Abstract: An exhaust unit for filtering air from an exhaust hood above cooking equipment comprising modular components including an exhaust hood, filtering means and blower means operating as a single unit regardless of configuration.

Abstract: A steam kettle adapted to rotate about a horizontal axis of rotation between a vertically upright position and a tilted position comprising a support; a kettle having an open top; a stationary trunnion housing connected to said support; a trunnion shaft received within said trunnion housing and arranged for rotation about a horizontal axis whereby said kettle is solely supported by said trunnion shaft adapted for rotation about said horizontal axis between said vertical upright position and said tilted position; and securing structure adapted to receive releasable retaining structure for releasably retaining said trunnion shaft with said cylindrical hole of said trunnion housing.

Abstract: An industrial oven, including the combination of a steam generating tank having a water inlet and a steam outlet; walls depending from said tank for defining a combustion chamber therebelow; a preheater associated with one of the said walls exteriorially of said combustion chamber and having a water inlet therein and a water outlet thereof; said preheater water outlet communicating with said tank water inlet; means for generating heat energy within said combustion chamber so as to preheat water within said preheater and generate steam from water within said tank; and means for controlling the introduction of water into said preheater and into said tank so as to minimize the drop of steam pressure in said tank during introduction of water into said tank.

Abstract: A liquid level control device for monitoring the level of water in a steam generating tank between predetermined upper, intermediate, and lower levels, with the tank equipped with a valve for introducing water into the tank and heat energy valve means to generate steam to the water, comprising: a glass gauge tube adapted to be vertically mounted exteriorally of the tank; a top and bottom cover covering the ends of the glass gauge tube, with a bottom cover including an opening for communicating with a liquid in the tank and the top cover including an opening for communicating with steam generated in the tank; upper and lower magnetic float means mounted co-axially within the glass gauge tubes; the upper magnetic float means including means to activate the valve when the water is the region of the predetermined intermediate level so as to introduce water into the tank until the water is in the region of the predetermined upper level, and to deactivate the valve and stop the introduction of water when the water