Abstract: A gun-tube extension has (1) a body portion, (2) a first end configured to connect to an end cap of a gun tube, and (3) a second end configured to be connected to a sub-assembly. The gun-tube extension may rotate either by the operation of gravity on weights or by a motor. The gun-tube extension may include an orientation-detection device, such as an accelerometer, which may be part of an addressable switch. A ground for a gun tube or gun-tube extension may include a bow spring attached to and in electrical communication with the gun tube housing or the gun-tube extension housing. An end cap may include indexing indicia to orient a gun tube to a desired rotational position and/or may be structured to fit different diameter gun tubes.

Abstract: An intelligent lock, overlock, and lock system can be electrically controlled to open and close one or more locks. The lock, lock system, and method may function on a frequency selected to avoid cross talk, which permits numerous locks to function simultaneously on the same central system with little interruption or delay. A lock may be used as an overlock for an existing lock or be a primary lock and may include a pivoting engagement structure that engages a locking mechanism to provide added strength.

Abstract: A system includes a surface device, preferably positioned on a surface, a downhole device, and a wireline communications system. A downlink communication between the surface device and the downhole device occurs via Hopped Frequency Shift Keying (HFSK) voltage-modulated signals. An optional uplink communication between the downhole device and the surface device may occur via Frequency Shift Keying (FSK) current-modulated signals. The downhole device may comprise an addressable switch.

Abstract: An intelligent lock, overlock, and lock system can be electrically controlled to open and close one or more locks. The lock, lock system, and method may function on a frequency selected to avoid cross talk, which permits numerous locks to function simultaneously on the same central system with little interruption or delay. A lock may be used as an overlock for an existing lock or be a primary lock and may include a pivoting engagement structure that engages a locking mechanism to provide added strength.

Abstract: An intelligent lock, overlock, and lock system can be electrically controlled to open and close one or more locks. The lock, lock system, and method may function on a frequency selected to avoid cross talk, which permits numerous locks to function simultaneously on the same central system with little interruption or delay. A lock may be used as an overlock for an existing lock or be a primary lock and may include a pivoting engagement structure that engages a locking mechanism to provide added strength.

Abstract: An intelligent lock, overlock, and lock system can be electrically controlled to open and close one or more locks. The lock, lock system, and method may function on a frequency selected to avoid cross talk, which permits numerous locks to function simultaneously on the same central system with little interruption or delay. A lock may be used as an overlock for an existing lock or be a primary lock and may include a pivoting engagement structure that engages a locking mechanism to provide added strength.

Abstract: A singulating conveyor system that consists of conveyor sets comprising driven tapered rollers oriented in a herringbone pattern about the centerline of the conveying surface which is capable of sorting a continuous flow of randomly oriented and sorted packages into a single file line of packages along the centerline of the conveyor surface.

Abstract: A singulating conveyor system that consists of conveyor sets comprising driven tapered rollers oriented in a herringbone pattern about the centerline of the conveying surface which is capable of sorting a continuous flow of randomly oriented and sorted packages into a single file line of packages along the centerline of the conveyor surface.

Abstract: A robotic wafer handler has first and second arms pivotally connected at a swing point to operate in a plane. Each arm is independently drivable through greater than 360.degree. of rotation in the plane. The wafer handler may also include mechanisms for adjusting the plane of rotation, i.e., for providing lift and tilt.

Abstract: A process chamber configurable for the execution of discrete subprocesses in a substrate coating process such as photolithography. Two vertically staggered rings disposed within the process chamber channel a flow of gas through the chamber and retain fluent chemical within the process environment. A replaceable liner further enables reconfiguration of the chamber. The chamber is used for low-velocity dispensing of fluent process chemical onto the substrate surface with a laminar exhaust gas flow through ventilation passages formed about the rings. The chamber is also used during high-velocity spinning of the substrate for even process chemical distribution in a solvent saturated atmosphere. The ventilation passages enable high exhaust flow through the chamber while minimizing the direct impingement of exhaust air on the substrate.