Abstract: A rubber preforming apparatus includes a direct drive motor unit slidably disposed on a base unit. The direct drive motor unit includes a drive motor and a deceleration mechanism. The deceleration mechanism includes an input shaft coupling and an output shaft coupling axially aligned with and co-rotatably connected to the input shaft coupling. A drive spindle of the drive motor is inserted into and rotating together with the input shaft coupling. An extruder casing is disposed adjacent to the output shaft coupling and has a squeezing space. An extruder screw is disposed in the squeezing space, and includes a screw shaft with one end coaxially inserted into and rotating together with the output shaft coupling.

Abstract: An electrosurgical hand piece comprises a handle having therein a handle passageway. A grip sleeve is provided on handle. A nozzle is disposed at one end of the handle. The outer side of the nozzle has a contacting portion. The nozzle has a nozzle passageway in communication with the handle passageway of the handle. The rear end of the nozzle has a first support portion. A support member is disposed in the nozzle passageway of the nozzle to form the second support portion of the nozzle. An electrode is fixed at the rear side by the first support portion of the nozzle to enable the electrode to extend into the nozzle passageway and supported at the front side thereof by the support member. So that, the electrode is supported by both the first support portion and the support member. Whereby the electrode is kept along the central line of the nozzle passageway of the nozzle to provide the surgeon can operate the hand piece precisely in the surgical operation.

Abstract: An electrosurgical hand piece comprises a handle having therein a handle passageway. A grip sleeve is provided on handle. A nozzle is disposed at one end of the handle. The outer side of the nozzle has a contacting portion. The nozzle has a nozzle passageway in communication with the handle passageway of the handle. The rear end of the nozzle has a first support portion. A support member is disposed in the nozzle passageway of the nozzle to form the second support portion of the nozzle. An electrode is fixed at the rear side by the first support portion of the nozzle to enable the electrode to extend into the nozzle passageway and supported at the front side thereof by the support member. So that, the electrode is supported by both the first support portion and the support member. Whereby the electrode is kept along the central line of the nozzle passageway of the nozzle to provide the surgeon can operate the hand piece precisely in the surgical operation.