Recirculating powder applicator
First Claim
1. A recirculating powder applicator, comprising:
- an applicator body including an inlet on an upstream surface and an outlet on a downstream surface, wherein the inlet and the outlet define a passage that extends transversely through the thickness of the applicator body;
a powder conduit;
an air inlet;
an exhaust aperture located on one of the upstream or downstream surfaces; and
a circulation chamber located on the interior of the applicator body, wherein the circulation chamber has a curved outer wall with an interior radius of curvature that decreases along the length of the wall;
wherein the powder conduit and the air inlet are in fluid communication with the passage and wherein the passage is in fluid communication with the circulation chamber.
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Accused Products
Abstract
A recirculating powder applicator includes an applicator body having an inlet on an upstream surface and an outlet on a downstream surface, wherein the inlet and outlet define a passage that extends transversely through the thickness of the applicator body, a powder conduit, an air inlet, an exhaust aperture located on one of the upstream or downstream surfaces, and a circulation chamber located on the interior of the applicator body. The powder conduit and air inlet are in fluid communication with the passage and the passage is in fluid communication with the circulation chamber. A method of applying powder to a substrate during a continuous process includes using a recirculating powder applicator.
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Citations
8 Claims
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1. A recirculating powder applicator, comprising:
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an applicator body including an inlet on an upstream surface and an outlet on a downstream surface, wherein the inlet and the outlet define a passage that extends transversely through the thickness of the applicator body; a powder conduit; an air inlet; an exhaust aperture located on one of the upstream or downstream surfaces; and a circulation chamber located on the interior of the applicator body, wherein the circulation chamber has a curved outer wall with an interior radius of curvature that decreases along the length of the wall; wherein the powder conduit and the air inlet are in fluid communication with the passage and wherein the passage is in fluid communication with the circulation chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification