Support for elongated reinforcing members in concrete structures

Claim 1

A slab chair integrally formed of a plastic material for supporting elongated reinforcing members at a desired position in a concrete structure comprising a circular planar base, a tubular support member extending centrally from said base for supporting two intersecting elongated reinforcing members a predetermined distance from said base, said tubular support member having openings therethrough permitting concrete to enter the interior thereof, four equidistantly spaced radially disposed arms projecting from said base along the length of said hollow support member and extending above the top of said support member for receiving and providing lateral support for said two intersecting elongated reinforcing members, said extending arms having inwardly projecting portions at the tips thereof for retaining said elongated members between said arms, the spacing between the top surface of said support member and the inwardly projecting portions at the tips of said extending arms being substantially equal to the sum of the diameters of said two elongated reinforcing members, the spacing between the inwardly projecting portions of adjacent arms being less than the diameter of said elongated reinforcing members, said arms being capable of flexing to receive said reinforcing members therebetween.