has an upper section into which a handle is inserted, and a lower section having a through-hole. An O-ring is seated on an annular groove which is provided in the vicinity of the through-hole. A seal-retaining member for preventing the O-ring from projecting is fitted to an expanded diameter section of the first passage. One end of the seal-retaining member tightly contacts an end surface of the expanded diameter section. A curved surface corresponding to an inner circumferential surface of the opening is formed at the other end of the seal-retaining member.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: April 5, 2005
    Assignee: SMC Kabushiki Kaisha
    Inventors: Hiroaki Aoshima, Takashi Tozaki
  • Valve for discharging fluid from a tank
    Patent number: 6869062
    Abstract: A valve has a cylindrical body made of a metal material, a screw section formed on a first attachment hole in the body, a first seal member provided on an upper surface of the body, a third seal member attached to an upper surface of the first attachment hole, a valve plug arranged in a second attachment hole for being seated on a valve seat, a flange section curved outwardly from an outer circumferential surface of the body, and a spring interposed between the valve plug and a spring-receiving member provided in the second attachment hole.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: March 22, 2005
    Assignee: Anzai Medical Kabushiki Kaisha
    Inventor: Kenzo Eguchi
  • Magnetic sensor, side-opened TEM cell, and apparatus using such magnetic sensor and side-opened TEM cell
    Patent number: 6856131
    Abstract: A magnetic sensor has a monotonic response to high-frequency magnetic strengths in a frequency range up to superhigh frequencies. The magnetic sensor includes a shielded loop coil having a triplate stripline structure. The shielded loop coil has one-turn looped ground patterns formed respectively in a first layer and a fifth layer and connected parallel to each other by a via, and has an inductance L. The one-turn looped ground patterns have end electrodes facing each other across gaps, one of the end electrodes including the via, providing a combined capacitor operable at high frequencies and having a capacitance C. The product L×C of the inductance L and the capacitance C is 2.5×10?20 or less and the maximum outer circumference length of the one-turn looped ground lines is 50 [mm] or less.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: February 15, 2005
    Assignee: Ryowa Electronics Co., Ltd.
    Inventors: Yasunori Miyazawa, Katsuji Kaminishi, Masahiro Yamaguchi, Kenichi Arai
  • Actuator
    Patent number: 6848327
    Abstract: An actuator comprises a feed screw shaft mechanism including a ball screw shaft and a ball screw nut, and a slider having an opening for receiving the ball screw shaft and the ball screw nut therein. The feed screw shaft mechanism is assembled into a single unit which is detachably installed to a frame by the aid of the opening of the slider.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: February 1, 2005
    Assignee: SMC Kabushiki Kaisha
    Inventors: Shigekazu Nagai, Akio Saitoh, Masaru Saitoh
  • Tube joint
    Patent number: 6843507
    Abstract: A tube joint includes a body into which a fluid tube is inserted, a chuck which is arranged in the body and which engages with an outer circumferential surface of the fluid tube to retain the fluid tube, fastening pawls which are disposed on an inner circumference of the chuck facing the fluid tube and which protrude while being inclined by predetermined angles, curved sections which are depressed by predetermined lengths in a direction in which the fluid tube is pulled, recesses which are formed in the curved sections, and a release bush which releases the fluid tube.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 18, 2005
    Assignee: SMC Kabushiki Kaisha
    Inventor: Masaaki Muto
  • Linear actuator
    Patent number: 6832541
    Abstract: A linear actuator comprises a piston which is provided in an actuator body and which is displaceable under a pressure fluid, a slide table which is integrally connected to the piston and which is linearly displaceable, a rod which is engaged with the slide table and which has a shaft section inserted into an engagement hole of the piston, end blocks which are connected to ends of the actuator body, and stoppers which are provided on end surfaces of the end blocks and which adjust a displacement amount of the slide table.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: December 21, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventors: Toshio Satou, Yoshiteru Ueno, Yoshihiro Toshimori, Akira Tadano
  • Manifold-connecting mechanism
    Patent number: 6832788
    Abstract: Engaging holes are disposed on both sides of an upper surface of a body of a manifold and are spaced from an axis of the body by a predetermined distance. A solenoid-operated valve is installed to the manifold. Shaft sections of a U-shaped connecting pin are inserted into the engaging hole of the body and another engaging hole of an adjacent manifold respectively. A connecting plate is installed to connect engaging projections which are formed at a second end of the body and a second end of the adjacent manifold.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: December 21, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Masami Yoshida, Noriya Sasaki
  • Mixing valve with agitation chamber and helical fluid supply passages
    Patent number: 6830368
    Abstract: A mixing valve comprises a valve body and a plurality of helical members. An agitation chamber is formed in the valve body. The plurality of helical members are disposed substantially in parallel in the valve body and have a number corresponding to a number of fluid supply ports. The plurality of helical members have helical passages on their outer circumferential surfaces and have ends facing the agitation chamber. Fluids are supplied from the fluid supply ports and pass through the helical passages.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: December 14, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventor: Yoshihiro Fukano
  • Electric actuator and method of controlling the same
    Patent number: 6828747
    Abstract: The stop positions of start and end points for a slider are set by positionally adjusting a stopper and/or a stopper. The distance that the slider has traveled is learned according to a command from a control console in response to a manipulation of a learning manipulation element, and at least one of a speed and an acceleration is set by a speed regulator and an acceleration regulator. The control console outputs a drive signal to a motor based on at least one of the set speed in constant-speed movement of the slider and the set acceleration of accelerated movement of the slider and the learned distance that the slider has traveled, thereby moving the slider. For moving the slider to the start point or the end point, the control console controls the slider to move at a speed lower than the speed in constant-speed movement, and positions the slider at the start point or the end point.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: December 7, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventors: Katsuhisa Endo, Takashi Fujita, Kazuhiro Iida
