Abstract: A post sleeve installation device includes a standing structure, a structure coupled to the standing structure and configured to support a post sleeve below the standing structure, and a mechanism configured to enable selective translation of the support structure in three axes and rotation around a vertical axis. Locks are provided to lock the post sleeve at a selected position and orientation relative to the standing structure. A beam extending from one installation device to another measures or controls the relative spacing, orientation, and elevation of associated post sleeves, and related data is collected for off-site manufacture of fence panels. Additionally, a repository is provided, to which the data is transmitted for retention, and from which the data can be retrieved for manufacture of replacement fence panels.

Abstract: A folding workbench includes a rectangular benchtop frame and first and second leg assemblies pivotably coupled to the frame. Each leg assembly includes first and second legs coupled to respective side rails of the frame, the leg assembly rotatable between a folded position, in which the leg assembly lies substantially within the benchtop frame, and an open position in which the leg assembly extends from the benchtop frame at about a 90 degree angle. Each leg assembly includes a shelf bracket extending between the first and second legs, with a notch extending lengthwise in the shelf bracket. With the leg assemblies in their open positions, a shelf assembly extends between and engages the notches of the shelf brackets, preventing rotation of the leg assemblies away from their open positions. Ends of the legs can be shaped to bind against the frame at selected positions, to provide detents to hold the leg assemblies in their folded or open positions.

Abstract: A post sleeve includes a reinforced concrete body preformed around a liner that defines a cavity extending longitudinally within the body, sized to receive a post. Standoff ribs run lengthwise within the cavity and extend inward from inner walls of the cavity. A post in the cavity is supported laterally by the standoff ribs. Drain channels between the ribs permit water to flow past the post and exit the cavity via a lower aperture. A drain tube is coupled to the lower aperture, and extends downward where it is covered with gravel at the bottom of a post hole. Concrete is poured around the post sleeve in the hole. The cavity is adaptable to receive posts of varying sizes, and at various depths. A collar closes a space between the post and the top of the cavity, permitting air circulation within the cavity while shedding water and substantially preventing insects from entering the cavity.

Abstract: A monitor device is attached to the water supply line of a consumer where it repeatedly measures a characteristic that correlates to quality of water in the water line. Each of a succession of a water quality values is derived from one or more of the measurements. The process continues at selected intervals to continuously monitor the condition of water in the line. Each new value can be compared to a reference value representing a maximum acceptable level of contaminants. If the water quality value exceeds the reference value, an overvalue signal is produced, indicating an unacceptable level of contaminants in the water. Additionally, the values can be transmitted to a central collection facility where they are correlated with values transmitted by similar devices on the supply lines of other consumers to track the quality of water of a supply system over time.

Abstract: A device repeatedly measures a characteristic, such as electrical conductivity, of water in a water line. A plurality of the measurements are averaged to arrive at a water quality value. This value is displayed and another plurality of measurements are averaged to arrive at another value, which is then displayed in place of the previous value. The process continues at selected intervals in order to provide a continuous display of the condition of water in the line. Each new value is compared to a reference value representing a maximum acceptable level of contaminants. If the water quality value exceeds the reference value, an overvalue signal is produced, indicating an unacceptable level of contaminants in the water. The repeated measurements are obtained at selected intervals, and a new water quality value may be derived at the same intervals by discarding the oldest of the measurements from the previous plurality and including the most recent measurement to create a new plurality of measurements.

Abstract: A device repeatedly measures a characteristic, such as electrical conductivity, of water in a water line. A plurality of the measurements are averaged to arrive at a water quality value. This value is displayed and another plurality of measurements are averaged to arrive at another value, which is then displayed in place of the previous value. The process continues at selected intervals in order to provide a continuous display of the condition of water in the line. Each new value is compared to a reference value representing a maximum acceptable level of contaminants. If the water quality value exceeds the reference value, an overvalue signal is produced, indicating an unacceptable level of contaminants in the water. The repeated measurements are obtained at selected intervals, and a new water quality value may be derived at the same intervals by discarding the oldest of the measurements from the previous plurality and including the most recent measurement to create a new plurality of measurements.