A mold and method for manufacturing interlocking concrete blocks. The mold comprises a mold box, comprising two side walls joined to end walls to define a mold cavity, a top face, and a substantially open bottom face. Top insert members are configured to define a space between adjacent blocks, for forming a portion of the transverse profile of the top surface of one block or a portion of the transverse profile of the bottom surface of an adjacent block, or both. A removable draw plate for closing the bottom of the mold box comprises a generally planar floor and bottom insert members configured to define a space between adjacent blocks, for forming a remaining portion of the transverse profile of the top surface of one block or a remaining portion of the transverse profile of the bottom surface of an adjacent block, or both.

A pocket former includes a pocket former body and a keyway former. The pocket former is adapted to form a void in a concrete member allowing access to the stressing end of a post-tensioning tendon. The keyway former is adapted to form a keyway in the concrete to allow grout to be more securely retained in the void.

A pocket former includes a pocket former body and a keyway former. The pocket former is adapted to form a void in a concrete member allowing access to the stressing end of a post-tensioning tendon. The keyway former is adapted to form a keyway in the concrete to allow grout to be more securely retained in the void.

An arthroscopic or other surgical cutter has features which facilitate fabrication by ceramic molding. The arthroscopic cutter includes a cutter body having a longitudinal axis and a window, an interior channel, and a plurality of cutting edges extending radially outwardly from an outer surface thereof. The features include non-helical, longitudinally aligned cutting edges, controlled thicknesses of the cutting edges, controlled heights of the cutting edges, controlled areas of the windows, controlled diameters of the internal channels, controlled rake angles of the cutting edges, and other parameters.

An arthroscopic or other surgical cutter has features which facilitate fabrication by ceramic molding. The arthroscopic cutter includes a cutter body having a longitudinal axis and a window, an interior channel, and a plurality of cutting edges extending radially outwardly from an outer surface thereof. The features include non-helical, longitudinally aligned cutting edges, controlled thicknesses of the cutting edges, controlled heights of the cutting edges, controlled areas of the windows, controlled diameters of the internal channels, controlled rake angles of the cutting edges, and other parameters.

A construction apparatus for forming modular construction components is disclosed. The construction apparatus comprises a first shell piece and a second shell piece that define an interior chamber defining a space for receiving a moldable material. The construction apparatus further comprises a separation device to move the first shell piece and the second shell piece from a closed configuration to an open configuration. The construction apparatus further comprises one or more cores within the interior chamber, one or more pins extending within the interior chamber, and one or more retaining plates for retaining the pins on the first shell piece. The interior chamber may be filled with the moldable material in the closed configuration and the moldable material may be cured. The construction apparatus may be shifted to the open configuration by the separation device and the pins and retaining plates may be used to extract the molded block from the first shell piece and/or second shell piece.

A construction apparatus for forming modular construction components is disclosed. The construction apparatus comprises a first shell piece and a second shell piece that define an interior chamber defining a space for receiving a moldable material. The construction apparatus further comprises a separation device to move the first shell piece and the second shell piece from a closed configuration to an open configuration. The construction apparatus further comprises one or more cores within the interior chamber, one or more pins extending within the interior chamber, and one or more retaining plates for retaining the pins on the first shell piece. The interior chamber may be filled with the moldable material in the closed configuration and the moldable material may be cured. The construction apparatus may be shifted to the open configuration by the separation device and the pins and retaining plates may be used to extract the molded block from the first shell piece and/or second shell piece.

A mandrel includes a mandrel body upon which to build ceramic matrix composite (CMC) yarns to provide a shear tube for building up an airfoil from CMC fabric layers. The mandrel body formed of at least two mandrel parts interfitting to define a desired shape for the shear tube, and such that after formation of the airfoil the at least two parts of the mandrel body can be separately removed from the shear tube in order to facilitate removal. A method is also disclosed.

A pottery molding tool for creating a vessel, and a method of using the tool, are disclosed. The tool has a molding body having a first end and a second end and a generally circular cross-section between the first end and the second end. The body having a first diameter at the first end and a second diameter at the second end which is equal to or larger than the first diameter. A handle is formed at the second end and a handle base formed on the handle. The handle base configured to securely support the molding body and handle when the base is resting on a surface. The method includes forming the vessel on the molding body, rotating the tool to rest on the handle base, and removing the vessel formed on the molding body.

A pottery molding tool for creating a vessel, and a method of using the tool, are disclosed. The tool has a molding body having a first end and a second end and a generally circular cross-section between the first end and the second end. The body having a first diameter at the first end and a second diameter at the second end which is equal to or larger than the first diameter. A handle is formed at the second end and a handle base formed on the handle. The handle base configured to securely support the molding body and handle when the base is resting on a surface. The method includes forming the vessel on the molding body, rotating the tool to rest on the handle base, and removing the vessel formed on the molding body.