IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0972173
(2015-12-17)
|
등록번호 |
US-9573156
(2017-02-21)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
150 |
초록
▼
A fluid dispense tip includes a bevel at an opening to reduce the amount of surface tension, or “land”, at the opening. The bevel is formed by grinding in a longitudinal direction such that any tooling scars resulting from the grinding operation are likewise longitudinally oriented, further reducing
A fluid dispense tip includes a bevel at an opening to reduce the amount of surface tension, or “land”, at the opening. The bevel is formed by grinding in a longitudinal direction such that any tooling scars resulting from the grinding operation are likewise longitudinally oriented, further reducing the amount of surface tension in the tip, thereby leading to heightened dispensing accuracy. The tip may be machined from stock as a unitary piece, to increase its lifetime, and may be formed with a bore of a relatively large diameter that is tapered down to a smaller diameter near the tip opening, to allow for delivery of fluid through the tip body at a decreased pressure. The tip may optionally be formed with a Luer™-style fitting on the body, such that the tip is compatible with pumps that utilize such a fitting.
대표청구항
▼
1. A dispense tip, comprising: an elongated neck, the neck including steel;an elongated hole in the neck, the hole extending from an input end region of the neck to an output end region of the neck, a portion of the elongated hole having an inner surface of a first inner diameter, and the output end
1. A dispense tip, comprising: an elongated neck, the neck including steel;an elongated hole in the neck, the hole extending from an input end region of the neck to an output end region of the neck, a portion of the elongated hole having an inner surface of a first inner diameter, and the output end region including a neck outlet having an inner surface of a second inner diameter, the first inner diameter being greater than the second inner diameter the neck outlet, the neck outlet at an outermost end of the output end region of the neck, wherein the outlet having the inner surface of the second inner diameter has a first length;a Luer™-type base coupled to the neck for mounting the dispense tip to a dispensing device having a material pump that introduces the flow of material to the dispense tip during a dispensing operation, the base including an inlet and an outlet, the input end region of the neck communicating with the base outlet such that a single fluid path is formed between the base inlet and the neck outlet, the base including at least one composite; anda bevel about the outermost end of the output end region of the neck, the bevel having a surface of a second length, wherein the second length of the bevel surface is greater than the first length of the neck outlet; wherein the hole of the neck includes an inner taper for transitioning the inner surface of the hole from the first inner diameter to the second inner diameter. 2. The dispense tip of claim 1, wherein the base is formed separately from the neck and wherein the base and neck are coupled by mounting the neck to the base. 3. The dispense tip of claim 1, wherein the base includes a funnel that delivers fluid to the neck, the funnel having a funnel inlet at an input end of the funnel and a funnel outlet at an output end of the funnel, wherein the neck communicates with the funnel outlet such that the dispense tip includes a single material path between the funnel outlet and the neck outlet. 4. A method forming a dispense tip, comprising: forming an elongated neck;forming an elongated hole in the neck, the hole extending from an input end region of the neck to an output end region of the neck, a portion of the elongated hole having an inner surface of a first inner diameter, and the output end region including a neck outlet having an inner surface of a second inner diameter, the first inner diameter being greater than the second inner diameter the neck outlet, the neck outlet at an outermost end of the output end region of the neck, wherein the outlet having the inner surface of the second inner diameter has a first length;coupling a Luer™-type base to the neck for mounting the dispense tip to a dispensing device having a material pump that introduces the flow of material to the dispense tip during a dispensing operation, the base including an inlet and an outlet, the input end region of the neck communicating with the base outlet such that a single fluid path is formed between the base inlet and the neck outlet; andforming a bevel about the outermost end of the output end region of the neck, the bevel having a surface of a second length, wherein the second length of the bevel surface is greater than the first length of the neck outlet; wherein the hole of the neck includes an inner taper for transitioning the inner surface of the hole from the first inner diameter to the second inner diameter. 5. The method of claim 4, wherein the base includes at least one composite and the neck includes steel. 6. The method of claim 4, wherein the neck comprises at least one of Stainless steel, ceramics, composites, glass, and epoxy. 7. The method of claim 4, wherein the base comprises at least one of Stainless steel, ceramics, composites, glass, and epoxy. 8. The method of claim 4, further comprising forming a funnel in the base that delivers fluid to the neck, the funnel having a funnel inlet at an input end of the funnel and a funnel outlet at an output end of the funnel, wherein the neck communicates with the funnel outlet such that the dispense tip includes a single material path between the funnel outlet and the neck outlet. 9. The method of claim 4, wherein a portion of an outer surface of the base has a constant diameter, the portion extending in a direction along the longitudinal axis, the base including a Luer™-type female coupling for mounting the dispense tip to a male coupling of the material pump. 10. The method of claim 4, wherein forming the elongated neck includes machining the neck from a stock of steel along a longitudinal axis. 11. The method of claim 10, further comprising: machining a first bore having the second inner diameter through the entire neck along the longitudinal axis of the neck to form the inner surface of the neck outlet;machining a second bore having the first inner diameter through a portion of the neck along the longitudinal axis to form the inner surface of the elongated hole; andforming an inner taper in the bore of the neck to gradually conform the inner surface of the first diameter and the inner surface of the second diameter. 12. The method of claim 4, wherein forming the bevel comprises grinding the bevel substantially along the longitudinal axis of the neck such that any tooling marks resulting therefrom are substantially aligned with the longitudinal axis. 13. The method of claim 12, wherein forming the bevel further comprises electropolishing the bevel to substantially remove the tooling marks. 14. The method of claim 4, further comprising forming an outer taper along an outer surface of the neck such that an input end region of the neck in proximity to the base has a first outer diameter, and such that the output end region of the neck has a second outer diameter, wherein the first outer diameter is greater than the second outer diameter, and wherein the outer taper transitions the outer surface of the neck from the first outer diameter to the second outer diameter.
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