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US 3,961,452 AGranted
Wall construction
AssigneeKawneer Company, Inc.
InventorsS. Eugene Hubbard, Lawrence F. Biebuyck
Life of this patent
Estimating the term…
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AssigneeKawneer Company, Inc.
InventorsS. Eugene Hubbard, Lawrence F. Biebuyck
Estimating the term…
There is provided an improved wall construction including a vertical mullion and a horizontal member. The horizontal member is provided with longitudinally extending screw splines. The members may be assembled in the known shear block method, or in a known screw spline system, or further in accordance with the present invention the members may be assembled in accordance with an improved shear pin system. The shear pin system employs a shear pin which joins the horizontal members to the vertical mullions. The vertical mullion is prepared for the attachment of a horizontal member by forming holes to receive the head of a shear pin, and the horizontal member is prepared by the insertion of the shear pins into screw splines formed in the horizontal member. The horizontal member is then installed on the vertical by installing the head of the shear pin into the hole previously drilled in the vertical mullion, and then tapping the horizontal downward until the shear pins bottom in the holes.
A wall construction including a through vertical mullion of one piece continuous tubular transverse cross-section having a pair of spaced apart opposite side walls with a glazing recess in at least one of said side walls and a horizontal member in end abutting relation against said one of said side walls, said horizontal member having a pair of longitudinally extending screw splines disposed on opposite sides of a glazing recess aligned with the recess in said side wall for receiving an edge portion of a wall panel, a pair of shear pin fasteners each having a threaded shank threaded into the end of one of the screw splines and having a head portion projecting laterally of said shank and spaced from said end of its respective screw spline, said fasteners each including an arcuate bearing portion between said head portion and shank providing the spacing between said head portion and the end of said horizontal member, said vertical mullion having spaced apart circular holes in said one side wall for receiving said head portions of said fasteners inserted through said holes until inside of said one side wall within said tubular cross-section with said arcuate bearing portions bottomed against lower portions of wall edges defined by said holes with said head portion bearing against the inside surface of said one side wall to secure said horizontal member together with said vertical mullion with adequate bearing support for said horizontal member.
Dependencies are inferred from the claim text.