IP Library › Granted Patent US 12,303,929
Granted Patent B1
US 12,303,929 · App. 18/669,823 · Granted May 20, 2025

Material dispense tips

Inventor: Jeffrey P. Fugere (Hampton Falls, NH)
Assignee: DL Technology, LLC.
B05C17/00503B05B1/02B05B1/06B05C17/00506B05C17/00516B21D26/033B21G1/08B21K21/08B21K21/12B21K21/16Y10T29/49432Y10T29/49433Y10T29/49805Y10T29/4998
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Quick Facts
Patent No.
US 12,303,929
App. No.
18/669,823
Granted
May 20, 2025
Kind
B1
Abstract

A dispense tip for low-volume dispensing is formed according to a process. The process comprises forming a hole through a length of a neck formed of a body of material; forming an inlet hole at a distal end of the hole, the inlet hole having a first inner diameter; forming an outlet hole at a distal end of the inlet hole, the outlet hole having a second inner diameter less than the first inner diameter, a first inner taper transitioning the inlet hole from the first inner diameter to the second inner diameter; forming an outer taper having a width that decreases along a longitudinal axis of the length of the hole in a direction of a distalmost end of the outlet hole; and reducing a width of an opening at the distalmost end of the outlet hole to a third inner diameter that is less than the second inner diameter.

Claims (17)

1. A dispense tip for low-volume dispensing formed according to a process, comprising:

forming a hole through a length of a neck formed of a body of material;

forming an inlet hole at a distal end of the hole, the inlet hole having a first inner diameter;

forming an outlet hole at a distal end of the inlet hole, the outlet hole having a second inner diameter less than the first inner diameter, a first inner taper transitioning the inlet hole from the first inner diameter to the second inner diameter;

forming an outer taper having a width that decreases along a longitudinal axis of the length of the hole in a direction of a distalmost end of the outlet hole to a distalmost end of the neck; and

reducing a width of an opening at the distalmost end of the outlet hole to a third inner diameter that is less than the second inner diameter, wherein the distalmost end of the neck and the distalmost end of the outlet hole are positioned along a common horizontal plane.

2. The dispense tip of claim 1 , wherein the third inner diameter is 0.003 inches.

3. The dispense tip of claim 1 , wherein the outer taper terminates at the distalmost end of the outlet hole having the third inner diameter, wherein at least a portion of the distalmost end of the neck has a thickness between the opening at the distalmost end of the outlet hole and the outer taper that decreases along a longitudinal axis.

4. The dispense tip of claim 1 , further comprising: forming a base at an input end of the inlet hole.

5. The dispense tip of claim 4 , wherein the base is formed from the body of material.

6. The dispense tip of claim 5 , wherein the neck and base are formed of a machinable material.

7. The dispense tip of claim 6 , wherein the machinable material includes one or more of stainless steel, copper, brass, aluminum, or alloys thereof.

8. The dispense tip of claim 4 , wherein the base is machined, molded, or otherwise formed from one or more of ceramics, composites, and plastics.

9. The dispense tip of claim 4 , wherein the base is formed independently of the body of material, and coupled to the body of material.

10. The dispense tip of claim 4 , wherein the base comprises a LUER™ lock coupling.

11. The dispense tip of claim 1 , wherein the body of material includes a machinable material.

12. The dispense tip of claim 11 , wherein the machinable material includes one or more of stainless steel, copper, brass, aluminum, or alloys thereof.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 7, 2024
From: FUGERE, JEFFREY P.
To: DL TECHNOLOGY, LLC
Reel/Frame 068209/0384 →
Continuity (7)
Continuation 18143190 · May 4, 2023
Continuation 17689050 · Mar 8, 2022
Continuation 16775666 · Jan 29, 2020
Continuation 15292427 · Oct 13, 2016
Continuation 14217809 · Mar 18, 2014
Continuation 12034313 · Feb 20, 2008
Provisional Application 60890744 · Feb 20, 2007
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