Concrete reinforcement spacer and method of use

• US 4,689,867 A
• Filed: 06/03/1985
• Issued: 09/01/1987
• Est. Priority Date: 09/27/1982
• Status: Expired due to Fees

• Current Assignee: Superior Steel Incorporated
• Original Assignee: Superior Steel Incorporated
• Inventors: Tolliver, Wilbur E.
• Primary Examiner(s): Murtagh, John E.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/739,769
• Time in Patent Office: 820 Days
• Field of Search: 52/652, 52/655, 52/664, 52/677, 52/678, 52/684-689, 52/741, 52/334, 52/337, 52/340, 404/35, 404/36, 29/155 R, 29/453, 140/112, 249/91, 264/69, 264/256, 264/333
• US Class Current: 29/453
• CPC Class Codes: E04C 5/18 Spacers of metal or substantially of metal E04C5/168 takes precedence
• CPC Class Codes: Y10T 29/49632 Metal reinforcement member for nonmetallic, e.g., concrete, structural element
• CPC Class Codes: Y10T 29/49876 by snap fit

Abstract

A welded wire concrete reinforcement spacer having spaced uprights with tops projecting up from the bottoms toward one another, a support means on the uprights and located below the tops of the uprights, the tops being spaced sufficiently to allow a reinforcement member to pass therebetween but spaced sufficiently close together as to prevent easy and accidental withdrawal of the reinforcement member from between the uprights.

The spacer can include a second support means for supporting a second reinforcement member, and the first support means can include a cross piece secured to and extending between the uprights, or a notch in the tops of the uprights. A concrete reinforcement spacer and reinforcement assembly is also included, as well as a method of use for the same.

Claims

1. A method for reinforcing concrete comprising:

positioning a plurality of spacers throughout a concrete form;

providing each spacer with a base platform, a pair of inverted, generally U-shaped spaced uprights and a pair of lateral cross supports extending between said uprights, each of said uprights comprising a metal rod bent into said generally U-shaped configuration so as to define a pair of spaced legs joined by an upper top member, said legs being secured at their bottoms to said platform, said uprights being inclined at an angle towards one another so that they are relatively close together at said top members and are spaced farther apart at the bottoms of said legs, said lateral cross supports being secured to and extending between opposed legs on adjacent uprights at a point spaced below said top members whereby in side elevation, the spacers have a generally "A" shaped configuration;

spacing said tops of said uprights sufficiently far apart to allow passage therebetween of a reinforcement rod therebetween and into a position between said spaced uprights, supported by said cross supports, but sufficiently close together so as to prevent easy or accidental withdrawal of said reinforcement rod from between said uprights;

supporting a first reinforcement mat on said spacers, said first mat comprising a plurality of generally parallel rods joined at generally right angles to a second plurality of generally parallel rods, by inserting one of said rods at each said spacer through said spacing at the tops of said uprights and into position resting on said cross supports;

supporting a second mat on said spacers, said second mat also comprising a plurality of generally parallel rods joined at generally right angles to a second plurality of generally parallel rods, by supporting one of said rods at each of said spacers on said tops of said uprights.

2. A method as described in claim 1 wherein said supporting step further includes, providing said spacers with a notch in each of said tops of sufficient depth such that when positioning a rod of said second mat within said notches another generally perpendicular rod is positioned between said uprights.

3. A method as described in claim 1 wherein said supporting step further includes, providing said spacers in which said uprights are resilient, forcing apart said tops by insertion of a rod therebetween, until said tops snap back toward one another to trap said rod beteen said uprights.