Patents by Inventor Gregg Ellerhorst

Gregg Ellerhorst 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: 7374109
    Abstract: A rail cushion assembly including a resilient rail pad for placement against the lower surface of a railroad rail, and an underlying abrasion plate for placement against a railroad tie. The rail pad includes a pair of slots that extend through opposite end sloping edge panels that are adjacent to the lower surface of the rail pad. The abrasion plate is a flat, sheet-like component that has a generally similar shape as that of the rail pad but includes a pair of outwardly-extending connection tabs, one at each of a pair of opposite edge surfaces. The connection tabs of the abrasion plate are received in respective slots of the rail pad to provide the rail cushion assembly in ready-to-use form and without requiring on-site assembly of the components.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: May 20, 2008
    Assignee: Crown Plastics Company
    Inventor: Gregg A. Ellerhorst
  • Publication number: 20070235551
    Abstract: A rail cushion assembly including a resilient rail pad for placement against the lower surface of a railroad rail, and an underlying abrasion plate for placement against a railroad tie. The rail pad includes a pair of slots that extend through opposite end sloping edge panels that are adjacent to the lower surface of the rail pad. The abrasion plate is a flat, sheet-like component that has a generally similar shape as that of the rail pad but includes a pair of outwardly-extending connection tabs, one at each of a pair of opposite edge surfaces. The connection tabs of the abrasion plate are received in respective slots of the rail pad to provide the rail cushion assembly in ready-to-use form and without requiring on-site assembly of the components.
    Type: Application
    Filed: April 6, 2006
    Publication date: October 11, 2007
    Applicant: Crown Plastics Company
    Inventor: Gregg Ellerhorst