Metalines, Inc.

Balco, Inc.

Michael D Wilson

Henry J Gohlke

Tom J Love

Loren W Keely

Dale A Schmitt

Apparatus for fireproof cover of expansion voids consisting of expansion joint cover structure spanning the expansion void and supporting at least one layer of stainless steel foil and other refractory material in continual coverage across said void.

Expansion joint fire barrier systems

The present invention consists of a metal trench grating and the method of manufacture by which it is constructed. The trench grating consists of plural cross bars having equi-spaced slots and a plurality of elongated rails inserted within the respective cross bar slots, and wherein a single weldment across the bottom of each cross bar provides complete fastening of the assembled trench guard. The method of manufacture stresses simplicity and quick assembly as the plural longitudinal rails are inserted in the plural-slotted cross bars and supported for final welding across the bottom central slot of each cross bar to produce the final form trench grating.

Trench grating and method of manufacture

Apparatus for concealment and abridgement of relatively larger expansion joint voids between structures exhibiting orthogonal relative movement. The assembly consists of base plate and slide structure secured in orthogonal disposition on opposite sides of an expansion void, with angular matching cover plate structure supported on said base plate and slide structure.

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Oklahoma City, OK, United States of America

Michael D Wilson