Abstract: A collet holder which provides heated gas directly to and around the collet head, and prevents oxygen entrainment. The collet holder is characterized by three concentric sections. The first section receives the cartridge heater and holds the collet, providing it with a vacuum. The second section surrounds the forward portion of the first section and creates the gas turbulent flow heat exchanger. The collet extends through a discharge orifice by which the heated gas is applied to the collet head. Finally, a third shield section encases the collet holder and minimizes heat loss.

Abstract: A security stand having a horizontal mounting surface, first and second sides of a width lesser than the depth of the horizontal mounting surface, a top surface extending between the two sides and a lipped shelf extending between the first and second sides and between the horizontal mounting surface and the top surface. The shelf with the lipped edge is mounted in a secure fashion such that equipment mounted or resting therein cannot be removed without removing the shelf. The horizontal mounting surface has means for attaching a computer keyboard prior to mounting the horizontal mounting surface onto a table such that the keyboard may not be removed. Additionally, secure mounting means may be provided in the top surface for mounting a Cathode Ray Tube before insertion of the lipped shelf and equipment therein.

Abstract: An oil well blow out preventer hose coupling capable of withstanding blow out conditions. The coupling is characterized by a tubing having a ring connected to one end to which a nipple is attached to receive a corresponding coupling. The second end of the tubing has a stem attached for receiving the blow out preventer hose which is fastened to the stem. This entire structure is then wrapped with insulation and provided with an outside armored covering extending from the ring back over the tubing, stem and blow out preventer hose.

Abstract: An absorber tower maintenance isolation system for isolating an absorber tower while maintaining a steam generation plant in operation. An inlet blank-off plate and outlet blank-off plate cooperate with louver dampers in the inlet and outlet ducts to permit shut down or start up of an absorber tower. Closure devices and locking devices act to keep the blank-off plates in position. Equalization devices and duct vent holes allow release to the atmosphere. Further, access is provided to the absorber tower inlet and outlet ducts.

Abstract: An absorber tower maintenance isolation system for isolating an absorber tower while maintaining a steam generation plant in operation. An inlet blank-off plate and outlet blank-off plate cooperate with louver dampers in the inlet and outlet ducts to permit shut down or start up of an absorber tower. Closure devices and locking devices act to keep the blank-off plates in position. Equalization devices and duct vent holes allow release to the atmosphere. Further, access is provided to the absorber tower inlet and outlet ducts.

Abstract: A method for making a semiconductor device is described in which polycrystalline silicon is vacuum deposited and then converted to silicon dioxide thereby providing a number of advantages over direct deposition of silicon dioxide. The method has particular applicability to isoplanar MOSFET integrated circuit manufacturing.

Abstract: A method for making a semiconductor device is described in which polycrystalline silicon is vacuum deposited and then converted to silicon dioxide thereby providing a number of advantages over direct deposition of silicon dioxide. The method has particular applicability to isoplanar MOSFET integrated circuit manufacturing.