Relatively Rotatable Patents (Class 297/240)
One seat has floor roller (Class 297/241)
Coaxially (Class 297/242)
  • Rotating seat device
    Patent number: 4034947
    Abstract: A rotating seat device for aiding rotational motion relative to a fixed seat is provided having flat disc-shaped members with smooth contacting inner surfaces and means for interconnecting the members and permitting relative rotational movement between the members while they remain in substantial registered relation.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: July 12, 1977
    Inventor: Anthony Geisel