Patents by Inventor Karl A. List

Karl A. List 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: 6837838
    Abstract: An exercise device comprising two box-like open-sided platform sections disposed side-by-side in a closed, storage and transporting position or end-to-end in an open exercising position and having two rotary disk assemblies that are mountable in a plurality of fixed exercising positions along the platform sections by means of pins on the lower sides of the disk assemblies and a longitudinal series of mounting holes in each platform section. Elongated elastic resistance bands are connectable between the rotary disks, on hook connectors thereon, and between the disks and the platform sections, in various ways for closed-chain operation, when desired, or removable for open-chain exercises. A carrying handle and latches are provided in the platform sections, and U-shaped connectors are provided to join the platform sections together.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: January 4, 2005
    Inventor: Karl A. List
  • Patent number: 6733428
    Abstract: An exercise device having a base in the form of an open-sided rectangular box and a rectangular cover for the open side having four wheels that are disposed in the base for storage, the cover being removable to serve as a movable platform during exercise. An elastic resistance band is trained around connectors in the base and exits and reenters through two holes in one side, forming an external run that is connectable to the movable platform by a hook on its underside, and two stub handles are stored in clips in the base and attachable to filling on the outside for use. Two optional disk assemblies are mountable on the base and the cover by pins that fit loosely in holes therein, and have freely rotatable top pieces that add rotational movements to the reciprocating movements of the base and the movable platform. Elastic connecting bands are provided for tying the disk assemblies together during rotation, for closed-chain exercise, and are removable for open-chain exercise.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: May 11, 2004
    Inventor: Karl A. List
  • Publication number: 20020151417
    Abstract: An exercise device comprising two box-like open-sided platform sections disposed side-by-side in a closed, storage and transporting position or end-to-end in an open exercising position and having two rotary disk assemblies that are mountable in a plurality of fixed exercising positions along the platform sections by means of pins on the lower sides of the disk assemblies and a longitudinal series of mounting holes in each platform section. Elongated elastic resistance bands are connectable between the rotary disks, on hook connectors thereon, and between the disks and the platform sections, in various ways for closed-chain operation, when desired, or removable for open-chain exercises. A carrying handle and latches are provided in the platform sections, and U-shaped connectors are provided to join the platform sections together.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 17, 2002
    Inventor: Karl A. List
  • Publication number: 20020151416
    Abstract: An exercise device having a base in the form of an open-sided rectangular box and a rectangular cover for the open side having four wheels that are disposed in the base for storage, the cover being removable to serve as a movable platform during exercise. An elastic resistance band is trained around connectors in the base and exits and reenters through two holes in one side, forming an external run that is connectable to the movable platform by a hook on its underside, and two stub handles are stored in clips in the base and attachable to filling on the outside for use. Two optional disk assemblies are mountable on the base and the cover by pins that fit loosely in holes therein, and have freely rotatable top pieces that add rotational movements to the reciprocating movements of the base and the movable platform. Elastic connecting bands are provided for tying the disk assemblies together during rotation, for closed-chain exercise, and are removable for open-chain exercise.
    Type: Application
    Filed: March 1, 2002
    Publication date: October 17, 2002
    Inventor: Karl A. List