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