...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 8042786 | Locking system having mounting block with mounting arm and slide member for securing concrete form panels A locking system 24 for securing adjacent concrete form panels 20a, 20b together during assembly of a concrete form 22 is disclosed. The locking system 24 includes a mounting block 50 which is removably attacha... | 10/25/2011 |
| 7887735 | Method of forming a void in a mass of concrete using a dowel void former A void former or dowel sleeve adapted to be encapsulated in a hardened mass of concrete, which is collapsible upon the application of a tensile force longitudinally thereof to remove the void former from the concrete and provide a void for a load transferring dowel.... | 02/15/2011 |
| 7775010 | Slab bolster coupling In a first aspect, a plurality of slab bolster elements, each including a bolster frame member having a male connector disposed on a first end and a female connector disposed on an opposite end, with the male connector including first and second outer prongs for eng... | 08/17/2010 |
| 7497059 | Multi-level post tension cable support chair and method of use A multi-level chair for supporting a concrete reinforcement cable at a fixed height from the bottom of a concrete form is provided. The multi-level chair comprises a body having a plurality of receptacles at different heights. Each of the receptacles is adapted to r... | 03/03/2009 |
| 7487949 | Concrete dowel void former A void former or dowel sleeve adapted to be encapsulated in a hardened mass of concrete, which is collapsible upon the application of a tensile force longitudinally thereof to remove the void former from the concrete and provide a void for a load transferring dowel.... | 02/10/2009 |
| 7404691 | Dowel bar assembly with snap fit side frames An apparatus for combining adjacent concrete slabs including a dowel, an end cap, and a side frame. The end cap has a hood defining a curved channel extending at least partially around a dowel receiving end. The side frame has at least one wire received in the curve... | 07/29/2008 |
| 7314334 | Dowel bar assembly with snap fit side frames An apparatus for combining adjacent concrete slabs including a dowel, an end cap, and a side frame. The end cap has a hood defining a curved channel extending at least partially around a dowel receiving end. The side frame has at least one wire received in the curve... | 01/01/2008 |
| 7222460 | Cover for a concrete construction A cover for a concrete construction has a pair of anchor-engaging members extending from a disk-shaped body. The anchor-engaging members include fins which are configured to engage an anchor formed into a recess of a concrete block or wall to cover the recess. The c... | 05/29/2007 |
| 7051988 | Brace for concrete forms A brace for securing concrete form members to a casting surface. First and second leg members are spaced to form an angle. A bridging member extends between opposing ends of the leg members and a strut extends between the joined ends of the leg members and the bridg... | 05/30/2006 |
| 7028443 | Wire mesh chair A chair for supporting wire mesh while pouring concrete slabs. The chair has a generally tapered, hollow body with a receiving area for fixedly retaining the wire mesh. The receiving area includes walls extending upwardly between notches, with the walls defining pas... | 04/18/2006 |
| 7004443 | Concrete void former A void former comprises a core assembly having at least two body members. The body members are removably coupled together to define the desired shape of a void to be formed in a concrete slab. After the void has been formed in the concrete slab, the body members may... | 02/28/2006 |
| 6865859 | Conversion corner chamfer for form work A building member forming apparatus having panels and a conversion corner bracket. The panels are typically dimensioned in metric units. The conversion corner bracket can include a leg having a predetermined width and a body configured to chamfer a building member. ... | 03/15/2005 |
| 6857235 | Protective cover for reinforcing bar A protective cover for a reinforcing bar including a collar structure defining a perimeter portion and having an open end for receiving the end of a rebar. A cap portion is connected to the collar structure oriented substantially perpendicularly to the collar struct... | 02/22/2005 |
| 6761007 | Structural tie shear connector for concrete and insulation composite panels A structural tie shear connector for use with a concrete and insulation composite panel. The panel has a first concrete wythe, a second concrete wythe, and an insulation layer interposed between the first and second concrete wythes. The connector has two sides exten... | 07/13/2004 |
| 6755385 | Concrete void former and cooperating cover An anchor positioning assembly for use in casting a concrete panel. The anchor positioning assembly includes a void former, a cooperating cover and an anchor. The assembly may further include an adaptor insert for receiving anchors of variable shapes and sizes. The ... | 06/29/2004 |
| 6729079 | Concrete anchor One preferred embodiment of an improved concrete anchor designed in accordance with the present invention for embedment in a concrete panel or the like includes an elongated bar having substantially flat parallel faces, an inner end disposed within the panel, an out... | 05/04/2004 |
| 6647674 | Erection anchor for concrete panel An erection anchor having a forged unitary body that includes a substantially cylindrical shank with one end embedable in a concrete panel and an opposite end extending into a recess in an end of the concrete panel. The forged unitary body also has a subs... | 11/18/2003 |
| 6460824 | Concrete void former and cooperating cover An anchor positioning assembly for use in casting a concrete panel. The anchor positioning assembly includes a void former, a cooperating cover and an anchor. The assembly may further include an adaptor insert for receiving anchors of variable shapes and ... | 10/08/2002 |