Wedge lock wheel assembly
Device for removably mounting of a lengthwise-adjustable column to a chair seat, table top, or the like
Torque transmitting coupling
ApplicationNo. 889693 filed on 07/10/1997
US Classes:403/374.3, Threaded actuator403/358Longitudinally stepped or tapered
ExaminersPrimary: Kim, Harry C.
Attorney, Agent or Firm
Foreign Patent References
International ClassF16B 2/1/8
AbstractA device for locking a disk or plate to a shaft, wherein the disk or plate has an opening therein corresponding substantially to the diameter of the shaft; the device comprising:a) a threaded bolt having an enlarged head;b) a wedge piece having a round outer surface interrupted by a tapered flat surface on one side thereof; the wedge piece having a throughbore through which the bolt is passed; andc) a nut for threaded engagement on the threaded bolt downstream of the wedge piece, the nut being bonded to the threaded shank adjacent the wedge piece.