Patents Assigned to FREEBEAR CORPORATION
  • Ball transfer and seal member for ball transfer employing pile seal member
    Patent number: 11447342
    Abstract: To provide a ball transfer and a seal member for a ball transfer, a seal member is employed which is characterized in that it has a seal member employing pile fiber that, at a ball transfer having a main body which has a socket, an inner surface of which is a hemispherical concave surface, a plurality of ball bearings arranged at the main exterior socket, a primary ball, diameter of which is greater than that of said ball bearings and which is rotatably supported by the socket by way of the ball bearings, and a housing-like case which surrounds the main body socket and rotatably supports the ball bearings and the primary ball at a bearing portion thereof and which has a hole from which a portion of the primary ball is made to protrude at an upper surface of the primary ball socket.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: September 20, 2022
    Assignees: SANWA TECHNO CO., LTD., FREEBEAR CORPORATION
    Inventors: Kazuro Fukui, Toshio Takino, Kaito Oomae, Nagamasa Maruyama, Hiroyuki Furuuchi, Atsushi Sakane
  • BALL TRANSFER AND SEAL MEMBER FOR BALL TRANSFER EMPLOYING PILE SEAL MEMBER
    Publication number: 20220170508
    Abstract: To provide a ball transfer and a seal member for a ball transfer, a seal member is employed which is characterized in that it has a seal member employing pile fiber that, at a ball transfer having a main body which has a socket, an inner surface of which is a hemispherical concave surface, a plurality of ball bearings arranged at the main exterior socket, a primary ball, diameter of which is greater than that of said ball bearings and which is rotatably supported by the socket by way of the ball bearings, and a housing-like case which surrounds the main body socket and rotatably supports the ball bearings and the primary ball at a bearing portion thereof and which has a hole from which a portion of the primary ball is made to protrude at an upper surface of the primary ball socket.
    Type: Application
    Filed: February 4, 2022
    Publication date: June 2, 2022
    Applicants: SANWA TECHNO CO., LTD., FREEBEAR CORPORATION
    Inventors: Kazuro Fukui, Toshio Takino, Kaito Oomae, Nagamasa Maruyama, Hiroyuki Furuuchi, Atsushi Sakane
  • BALL TRANSFER AND SEAL MEMBER FOR BALL TRANSFER EMPLOYING PILE SEAL MEMBER
    Publication number: 20210207299
    Abstract: To provide a ball transfer and a seal member for a ball transfer, a seal member is employed which is characterized in that it has a seal member employing pile fiber that, at a ball transfer having a main body which has a socket, an inner surface of which is a hemispherical concave surface, a plurality of ball bearings arranged at the main exterior socket, a primary ball, diameter of which is greater than that of said ball bearings and which is rotatably supported by the socket by way of the ball bearings, and a housing-like case which surrounds the main body socket and rotatably supports the ball bearings and the primary ball at a bearing portion thereof and which has a hole from which a portion of the primary ball is made to protrude at an upper surface of the primary ball socket.
    Type: Application
    Filed: May 11, 2020
    Publication date: July 8, 2021
    Applicants: SANWA TECHNO CO., LTD., FREEBEAR CORPORATION
    Inventors: Kazuro Fukui, Toshio Takino, Kaito Oomae, Nagamasa Maruyama, Hiroyuki Furuuchi, Atsushi Sakane
  • Roller ball for conveyance
    Patent number: D948156
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: April 5, 2022
    Assignee: FREEBEAR CORPORATION
    Inventor: Hiroyuki Furuuchi