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US 12,005,474 B2Granted
Adhesive dispensing nozzle
AssigneeHarrington & Associates, Inc.
InventorFloyd L. Kehl
Life of this patent
Estimating the term…
Abstract
A dispensing unit for an adhesive or other viscous liquid includes one or more dispensing nozzles for delivery of the adhesive to a desired surface. The dispensing nozzles each include one or more dispensing ports that are in fluid communication with a nozzle body recess defined through a nozzle body of the dispensing nozzle. Adhesive that is supplied to the nozzle body recess may be thrown laterally from the dispensing nozzle via the dispensing ports. Each of the dispensing ports may be positioned between a pair of projections. The projections protect the dispensing port from breaking due to contact with the surface on which the adhesive is applied or contact with another exterior object.
Claims20
A dispensing unit comprising:
- a plurality of dispensing nozzles, wherein each dispensing nozzle comprises:
- a nozzle body including a nozzle body recess defined through said nozzle body, wherein said nozzle body recess is configured to receive adhesive;
- a plurality of adhesive dispensing ports extending from said nozzle body, wherein an interior end of each of said adhesive dispensing ports is in fluid communication with the nozzle body recess and an exterior end of each of said adhesive dispensing ports is exterior to said nozzle body;
- a plurality of projections extending from said nozzle body, wherein at least one of said projections is adjacent to each adhesive dispensing port;
- and
- wherein said each of said adhesive dispensing ports extends from the nozzle body at a distance that is at least equal to a distance that the at least one adjacent projection extends from said nozzle body;
- a pressure source in communication with said nozzle body recesses ref said dispensing nozzles;
- and
- wherein said adhesive dispensing ports throw adhesive in discrete droplets that separate from the nozzle body and that are propelled across an air gap between said nozzle body and a substrate.
6 more elements
A dispensing unit comprising:
- a frame;
- a plurality of dispensing nozzles mounted to said frame, wherein each dispensing nozzle comprises:
- a nozzle body including a nozzle body recess defined through said nozzle body, wherein said nozzle body recess is configured to receive adhesive;
- and
- a plurality of adhesive dispensing ports extending from said nozzle body;
- one or more adhesive supply tubes for supplying an adhesive to said dispensing nozzles;
- one or more metering valves in fluid communication with said one or more adhesive supply tubes, wherein said one or more metering valves provide a discrete amount of adhesive to each of said dispensing nozzles when actuated;
- a pressure source in communication with said nozzle body recesses of said dispensing nozzles capable of applying pressure to said metering valves;
- and
- wherein said dispensing nozzles dispense the discrete amount of adhesive as discrete droplets that separate from said plurality of adhesive dispensing ports and which are thrown across an air gap onto a substrate upon application of pressure from said pressure source to said metering valves.
7 more elements
A method comprising:
- supplying a discrete amount of adhesive to a plurality of dispensing nozzles, wherein each dispensing nozzle includes a nozzle body recess defined through a nozzle body, and wherein each nozzle body includes:
- a plurality of adhesive dispensing ports extending from said nozzle body;
- a plurality of projections extending from said nozzle body;
- wherein each of said adhesive dispensing ports is positioned between at least two of said projections;
- and
- wherein each of said adhesive dispensing ports extends from the nozzle body at a distance that is at least equal to a distance that an adjacent projection extends from said nozzle body;
- applying pressure to the adhesive within said nozzle body recess to dispense the discrete amount of adhesive from said plurality of adhesive dispensing ports of said nozzle bodies;
- stopping application of pressure when the discrete amount of adhesive has been dispensed from said dispensing nozzles;
- wherein the adhesive is dispensed from said plurality of adhesive dispensing ports in discrete droplets that separate from said plurality of adhesive dispensing ports and which are thrown across an air gap;
- and
- wherein the adhesive is dispensed laterally relative to a longitudinal axis of said nozzle body.
8 more elements
Dependencies are inferred from the claim text.