Hot melt adhesive foam dispensing system implementing a heat exchanger and process implementing a hot melt adhesive foam dispensing system
AssigneeNordson Corporation
InventorsLaurence B. SAIDMAN, Chuck GANZER, Steve CLARK
Life of this patent
Estimating the term…
Abstract
A dispensing system includes an impeller device configured to receive a hot melt adhesive; a pump having a first input configured to receive the hot melt adhesive and a second input configured to receive a gas, where the pump is configured to mix the hot melt adhesive and the gas to produce a solution and pump the solution at a volumetric flow rate; a valve configured to control an amount of the gas provided to the pump through the second input; and a dispenser configured to receive the solution from the pump and dispense the solution to create the hot melt adhesive foam.
Claims30
A dispensing system for dispensing hot melt adhesive foam onto a substrate, the dispensing system comprising:
- an impeller device configured to receive a hot melt adhesive;
- a pump having a first input configured to receive the hot melt adhesive and a second input configured to receive a gas, wherein the pump is configured to mix the hot melt adhesive and the gas to produce a solution and pump the solution at a volumetric flow rate;
- a valve configured to control an amount of the gas provided to the pump through the second input;
- and
- a dispenser configured to receive the solution from the pump and dispense the solution to create the hot melt adhesive foam.
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A dispensing system for dispensing hot melt adhesive foam onto a substrate, the dispensing system comprising:
- a heat exchanger arranged in a manifold and/or includes a manifold;
- a pump having a first input configured to receive a hot melt adhesive and a second input configured to receive a gas, wherein the pump is configured to mix the hot melt adhesive and the gas to produce a solution and pump the solution at a volumetric flow rate;
- a valve configured to control an amount of the gas provided to the pump through the second input;
- and
- a dispenser configured to receive the solution from the pump and dispense the solution to create the hot melt adhesive foam.
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A method of dispensing hot melt adhesive foam onto a substrate, the method comprising:
- receiving a hot melt adhesive to an impeller device from a hot melt adhesive source;
- receiving a gas from a gas source;
- mixing the hot melt adhesive and the gas to produce a solution;
- pumping the solution from a pump to a dispenser at a volumetric flow rate;
- lowering a temperature of the hot melt adhesive with a heat exchanger arranged in a manifold and/or includes a manifold;
- and
- dispensing the solution to create the hot melt adhesive foam.
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Dependencies are inferred from the claim text.