A system of retaining wall blocks, a method of assembling a retaining wall block assembly, and a mold for manufacturing retaining wall blocks having adjustable engagement configurations.

An apparatus and method for manufacturing masonry blocks using a face mix shuttle comprising an angled shovel for depositing a controllable amount of face mix onto a surface of a masonry block.

A molded concrete U-wall construction block including a molded concrete U-wall construction block structure formed from cured concrete poured about a block cage made from reinforcing material during a block manufacturing process. The block cage includes an open aperture formed in each of its stem reinforcing portions. During the block manufacturing process, the first and second support members of a support mechanism are inserted within the open apertures formed in the stem reinforcing sections of the block cage, and cooperate with the open apertures of the block cage so as to (i) support the block cage when being loaded into a block manufacturing machine, (ii) define central apertures molded in each stem portion of the concrete U-wall construction block structure, and (iii) lift the molded concrete U-wall construction block when being unloaded from the machine.

A molded concrete U-wall construction block including a molded concrete U-wall construction block structure formed from cured concrete poured about a block cage made from reinforcing material during a block manufacturing process. The block cage includes an open aperture formed in each of its stem reinforcing portions. During the block manufacturing process, the first and second support members of a support mechanism are inserted within the open apertures formed in the stem reinforcing sections of the block cage, and cooperate with the open apertures of the block cage so as to (i) support the block cage when being loaded into a block manufacturing machine, (ii) define central apertures molded in each stem portion of the concrete U-wall construction block structure, and (iii) lift the molded concrete U-wall construction block when being unloaded from the machine.

A system of retaining wall blocks, a method of assembling a retaining wall block assembly, and a mold for manufacturing retaining wall blocks having adjustable engagement configurations.

A process for forming an artificial reef includes forming a form having a geometric shape, applying at least one blockout onto a surface of the form such that the blockout extends outwardly of the surface of the form, applying a sprayable concrete over the form and over a portion of the blockout, curing the sprayable concrete on the form for a period of time such that the sprayable concrete adheres to the blockout, and removing the cured sprayable concrete and the blockout from the surface of the form. The blockout is of a cast concrete material such as a cinder block. The blockout has openings therein so as to open to an interior of the artificial reef.

A process for forming an artificial reef includes forming a form having a geometric shape, applying at least one blockout onto a surface of the form such that the blockout extends outwardly of the surface of the form, applying a sprayable concrete over the form and over a portion of the blockout, curing the sprayable concrete on the form for a period of time such that the sprayable concrete adheres to the blockout, and removing the cured sprayable concrete and the blockout from the surface of the form. The blockout is of a cast concrete material such as a cinder block. The blockout has openings therein so as to open to an interior of the artificial reef.

An apparatus and method for manufacturing masonry blocks using a face mix shuttle comprising an angled shovel for depositing a controllable amount of face mix onto a surface of a masonry block.

A concrete test cylinder mold formed of expandable polystyrene and which is used to form geometrically uniform concrete test cylinders that accurately reflect the structural properties of the concrete mix used to form the test cylinders despite fluctuations in temperature to which the test cylinder may be exposed during formation within the mold. The mold is constructed and configured such that compression testing of the concrete test cylinder may be conducted while the cylinder is still in the mold. A specially designed heat shield may be used in unison with the concrete test mold to form, at least in part, a system by which heat further may be retained within the system during formation of the concrete test cylinder.

An acetabular reamer of the type used in total hip arthroplasty (THA) to prepare a patient's acetabulum for implantation of a hip prosthesis is described. The acetabular reamer consists of a substantially hemispherical cup having a plurality of cutter-hole combinations aligned along one or more loxodromes on the surface of the hemispherical cup. The reamer, complete with integral back plate for connecting the reamer to a driver, is produced to net shape using a molding and sinterwelding technique.