Apparatus for transferring loads between concrete slabs

• US 8,454,265 B2
• Filed: 04/20/2005
• Issued: 06/04/2013
• Est. Priority Date: 02/09/2005
• Status: Active Grant

• Current Assignee: Ez Form, Inc.
• Original Assignee: Ez Form, Inc.
• Inventors: Carroll, Michael E.
• Primary Examiner(s): Safavi, Michael
• Application Number:
  US11/109,781
• Publication Number:
  US 20060177267A1
• Time in Patent Office: 2,967 Days
• Field of Search: 404/47, 404/48, 404/51, 404/56, 404/57, 404/58, 404/59, 404/61, 404/64, 404/65, 404/66, 404/74, 404/87, 404/88, 404/89, 249/2, 249/3, 249/4, 249/5, 249/6, 249/7, 249/9, 249/96, 249/97
• US Class Current: 404/48
• CPC Class Codes: E01C 11/02 Arrangement or construction of joints for pavings consisting of prefabricated units E01C5/00; Methods of making joints machines therefor E01C23/02, E01C23/09; removable joint shutterings E01C23/021; Packing for joints sealing joints not restricted to road or airfield paving E04B1/68
• CPC Class Codes: E01C 11/14 Dowel assembly ; Design or construction of reinforcements in the area of joints coupling devices for prefabricated units E01C5/005; combined with characteristic packings E01C11/08 - E01C11/12; removable holders E01C23/045
• CPC Class Codes: E01C 2201/12 vertically interlocking
• CPC Class Codes: E01C 5/06 made of units with cement or like binders
• CPC Class Codes: E04C 3/30 Columns; Pillars; Struts not designed for end loading E04C3/02; posts, masts, as independent structures E04H12/00
• CPC Class Codes: E04F 15/14 Construction of joints, e.g. dividing strips E04F15/02005 takes precedence; sealing joints not restricted to flooring E04B1/68 , construction of joints in roads or airfields E01C11/02
• CPC Class Codes: E04G 11/36 for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings floors with lost forms E04B5/32
• CPC Class Codes: E04G 11/365 Stop-end shutterings end panels for walls E04G11/085

Abstract

An embodiment configured according to principles of the invention includes a plate defining a hexagon having a base parallel with joint between concrete slabs. Another embodiment includes a hexagon-shaped plate having a first portion and a second portion, and a form having a slot configured to closely receive the second portion.

Claims

1. Apparatus for transferring a load between a first concrete slab and a second concrete slab, defining a joint, comprising:

a plate defining a hexagon having a base parallel with the joint, said plate having a first portion and a second portion; and

an elastomer coating disposed on said first portion;

wherein;

said base and a side define an angle greater than or equal to 100°

; and

/or

said plate is configured to maximize material proximate to the joint; and

said elastomer coating slides relative to said plate, the first concrete slab or combinations thereof.

2. Apparatus of claim 1, wherein said plate has a thickness such that said plate yields at an amount that would be likely to cause failure in either of the first concrete slab or the second concrete slab.

3. Apparatus of claim 1, wherein said elastomer coating has a thickness of about 0.03 inches.