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US 4,904,111 AGranted
Adjustable support for use with metal keyway forms for above grade concrete slab
AssigneeCardinal Manufacturing Co.
InventorAlbert P. Weisbach
Life of this patent
Estimating the term…
Abstract
This invention discloses an adjustable support securable to metal decking to support a metal keyway form. The adjustable support can be used to establish keyway in concrete poured above ground level, particularly on metal decking. This method of producing a keyway in concrete on metal decking is a vast improvement over previous art and provides a secure, easy, inexpensive method of producing the keyway.
Claims7
An adjustable support securable to metal decking to support a metal keyway form comprising:
- a. a generally flat, rectangular metal strip containing a plurality of ridges running vertically the length of the strip, a plurality of closely spaced serrations across the top portion of the ridges and a securing means opening located in the lower portion of the strip;
- b. a generally L-shaped support member containing an elongated vertical oval opening and a plurality of valleys on the back of the member which align with the ridges of the metal strip;
- and
- c. a means for securing the L-shaped support member to the metal strip through the elongated vertical oval opening in the L-shaped support member and the securing means opening in the metal strip.
1 more element
A process for the pouring of a concrete slab on metal decking to produce a keyway comprising
- a. securing an adjustable support to metal decking, wherein the adjustable support is comprised of a generally flat rectangular metal strip containing a plurality of ridges running vertically the length of the strip, a plurality of closely spaced serrations across the top portion of the ridges and a securing means opening located in the lower portion of the strip;
- a generally L-shaped support member containing an elongated vertical oval opening and a plurality of valleys on the back of the member which align with the ridges of the metal strip;
- and a means for securing the L-shape support member to the metal strip through the elongated vertical opening in the L-shaped support member and the securing means opening in the metal strip;
- b. placing a metal keyway form containing an inverted hook portion with an inwardly facing lip onto the adjustable metal decking support and pushing the keyway form securely over the metal strip;
- and
- c. pouring concrete flush with the metal keyway form and the adjustable metal decking support.
3 more elements
Dependencies are inferred from the claim text.