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US 4,550,681 AGranted
Applicator for uniformly distributing a flowable material over a receiving surface
AssigneeJohannes Zimmer
InventorsJohannes Zimmer, Karl Mayer
Life of this patent
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AssigneeJohannes Zimmer
InventorsJohannes Zimmer, Karl Mayer
Estimating the term…
A flowable material, such as an impregnant, a dyestuff or a bonding agent, is applied to the surface of a relatively moving substrate by way of a channel system formed in a plate surface, in a stack of slabs or in a solid block. This channel system has a branched structure extending from an entrance port to a multiplicity of exit ports, the branch channels becoming progressively more numerous and correspondingly narrower toward these exit ports. The latter, extending in a row transverse to the direction of motion across the full width of the substrate surface, open onto that surface directly or through one or more discharge nozzles in the form of a slot or a multiplicity of orifices, possibly with interposition of a gear pump whose toothed cylinders are floatingly received in part-cylindrical cutouts of the body slightly exceeding their diameter.
An applicator for uniformly distributing a flowable material over a surface of a relatively moving substrate, comprising a body provided with a channel system having a branched structure extending from an entrance port to a multiplicity of exit ports disposed in a row transverse to the direction of relative motion, the branches of said channel system becoming progressively more numerous and correspondingly narrower from said entrance port to said exit ports, said channel system forming a multiplicity of tiers paralleling said row and communicating with one another through connecting passages, the number of said branches increasing from one tier to the next, said body comprising a housing and a stack of slabs tightly lodged in said housing perpendicular to the direction of relative motion, said slabs having longitudinally extending cavities in the shape of upwardly open recesses with bottoms having restricted bores, said cavities forming respective tiers of said channel system.
In an applicator for the uniform distribution of a flowable material over a surface of a relatively moving substrate, including an inlet for the flowable material, an elongate outlet transverse to the direction of relative motion and a channel system forming a flow path from said inlet to said outlet inside said body,
Dependencies are inferred from the claim text.