Patents by Inventor Albert R. Erb

Albert R. Erb 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: 5342046
    Abstract: A novel, rigid and interlocking split grip, swing enhancing device suitable for use with a baseball or a baseball bat is described. This device is made from a hard, durable, and semi-pliable plastic material and can be installed under a conventional gripping sleeve commonly found on most baseball or softball bats. The device is installed in the proper place on the bat and the interlocking mechanism activated. When placed under one of the user's hand location (the upper or guiding hand) this device will insure a smooth and level swing and the proper alignment of the hands through the swing allowing the bat to make better contact with the ball. The device can be installed during the manufacture of the bat or can be added later.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: August 30, 1994
    Assignee: Rotary-Grip.TM., Inc.
    Inventor: Albert R. Erb
  • Patent number: 5259610
    Abstract: A novel, split grip, swing enhancing device suitable for use on a baseball or softball bat is described. This device is made from a flexible, slippable, pliable plastic material having a split longitudinally thereon and can be installed under a conventional gripping sleeve found on some bats. The split grip is placed under one of the user's hand location (the upper hand) and will insure a smooth and level swing and the proper alignment of the hands. The device can be installed during the manufacture of the bat or can be added later. A particularly preferred device is thick and made from two layers, the first layer of which is low slip and faces the sleeve and the second layer of which is high slip and faces the bat handle surface.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: November 9, 1993
    Assignee: Rotary-Grip.TM., Inc.
    Inventor: Albert R. Erb
  • Patent number: 5238246
    Abstract: A novel, split grip, swing enhancing device suitable for use with a baseball bat is described. This device is made from a flexible, slippable, pliable plastic material and can be installed under a conventional gripping sleeve commonly found on most baseball bats. The split grip is placed under one of the user's hand location (the upper hand) and will insure a smooth and level swing and the proper alignment of the hands. The device can be installed during the manufacture of the bat or can be added later.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: August 24, 1993
    Assignee: Rotary-Grip.TM., Inc.
    Inventor: Albert R. Erb