Abstract: A chain of custody tracking system. The chain of custody tracking system can include a container, the container having a bottom at a lower portion and at least one sidewall extending from the bottom to a peripheral edge at an upper portion, the peripheral edge defining an opening. The upper portion of the container sidewall can have a channel having a channel height, the channel height being defined by a first extension of the sidewall and a second extension of the sidewall. The first extension of the sidewall can be a rib, the rib having a sloped surface that extends outwardly from the sidewall. the chain of custody tracking system has a first condition wherein a first lid is removably coupled to the container and removably coupled to a first indicator, and a second condition wherein the first lid is uncoupled from the first indicator.

Abstract: An electric switch cleaning apparatus and method. The apparatus includes a transformer adapted to deliver AC voltage less than what is lethal to a human, a voltage-providing component for providing AC voltage to the transformer, connectors for temporarily making electrical connections to an electrical switch, a current-conducting component coupled to the transformer for carrying AC current from the transformer to the connectors, and a device associated with the current-conducting component for providing a visual indication that AC current is flowing through the switch. In use, the electrical connectors are connected across the switch, power is delivered with the voltage-providing component to the transformer so that the current-carrying component delivers AC current from the transformer to the connectors and through the switch, and the switch is cycled until AC current flows through the switch.

Abstract: A piston, having a first side subject to major thrust loading and a second side subject to minor thrust loading, is provided. The piston has a crown portion and a first and second pin boss portion depending therefrom. An axially extending pin bore is provided within the first and second pin boss portions. A first axially extending slot is provided within the piston pin bore on the first side. Additionally, a second axially extending slot is provided within the piston pin bore on the second side of the piston. The second axially extending slot is positioned closer to the crown portion than the first axially extending slot. The first and second axially extending slots are generally concave in shape.

Abstract: An improved process measurement system is disclosed which provides automatic signal evaluation and transfer in connection with redundant signals generated from a common data source over two input channels and one output channel. The two input channels are monitored by a series of three comparators which compare real time values of the signals on the two channels, and as well, a real time and delay value from each channel.

Abstract: Method and apparatus for producing a detailed plan to a known scale showing an optimized fit of material of predetermined dimensional characteristics into a given area. The invention finds utility in the field of carpet installation. After the perimeter of the area to be carpeted is measured, an array of signals is produced and stored to identify the coordinates of the area. A detailed plan, which is produced by interaction between an operator and the plotting system, shows the area outline, all seam locations, and the length of each strip needed to cover the given area.