Patents by Inventor Benjamin Wabnitz

Benjamin Wabnitz 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).

  • Method and apparatus for electrically isolating a rail in a precast concrete grade crossing
    Patent number: 5464152
    Abstract: A precast concrete grade crossing includes a plurality of base members, each of which has a central recess formed in the upper surface thereof. A pair of rails are each encased by a rubber boot which extends through the crossing in a single continuous piece. The boot-encased members are received in the recess which includes a shoulder along the outer side of each rail. The shoulder bears against a lip of the boot which extends upwardly to along outer side of the head of the rail to prevent moisture from entering the space between the boot and the rail below the shoulder.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: November 7, 1995
    Assignee: Pacific International Pipe Enterprises, Inc.
    Inventor: Benjamin Wabnitz