Apparatus for intermittently applying particulate powder material to a fibrous substrate
First Claim
1. An apparatus for applying particulate powder material to a substrate of fibrous material comprising:
- conveyor means for supporting and moving said fibrous substrate in a horizontal path at a predetermined rate;
feeder means having an inlet means and an outlet means, wherein said inlet means receives said particulate powder material and said outlet means is connected to a continuously operating nozzle for producing a continuous stream of said particulate powder material;
said nozzle being movable between a first position and a second position at a predetermined rate, said nozzle having an outlet for alternately directing said continuous stream of particulate powder material toward a predetermined location of said fibrous substrate and toward a diverter means; and
said diverter means disposed above said conveyor means for intermittently receiving the continuous stream of particulate powder material from the nozzle to separate the stream into first and second intermittent streams of particulate powder material,whereby said first intermittent stream is applied to said fibrous substrate moving at said predetermined rate and at said predetermined location of said fibrous subsrate to form a layer of particulate powder material within a predetermined portion of said fibrous substrate.
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Accused Products
Abstract
An apparatus for applying particulate powder material to a moving fibrous substrate is disclosed. The apparatus includes a volumetric dry material feeder for forming a continuous stream of particulate powder material. The continuous stream is then transmitted through a nozzle and exits at an outlet thereof. The nozzle is movable between a first and second position by a motion control. The motion control includes an adjustable differential gear box and an encoder for synchronizing the dispensing of powder at a predetermined location of the substrate. A flow separator is disposed beyond the outlet of the nozzle and intermediate of the first and second positions. In operation, the motion input drives the nozzle to oscillate between the first and second positions at a variable speed over each product cycle. As the nozzle crosses a plane of the flow separator, the continuous stream of particulate powder material exiting the nozzle is split into two intermittent streams of particulate powder material. The first intermittent stream is applied to a predetermined location of the moving fibrous substrate to form a layer of particulate powder material within a predetermined portion of the substrate. The second intermittent stream is recirculated back to the volumetric dry material feeder.
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Citations
13 Claims
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1. An apparatus for applying particulate powder material to a substrate of fibrous material comprising:
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conveyor means for supporting and moving said fibrous substrate in a horizontal path at a predetermined rate; feeder means having an inlet means and an outlet means, wherein said inlet means receives said particulate powder material and said outlet means is connected to a continuously operating nozzle for producing a continuous stream of said particulate powder material;
said nozzle being movable between a first position and a second position at a predetermined rate, said nozzle having an outlet for alternately directing said continuous stream of particulate powder material toward a predetermined location of said fibrous substrate and toward a diverter means; andsaid diverter means disposed above said conveyor means for intermittently receiving the continuous stream of particulate powder material from the nozzle to separate the stream into first and second intermittent streams of particulate powder material, whereby said first intermittent stream is applied to said fibrous substrate moving at said predetermined rate and at said predetermined location of said fibrous subsrate to form a layer of particulate powder material within a predetermined portion of said fibrous substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification