Glue pen

Patent metadata

Field	Value
Publication number	US-10406554-B2
Application number	US-201615377020-A
Country	US
Kind code	B2
Filing date	Dec 13, 2016
Priority date	Apr 1, 2016
Publication date	Sep 10, 2019
Grant date	Sep 10, 2019

Abstract

An ergonomic glue pen employs a spring-loaded advancing assembly for advancing a glue stick toward a heater. When the proper temperature is reached, a trigger is depressed to dispense glue through a forward nozzle. In some embodiments, the nozzle changes color when the proper temperature is obtained. A button at the side of the glue pen is manually displaceable by the user. The glue stick is loaded at the rear of the glue pen via a one-way collet. The trigger preferably interacts with the advancing assembly via a spring-loaded ratchet mechanism.

First claim

The invention claimed is:

1. A glue pen comprising:
an elongated body comprising a forward discharge nozzle and a rearward receiver adapted to receive a glue stick and having a passageway extending from said receiver to said nozzle, said receiver comprising a spring-loaded knob with a collet which inwardly engages a glue stick inserted in said receiver and forms a one-way stop which is releasable by forwardly compressing said knob;
a feed assembly disposed in said elongated body and comprising a collar engageable against the glue stick, and a spring exerting a force to advance the glue stick;
a heater assembly in proximity to a forward portion of said passageway; and
a trigger assembly comprising a pivotal lever-like trigger exteriorly extending from said body and having a dispensing position and a non-dispensing position and having a portion engageable with said feed assembly,
wherein when a glue stick is inserted in said receiver and engaged by said feed assembly and advanced toward said nozzle, and said heater assembly generates heat, and said trigger assembly is actuated to a dispensing position, molten glue is dispensed through said nozzle.

2. The glue pen of claim 1 wherein said body defines a pair of opposed longitudinal slots, and said feed assembly comprises opposed feed buttons and each button is displaceable along said slot.

3. The glue pen of claim 1 wherein said feed assembly comprises a member having a ratchet surface and said trigger assembly has at least one tooth which is engageable at longitudinal positions of said ratchet surface to releasably fix the longitudinal position of the received glue stick.

4. The glue pen of claim 1 wherein said trigger assembly comprises a pivotally mounted trigger which is spring biased to the non-dispensing position and is depressible to the dispensing position.

5. A glue pen comprising:
an elongated body comprising a forward discharge nozzle and a rearward receiver adapted to receive a glue stick and having a passageway extending from said receiver to said nozzle, said body defining a longitudinal slot;
a feed assembly comprising a feed button actuatable exteriorly of said body and longitudinally displaceable relative to said body along said slot and a spring exerting a force to advance the glue stick;
a heater in proximity to a portion of said passageway; and
a trigger assembly having an exteriorly actuating pivotal trigger having a dispensing and a non-dispensing position and engageable with said feed assembly,
wherein when a glue stick is inserted in said receiver and engaged by said feed assembly, said heater is energized and said trigger assembly is actuated to a dispensing position, molten glue is dispensed through said nozzle.

6. The glue pen of claim 5 further comprising an indicator which indicates that the heater has reached a sufficient temperature for transforming a portion of said glue stick into molten glue.

7. The glue pen of claim 6 wherein said indicator comprises a coating on or adjacent said forward discharge nozzle which turns a distinctive color.

8. The glue pen of claim 6 wherein said indicator comprises an LED which illuminates to indicate that a sufficient temperature has been attained.

9. The glue pen of claim 5 wherein said feed assembly further comprises a locking collar comprising a plurality of angularly spaced resilient generally longitudinally extending fingers with distal grips which engage an inwardly received glue stick.

10. The glue pen of claim 5 wherein said trigger assembly comprises a pivotal member which is biased to the non-dispensing position and is depressible to the dispensing position.

11. The glue pen of claim 5 further comprising a heat shield for said heater and heat warning indicia at the exterior of said elongated body.

12. The glue pen of claim 5 wherein said trigger assembly is engageable with said feed assembly via a spring-loaded interaction.

13. The glue pen of claim 5 wherein said feed assembly comprises a member having an outer longitudinal serrated surface and defining an inner generally cylindrical receiving cavity, said member being biased by the spring.

14. The glue pen of claim 1 wherein said receiver further comprises a spring-loaded knob with a collet which inwardly engages a glue stick inserted in said receiver and forms a one-way stop which is releasable by forwardly compressing said knob.

15. A glue pen comprising:
an elongated body comprising a forward discharge nozzle and a rearward receiver adapted to receive a glue stick, a passageway extending from said receiver to said nozzle, said receiver comprising a spring-loaded knob with a collet which inwardly engages a glue stick inserted in said receiver and forms a one-way stop which is releasable by forwardly compressing said knob;
a feed assembly disposed in said body and comprising a longitudinally displaceable member which mounts at least one feed button and a spring exerting an advance force with respect to a received glue stick;
a heater in proximity to a forward portion of said passageway; and
a trigger assembly having a dispensing and non-dispensing position and engageable with said feed assembly via a spring-loaded mechanism,
wherein when a glue stick is inserted in said receiver, engaged by said feed assembly and advanced toward said nozzle, and said heater is energized to a temperature for melting a portion of said glue stick and said trigger assembly is actuated to a dispensing position, molten glue is dispensed through said nozzle.

16. The glue pen of claim 15 wherein said feed assembly comprises a locking collar having a plurality of angularly spaced, generally longitudinally extending fingers which inwardly engage a received glue stick.

17. The glue pen of claim 15 wherein said trigger assembly comprises a pivotally mounted trigger which is biased to a non-dispensing position and is depressible to a dispensing position and extends exteriorly from said elongated body.

18. The glue pen of claim 15 wherein said member further comprises a longitudinally extending serrated surface forming a plurality of serrations, and said trigger assembly comprises at least one tooth which is intermittently engageable with the serrations.

19. A glue pen comprising:
an elongated body comprising a forward discharge nozzle and a rearward receiver adapted to receive a glue stick and having a passageway extending from said receiver to said nozzle, said body defining a pair of opposed longitudinal slots;
a feed assembly disposed in said elongated body and comprising a collar engageable against the glue stick, and a spring exerting a force to advance the glue stick, said feed assembly comprising opposed feed buttons and each button is displaceble along a said slot;
a heater assembly in proximity to a forward portion of said passageway; and
a trigger assembly having a dispensing and a non-dispensing position and having at least one lever engageable with said feed assembly,
wherein when a glue stick is inserted in said receiver and engaged by said feed assembly and advanced toward said nozzle, and said heater assembly generates heat, and said trigger assembly is actuated to a dispensing position, molten glue is dispensed through said nozzle.

Assignees

• Acme United Corp

Inventors

• Seferi Nicholas L

Classifications

• B05C17/00546

  Details of the heating means · CPC title

• B05C17/0053 Primary

  the driving means for the material being manual, mechanical or electrical · CPC title