Patents Assigned to Top Line Manufacturing, Inc.
  • Patent number: 6994389
    Abstract: A truck bed extender is attached to a tail gate by mounting brackets. The mounting brackets attach to the tail gate only, and require absolutely no alterations to the truck bed. The truck bed extender may be easily removed by removing two pins or may be folded against the tail gate for minimum intrusion into the truck bed when the tail gate is closed. A telescoping back section may be adjusted for various truck bed widths. Corners of the truck bed extender are squared off to maximize use of the extended truck bed.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: February 7, 2006
    Assignee: Top Line Manufacturing, Inc.
    Inventors: Thomas F. Graffy, Stepan Gevorkyan
  • Patent number: 4716988
    Abstract: A new construction method for a ladder for use on recreational vehicles and boats is disclosed. The ladder comprises two parallel metal tubular rails and a plurality of extruded aluminum steps, including step end caps. The steps are a unique triple-void hollow extrusion, fastened to the ladder rails with a spring pin that goes through two walls of the step extrusion and both walls of the rail tubing, anchoring in a third wall of the step extrusion. This provides a solid, close-coupled assembly that avoids the stresses caused by traditional cantilevered screw fastening methods. Plastic end caps molded with interference fingers, permitting assembly without mechanical fasteners, fit in the ends of the steps, providing protection and an attractive finish to the steps.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: January 5, 1988
    Assignee: Top Line Manufacturing Inc.
    Inventor: Thomas F. Graffy