Patents by Inventor Don A. Kumher

Don A. Kumher 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).

  • Multi-position ladder and support therefor
    Patent number: 6315078
    Abstract: A multi-position ladder includes a ladder, a longitudinally extending support member for supporting the ladder, and a tightening mechanism associated with the ladder or the support member. The tightening mechanism is operable to secure the ladder to the support member, thereby prohibiting movement of the ladder along the support member.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: November 13, 2001
    Inventors: Don A. Kumher, Boyd S. Kumher
  • Multi-position ladder and support therefor
    Patent number: 6105720
    Abstract: A multi-position ladder includes a ladder, a longitudinally extending support member for supporting the ladder, and a connecting member connecting the support member and the ladder. The connecting member includes a sliding bar, a pivot bar, and a rotating arm, the sliding bar being in sliding engagement with the support member for permitting lateral shifting movement of the ladder along the support member to one of multiple generally vertical use positions, the pivot bar extending laterally outwardly from the sliding bar for permitting pivotable movement of the ladder about the pivot bar between a generally vertical use position and one of multiple storage positions, and the rotating arm providing tilting movement of the ladder towards or away from a wall to which the support member is attached. The ends of the rotating arm are slidably received in elongated slots in the uprights of the ladder for permitting sliding movement of the ladder relative to the rotating arm.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: August 22, 2000
    Inventors: Don A. Kumher, Boyd S. Kumher
  • Multi-position ladder and support therefor
    Patent number: 6073725
    Abstract: A multi-position ladder includes a ladder, a longitudinally extending support member for supporting the ladder, and a connecting member connecting the support member and the ladder. The connecting member includes a sliding bar, a pivot bar, and a rotating arm, the sliding bar being in sliding engagement with the support member for permitting lateral shifting movement of the ladder along the support member to one of multiple generally vertical use positions, the pivot bar extending laterally outwardly from the sliding bar for permitting pivotable movement of the ladder about the pivot bar between a generally vertical use position and one of multiple storage positions, and the rotating arm providing tilting movement of the ladder towards or away from a wall to which the support member is attached.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: June 13, 2000
    Inventors: Don A. Kumher, Boyd S. Kumher