Patents by Inventor Russell L. Keeler

Russell L. Keeler 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: 5468199
    Abstract: A playground apparatus (10) for children to slide across while hanging by their hands is disclosed. The apparatus includes a support structure (12, 16, and 20) holding multiple rails (18), preferably five, horizontally above the ground and above the heads of the children. The rails are generally parallel one to another and include gentle curves along their length. Handhold assemblies (22) are slidably coupled to each of the rails and include two grips (40) on each assembly for users' hands. The grips are disposed below the rails and the handhold assemblies include partitions (46) between the rails and the grips to protect the children's hands from the rails. The handhold assemblies include channels (44) in which the rails are received and allowed to slide. The channels are wider in their middle portions than at their ends to accommodate the curves in the rails.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: November 21, 1995
    Assignee: BigToys, Inc.
    Inventors: Russell L. Keeler, John M. Underbrink
  • Patent number: 5443012
    Abstract: In accordance with the present invention, a playground carriage (10) is provided for moving people (100) from one play area to another. The playground carriage comprises a rotatable support pipe (12) having a first end (14) and a second end (16). The support pipe extends between a first vertical column (18) and a second vertical column (20). A manually-operated crank (22) having a first end (24) and a second end (26) is also included. The manually-operated crank extends between the first vertical column and a third vertical column (48). The first end of the crank is coupled to the first end of the support pipe so that manually turning the crank rotates the support pipe. A carriage (28) for carrying people is mounted to the support pipe. The carriage is advanced along the support pipe by a carrier (30).
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: August 22, 1995
    Assignee: BigToys, Inc.
    Inventors: John M. Underbrink, Russell L. Keeler