Patents by Inventor Roger D. Gehlbach

Roger D. Gehlbach 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: 4627612
    Abstract: A play device having a pair of longitudinal members. Cross members join the longitudinal members to form a ladder-like structure. A first member is attached to one longitudinal member by different length limbs and includes a support section joining the limbs. A second member is attached to the other longitudinal member by different length limbs and also includes a support section joining the limbs. The first support member has its longer limb at that end of the play device where the second member has its shorter limb. There are locating means for the play device.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: December 9, 1986
    Inventor: Roger D. Gehlbach
  • Patent number: 4316525
    Abstract: A ladder for a children's play structure comprises spaced-apart, elongate side members extending from a first end of the ladder to a second end thereof. A plurality of rungs extend perpendicularly between the side members, adjacent rungs having a distance therebetween which increases from the first end of the ladder to the second end. A third elongate member, parallel to the side members and midway therebetween, extends substantially from the first end of the ladder to the second end. The third member is outwardly spaced, away from the rungs, such that a child climbing the ladder from the first end towards the second end, having his feet on the rungs and grasping the third member, exercises his arm and torso muscles in lifting his body.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: February 23, 1982
    Assignee: Gehlbach Engineering Ltd.
    Inventor: Roger D. Gehlbach
  • Patent number: D260276
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: August 18, 1981
    Assignee: Interplay Design Limited
    Inventors: Roger D. Gehlbach, Zoltan Kitka