Flow coat head for curtain coating machines
OwnerFrank Stuhlmaninventor
Life of this patent
Estimating the term…
Abstract
A flow coat head for curtain coating, particularly of sheet material, employing a container for the coating material having a pair of end walls connected by an elongated tubularly-shaped body, provided with an elongated longitudinally extending slot in the wall thereof which forms the material discharge opening of the head, and extends continuously from one end of the body to the other, with the body wall peripherally extending continuously from one of its longitudinal slot edges to the other thereof, forming a slot having a transverse width at least equal to the maximum desired operating width of the material discharged, pressure being applied on said body member at opposite sides of the slot in directions to move the edges of the latter toward one another and thereby vary the effective discharge width of the slot.
Claims13
A flow coat head for curtain coating, particularly of sheet material, comprising a container for the coating material having a pair of end walls, and a pair of walls extending therebetween and connected to one another to form a relatively rigid body, said walls having spaced opposed edges, defining an elongated longitudinally extending slot therebetween at the bottom of the container, which slot forms the material discharge opening of the head, the end edges of at least one of said oppositely disposed walls being laterally movable, adjacent said slot, relative to the adjoining portions of said end walls, said slot, in an unstressed condition of said body, having a transverse width equal to at least the maximum desired operating width, and means engaged with said laterally movable wall for applying pressure thereon, relative to the other of said oppositely disposed walls, greater than the normal inherent rigidity between said opposed walls, to relatively move the edges of said slot toward one another and thereby vary the effective width thereof.
A flow coat head for curtain coating, particularly of sheet material, comprising a container for the coating material, having a pair of end walls connected to an elongated tubular-shaped body formed from a one-piece length of cylindrical tubular stock, peripherally continuous with the exception of an elongated slot extending longitudinally therein continuously from one end of the body to the other, whereby the body wall peripherally extends continuously from one of its longitudinal slot edges to the other thereof, said slot forming the material discharge opening of the head and having a transverse width equal to at least the maximum desired operating width, and adjustable clamping means connecting the walls of the body at opposite sides of said slot, cooperable with said body to apply pressure thereto at opposite sides thereof substantially uniformly spaced from said slot in opposition to and overcoming the normal inherent rigidity of the body to move said walls in directions to correspondingly move the edges of said slot toward one another and thereby vary the effective width thereof.
A flow coat head for curtain coating, particularly of sheet material, comprising a container for the coating material having a pair of end walls, and a pair of walls connected to one another to form a relatively rigid body, said walls having spaced opposed edges defining an elongated longitudinally extending slot therebetween, which forms the material discharge opening of the head, the body, when unstressed having a normal inherent rigidity operative to dispose the edges of said slot in a predetermined spaced relation, and means engaged with said container for applying relative adjusting forces to said walls adjacent said slot, operative to overcome said normal rigidity and effect relative movement between said walls in opposition to said normal rigidity, in directions to provide a different predetermined spacing between said edges, and thereby provide a desired effective width of the discharge opening so formed.
A flow coat head for curtain coating, particularly of sheet material, comprising a container for the coating material having a pair of walls connected to one another to form a relatively rigid body, said walls having free bottom edges spaced from one another to define an elongated longitudinally extending slot therebetween, the body, when unstressed, having a normal inherent rigidity operative to dispose the edges of said slot in predetermined relation, to form a slot having a width at least equal to the maximum desired operating width of the discharge opening, and means engaged with said body at opposite sides of said slot for applying adjusting compression forces to said walls, operative to overcome said normal rigidity and move the corresponding bottom edges of said walls toward one another to provide a predetermined lessor spacing between said edges, and thereby provide a narrower effective width of the discharge opening so formed.
Dependencies are inferred from the claim text.