US 8,984,831 B1Granted

Monolithic concrete pour for safe room

OwnerWendell Westinventor

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Abstract

A framework and method of forming a single pour concrete form for walls and ceiling of a safe room. The walls secure to a concrete slab with concrete anchors. C-channel ceiling joists attach on top of vertical metal wall studs to which plywood is secured on each side to define walls forms. A metal web blocking piece attaches between adjacent ceiling joists and is spaced apart from the ends of the ceiling joist to form concrete flow channels between the ceiling and walls. A plywood strip seals between the metal web blocking pieces and the plywood on the interior walls to funnels concrete into the wall forms. Corrugated metal decking is secured to the top of the ceiling joists creating a ceiling form that does not extend to the plywood on the exterior walls, thus providing access openings for cement to flow from the ceiling form into the wall forms.

Claims9

Dependent claims

A concrete form for creating a safe room by monolithic concrete pour comprising:

c-channel ceiling joists secure on to of vertical wall studs,
a skin secured to either side of the wall studs to form wall forms,
corrugated metal decking secured to the top of the ceiling joists to create an open top ceiling form above the decking into which concrete will be poured,
a web blocking piece attached between adjacent ceiling joists and spaced apart from the ends of the ceiling joists on opposite ends of the ceiling joists to form channels between the ceiling form and the wall forms through which concrete will flow from the ceiling form into the wall forms,
a c-channel cut to length to secure between adjacent c-channel ceiling joists,
a first end of the c-channel having notches cut out for receiving lips of one of the c-channel ceiling joists, upper and lower tabs adjacent to the notches for securing the first end to one of the c-channel ceiling joists, and
an opposite second end of the c-channel clipped on top and bottom so that the c-channel is bent backward at a right angle to form a lip with upper and lower tabs for securing the second end to one of the c-channel ceiling joists.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/174,079Filed 6 Feb 2014
Granted: 24 Mar 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

E04H 9/00
Buildings, groups of buildings or shelters adapted to withstand or provide protection
E04B 1/161
Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as…: with…
E04H 9/06
Against air-raid or other war-like actions: structures arranged in or forming part of buildings
E04H 9/10
Against air-raid or other war-like actions: independent shelters; Arrangement of independent splinter-proof walls