Patents Assigned to Material Sales, Inc.
  • Patent number: 4616225
    Abstract: A portable traffic control unit comprising a wheeled trailer having a main frame attachable to a towing vehicle. A telescoping, vertical mast carries a pivotally mounted boom assembly. A first traffic control signal is secured to the vertical mast and a second at the end of the horizontal boom. A winch assembly can be actuated to raise the vertical mast and upon the vertical mast reaching its full extension, causing the boom to pivot to a generally horizontal position. In the erected position, the device provides a street side signal and an over-the-road traffic control signal for safety and visibility.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: October 7, 1986
    Assignee: Material Sales, Inc.
    Inventor: John D. Woudenberg
  • Patent number: 4569495
    Abstract: A barricade post for supporting a reflectorized panel and warning light comprising an integrally formed member molded of a elastomeric material having a generally U-shaped cross-section. The upper end of the post defines a shoulder to support a warning light. The intermediate section of the post is generally of uniform cross-section and is adapted for securement of the reflectorized panel by bolts or similar mechanical fasteners. The lower pedestal portion of the post diverges outwardly and termimates at a base. The lower pedestal portion is reinforced by diagonally extending ribs so the unit will resist breaking if impacted by a vehicle.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: February 11, 1986
    Assignee: Material Sales, Inc.
    Inventors: John D. Woudenberg, Ronald B. Jones