Abstract: A toilet apparatus comprises a base including a bowl and a rim. The bowl retains water and waste material. The water and the waste material emitting an odor. The rim extends inwardly from an upper periphery of the bowl, wherein the inwardly extending rim includes an upper surface, a lower surface, and an inner surface. The inner surface of the rim including one or more ventilation ports providing fluid communication between an interior of the bowl and a ventilation chamber. The ventilation chamber is connected to a ventilation pipe. An exhaust fan ventilates the odor through the ventilation chamber and the ventilation pipe from the interior of the bowl.

Abstract: A method and apparatus for optimizing the injecting of NOx inhibiting liquid reagent into the flue gas of a utility or industrial type boiler to reduce emissions of NOx including a temperature sensor for measuring the boiler flue gas temperature and a moveable conduit for injecting the NOx inhibiting reagent into the flue gas at a sensed predetermined temperature range.

Abstract: A control joint for forming and controlling concrete structures such as floors and tilt-up walls. The joint has a base and an upstanding web and is preferably extruded from plastic having a honeycomb cell structure. The honeycomb structure may include a metal reinforcing section extending within the structure along the length of the joint. The joint may be utilized to form various concrete structures such as sidewalks, pads and tilt-up walls.

Abstract: A control joint for forming and controlling concrete structures such as floors and tilt-up walls. The joint has a base and an upstanding web with an off-set section and is preferably extruded from plastic. In alternate embodiments, the joint has a base and a web with a removable top cap for forming a chamber or recess in the completed product. A reusable, reinforced form for structures such as stem walls is also disclosed which form can be cut at spaced-apart locations to the desired length.

Abstract: A method and apparatus for optimizing the injecting of NO.sub.x inhibiting liquid reagent into the flue gas of a utility or industrial type boiler to reduce emissions of NO.sub.x including a temperature sensor for measuring the boiler flue gas temperature and a moveable conduit for injecting the NO.sub.x inhibiting reagent into the flue gas at a sensed predetermined temperature range.

Abstract: An apparatus and method for measuring the tip location of a consumable electrode in an electric arc furnace employing an optical fiber with high temperature capability and an optical time domain reflectometer. The optical fiber is encased with a metal tube to prevent the optical fiber from slipping therein and to provide high temperature capability.

Abstract: An apparatus and method for measuring the tip location of a consumable electrode in an electric arc furnace employing an optical fiber with high temperature capability and an optical time domain reflectometer.