Abstract: There is disclosed a method and apparatus for coating an electromagnetic coil, particularly stator coils for an electric motor, with an insulating catalyzed resin material. The catalyzed resin material is a two component material comprising an epoxy resin and a catalyst. The catalyzed resin material is a free flowing liquid at a first temperature and begins to cure rapidly at a second elevated temperature. The stator coils are first heated by supplying current to the stator coils to raise the temperature of the stator coils to the first temperature. The free flowing liquid catalyzed resin material is dispensed through nozzles onto the stator coils as the stator coils and the nozzles move relative to each other. After the liquid catalyzed resin material has been dispensed in a predetermined amount, at predetermined locations, for predetermined times, the catalyzed resin material is allowed to penetrate the stator coils.

Abstract: There is disclosed a method and apparatus for coating an electromagnetic coil, particularly stator coils for an electric motor, with an insulating catalyzed resin material. The catalyzed resin material is a two component material comprising an epoxy resin and a catalyst. The catalyzed resin material is a free flowing liquid at a first temperature and begins to cure rapidly at a second elevated temperature. The stator coils are first heated by supplying current to the stator coils to raise the temperature of the stator coils to the first temperature. The free flowing liquid catalyzed resin material is dispensed through nozzles onto the stator coils as the stator coils and the nozzles move relative to each other. After the liquid catalyzed resin material has been dispensed in a predetermined amount, at predetermined locations, for predetermined times, the catalyzed resin material is allowed to penetrate the stator coils.

Abstract: Ripper apparatus having interchangeable tool bar means whereby a tool bar having a single ripper blade may be used with the apparatus or a tool bar having plural ripper blades may be used with the apparatus, whereby the tool bar supporting elements may be used for the apparatus in either form.

Abstract: Ripper apparatus of the type wherein a ripper blade is releasably fixed in place through a shank pocket slot of a pivotal tool bar, wherein a replaceable wear plate forms the front side of the shank pocket to reduce wear of the shank pocket. The tool bar may be provided in several forms.