Abstract: A system and method for controlling the temperature and volume of a liquid entering a basin includes a microprocessor, a comparator, and a database. The system may include a control panel having buttons for establishing temperature and volume levels for water entering a bath. In one embodiment, the user uses a keypad to enter the desired temperature which is sent to a comparator. The system includes a temperature sensor to detect real-time temperature of the water entering a basin. The sensed real-time water temperature may also be sent to a comparator for controlling water control values to cease the inflow of water into the basin. The system also permits the user to store favorite volume settings for later use in filling the basin. In another embodiment the user communicates with the system to remotely establish a desired temperature value and basin volume fill level.

Abstract: A bubble level designed to indicate the proper angle for use of Non-Self Supporting Portable Ladders is comprised of a housing (2) used to protect a bubble level (3) that will indicate when the proper angle is reached for safe use of the ladder as prescribed by OSHA Standard 1926.1053. The user will mount the device using a clamp (1) that can be rotated using the swivel hinge (5) over an 180° arc to locate the “Safe Use” indicator window at a 90° angle to the ladder side rail. The bubble level will be calibrated to indicate an angle of 78° from horizontal, the angle critical to the safety of the user. This device will provide a simple yet reliable indication of the safe use angle and can be carried by the user to mount on various ladders they may be working with or mounted permanently to all ladders considered for use.

Abstract: A wall mounted electronic control system is used to control user defined temperature setpoints to regulate bath or shower water temperatures and tub levels where desired. The user will use a keypad to enter the desired temperature using the temperature setpoint adjust buttons (11) and initiate the start sequence on the control unit (10). The control unit (10) will output a signal to open the motorized water control valves (12). The thermocouple (14) will send an input signal to the control unit (10) where the unit will compare the input and output signal to generated an adjusted output to throttle the motorized water control valves (12) until the desired temperature setpoint is reached. The automatic drain valve (13) will close if the “Bath” mode is selected until the desired water level triggers the water level sensor (16), which will then close the motorized water control valves (12). An audible signal will then be generated by the control unit alerting the user that the bath is ready.