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AssigneeERICO International Corporation
InventorsRichard E. Singer, Curtis R. Stidham, Robert McPherson, Jr., Thomas M. Dedo, Michael A. Spychola
Estimating the term…
An exothermic welding jig, molds for the jig, and a method of forming and manipulating the mold parts is disclosed. Upper and lower mold parts are included with a crucible fitted on and clamped to the upper mold part. The upper mold part and crucible may be moved as a unit to open and close the mold and also inverted when open for cleaning and inspection. The crucible can quickly be removed or snapped in place for mold or crucible change out. The jig will fit in cramped quarters and has a handle which may be used as a cane or supporting device. A toggle opens and closes the mold set and will hold the molds at any position where released. A mold system with diagonal sleeving makes it easier to form X-connections and other connections in tight or restrictive locations. The method includes the attachment and manipulative steps.
A mold assembly for exothermic welding comprising a jig, a crucible, and two separate mold parts, said jig comprising a base adapted to support a first mold part, and a carriage adapted to support the second mold part and the crucible, and means to move said carriage to open and close said mold.
An exothermic welding jig comprising first and second mold parts, and a crucible, means to clamp the first and second mold parts about objects to be welded, and to clamp the crucible to the mold parts, and means to separate the first and second mold parts and then pivot the second mold part and crucible as a unit to an inverted position for cleaning.
An exothermic welding jig for supporting separate first and second mold parts, and a crucible, means to support said first mold part in a relatively fixed position, and means to support said second mold part and crucible for movement as a unit toward and away from said first mold part.
Dependencies are inferred from the claim text.