Patents Assigned to SMC Corporation
  • Patent number: 11661959
    Abstract: A pressure booster includes a pressure boosting unit and a bypass unit. The pressure boosting unit includes an input port connected to the side of a fluid supply source and an output port connected to the side of a tank. The pressure boosting unit boosts the pressure of a pressurized fluid supplied to the input port and outputs the pressure-boosted pressurized fluid from the output port. The bypass unit includes a bypass flow path having one end connected to the fluid supply source side and the other end connected to the output port side. The bypass flow path is provided with a bypass check valve configured to block the flow of the pressurized fluid from the output port side to the fluid supply source side.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: May 30, 2023
    Assignee: SMC CORPORATION
    Inventors: Youji Takakuwa, Kengo Monden
  • Patent number: 11661960
    Abstract: A pressure-booster output stabilizer includes: a first cylinder having therein a first chamber and a second chamber separated by a first piston; a second cylinder having therein a third chamber and a fourth chamber separated by a second piston; and a piston rod configured to couple the first piston and the second piston. The primary pressure of a pressure booster is supplied to the first chamber, the secondary pressure of the pressure booster is supplied to the fourth chamber, and the pressurized fluid is taken out from the fourth chamber.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: May 30, 2023
    Assignee: SMC CORPORATION
    Inventors: Youji Takakuwa, Kazufumi Waki
  • Publication number: 20230150123
    Abstract: A fulcrum opening/closing type air chuck includes porous bodies that are attached to a body and come into contact with fingers, and purge air passes through the porous bodies and is discharged to the outside.
    Type: Application
    Filed: October 24, 2022
    Publication date: May 18, 2023
    Applicant: SMC CORPORATION
    Inventor: Ryosuke OKUSHIMA
  • Publication number: 20230139315
    Abstract: A first opening and closing mechanism, which includes a first cam groove and a first cam roller and which causes a valve assembly to reciprocate between an intermediate position and a first closed position, and a second opening and closing mechanism, which includes a second cam groove and a second cam roller and which causes the valve assembly to reciprocate between the intermediate position and a second closed position, are provided so as to be operable separately, the first and second opening and closing mechanisms being disposed adjacent to each other in a thickness direction D of a gate valve.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Applicant: SMC CORPORATION
    Inventor: Takeshi NISHIKAWA
  • Publication number: 20230136636
    Abstract: A second communication circuit of each of solenoid valve modules other than a terminal solenoid valve module receives a signal from a switching line located in the next-stage solenoid valve module, and the second communication circuit of the terminal solenoid valve module that receives no signal from the switching line transmits a solenoid valve control signal and signals related to diagnostic information of the plurality of solenoid valve modules to a communication module via a receiving line.
    Type: Application
    Filed: October 3, 2022
    Publication date: May 4, 2023
    Applicant: SMC CORPORATION
    Inventor: Yui OKADA
  • Publication number: 20230132067
    Abstract: [Solution] A pilot check valve includes a first body that has input and output ports, a main path 13 that is in communication these ports, and a check valve element that allows a flow of a pressure fluid from the input port toward the output port. The valve element blocks or allows a flow toward the input port side by supply or discharge of a pilot fluid and has a residual pressure exhaust path connected between the main path and an exhaust hole, a seal member that is provided in the exhaust path, and a push rod that moves the check valve element to a position where a flow of a pressure fluid toward the input port side in the main path is allowed and moves the seal member to a position where a flow toward the exhaust hole is allowed.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 27, 2023
    Applicant: SMC CORPORATION
    Inventor: Kenji FUKUSHIMA
  • Publication number: 20230116364
    Abstract: A gate valve is disposed between first and second chambers and allows a first opening leading to the first chamber and a second opening leading to the second chamber to be communicated and opens and closes. The gate valve includes a valve shaft, first and second valve plates that are attached to a leading end part of the valve shaft, an operation mechanism that moves these valve plates to an evacuation position at which the first opening and the second opening are communicated, a first closed position at which the first opening is closed by the first valve plate, and a second closed position at which the second opening is closed the second valve plate by operating the valve shaft, a fastening mechanism that attaches these valve plates to the valve shaft, and a support mechanism that fasten both end parts of these valve plates in a longitudinal direction.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 13, 2023
    Applicant: SMC CORPORATION
    Inventor: Takeshi NISHIKAWA
  • Publication number: 20230110422
    Abstract: A lift device includes a body having a cylindrical shape and an elastic member having an annular shape. The body includes, at an axial end thereof, a flat surface configured to hold a workpiece. The elastic member is disposed on an outer periphery of the flat surface of the body, and includes an annular protruding portion that protrudes beyond the flat surface of the body in an axial direction of the body. The annular protruding portion has a circular-arc-shaped cross-section. Air supplied to the body flows along the flat surface of the body and the annular protruding portion of the elastic member.
