Abstract: A valve assembly and chuck system for a gas sampling apparatus. In one embodiment, the apparatus may comprise a valve assembly comprising a first core valve, wherein a pin of the first core valve is biased to a first closed position; a chuck system comprising a second core valve, wherein a pin of the second core valve is biased to a first closed position; and a transfer tube housed within the chuck system, wherein the transfer tube provides a means of displacing the pins of the first and second core valves to a second open position; wherein the transfer tube isolates a fluid communication path between the first and second core valves. In an alternate embodiment, the chuck system may not comprise a second core valve, and the transfer tube may isolate a fluid communication path between the first core valve and the chuck system.

Abstract: A valve assembly for a gas sampling apparatus. In one embodiment, the apparatus may comprise a valve body; a core valve, wherein a pin of the core valve the core valve is biased to a first, closed position; and a core valve carrier, wherein a body of the core valve carrier is biased to a first, closed position; wherein the pin of the core valve and the body of the core valve carrier may individually be displaced from their biased, first closed positions.

Abstract: A valve assembly for a gas sampling apparatus. In one embodiment, the apparatus may comprise a valve body; a core valve, wherein a pin of the core valve the core valve is biased to a first, closed position; and a core valve carrier, wherein a body of the core valve carrier is biased to a first, closed position; wherein the pin of the core valve and the body of the core valve carrier may individually be displaced from their biased, first closed positions.

Abstract: A valve assembly and chuck system for a gas sampling apparatus. In one embodiment, the apparatus may comprise a valve assembly comprising a first core valve, wherein a pin of the first core valve is biased to a first closed position; a chuck system comprising a second core valve, wherein a pin of the second core valve is biased to a first closed position; and a transfer tube housed within the chuck system, wherein the transfer tube provides a means of displacing the pins of the first and second core valves to a second open position; wherein the transfer tube isolates a fluid communication path between the first and second core valves. In an alternate embodiment, the chuck system may not comprise a second core valve, and the transfer tube may isolate a fluid communication path between the first core valve and the chuck system.

Abstract: A valve assembly and chuck system for a gas sampling apparatus. In one embodiment, the apparatus may comprise a valve assembly comprising a first core valve, wherein a pin of the first core valve is biased to a first closed position; a chuck system comprising a second core valve, wherein a pin of the second core valve is biased to a first closed position; and a transfer tube housed within the chuck system, wherein the transfer tube provides a means of displacing the pins of the first and second core valves to a second open position; wherein the transfer tube isolates a fluid communication path between the first and second core valves. In an alternate embodiment, the chuck system may not comprise a second core valve, and the transfer tube may isolate a fluid communication path between the first core valve and the chuck system.

Abstract: A valve assembly for a gas sampling apparatus. In one embodiment, the apparatus may comprise a valve body; a core valve, wherein a pin of the core valve the core valve is biased to a first, closed position; and a core valve carrier, wherein a body of the core valve carrier is biased to a first, closed position; wherein the pin of the core valve and the body of the core valve carrier may individually be displaced from their biased, first closed positions.

Abstract: A blast gate to control the application of vacuum pressure to a particulate generating machine so that particulate may be drawn away from the machine and isolated in a vacuum container. The blast gate may be opened when either a vacuum or particulate generating machine is switched on. The blast gate is designed to be inserted in a duct leading from the vacuum to the particulate generating machine. The electromechanical design allows two switches to be activated by a mechanical rotating arm. The switches respectively allow the gate to be held in the open position or in the closed position as well as activating the mechanical arm whereby the gate is moved to the open or closed position.

Abstract: Disclosed is a preferred flashlight device configured for potential use with another item such as a firearm or in activities where some manual dexterity of the hand grasping the flashlight is required. Preferred devices include downwardly-extending light and handle portions, interconnected by a linking member. Preferred devices include movable connections between the light and handle members and the linking member, so that the direction of a beam emanating from the flashlight can be optimized to an activity undertaken while holding the flashlight, for example during a two-handed pistol firing position.

Abstract: Disclosed is a preferred flashlight device configured for potential use with another item such as a firearm or in activities where some manual dexterity of the hand grasping the flashlight is required. Preferred devices include downwardly-extending light and handle portions, interconnected by a linking member. Preferred devices include movable connections between the light and handle members and the linking member, so that the direction of a beam emanating from the flashlight can be optimized to an activity undertaken while holding the flashlight, for example during a two-handed pistol firing position.

Abstract: A continuous sample detector includes a sample chamber, a cell body and one or more standard sources of radiation. Mounted in the sample chamber, the cell body has a cell, a coil of transparent tubing through which the sample solution continuously passes during the measurement. The standard source of radiation is mounted adjacent to the cell body. The detector also includes a sensor mounted and arranged proximate the cell and the standard source to encounter relative reciprocation for allowing the sensor to alternately sense radiation of the cell and the standard source. The detector is operated by connecting sample lines to the cell body. The sensor and cell are then positioned to detect radiation from the cell with the sensor, while a sample flow is pumped through the cell. The system is calibrated by disposing the sensor and the standard source to detect radiation from the standard source with the sensor, without disconnecting the sample lines from the cell body.