Acme United Corporation
Glue gun dispensing nozzle indicator

Last updated:

Abstract:

A glue gun dispensing nozzle indicator changes color when a heater element exceeds a transition temperature. In one embodiment, the temperature indicator changes from a blue color to a red color to indicate that the temperature is sufficient so that the glue gun may dispense molten glue. Temperature dependent color pigments are applied as coatings to the indicator.

Status:
Grant
Type:

Utility

Filling date:

25 Oct 2016

Issue date:

24 Dec 2019