Patents Assigned to Structural Rubber Products Company
  • Patent number: 4421272
    Abstract: Anchoring bars are disclosed which are installed at the joint between surfacing modules laid end to end along or between a pair of rails in a railroad-highway grade crossing. The modules are of the elastomeric type. Each module is provided with an improved series of surface gutters of different depths with complementary spike wells extending into the elastomer to drain water away. The elastomeric surface layer of the modules is bonded to one or more reinforcing, corrugated steel subgrade surfacing members which cooperate with the anchor bars and the elastomeric layer to lock the modules together.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: December 20, 1983
    Assignee: Structural Rubber Products Company
    Inventor: Jacob O. Whitlock
  • Patent number: 4117977
    Abstract: A highway-railway crossing is provided wherein a pair of gage section units is disposed between the rails of a track and secured to the ties subtending and supporting the rails. A pair of side section units is also provided between which the rails and gage section units are disposed. Each side section unit has a peripheral portion thereof resiliently engaging the web section of a rail. Each gage section unit includes a resilient, moisture-proof upper lamina, and a plurality of elongated reinforcing elements arranged in laterally spaced substantially parallel relation and secured to the underside of the lamina. The gage section units are disposed in abutting side-by-side relation and span the distance between the rails. The gage section units have abutting inner faces provided with interfitting male and female segments forming an elongated moisture-proof joint.
    Type: Grant
    Filed: October 14, 1976
    Date of Patent: October 3, 1978
    Assignee: Structural Rubber Products Company
    Inventor: Jacob O. Whitlock