  • Sensor attachment structure for attaching a flexible sensor by sticking to an actuator body
    Patent number: 6828782
    Abstract: A sensor attachment structure is provided with grooves for attaching, to an actuator body, magnetism-detecting sensors each of which is constructed to have a substantially rectangular cross section. The groove is designed to have a substantially rectangular open cross section. The groove includes a tapered section which has widths gradually narrowed inwardly from the contour surface, and a spread section which is spread from narrow width ends of the tapered section and to which pawls of the magnetism-detecting sensor are installed.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: December 7, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventors: Shigekazu Nagai, Masaki Miyahara
  • Gamma camera apparatus
    Patent number: 6822237
    Abstract: After the position of a collimator with respect to a gamma camera depending on the position of a detection plane in an examinee, gamma rays radiated from the examinee are detected by a scintillation detector via a collimator and a scintillator, and a signal from the scintillation detector is processed by a signal processing circuit and then transferred to an image reconstructing unit, which reconstructs a three-dimensional image of the radiation source in the examinee and displays the three-dimensional image on a display unit.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: November 23, 2004
    Assignee: Anzai Medical Kabushiki Kaisha
    Inventors: Tomio Inoue, Tadashi Ito, Masao Jimbo, Kenzo Eguchi, Katsuroh Ohwadano
  • Fluid pressure regulator
    Patent number: 6779541
    Abstract: A fluid pressure regulator has a program controller, a PID controller, a second PID controller, a drive controller, a solenoid-operated valve for supplying a fluid, a solenoid-operated valve for discharging a fluid, a diaphragm, a main valve, and a pressure sensor. Based on a desired preset value and/or a desired control program inputted from an external source, the fluid pressure regulator regulates the pressure or flow rate of the fluid discharged from a discharge port of the main valve. A detecting mechanism is combined with a controlled object for supplying a controlled variable in the controlled object to the second PID controller through a feedback loop.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: August 24, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventors: Naoto Inayama, Masao Kajitani
  • Tube joint
    Patent number: 6764102
    Abstract: A tube joint comprises a joint body which is provided with an attachment/detachment mechanism for attaching/detaching a fluid tube and which is formed of a resin material, and a bellows section which has annular projections and annular recesses alternately formed to be continuous in an axial direction and which disperses external force (impact force) applied to an outer surface of the joint body to avoid any concentration of stress.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: July 20, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventor: Takumi Ezura
  • Flow rate control valve
    Patent number: 6764060
    Abstract: A flow rate control valve includes a rotary driving source driven by an electric signal, a first movable member screwed axially displaceably in a screw hole by a rotary action of the rotary driving source, a second movable member displaced together with the first movable member, a diaphragm connected to the second movable member, a valve seat on which the diaphragm is seated, and a first fluid port and a second fluid port to which a pressure fluid is supplied or from which the pressure fluid is discharged.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: July 20, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Kousaku Inamoto
  • Suck back valve
    Patent number: 6755354
    Abstract: A suck back valve has a volume-varying mechanism including a cylindrical flexible member which has a flow chamber formed therein for communicating with a fluid passage having a first port and a fluid passage having a second port, a fixing member which fixes a part of the outer circumferential surface of the cylindrical flexible member to a joint section, and a hook member which increases the volume of the flow chamber by expanding and deforming the outer circumferential surface of the cylindrical flexible member.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: June 29, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • Solenoid-operated valve
    Patent number: 6752375
    Abstract: A solenoid-operated valve includes a bonnet, a cap member which is disposed in the bonnet, a fixed iron core which is connected to a central portion of the cap member, a movable iron core which is provided under the fixed iron core, which is displaceable under the exciting action of a coil, and which has an inclined surface having gradually contracted diameters, an annular sleeve which is disposed to surround an outer circumferential surface of the movable iron core, and a spring member which is interposed between an annular projection of the movable iron core and an annular groove of the sleeve.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: June 22, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventor: Yoshihiro Fukano
  • Brine temperature control apparatus using a three-way proportional valve
    Patent number: 6749016
    Abstract: In a brine temperature control apparatus, the temperature of brine in a tank disposed in a brine fluid circulating passage is controlled using a three-way proportional valve. The three-way proportional valve does not open and close in an abrupt ON/OFF fashion, but rather the degree of opening thereof for supplying chilled brine to the tank is gradually adjusted in proportion to a detection signal indicative of the brine temperature in the tank. Thus, a water hammer problem is avoided, and the coolant circulating circuit including such a three-way proportional valve can be used effectively even with large capacity chiller units.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: June 15, 2004
    Assignee: SMC Kabushiki Kaisha
    Inventor: Toru Ozawa
  • Waste incineration disposal method
    Patent number: 6746497
    Abstract: A waste is dry-distilled in a gasification furnace and generated combustible gas is combusted in a combustion furnace. A temperature in the combustion furnace is set to be substantially constant at a first preset temperature or more. When the temperature in the combustion furnace is greater than the first preset temperature by combustion of other fuels, the combustible gas is introduced. When the temperature in the combustion furnace reaches a second preset temperature or more by the combustion of only the combustible gas, the combustion of the other fuels is finished. When the temperature in the combustion furnace falls below a third preset temperature the combustion of the other fuels is resumed. When the temperature in the gasification furnace falls below a fourth preset temperature, the combustion of the other fuels is finished.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: June 8, 2004
    Assignee: Kinsei Sangyo Co., Ltd.
    Inventor: Masamoto Kaneko