US 6,981,664 B1
Fluid dispense tips
Jeffrey P. Fugere, Haverhill, Mass. (US)
Assigned to DL Technology LLC, Haverhill, Mass. (US)
Filed on Nov. 26, 2002, as Appl. No. 10/304,576.
Application 10/304576 is a continuation in part of application No. 09/491615, filed on Jan. 26, 2000, granted, now 6,547,167.
Int. Cl. B05B 1/00 (2006.01); A62C 31/02 (2006.01)
U.S. Cl. 239—591 28 Claims
OG exemplary drawing
 
1. A dispense tip comprising:
a Luer™-type base including a female coupling for mounting the dispense tip to a mating male coupling of a material pump, the base including a funnel having an inlet at an input end and an outlet at an output end;
an elongated neck having a longitudinal axis;
a bore machined in the neck centered at the longitudinal axis, the bore having a single input end and a single output end, the input end of the bore communicating with the outlet of the funnel such that the dispense tip includes a single fluid path between the outlet of the funnel and the output end of the bore;
the input end of the bore having an inner surface of a first inner diameter and the output end of the bore having an inner surface of a second inner diameter, the first inner diameter being greater than the second inner diameter; and
an inner taper machined in the bore for transitioning the inner surface of the bore from the first inner diameter to the second inner diameter, the bore being unobstructed within the first inner diameter and the second inner diameter between the input end of the bore and the output end of the bore.