    Type: Application
    Filed: September 9, 2022
    Publication date: April 13, 2023
    Applicant: SMC CORPORATION
    Inventors: Masaru SAITOH, Hiroaki SAKA
  • Patent number: 11623314
    Abstract: A magnetic chuck includes a cylinder tube including a workpiece attraction surface to which a workpiece is attracted, a piston assembly including a permanent magnet and being movable in an internal space of the cylinder tube, the piston assembly separating the internal space of the cylinder tube into a first pressure chamber and a second pressure chamber, a first supply/discharge port formed in the cylinder tube and communicating with the first pressure chamber, a second supply/discharge port formed in the cylinder tube and communicating with the second pressure chamber, and a communication passage configured to allow the first pressure chamber and the second pressure chamber to communicate with each other.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: April 11, 2023
    Assignee: SMC Corporation
    Inventor: Motohiro Sato
  • Patent number: 11619245
    Abstract: In a fluid circuit for an air cylinder connected to a switching valve provided with exhaust ports, a head-side pressure chamber is connected to the switching valve by a first pipe, and a rod-side pressure chamber is connected to the switching valve by a second pipe. A first restrictor is disposed at a connection point between the first pipe and the switching valve or in the vicinity of a first output port of the switching valve, and a second restrictor is disposed at a connection point between the second pipe and the switching valve or in the vicinity of a second output port of the switching valve.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: April 4, 2023
    Assignee: SMC CORPORATION
    Inventor: Naoki Shinjo
  • Patent number: 11608902
    Abstract: A connecting fitting is disposed on an upper face of a valve plate and is fixed to the connecting shaft. A first close-contact mechanism portion is formed at a portion where the connecting fitting and the connecting shaft are in contact with each other, a second close-contact mechanism portion is formed at a portion where the connecting fitting and the valve plate are in contact with each other, and a third close-contact mechanism portion is formed at a portion where the lower end of the valve plate and the lower end of the connecting shaft are in contact with each other. By bringing the valve plate and the connecting shaft toward each other with the close-contact mechanism portions of three vertical positions, a hole front face of a connection hole and a shaft front face of a connecting shaft are brought into close contact with each other.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: March 21, 2023
    Assignee: SMC CORPORATION
    Inventor: Tsuyoshi Ochi
  • Patent number: 11569774
    Abstract: An actuator control device supplies electrical power to a plurality of actuators via a plurality of controller units consecutively disposed and connected in one direction. A power supply unit or an input/output and power supply unit is interposed between each arbitrary number of controller units from within the plurality of controller units. In a case that the power supply unit is interposed, the power supply unit supplies electrical power to the block connected on a downstream side in a connecting direction. In a case that the input/output and power supply unit is interposed, the input/output and power supply unit performs input and output of signals to and from an exterior and the block that is connected on the downstream side in the connecting direction, while also supplying electrical power to the block.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: January 31, 2023
    Assignee: SMC CORPORATION
    Inventors: Atsushi Fujiwara, Eiji Iijima
  • Patent number: D978283
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: February 14, 2023
    Assignee: SMC CORPORATION
    Inventor: Takayuki Tanaka
  • Patent number: D980383
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: March 7, 2023
    Assignee: SMC CORPORATION
    Inventor: Takayuki Tanaka
  • Patent number: D982137
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: March 28, 2023
    Assignee: SMC CORPORATION
    Inventors: Ken Gunji, Toshinori Kurata, Katsuya Morozumi
  • Patent number: D984588
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: April 25, 2023
    Assignee: SMC CORPORATION
    Inventors: Akiho Nishimura, Akira Tadano
  • Patent number: D985099
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: May 2, 2023
    Assignee: SMC CORPORATION
    Inventors: Hirosuke Yamada, Kenji Shishido, Takahiro Ueyama
  • Patent number: D986175
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: May 16, 2023
    Assignee: SMC CORPORATION
    Inventors: Tomohiko Aki, Yuko Kochi, Naoki Murakami, Norimasa Ozaki
  • Patent number: D986296
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: May 16, 2023
    Assignee: SMC CORPORATION
    Inventors: Youji Takakuwa, Kengo Monden
  • Patent number: D987688
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: May 30, 2023
    Assignee: SMC CORPORATION
    Inventor: Kouhei Tomita