Patents Assigned to Quincy Technologies, Inc.
  • Harmonic drive flexspline manufacture
    Patent number: 4934212
    Abstract: A strain wave gearing device comprising a ring gear having internal axially extending teeth and a strain gear produced from a strain gear blank having constant thickness to the cylindrical and diaphragm portions. The cylindrical portion has external axially extending teeth extending around an annular portion adjacent the open end of the strain gear for engaging with the internal teeth of the ring gear (the number of external teeth on the strain gear being different than the number of internal teeth on the ring gear) and a wave generator is located within and matingly engages with the strain gear. The diaphragm portion is reduced in final thickness from the uniform blank thickness to about one-half the blank thickness by machining, after the strain gear has been produced from the blank. The wave generator adapted to be rotatively driven relative to the strain gear whereby relative rotational movement will occur between the strain and ring gears.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: June 19, 1990
    Assignee: Quincy Technologies, Inc.
    Inventor: Christopher A. Hofmeister
  • Uniform wall flexspline
    Patent number: 4817457
    Abstract: A strain wave gearing device comprising a ring gear having internal axially extending teeth and a strain gear produced from a strain gear blank having constant thickness to the cylindrical and diaphragm portions. The cylindrical portion has external axially extending teeth extending around an annular portion adjacent the open end of the strain gear for engaging with the internal teeth of the ring gear (the number of external teeth on the strain gear being different than the number of internal teeth on the ring gear) and a wave generator is located within and matingly engages with the strain gear. The wave generator adapted to be rotatively driven relative to the strain gear whereby relative rotational movement will occur between the strain and ring gears.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: April 4, 1989
    Assignee: Quincy Technologies, Inc.
    Inventor: John H. Carlson
  • Extended contact variable ball planetary type wave generator
    Patent number: 4776708
    Abstract: A wave generator for a strain wave gearing device is provided wherein variant size balls are retained by a ball separator located between inner and outer ball races. A multiple number of balls on each diametrically opposed sides have the largest diameter with the balls decreasing in size away from these balls.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: October 11, 1988
    Assignee: Quincy Technologies, Inc.
    Inventor: John H. Carlson