Patent ID: 9726582
Date: 2017-08-08
CPC Classifications: B01L,G01N,Y10T

Claim:
1. A port comprising: a) a first section having a frusto-conical shape, a first end with an internal diameter A, and a second end with an internal diameter B, wherein B is less than A; b) a second section having a frusto-conical shape, a first end with an internal diameter C, a second end with an internal diameter D, a longitudinal axis extending from said first end to said second end, and a substantially circular internal surface along said longitudinal axis, wherein C is less than B, D is greater than C, and wherein said first end of said second section is adjacent to and in fluid flow communication with said second end of said first section; c) a third section having a frusto-conical shape, a first end with an internal diameter E, a second end with an internal diameter F, a longitudinal axis extending from said first end to said second end, and a substantially circular internal surface along said longitudinal axis, wherein E is less than C, wherein F is greater than E, and wherein said first end of said third section is adjacent to and in fluid flow communication with said second end of said second section; d) a base section having a first end with a diameter G and a second end, wherein G is less than E, wherein said first end of said base section is adjacent to and in fluid flow communication with said second end of said third section.