Patents by Inventor Isamu Kinno

Isamu Kinno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Gate valve and cylinder apparatus
    Patent number: 6454241
    Abstract: A gate valve in which the structure is simplified and inexpensive, movement of a valve body is smooth and high in speed, a force of inclination moving the valve body is strong, and a sealing property of an opening portion can be improved. The gate valve has a valve body capable of sealing the opening portion; a valve rod to which the valve body is fixed; a roller rotatably provided on the other end portion of the valve rod; a roller receiving member having a first holding portion for holding the roller when the valve rod moves the roller straight, an inclined surface for inclining the valve rod, and a second holding portion for holding the roller when the valve rod is inclined up to a predetermined angle; a driving means for moving the roller receiving member straight; and stoppers limiting the straight movement of the valve rod at predetermined positions at which the valve body closes the opening portion. This gate valve is preferably driven by the cylinder apparatus.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: September 24, 2002
    Assignee: NOK Corporation
    Inventors: Yuzuru Tamura, Isamu Kinno
  • Gate valve and cylinder apparatus
    Publication number: 20010052586
    Abstract: A gate valve in which the structure is simplified and inexpensive, movement of a valve body is smooth and high in speed, a force of inclination moving the valve body is strong, and a sealing property of an opening portion can be improved. The gate valve has a valve body capable of sealing the opening portion; a valve rod to which the valve body is fixed; a roller rotatably provided on the other end portion of the valve rod; a roller receiving member having a first holding portion for holding the roller when the valve rod moves the roller straight, an inclined surface for inclining the valve rod, and a second holding portion for holding the roller when the valve rod is inclined up to a predetermined angle; a driving means for moving the roller receiving member straight; and stoppers limiting the straight movement of the valve rod at predetermined positions at which the valve body closes the opening portion. This gate valve is preferably driven by the cylinder apparatus.
    Type: Application
    Filed: August 23, 2001
    Publication date: December 20, 2001
    Applicant: NOK Corporation
    Inventors: Yazuru Tamura, Isamu Kinno
  • Gate valve and cylinder apparatus
    Patent number: 6283445
    Abstract: A gate valve in which the structure is simplified and inexpensive, movement of a valve body is smooth and high in speed, a force of inclination moving the valve body is strong, and a sealing property of an opening portion can be improved. The gate valve has a valve body capable of sealing the opening portion; a valve rod to which the valve body is fixed; a roller rotatably provided on the other end portion of the valve rod; a roller receiving member having a first holding portion for holding the roller when the valve rod moves the roller straight, an inclined surface for inclining the valve rod, and a second holding portion for holding the roller when the valve rod is inclined up to a predetermined angle; a driving means for moving the roller receiving member straight; and stoppers limiting the straight movement of the valve rod at predetermined positions at which the valve body closes the opening portion. This gate valve is preferably driven by the cylinder apparatus.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: September 4, 2001
    Assignee: NOK Corporation
    Inventors: Yuzuru Tamura, Isamu Kinno
  • Gate valve and cylinder apparatus
    Patent number: 6045117
    Abstract: A gate valve in which the structure is simplified and inexpensive, movement of a valve body is smooth and high in speed, a force of inclination moving the valve body is strong, and a sealing property of an opening portion can be improved. The gate valve has a valve body capable of sealing the opening portion; a valve rod to which the valve body is fixed; a roller rotatably provided on the other end portion of the valve rod; a roller receiving member having a first holding portion for holding the roller when the valve rod moves the roller straight, an inclined surface for inclining the valve rod, and a second holding portion for holding the roller when the valve rod is inclined up to a predetermined angle; a driving means for moving the roller receiving member straight; and stoppers limiting the straight movement of the valve rod at predetermined positions at which the valve body closes the opening portion. This gate valve is preferably driven by the cylinder apparatus.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: April 4, 2000
    Assignee: NOK Corporation
    Inventors: Yuzuru Tamura, Isamu Kinno
  • Gate valve and cylinder apparatus
    Patent number: 5934646
    Abstract: A gate valve in which the structure is simplified and inexpensive, movement of a valve body is smooth and high in speed, a force of inclination moving the valve body is strong, and a sealing property of an opening portion can be improved. The gate valve has a valve body capable of sealing the opening portion; a valve rod to which the valve body is fixed; a roller rotatably provided on the other end portion of the valve rod; a roller receiving member having a first holding portion for holding the roller when the valve rod moves the roller straight, an inclined surface for inclining the valve rod, and a second holding portion for holding the roller when the valve rod is inclined up to a predetermined angle; a driving means for moving the roller receiving member straight; and stoppers limiting the straight movement of the valve rod at predetermined positions at which the valve body closes the opening portion. This gate valve is preferably driven by the cylinder apparatus.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: August 10, 1999
    Assignee: Nok Corporation
    Inventors: Yuzuru Tamura, Isamu Kinno