US 5,965,053 AGranted

Penetratable form with stiffback

AssigneeWestern Forms, Inc.

InventorMichael G. Carlson

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Abstract

A penetratable stiffback useful as a building form is provided and is useful as an integrated member of a forming system in conjunction with a pair of forming panels. The stiffback includes a face panel and a pair of rearwardly projecting support walls, each support wall including a lug projecting outwardly therefrom intermediate the rear margin and the rear of the face panel. The face panel includes a front face for location coplanar with a pair of adjacent forming panels to present a forming system for receiving hardenable material thereagainst, the lugs serving to reinforce the panels on either side. The system includes a connecting member for penetrating the face panel and connection to an opposing forming wall to inhibit separation of the forming walls caused by the weight of the hardenable material poured between the forming walls.

Claims12

Dependent claims

A forming system for retaining a hardenable material comprising:

a first forming panel presenting a first face plate having a first front surface for engagement with the hardenable material and a first side rail;
a second forming panel presenting a second face plate having a first front surface for engagement with the hardenable material and a second side rail;
a stiffback including:
an elongated face panel having a pair of side edges defining a width therebetween less than the length of said face panel and presenting a front face for engagement with the hardenable material and an opposite rear surface,
first and second spaced-apart support walls extending rearwardly from said face panel opposite said face and defining therebetween a channel, each of said walls presenting a rear margin located at a greater depth from said rear surface than the width of said face panel, each of said support walls including a lug projecting transversely therefrom and opposite said channel for abutment with an adjacent forming panel, and
an attachment member connected to said each of said support walls proximate said rear margin, each said attachment member including a leg extending transversely from said wall;
and
a fastener connecting respective first and second side rails of each of said first and second forming panels to respective ones of said first and second support walls with said face panel substantially coplanar with said respective first and second face plates and said lug on each of said first and second support walls positioned adjacent the respective first and second side rails of said first and second forming panels.

5 more elements

A stiffback for connection to an adjacent forming panel and for use as a building form for a hardenable material comprising:

an elongated face panel having a pair of side edges defining a width therebetween less than the length of said face panel and presenting a front face for engagement with the hardenable material and an opposite rear surface;
first and second spaced-apart elongated support walls each extending rearwardly from said rear surface of said face panel proximate said side edges and defining therebetween a channel, each of said support walls presenting a rear margin and having a depth defined between said rear surface and said rear margin, said support walls extending rearwardly a greater depth than said width of said face panel, each of said support walls including a lug projecting transversely therefrom and opposite said channel for abutment with an adjacent forming panel, each of said first and second support walls defining at least one hole therethrough located intermediate said rear surface and said rear margin and adapted to receive a fastener for connecting to an adjacent forming panel each of said holes being located rearwardly of said rear surface but relatively forwardly of said lug;
and
an attachment member connected to said each of said support walls proximate said rear margin, each said attachment member including a leg extending transversely from said wall.

1 more element

Dependencies are inferred from the claim text.