Abstract: A system and method for display of multiple data sets related to building systems is provided. A first building system includes a first sensor that generates first operating data corresponding to the first building system. A second building system includes a second sensor that generates second operating data corresponding to the second building system. A data server stores the first operating data and the second operating data. A user terminal accesses the first operating data and the second operating data, receives user input selecting the first operating data and the second operating data for display, and displays the first operating data and the second operating data together in a graphical display.

Abstract: A method for audibly detecting a fluid flow state change in a flow meter pipeline. The flow state change may be identified as an upset in the normal flow state. The upset may be corrected to improve the accuracy of the flow meter. A system includes acoustic sensors mounted in the flow meter pipeline, and a computer to collect audible data from the acoustic sensors and compare the audible data to a baseline to detect an upset in the normal fluid flow state.

Abstract: Apparatus and methods for proving a flow meter at low temperatures. A flow meter measuring low temperature fluids (e.g., less than about ?50° F., or less than about ?220° F.) must still be proved. Low temperature fluids can be destructive to piston or compact provers, or may require indirect proving methods. The apparatus disclosed is a low temperature prover directly coupled into the pipeline carrying the low temperature fluids. In some embodiments, a magnetic pickup coil and a magnetic member communicate between the displacer and the flow tube. The magnetic target member may be carbon-free. In some embodiments, a pair of ultrasonic transceivers coupled to the flow tube communicate a signal across the flow tube and a displacer is moveable to interrupt the signal. In some embodiments, the flow tube includes an inner surface having a microfinish for lubrication. The displacer may be a piston rotatable while being moved axially.

Abstract: A system and method for display of multiple data sets related to building systems is provided. A first building system includes a first sensor that generates first operating data corresponding to the first building system. A second building system includes a second sensor that generates second operating data corresponding to the second building system. A data server stores the first operating data and the second operating data. A user terminal accesses the first operating data and the second operating data, receives user input selecting the first operating data and the second operating data for display, and displays the first operating data and the second operating data together in a graphical display.

Abstract: A flow meter prover (120, 220, 320) is provided with multiple pairs of detectors to record multiple calibrated prover volumes with a single pass of the displacer 124. The prover conduit 122 may be fitted with a first pair of detectors (116, 118) for a first calibrated prover volume (V1) and a second pair of detectors (130, 132) for a second calibrated prover volume (V2). A single pass of the displacer may trip more pairs of detectors (216, 218, 230, 232, 234, 236) corresponding to more calibrated prover volumes (V3, V4, V5). A flow computer 326 may be configured to record more than two calibrated prover volumes (V6, V7, V8, V9) using only two pairs of detectors (316, 318, 330, 332) and a displacer (324).

Abstract: A method for audibly detecting a fluid flow state change in a flow meter pipeline. The flow state change may be identified as an upset in the normal flow state. The upset may be corrected to improve the accuracy of the flow meter. A system includes acoustic sensors mounted in the flow meter pipeline, and a computer to collect audible data from the acoustic sensors and compare the audible data to a baseline to detect an upset in the normal fluid flow state.

Abstract: Apparatus and methods for proving a flow meter at low temperatures. A flow meter measuring low temperature fluids (e.g., less than about ?50° F., or less than about ?220° F.) must still be proved. Low temperature fluids can be destructive to piston or compact provers, or may require indirect proving methods. The apparatus disclosed is a low temperature prover directly coupled into the pipeline carrying the low temperature fluids. In some embodiments, a magnetic pickup coil and a magnetic member communicate between the displacer and the flow tube. The magnetic target member may be carbon-free. In some embodiments, a pair of ultrasonic transceivers coupled to the flow tube communicate a signal across the flow tube and a displacer is moveable to interrupt the signal. In some embodiments, the flow tube includes an inner surface having a microfinish for lubrication. The displacer may be a piston rotatable while being moved axially.

Abstract: A recreational vehicle is disclosed, comprising a plurality of wheels configured to enable the recreational vehicle to roll along the ground, an interior living space enclosed by a plurality of walls, and a generally U-shaped seating area. In some embodiments, the generally U-shaped seating area may comprise two side couches and an interior couch that utilizes a lower mattress as a seat cushion. An exterior couch may face opposite the interior couch and also utilize the lower mattress as a seat cushion. In some embodiments, the recreational vehicle also comprises tracks for elevating the lower mattress and an upper mattress, and elevated table mounts attached to the bottom of the upper mattress that may be used to store one or more table tops below the upper mattress.

Abstract: This wiring circuit allows for the use of an electric starting motor to revolve the model engine up to its normal operating R.P.M. range before the glo plug is ignited. This method provides combustion within the engine cylinder at a time when the propeller or flywheel has built up sufficient momentum to provide high enough piston speed to carry over the top dead center point at which combustion occurs, and eliminates the probability of the piston being driven backward causing backfiring or kickback.