Abstract: A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.

Abstract: A heat exchanger assembly including an elongated tubular heat exchanger enclosure defining an interior chamber. A tube sheet is positioned within the interior chamber of the heat exchanger enclosure separating the interior chamber into a shell side and a channel side. The interior portion is configured to removably receive a tube bundle positioned within the shell side of the interior chamber. An annular sleeve member is positioned within the channel side of the interior chamber of the heat exchanger enclosure. An annular elastic torsion member is positioned within the channel side of the interior chamber of the heat exchanger such that the sleeve member is positioned between the tube sheet and the elastic torsion member. The elastic torsion member has an inner circumference deflectable relative to its outer circumference for torsioning the elastic torsion member.

Abstract: A shower arm leak detection device with adjustable sleeves is disclosed. In a particular embodiment, the shower arm leak detection device includes a tubular sleeve having a first end and a second end, where the first end is adapted to be secured over a drop ear 90° plumbing fitting on an interior side of a wall and the second end is adapted to be open to an exterior side of the wall. The drop ear 90° fitting includes a port adapted to be secured to a shower arm, where a connection at the port and threading of the shower arm is susceptible to leakage. An outer sleeve is adapted to slide partially over the tubular sleeve, where the outer sleeve allows for adjustment to the width between the connection of the port and the shower arm and the exterior side of the wall in telescoping fashion.

Abstract: A shower arm leak detection device with adjustable sleeves is disclosed. In a particular embodiment, the shower arm leak detection device includes a tubular sleeve having a first end and a second end, where the first end is adapted to be secured over a drop ear 90° plumbing fitting on an interior side of a wall and the second end is adapted to be open to an exterior side of the wall. The drop ear 90° fitting includes a port adapted to be secured to a shower arm, where a connection at the port and threading of the shower arm is susceptible to leakage. An outer sleeve is adapted to slide partially over the tubular sleeve, where the outer sleeve allows for adjustment to the width between the connection of the port and the shower arm and the exterior side of the wall in telescoping fashion.

Abstract: The general concept of this invention is to utilize the high efficiency of heat transfer that is obtained by allowing the exhausting gas from the burner to come into intimate contact with the liquid to be heated. A housing adapted for partial immersion in the liquid of the tank and has an internal liquid heating chamber and defines inlet and outlet openings. A burner tube is supported within the housing and extends into the liquid and provides a combustion gas discharge opening. A burner assembly having a supply of combustible gas and air is in communication with the burner tube and has a burner nozzle being positioned to direct a flame into the burner tube. The burner tube has sufficient length for substantially complete combustion of a gas/air mixture within said burner tube and to discharge hot combustion gas into the liquid within said internal liquid heating chamber. The flame and hot combustion gas efficiently heat the liquid circulating through the chamber via the inlet and outlet openings.

Abstract: A method and apparatus for substantially smoke free separation and recovery of zinc from galvanizing skimmings and for refining the resulting ash to a by-product form. An essentially closed housing defining a skimmings receiving chamber and a skimmings processing chamber with a bottom opening is placed on or above a galvanizing kettle and extends into the molten zinc of the kettle so that molten zinc is present with a skimmings processing chamber. A motor driven agitator shaft having paddles is rotated within the skimmings processing chamber so that the ends of the paddles enter the molten zinc during each shaft revolution and enhance melting and recovery of the zinc.

Abstract: An automated method and apparatus for galvanizing threaded rods, comprising conveying threaded rods while horizontally oriented through a bath of molten zinc, then simultaneously spinning the threaded rods in horizontal orientation at sufficient rotational velocity to remove excess molten zinc therefrom by centrifugal force and conveying the threaded rods to a cooling bath. The automated apparatus then conveys the zinc coated threaded rods through a cooling bath to solidify the molten zinc coating and then collects cooled zinc coated threaded rods to permit efficient removal thereof from the apparatus. A rotary conveyor mechanism of the automated apparatus conveys the threaded rods through a molten zinc bath and removes excess molten zinc therefrom by rolling the coated threaded rods down an inclined zinc removal platform.