Patents by Inventor Marian A. Serafin

Marian A. Serafin 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).

  • Rail spring clip with tension limiting feature
    Patent number: 4109860
    Abstract: An assembly for securing a rail to a railway track sleeper of the type in which the rail is clamped on the sleeper by a resilient clip placed under stress by means of a nut screwed on a bolt associated with the sleeper. A bolt is provided with a shoulder which serves as an abutment to prevent undesired deformation of the resilient clip and/or the appearance of excessive extraction forces on the bolt when the nut is screwed down on the bolt. The bolt provided with a shoulder may be used with a variety of resilient clips.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: August 29, 1978
    Assignee: Societe Anonyme de Traverses en Beton Arme - Systeme Vagneux
    Inventors: Marian A. Serafin, Maurice Decubber