Abstract: Some embodiments of a point-of-sale register apparatus may include first and second printers supported by a printer stand. The printer stand may arrange the first and second printers in a vertical array so as to efficiently use the space at the point-of-sale register. In some embodiments, the vertical array of printers is positioned near a user's hands and within a user's immediate line of sight when viewing the register's display screen.

Abstract: System and methods for supplying electric power to a power grid are disclosed. The system includes a power generation source, a charging station for charging a zinc-based energy storage device from the power generation source, and a transport module for transporting the zinc-based energy storage device. The system also includes an input station for supplying power to the power grid from the zinc-based energy storage device, and a controller for selectively discharging the zinc-based energy storage device to the power grid based on the initiation signal.

Abstract: Some embodiments of a point-of-sale register apparatus may include first and second printers supported by a printer stand. The printer stand may arrange the first and second printers in a vertical array so as to efficiently use the space at the point-of-sale register. In some embodiments, the vertical array of printers is positioned near a user's hands and within a user's immediate line of sight when viewing the register's display screen.

Abstract: System and methods for supplying electric power to a power grid are disclosed. The system includes a power generation source, a charging station for charging a zinc-based energy storage device from the power generation source, and a transport module for transporting the zinc-based energy storage device. The system also includes an input station for supplying power to the power grid from the zinc-based energy storage device, and a controller for selectively discharging the zinc-based energy storage device to the power grid based on the initiation signal.

Abstract: In accordance with an aspect of the present invention, a system for providing storage tank measurements to a remote location is provided. The system includes a control box configured to take a plurality of readings from within the storage tank and transmit those readings to a master computer. The master computer is configured to receive and store the plurality of readings, and in response to receiving a request for a measurement for the storage tank, calculate the requested measurement utilizing the received readings. The calculated measurements are then transmitted to the device requesting the measurements.

Abstract: A monitor for remote reading of liquid volumes in pressurized tanks utilizes a hollow buoyant displacement probe extending downwardly from a load cell carried adjacent a top port in the tank. The buoyant probe is optionally formed in detachable segments so that it can be assembled on site at the time of installation. The load cell is suspended from a flange cover acting as a closure for the tank port so that the load cell is freely pivotable on perpendicular horizontal axes, insuring that it is always oriented horizontally. A temperature-reading string is positioned in the open hollow center of the probe and has three spaced temperature sensing units along its length.

Abstract: A monitor for remote reading of liquid volumes in pressurized tanks utilizes a hollow buoyant displacement probe extending downwardly from a load cell carried adjacent a top port in the tank. The buoyant probe is optionally formed in detachable segments so that it can be assembled on site at the time of installation. The load cell is suspended from a flange cover acting as a closure for the tank port so that the load cell is freely pivotable on perpendicular horizontal axes, insuring that it is always oriented horizontally. A temperature-reading string is positioned in the open hollow center of the probe and has three spaced temperature sensing units along its length.

Abstract: A monitor for remote reading of liquid volumes in pressurized tanks utilizes a hollow buoyant displacement probe extending downwardly from a load cell carried adjacent a top port in the tank. The load cell is suspended from a flange cover acting as a closure for the tank port so that the load cell is freely pivotable on perpendicular horizontal axes, insuring that it is always oriented horizontally. A temperature-reading string is positioned in the open hollow center of the probe and has three spaced temperature sensing units along its length. Force data from the load cell, giving the apparent weight of the probe immersed in the liquid tank contents, and temperature data, from which volumetric data may be calculated, are fed to an external battery-operated microprocessor which periodically radios its data to a central computer which may be polled by phone lines from a remote monitoring station.

Abstract: A monitor for remote reading of liquid volumes in pressured tanks utilizes a hollow buoyant displacement probe extending downwardly from a load cell carried adjacent a top port in the tank. The load cell is suspended from a flange cover acting as a closure for the tank port so that the load cell is freely pivotable on perpendicular horizontal axes, insuring that it is always oriented horizontally. A temperature-reading string is positioned in the open hollow center of the probe and has three spaced temperature sensing units along its length. Force data from the load cell, giving the apparent weight of the probe immersed in the liquid tank contents, and temperature data, from which volumetric data may be calculated, are fed to an external battery-operated microprocessor which periodically radios its data to a central computer which may be polled by phone lines from a remote monitoring station.

Abstract: An electronic trigger lock which contains a back plate which blocks access to the trigger from one side of a firearm. This back plate has a member extending from it which contains a first series of ratchet teeth. Next, an electronic portion of the electronic trigger guard is provided to block access to the other side of the trigger. This electronic portion is contained within an outer housing. A user interface is located on the exterior of the outer housing for entering information into the electronic trigger lock. This interface may be comprised of translucent colored buttons. Also, this user interface is illuminated. The outer housing has an opening for receiving the member extending from the back plate. This opening contains a second series of ratchet teeth which are adapted to engage the first series of ratchet teeth on the member. A solenoid is located inside the outer housing to enable the release of the first series of ratchet teeth from the second series of ratchet teeth.