Patents by Inventor Ray G. Manus

Ray G. Manus 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: 4226411
    Abstract: Playground apparatus of the teeter-totter or seesaw type for a plurality of riders which is characterized by completely individual movement of each rider wherein the movement of any one rider does not affect the movement of any other riders, as follows. A plurality of spaced-apart rocker arms are separately pivotally mounted to a vertically disposed support without interconnection to the other of the rocker arms for up and down movement. A biasing member is provided for each of the rocker arms for individually biasing the rocker arms in an upward direction and for allowing downward movement against the bias thereof. A rider supporting unit is on each of the outer ends of each of the rocker arms.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: October 7, 1980
    Inventor: Ray G. Manus
  • Patent number: D256941
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: September 16, 1980
    Inventor: Ray G. Manus
  • Patent number: D410271
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: May 25, 1999
    Inventor: Ray G. Manus
  • Patent number: D411604
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: June 29, 1999
    Inventor: Ray G. Manus
  • Patent number: D421636
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: March 14, 2000
    Inventor: Ray G. Manus
  • Patent number: D426609
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: June 13, 2000
    Inventor: Ray G. Manus
  • Patent number: D793498
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: August 1, 2017
    Inventor: Ray G. Manus