Patent ID: 11953423
Assignee: OAK ANALYTICS INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An apparatus comprising:
a body having a first tubular shape, a first body end, and a second body end aligned with a center axis, the body comprising:
a body cavity shaped according to the first tubular shape to accommodate a chamber, the chamber having a second tubular shape, a first chamber end and a second chamber end;
an entry port at the first body end;
a glass window at the entry port positioned in alignment with the center axis;
a shoulder disposed on the glass window and configured to retain the first chamber end; and
a cap receptacle at the second body end,
wherein the body cavity is configured to hold an analyte; and

a cap configured to mate with the cap receptacle to secure the second chamber end, the cap comprising:
a reflection mirror mounted on a mirror carrier positioned through the center axis and configured to return an optical signal back toward the glass window;
a centering ring configured to hold the second chamber end to keep the chamber in place; and
a sealing gasket configured to seal the cap and the cap receptacle when the cap is tightened to seal the body;
wherein the chamber is configured to be inserted into the body cavity filled with the analyte,
wherein the reflection mirror is spaced from a surface of the chamber at the second chamber end by a gap after the chamber is fully inserted into the body cavity and prior to tightening the cap, and
wherein the reflection mirror is in contact with the surface as the cap is tightened to seal the body.