Nozzle construction for coating equipment

An elongated fluid nozzle construction including:

• (a) a transversely elongated nozzle body having first and second sections, said sections having lip walls forming a transversely elongated discharge opening for discharging a stream of fluid against a moving substrate;
• (b) a transversely extending fluid supply pipe adapted to be connected to a fluid supply for supplying fluid to the nozzle body for discharge through the discharge opening;
• (c) the second nozzle body section being fixed on the fluid supply pipe with the first nozzle body section being pivotally mounted on said supply pipe for adjusting the size of the nozzle discharge opening;
• and
• (d) means mounted on the nozzle body and operatively engageable with the first and second body sections for adjusting the size of the nozzle discharge opening and for maintaining said nozzle opening in the adjusted position.

An improved fluid nozzle construction for coating equipment including:

• (a) a transversely elongated nozzle body having first and second sections forming a transversely elongated discharge opening for discharging a stream of fluid on a moving substrate, each of said sections include a lower fluid distribution portion and an upper closure portion;
• (b) transversely extending pivot means for pivotally mounting the first body section with respect to the second body section, said pivot means being located intermediate the upper and lower portions of said body sections;
• (c) closure means operatively engageable with the first body section for moving said first body section with respect to the second body section about the pivot means to vary the size of the discharge opening;
• (d) adjustable stop means for limiting the pivotal movement of the first body section with respect to the second body section to define the size of the discharge opening;
• and
• (e) the closure means and stop means effectively acting in a common plane perpendicular to the transversely extending pivot means.

An improved fluid nozzle construction for coating control equipment including:

• (a) a coating control fluid supply pipe;
• (b) a nozzle body formed by two half-sections, one of said half-sections being fixedly mounted on the fluid supply pipe and the other of said half-sections being movably mounted on said supply pipe to regulate a fluid discharge opening formed by nozzle lips mounted on lower ends of said two half-sections;
• (c) fluid distribution chamber means formed in each of the body half-sections and communicating with the fluid supply pipe and with the fluid discharge opening for passing fluid from the supply pipe to the discharge opening;
• (d) closure means mounted on the nozzle body for moving the nozzle lip of the movable half-section toward the nozzle lip of the fixed half-section;
• and
• (e) adjustable stop means mounted on the nozzle body and engageable with the two half-sections for limiting movement of the movable half-section by the closure means to a predetermined position to regulate the size of the nozzle discharge opening.

A transversely elongated gaseous fluid nozzle including:

• (a) first and second sections moveable between an open position and a working position, and forming a plenum and a transversely elongated adjustable discharge opening when in the working position for discharging a stream of gaseous fluid against a moving substrate;
• (b) the second section having a hollow conduit and a pair of converging walls rigidly mounted on said conduit forming a fluid pressure distribution chamber therebetween;
• and with a discharge opening forming lip being mounted on one of said converging walls and with one of said converging walls forming one wall of the plenum;
• (c) the first section having a pair of converging walls rigidly attached to each other and forming a fluid distribution chamber therebetween, and with said walls being pivotally mounted on the second section;
• and with a discharge opening forming lip being mounted on one of said converging walls and with one of said converging walls being spaced from the plenum forming wall of the first section to form the plenum therebetween;
• (d) a plurality of reversible pressure actuated moveable closure means and stop means spaced along the nozzle and acting in cooperation with each other for limiting the movement of the pressure means in the closing direction to determine the size of the discharge opening and to resist the internal pressure exerted on the plenum forming walls by the gaseous fluid within the plenum;
• (e) holes formed in the plenum forming walls providing communication between the plenum and fluid distribution chambers;
• and
• (f) mating opening means formed in the hollow conduit and one of said sections for supplying pressurized fluid from the conduit into the fluid chamber of said section for discharge into the plenum through the associated plenum wall holes.