Patent application title: Concrete armored joint form that provides one step installation and thermal transfer prevention as well as seating for joint filler
Paul Allison O'Connor (Weatherford, TX, US)
IPC8 Class: AE04B1682FI
Class name: Relatively yieldable preformed separator (i.e., expansion joint) exposed separator between (1) set or cured concrete, (2) metal, wood, plastic, etc., or (3) prefabricated components with embedded anchor means
Publication date: 2012-05-24
Patent application number: 20120124929
The objective of this invention is to provide ease of application for
steel armored joints used in industrial concrete floor construction. It
provides one step simple installation. Eliminates thermal transfer in low
temperature environment to a higher temperature environment through the
concrete slab. Provides simple elevation adjustment. Provides a substrate
for joint filler compression. Eliminates the need for wood forms and
field welding that produces waste. Elevation adjustment and the ease
thereof are achieved by vertical slots cut in the plastic upright. The
neoprene bolts are to be tightened when the steel is at the desired
elevation. Two part armored joints separate as the concrete contracts
during the curing process. Then the joint filler product is applied.
10. The concrete armored joint form is comprised of a one step, set in place and leave in place concrete armored joint form that provides thermal transfer prevention along with a seating system which thereby captures the joint fill material. Furthermore, the concrete form is comprised of an adjustability of the steel armor joint to compensate for undulations in the grade or the insulated floor materials.
11. The concrete armored joint form according to claim 10, is comprised of two pieces, including a plastic composite base attached to a plastic upright form and steel armor joint components fitted with headed studs, to provide for anchoring in the concrete slab. The armor joint steel is attached to the plastic upright form which allows for a one step setting and a leave in place installation.
12. According to claim 11, the plastic upright component of the concrete armored joint form provides for a thermal break property, thereby eliminating any thermal transfer between concrete floor slabs.
13. The plastic upright component according to claim 12 of the concrete armored joint form is grooved on the top horizontal surface to provide a seating base for the joint fill material.
14. The concrete armored joint plastic upright component according to claim 13, is fitted with armored joint steel and is attached to the plastic upright component by means of comprisable neoprene bolts and nuts.
15. According to claim 10, the armored joint steel is fitted with attached jack bolts which therefore enables a vertical adjustability feature.
CROSS-REFERENCE TO ALL RELATED APPLICATIONS
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STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
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NAMES OF PARTIES TO ADJOINT RESEARCH AGREEMENT
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 REFERENCE TO SEQUENCE LISTING, A TABLE, OR COMPUTER PROGRAM LISTING COMPACT DISC APPENDIX
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BACKGROUND OF INVENTION
 Due to the required labor and material required to form and place an armored joint with wooden forms in a concrete floor this invention eliminates these steps by providing a one step set and alignment of the armor joint. The form is left in place and requires no additional labor to remove conventional wooden forming materials. This invention also prevents thermal transfer for temperature differential between floor slabs, by example if the conditions of installation is required for a specific room operating at a temperature of (-20 degrees) adjoining a room separated by a wall but has a door way in said wall for conveyance of product and operating at +35 degrees this invention provides a total thermal break between the two slabs.
 Therefore eliminating the thermal transfer and migration of the colder temperature to the warmer.
 This also provides a "seat" for the joint filler thereby solving the industry issue of joint fill failure in the armor joint. This feature minimizes the continuing floor maintenance expenses as well as accelerated fork lift maintenance and replacement.
BRIEF SUMMARY OF INVENTION
 This invention eliminates wooden forming labor and material that is required for the installation of conventional steel armor joints. This invention is a one step, set in place and leave in place product. The armor joint is fully adjustable to compensate for undulations in the substrate or if used on an insulated freezer floor. The product provide a complete thermal break at the door locations between temperature differentials in defined rooms, such as a freezer floor to a dock area. The base and upright provide a "seat" for the joint filler that will be applied after the floors have cured and the armor joint separates, thus providing a permanent base for the joint filler, therefore reducing the need to reapply the joint filler.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING
 Particular embodiments of the invention will now be described with reference to the accompanying drawing wherein:
 FIG. 1 shows the base plate which is a 3/8'' thick HDPE Plastic sheet to which the piece 2 is attached.
 FIG. 2 shows an isometric view of the piece 2 which is a plastic plank with 3 each slotted holes designated 12.
 FIG. 3 shows the screw used for attaching piece 1 and piece 2 together.
 FIG. 4 shows an isometric view of the assembled invention. Whereas piece 1 is attached to piece 2 by means of piece 3 as referenced in
 FIG. 3 This shows the armor joint pieces 7 and 11 in the assembled position. This also shows the pieces 8 and 9 which are used to adjust and stabilize the armor joint. The armor joint is shown with piece 4 attached to the pieces 7 and 11 at a 30 degree angle.
 FIG. 5 shows the components of the invention piece numbers 4, 5, 6, 7, 8, 9, 10, and 11.
DETAILED DESCRIPTION OF THE INVENTION
 Referring to the drawing FIG. 1 this designates the plastic base piece 1 to which will provide a support base for stabilization and the deterrence of thermal transfer from slab to slab to which the piece 2 as depicted in FIG. 2 shall be attached. This is accomplished by use of piece 3, a self tapping, self drilling screw, as depicted in FIG. 3. Pieces 7 and 11 are then attached to piece 2 utilizing neoprene bolts, nuts and washers, pieces 5, 6, and 10 as depicted on FIG. 5, by inserting 10 thru the holes 13 in the pieces 7 and 11 and holes 13 in piece 2 as depicted FIG. 2 and FIG. 4. The neoprene bolts are designed to comprise during the concrete curing process and allow the armor joints to separate as the concrete floor cures. Pieces 5 and 6 are then used to secure pieces 7 and 11 to piece 2.
 Pieces 7 and 11 are fabricated in an assembled piece by attaching a stub at 30 degrees as depicted on FIG. 4. by welding. Piece 8 is a threaded coupling which is also attached by welding. Piece 9 is a threaded bolt which is threaded thru piece 8 and provides an adjustment mechanism for height adjustment of pieces 7 and 11. By turning piece 9 either in the up or down direction height adjustment is achieved to provide an even and level plane of top edges of piece 7 and 11.
 The invention is assembled and set in place as one assembly. The adjustment of the height of the top plane of pieces 7 and 11 are achieved by setting these components to required elevation via a previously set benchmark elevation for the finished floor slab.
Patent applications in class With embedded anchor means
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