US 7,243,897 B2Granted

Foundation footing form and accessories

OwnerDonald G. Huber, Terry Hartmaninventors

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Abstract

Moisture resistant foundation footing form sections constructed from corrugated plastic are disclosed. Supports for holding sections of reinforcing bar, and connecting the side walls of the form sections are included. Also disclosed are tabs and notches in the side walls for use with stakes to connect adjacent form sections. Form sections are disclosed for constructing a corner in a foundation footing form. Step-down forms are disclosed for constructing a foundation footing form on a construction site having surfaces of different elevations. The form sections can be secured in position with stakes, and leveling devices for leveling the form once it is secured in position are disclosed. The form sections disclosed herein can be reused, but they do not attract insects and therefore they do not have to be removed from finished foundation footings.

Claims11

Dependent claims

A form section comprising:

a pair of substantially planar side walls made from corrugated plastic having spaced, integral interconnecting ribs between two facing sheets of plastic, each side wall having a long axis, a first end, a second end, an interior surface, an exterior surface, a top edge, and a bottom edge;
the side walls being constructed such that channels created by the integral interconnecting ribs are open at the top edge and the bottom edge of the side walls;
means for connecting the side walls to each other such that the interior surfaces of the side walls face each other the means for connecting the side walls to each other such that the interior surfaces of the side walls face each other is an interlocking support having a top support and a bottom support;
the top support having ends that are configured for insertion into a space between the integral interconnecting ribs of the corrugated plastic at the top of the side walls such that the top support will rest on the top edge of the side walls;
the top support further having a reinforcing bar guide member extending from each end downward into the space between the two side walls to a top support cross member that spans the space between the guide members;
the bottom support having ends that are configured for insertion into the space between the integral interconnecting ribs of the corrugated plastic at the bottom of the side walls;
the bottom support further having a support leg extending from each end upward into the space between the two side walls to a bottom support cross member that spans the space between the support legs;
and;
the bottom support cross member is pulled over the top support cross member, the top support and the bottom support are interlocked;
means for supporting horizontal reinforcing bars within the form section;
means for securing vertical reinforcing bars within the form section;
means for securing the form section in a desired location;
and
means for ensuring that the form section is level.

11 more elements

A form section comprising:

a pair of substantially planar side walls made from corrugated plastic having spaced, integral interconnecting ribs between two facing sheets of plastic, each side wall having a long axis, a first end, a second end, an interior surface, an exterior surface, a top edge, and a bottom edge;
an interlocking connection device having a top support and a bottom support;
the top support having ends that are configured for insertion into a space between the integral interconnecting ribs of the corrugated plastic at the top of the side walls;
the top support being configured to support a reinforcing bar within the form;
a plurality of reinforcing bar support members having ends that are configured for insertion into the space between the integral interconnecting ribs of the corrugated plastic at the top of the side walls;
the reinforcing bar support members being configured to secure a vertical reinforcing bar within the form section;
a bottom support having ends that are configured for insertion into the space between the integral interconnecting ribs of the corrugated plastic at the bottom of the side walls;
the top support and the bottom support being further configured such that when the ends of the top support are inserted into the side walls and the ends of the bottom support are inserted into the side wall directly below the ends of the top support on the side walls, the top support and the bottom support can be interlocked;
and
a plurality of stakes configured for insertion into the space between the integral interconnecting ribs of the corrugated plastic of the side walls and into a substrate below the form section.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/876,977Filed 23 Jun 2004 · us provisional application
Priority: 23 Jun 2003
Published: US 2005/0023432 A13 Feb 2005
Granted: 17 Jul 2007
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

E04G 9/05
Forming boards or similar elements: the form surface being of plastics
E02D 27/01
Foundations as substructures: flat foundations
E04B 1/4157
Connecting devices specially adapted for embedding in concrete or masonry: longitudinally-externally threaded elements extending from the concrete…
E04C 5/166
Connectors or means for connecting parts for reinforcements: the reinforcements running in different directions