Apparatus and method for protecting lined concrete pipe...

Apparatus for actuating inner and outer forms of a concrete pipe

Apparatus for casting

Apparatus for forming a concrete feed bunk

Apparatus for forming a pilfer proof container closure

Apparatus for forming inverts and manhole assemblies and the lik

Apparatus for making unitary casing

Apparatus for molding dynamically balanced fans

Apparatus for the production of a monolithic manhole base

Building construction system

Casting apparatus with three-part core

Collapsible mold core

Concrete casting sliding corner system

Core centered mold for hollow stackable plastic products

Distensible elastomeric molds

Dummy lens for molded-to-shape eyeglass frame fronts and molds t

Flexible mold including rigid encapsulated mandrel

Injection mold for making a synthetic thermoplastic article havi

Interlocking mold assembly

Invert former for manhole base section