Patents by Inventor Yoshimi Iida

Yoshimi Iida 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).

  • Patent number: 5697710
    Abstract: A bearing seal suitable for sealing a bearing system (18) under extremely abrasive and damp conditions. The seal assembly (22) includes a metal casing (36) received in a housing (26) which defines a small annular gap (34) relative to a shaft (16) supported by the bearing system (18). The seal assembly (22) includes a first seal (42) and a second seal (48) spaced apart to define an annular space (60). The assembly (22) is provided with a plurality of passages (64/66) circumferentially spaced apart from one another. Upon pumping grease (76) under pressure into the bearing system, grease is forced to flow through the passages (64/66) whereby the annular gap (34) is filled with grease throughout substantially the entire circumference thereof. The mass of grease retained in the annular gap (34) serves as a barrier against water and abrasive particles. A bearing and seal assembly (10) is also disclosed.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: December 16, 1997
    Assignee: Nok Corporation
    Inventors: Yoshimi Iida, Hideo Kawabata
  • Patent number: 4234196
    Abstract: A roll neck sealing device comprising a neck seal consisting of an inside neck seal and an outside neck seal, both fitted to the outer surface of the neck portion of a roll, and a preventive means, one end of which is secured to the outside neck seal and the other end of which is inserted through a tapered hole, formed in the inside neck seal, into a core hole formed in the fixing pin secured to the end of the sleeve, said preventive means being adapted for preventing relative rotation between the neck seal and the sleeve, whereby the axial length over which the preventive means is inserted into the fixing pin is set greater than the maximum allowable axial play between the sleeve and the bushing, said axial play being caused when the sealing member is being replaced.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: November 18, 1980
    Assignee: Nippon Oil Seal Industry Co., Ltd.
    Inventor: Yoshimi Iida