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CA1092802A Expired / Lapsed CA ⏱️ 0.0 years remaining

Extrusion nozzle for molten adhesive dispensing device

Assignee: Nordson Corp
•
Filing: 1978-01-27
•
Granted: 1981-01-06
•
Expires: 1998-01-27
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Abstract

Abstract EXTRUSION NOZZLE FOR MOLTEN ADHESIVE DISPENSING DEVICE Abstract of the Disclosure An extrusion nozzle of an extended length, that nozzle being directly connected in heat transfer relation with a heater block in the discharge head of a molten adhesive dispensing device. The elongated nozzle is comprised of an inner tube of steel, and an outer casing of copper or aluminum, to establish optimum strength and heat transfer characteristics for the nozzle along the length thereof from one end to the other. The molten adhesive gun's heater block provides the heat source for the nozzle's casing, the heated casing preventing the molten adhesive from solidifying within the inner tube prior to discharge of the adhesive from the nozzle.

Inventors

  • 👤 Joseph S. Smith

Bibliographic Details

Application Number —
Jurisdiction CA
Data Source google_patents
Last Synchronized 2026-11-06 16:11
CPC Classifications
—

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 133 words
A molten adhesive dispensing device, said device including a discharge head, a heater body within said discharge head, and the improvement comprising a long tapered nozzle of extended length having a length to inside diameter ratio of at least twenty to one, said nozzle being connected at one end in conductive heat exchange relation with said heater body, said tapered nozzle having a tapered outer casing, said casing having an axial bore therein and being fabricated of one of copper and aluminum, one end of said casing being structured to removably connect with said heater body, and an inner steel tube contained within the bore of said nozzle outer casing, said steel tube extending from adjacent said one end of said casing slightly beyond said outer casing at the other output end thereof.
Claim 2
Dependent Claim 133 words
A molten adhesive dispensing device, said device including a discharge head, a heater body within said discharge head, and the improvement comprising a long tapered nozzle of extended length having a length to inside diameter ratio of at least twenty to one, said nozzle being connected at one end in conductive heat exchange relation with said heater body, said tapered nozzle having a tapered outer casing, said casing having an axial bore therein and being fabricated of one of copper and aluminum, one end of said casing being structured to removably connect with said heater body, and an inner steel tube contained within the bore of said nozzle outer casing, said steel tube extending from adjacent said one end of said casing slightly beyond said outer casing at the other output end thereof.
Claim 3
Dependent Claim 32 words
The molten adhesive dispensing device as set forth in Claim 1 wherein said casing is threaded on said one end thereof, said threaded casing section being threadably engaged with said heater body.

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